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Uppsala University
1.
Ekman, Frida; Englund, Sofia; Spengler, Clara; Norberg, Anna; Ros, Sofia Alexandersson; Barge, Unni.
Dammars påverkan på vattenflöden i Arktis.
Degree: Earth Sciences, 2018, Uppsala University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-351933 
► Arktis är ett känsligt område som påverkas kraftigt av de globala klimatförändringarna. Temperaturökningen leder bland annat till att permafrost tinar, isar smälter och nederbörden…
(more)
▼ Arktis är ett känsligt område som påverkas kraftigt av de globala klimatförändringarna. Temperaturökningen leder bland annat till att permafrost tinar, isar smälter och nederbörden ökar. Klimatförändringar sker snabbt i Arktis och det finns en del forskning om varför dessa förändringar sker, men mer forskning behövs. Det finns även mycket direkt påverkan i Arktis orsakat av människan, till exempel dammbyggen, och hur dessa påverkar Arktis hydrologi är lite mer osäkert. Mätningar visar bland annat att vattenflöden i Arktis floder har ökat under de senaste decennierna. Målet med det här projektet var att undersöka hur dammar i Kanada påverkat vattenflödena i Arktis floder. Ett dammsystem bestående av två vattenkraftsdammar, W.A.C. Bennett och Peace Canyon, och en vattenförsörjningsdamm, Glenmore, valdes för studien. Frågeställningen var dels att se hur påverkan på vattenflödet skiljer sig mellan dammar med olika funktioner och dels att se hur dammarna respektive klimatet påverkat månadsoch årsmedelflödena över tid. De dammar som undersöktes valdes ut med hjälp av ArcGIS, ett geografiskt informationssystem. I urvalsprocessen togs det hänsyn till att dammarna skulle vara tillräckligt stora, ha mätstationer precis nedströms dammen samt mätstationer i närheten som var opåverkade av dammarna. De mätstationer som var opåverkade av dammarna räknades som klimatreferenser. Önskemålet var att erhålla tidsserier tillräckligt långa för att inkludera både tiden före, under och efter dammbyggnationen. För trendanalysen av datan användes Mann-Kendalls test. Analyserna visade att vattenflödet påverkas på olika sätt av en vattenkraftsdamm och en vattenförsörjningsdamm, vilket var förväntat. Det sågs inget entydigt stöd för att klimatförändringarna påverkat vattenflödet, då inte alla opåverkade mätstationer uppvisade signifikanta trender. Signifikanta trender sågs främst för perioden 1969 till nutid, framför allt i mätstationer påverkade av damm. Om det är dammarna eller klimatet som ligger bakom dessa trender är ännu oklart, fler framtida studier krävs.
Subjects/Keywords: Arktis; Natural Sciences; Naturvetenskap
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APA (6th Edition):
Ekman, Frida; Englund, Sofia; Spengler, Clara; Norberg, Anna; Ros, Sofia Alexandersson; Barge, U. (2018). Dammars påverkan på vattenflöden i Arktis. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-351933
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ekman, Frida; Englund, Sofia; Spengler, Clara; Norberg, Anna; Ros, Sofia Alexandersson; Barge, Unni. “Dammars påverkan på vattenflöden i Arktis.” 2018. Thesis, Uppsala University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-351933.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ekman, Frida; Englund, Sofia; Spengler, Clara; Norberg, Anna; Ros, Sofia Alexandersson; Barge, Unni. “Dammars påverkan på vattenflöden i Arktis.” 2018. Web. 19 Jan 2020.
Vancouver:
Ekman, Frida; Englund, Sofia; Spengler, Clara; Norberg, Anna; Ros, Sofia Alexandersson; Barge U. Dammars påverkan på vattenflöden i Arktis. [Internet] [Thesis]. Uppsala University; 2018. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-351933.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ekman, Frida; Englund, Sofia; Spengler, Clara; Norberg, Anna; Ros, Sofia Alexandersson; Barge U. Dammars påverkan på vattenflöden i Arktis. [Thesis]. Uppsala University; 2018. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-351933
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Tampere University
2.
Hangaslammi, Sini.
Arktis ja muuttuva suvereniteetti : Diskurssianalyysi Kanadan liittovaltiohallinnon ja inuiittijärjestöjen suvereniteettikäsityksistä
.
Degree: 2017, Tampere University
URL: https://trepo.tuni.fi/handle/10024/100929
► Suvereniteetti on keskeinen käsite kansainvälisessä politiikassa, mutta sen määritelmä on kiistelty. Tarkastelen pro gradu -tutkielmassani Kanadan liittovaltiohallinnon ja inuiitteja edustavien järjestöjen suvereniteettikäsityksiä liittyen arktiseen alueeseen.…
(more)
▼ Suvereniteetti on keskeinen käsite kansainvälisessä politiikassa, mutta sen määritelmä on kiistelty. Tarkastelen pro gradu -tutkielmassani Kanadan liittovaltiohallinnon ja inuiitteja edustavien järjestöjen suvereniteettikäsityksiä liittyen arktiseen alueeseen. Arktisen alueen muuttuvat olosuhteet ja erityisesti ilmastonmuutos ovat nostaneet esiin kysymyksiä siitä, miten muuttuva ympäristö vaikuttaa alueen rajanvetoihin ja omistajuuskysymyksiin. Kun käydään keskustelua suvereniteetista, käydään väistämättä keskustelua myös siitä, kenen ääni kuuluu ja kenellä on oikeus osallistua päätöksentekoon. Perinteisesti suvereniteetti on liitetty valtion käsitteeseen, mutta myös ei-valtiolliset toimijat osallistuvat sen määrittämiseen.
Tarkastelen työssäni Kanadan liittovaltiohallinnon sekä Kanadan kansallisen inuiittijärjestön Inuit Tapiirit Kanatamin (ITK) ja Inuiittien sirkumpolaarisen neuvoston (ICC) suvereniteettikäsityksiä. Tutkimuskysymykseni on, minkälaisia suvereniteettikäsityksiä Kanadan liittovaltiohallinnon ja inuiittijärjestöjen arktisiin linjauksiin sisältyy ja millä tavoin käsitykset kohtaavat tai eroavat toisistaan. Tarkoituksenani on tarkastella suvereniteetin käsitettä erilaisten toimijoiden näkökulmasta ja samalla pureutua kiistellyn käsitteen merkitykseen kansainvälisen politiikan maailmaa määrittävänä piirteenä. Tutkimus avaa ikkunan tarkastella historiallisesti muuttuvaa suvereniteettia arktisen alueen esimerkin kautta ja arvioida sen merkitystä totutulle maailmanjärjestykselle.
Kansainvälisen politiikan oppialan keskustelu suvereniteetin käsitteestä tarjoaa teoreettisen taustan tutkimukselle. Suvereniteetti on kansainvälisen politiikan oppialalla laajasti käsitelty, mutta samanaikaisesti kiistanalainen käsite. Tarkastelen tutkielmassani suvereniteettia perinteisen valtiosuvereniteetin näkökulmasta ja sosiaalisena konstruktiona. Pohdin myös suvereniteetin heikkenemistä käsittelevää kirjallisuutta ja suvereniteetin määrittämän westfalenilaisen maailmanjärjestyksen murrosta. Menetelmällinen suuntaukseni pohjautuu diskurssianalyysille. Tutkimusaineisto koostuu Kanadan liittovaltiohallinnon arktista politiikka käsittelevistä asiakirjoista sekä Kanadan liittovaltiohallinnon edustajien puheista. Inuiittijärjestöiltä tarkastelussa on ICC:n suvereniteettijulistus sekä puheita ja lehdistötiedotteita. Ajallisesti aineisto rajautuu vuosiin 2006-2015, jolloin Kanadan johdossa oli Stephen Harperin johtama konservatiivipuolue.
Tutkielmasta käy ilmi, että toimijoiden suvereniteettikäsitykset eroavat toisistaan. Kanadan liittovaltiohallinnon suvereniteettikäsitys määrittelee suvereniteetin territoriaalisuudeksi, historiallisesti saavutetuksi ja valtiokeskeiseksi. Inuiittijärjestöjen suvereniteettikäsitys taas käsittää suvereniteetin historiallisesti periytyväksi, oikeudeksi osallistua ja yhteisöjen sisäiseksi vahvuudeksi. Kanadan liittovaltiohallinnon suvereniteettikäsitys perustuu käsityksiin perinteisestä valtiosuvereniteetista. Se järjestää maailman totuttuun tapaan westfalenilaiseen järjestelmään, jossa…
Subjects/Keywords: kansainvälinen politiikka;
suvereniteetti;
Arktis;
Kanada;
alkuperäiskansat
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APA (6th Edition):
Hangaslammi, S. (2017). Arktis ja muuttuva suvereniteetti : Diskurssianalyysi Kanadan liittovaltiohallinnon ja inuiittijärjestöjen suvereniteettikäsityksistä
. (Masters Thesis). Tampere University. Retrieved from https://trepo.tuni.fi/handle/10024/100929
Chicago Manual of Style (16th Edition):
Hangaslammi, Sini. “Arktis ja muuttuva suvereniteetti : Diskurssianalyysi Kanadan liittovaltiohallinnon ja inuiittijärjestöjen suvereniteettikäsityksistä
.” 2017. Masters Thesis, Tampere University. Accessed January 19, 2020.
https://trepo.tuni.fi/handle/10024/100929.
MLA Handbook (7th Edition):
Hangaslammi, Sini. “Arktis ja muuttuva suvereniteetti : Diskurssianalyysi Kanadan liittovaltiohallinnon ja inuiittijärjestöjen suvereniteettikäsityksistä
.” 2017. Web. 19 Jan 2020.
Vancouver:
Hangaslammi S. Arktis ja muuttuva suvereniteetti : Diskurssianalyysi Kanadan liittovaltiohallinnon ja inuiittijärjestöjen suvereniteettikäsityksistä
. [Internet] [Masters thesis]. Tampere University; 2017. [cited 2020 Jan 19].
Available from: https://trepo.tuni.fi/handle/10024/100929.
Council of Science Editors:
Hangaslammi S. Arktis ja muuttuva suvereniteetti : Diskurssianalyysi Kanadan liittovaltiohallinnon ja inuiittijärjestöjen suvereniteettikäsityksistä
. [Masters Thesis]. Tampere University; 2017. Available from: https://trepo.tuni.fi/handle/10024/100929
Johannes Gutenberg Universität Mainz
3.
Ehrlich, Andre.
The impact of ice crystals on radiative forcing and remote sensing of arctic boundary-layer mixed-phase clouds.
Degree: 2009, Johannes Gutenberg Universität Mainz
URL: http://ubm.opus.hbz-nrw.de/volltexte/2009/2001/
► This PhD thesis is embedded into the Arctic Study of Tropospheric Aerosol, Clouds and Radiation (ASTAR) and investigates the radiative transfer through Arctic boundary-layer mixed-phase…
(more)
▼ This PhD thesis is embedded into the Arctic Study of Tropospheric Aerosol, Clouds and Radiation (ASTAR) and investigates the radiative transfer through Arctic boundary-layer mixed-phase (ABM) clouds. For this purpose airborne spectral solar radiation measurements and simulations of the solar and thermal infrared radiative transfer have been
performed. This work reports on measurements with the Spectral Modular Airborne Radiation measurement sysTem (SMART-Albedometer) conducted in the framework of ASTAR in April 2007 close to Svalbard. For ASTAR the SMART-Albedometer was extended to measure spectral radiance. The development and calibration of the radiance measurements are described in this work. In combination with in situ measurements of cloud particle properties provided by the Laboratoire de M¶et¶eorologie Physique (LaMP) and simultaneous airborne lidar measurements by the Alfred Wegener Institute for Polar and Marine Research (AWI) ABM clouds were sampled. The SMART-Albedometer measurements were used to retrieve the cloud thermodynamic phase by three different
approaches. A comparison of these results with the in situ and lidar measurements is presented in two case studies. Beside the dominating mixed-phase clouds pure ice clouds were found in cloud gaps and at the edge of a large cloud field. Furthermore the vertical distribution of ice crystals within ABM clouds was investigated. It was found that ice crystals at cloud top are necessary to describe the observed SMART-Albedometer measurements. The impact of ice crystals on the radiative forcing of ABM clouds is in vestigated by extensive radiative transfer simulations. The solar and net radiative forcing was found to depend on the ice crystal size, shape and the mixing ratio of ice crystals and liquid water droplets.
Diese Dissertation ist innerhalb eines Teilprojekts des Internationalen Polarjahres (IPY) namens ASTAR (Arctic Study of Tropospheric Aerosol, Clouds and Radiation) entstanden. Dabei wurde der Strahlungstransfer in arktischen Mischphasenwolken untersucht. Zu diesem Zweck wurden flugzeuggetragenen Messungen der spektral aufgelösten solaren Strahlung durchgeführt. Desweiteren wurde der solare sowie langwellige Strahlungstransfer mittels Modellen simuliert. In dieser Arbeit werden Messungen mit dem SMART-Albedometer (Spectral Modular Airborne Radiation measurement sysTem) präsentiert, die im Rahmen von ASTAR im April 2007 in der Umgebung von Spitzbergen aufgezeichnet wurden. Für ASTAR wurde das SMART-Albedometer für Messungen der spektralen Strahlungsflussdichte (Radianz) erweitert. Die Entwicklung und Kalibrierungen der Radianzmessungen sind in der Arbeit beschrieben. In Kombination mit In-Situ-Messungen der Eigenschaften von Wolkenpartikeln, zur Verfügung gestellt durch das Laboratoire de Météorologie Physique (LAMP), und gleichzeitigen flugzeuggetragenen Lidarmessungen durch das Alfred-Wegener Institut for Polar- und Meeresforschung (AWI) wurden arktische Grenzschichtwolken untersucht. Die Messungen des SMART-Albedometer wurden zur Identifizierung…
Subjects/Keywords: Strahlung, Arktis, Wolken, Mischphase; radiation, Arctic, clouds, mixed-phase; Earth sciences
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APA ·
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APA (6th Edition):
Ehrlich, A. (2009). The impact of ice crystals on radiative forcing and remote sensing of arctic boundary-layer mixed-phase clouds. (Doctoral Dissertation). Johannes Gutenberg Universität Mainz. Retrieved from http://ubm.opus.hbz-nrw.de/volltexte/2009/2001/
Chicago Manual of Style (16th Edition):
Ehrlich, Andre. “The impact of ice crystals on radiative forcing and remote sensing of arctic boundary-layer mixed-phase clouds.” 2009. Doctoral Dissertation, Johannes Gutenberg Universität Mainz. Accessed January 19, 2020.
http://ubm.opus.hbz-nrw.de/volltexte/2009/2001/.
MLA Handbook (7th Edition):
Ehrlich, Andre. “The impact of ice crystals on radiative forcing and remote sensing of arctic boundary-layer mixed-phase clouds.” 2009. Web. 19 Jan 2020.
Vancouver:
Ehrlich A. The impact of ice crystals on radiative forcing and remote sensing of arctic boundary-layer mixed-phase clouds. [Internet] [Doctoral dissertation]. Johannes Gutenberg Universität Mainz; 2009. [cited 2020 Jan 19].
Available from: http://ubm.opus.hbz-nrw.de/volltexte/2009/2001/.
Council of Science Editors:
Ehrlich A. The impact of ice crystals on radiative forcing and remote sensing of arctic boundary-layer mixed-phase clouds. [Doctoral Dissertation]. Johannes Gutenberg Universität Mainz; 2009. Available from: http://ubm.opus.hbz-nrw.de/volltexte/2009/2001/
University of Oslo
4.
Holmen, Silje Eriksen.
Trends and variability in transport of persistent organic pollutants (POPs) to the Arctic and possible relation to climate change.
Degree: 2009, University of Oslo
URL: http://urn.nb.no/URN:NBN:no-21872
;
https://www.duo.uio.no/handle/10852/12614
;
Fulltext
https://www.duo.uio.no/bitstream/handle/10852/12614/1/SiljeEHolmen_MSc-thesis.pdf
► In this thesis, transport pathways, temporal trends and seasonality of persistent organic pollutants (POPs) in the Arctic are examined. These pollutants, which can be transported…
(more)
▼ In this thesis, transport pathways, temporal trends and seasonality of persistent organic pollutants (POPs) in the Arctic are examined. These pollutants, which can be transported over long distances, constitute a great threat to humans and wildlife because they can accumulate in fatty tissue and lead to e.g. hormon production failure and even death.
Atmospheric POP measurements from the Zeppelin monitoring station in Ny-Ålesund, Svalbard, from 1993 to 2007 and an ice core collected from Kongsvegen glacier near Ny-Ålesund covering the years from 1994 to 2005 were analyzed for temporal variations in different POP concentrations. These data were then correlated to large scale atmospheric patterns (North Atlantic Oscillation and Arctic Oscillation) and transport pathways. The latter were estimated from the transport model FLEXPART, empolying CO as an emission tracer.
Results show that seasonal variations of POPs are influenced by temperature, photochemistry, meteorology, application patterns and snow melt. It is also found that POP concentrations are generally declining, in accordance with the downward trends in POP emissions. Levels of HCB and high-chlorinated PCBs have increased since approximately 2005, probably because of the increasing number of boreal forest fires and because of temperature increase, leading to re-emissions from oceans and soil.
Continent analysis of POPs shows that in general, Europe is the continent associated with PCB events detected at Zeppelin. Pesticides, especially gamma-HCH and chlordanes, are mainly transported to Svalbard from Asia because they are most heavily used there. North American events seldom lead to enhanced POP levels at Zeppelin because compounds are often washed out on the way. Correlations between NAO and PCBs and between AO and pesticides were found, though not very strong.
The data from the ice core were compared with the air measurements to examine the relationship between the two data sets. This has never before been done for ice cores collected in Svalbard. The analysis shows three "zones" in the ice core; a surface layer, containing low concentrations of POPs, an accumulation zone, showing significantly higher concentrations, and a background level, showing lower and more stable concentrations compared to the accumulation zone. Correlations between the data series in air and ice for gamma-HCH and HCB were calculated, but no correlations were found.
Advisors/Committee Members: Frode Stordal (UiO), Roland Kallenborn (UNIS/NILU).
Subjects/Keywords: meteorologi oseanografi arktis klima organisk forurensning hovedoppgaver UNIS Svalbard; VDP::450
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APA (6th Edition):
Holmen, S. E. (2009). Trends and variability in transport of persistent organic pollutants (POPs) to the Arctic and possible relation to climate change. (Thesis). University of Oslo. Retrieved from http://urn.nb.no/URN:NBN:no-21872 ; https://www.duo.uio.no/handle/10852/12614 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12614/1/SiljeEHolmen_MSc-thesis.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Holmen, Silje Eriksen. “Trends and variability in transport of persistent organic pollutants (POPs) to the Arctic and possible relation to climate change.” 2009. Thesis, University of Oslo. Accessed January 19, 2020.
http://urn.nb.no/URN:NBN:no-21872 ; https://www.duo.uio.no/handle/10852/12614 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12614/1/SiljeEHolmen_MSc-thesis.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Holmen, Silje Eriksen. “Trends and variability in transport of persistent organic pollutants (POPs) to the Arctic and possible relation to climate change.” 2009. Web. 19 Jan 2020.
Vancouver:
Holmen SE. Trends and variability in transport of persistent organic pollutants (POPs) to the Arctic and possible relation to climate change. [Internet] [Thesis]. University of Oslo; 2009. [cited 2020 Jan 19].
Available from: http://urn.nb.no/URN:NBN:no-21872 ; https://www.duo.uio.no/handle/10852/12614 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12614/1/SiljeEHolmen_MSc-thesis.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Holmen SE. Trends and variability in transport of persistent organic pollutants (POPs) to the Arctic and possible relation to climate change. [Thesis]. University of Oslo; 2009. Available from: http://urn.nb.no/URN:NBN:no-21872 ; https://www.duo.uio.no/handle/10852/12614 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12614/1/SiljeEHolmen_MSc-thesis.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Uppsala University
5.
Anton, Nygren.
Black Carbons Effects on Climate : Can We Even Say Something about Them?.
Degree: LUVAL, 2016, Uppsala University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-287476
► Black carbon affects the atmosphere, clouds, and the albedo of snow. These effects of black carbon are a fact but exactly what they entail…
(more)
▼ Black carbon affects the atmosphere, clouds, and the albedo of snow. These effects of black carbon are a fact but exactly what they entail is not well known. The atmosphere, the albedo in ice crystals and snow (due to warming of the snows’ surface), clouds’ life time and cloud cover are all influenced because black carbon absorbs radiation, thus altering the radiative forcing (RF).Many models and measurements have been done to evaluate the effects of black carbon but they show very different results. This literature study examines papers and articles to see what and how much we know about black carbon and its climate effects. I conclude that there have been great differences in results that are evident due to the span that black carbon is thought to change the RF in the atmosphere (results ranging from +0.4 to +1.2 Wm-2), and snow (+0.007 to +0.054 Wm-2), as well as the albedo in snow (results ranging from -0.02 to -0.17, only including the results from studies with BC concentration of 1000 ng/g for increased comparability). I as well as many others suggest that models tend to get very different results because they use different starting conditions and equations and because models handle aerosols and clouds in different ways. This is largely because of a lack of information, especially concerning aerosols and clouds.
Sot påverkar atmosfären, moln och albedot i snö. Dessa effekter av sot är ett faktum, men exakt vad de innebär är inte väl känt. Atmosfären, albedo i iskristaller och snö, uppvärmningen av snö och isytor, molns livstid och molntäckets utbredning påverkas av sot eftersom sot absorberar strålning, vilket förändra strålningsdrivningen och kan förånga moln, och att sot kan vara nuklider som kan skapa moln.Många modeller och mätningar har gjorts för att utvärdera effekterna av sot men de visar mycket olika resultat. Denna litteraturstudie undersöker artiklar för att se vad och hur mycket vi vet om sot och dess klimatpåverkan. Jag drar slutsatsen att det har finns stora skillnader i resultat vilket återspeglas i det stora intervall som sot tros ändra strålningsdrivningen i atmosfären (resultat som sträcker sig från 0,4 till 1,2 Wm-2) och snö (0,007 till 0.054 Wm-2), liksom albedo i snö (resultat som sträcker sig från -0,02 till -0,17 Wm-2). Jag samt mång andra föreslår att modeller tenderar att få väldigt olika resultat eftersom de använder olika startvillkor, ekvationer och eftersom modellerna hanterar aerosoler och moln på olika sätt. Detta är till stor del på grund av bristande information, särskilt när det gäller aerosoler och moln.
Subjects/Keywords: Black carbon; climate; China; Arctic; Sot; klimat; Kina; Arktis
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APA ·
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APA (6th Edition):
Anton, N. (2016). Black Carbons Effects on Climate : Can We Even Say Something about Them?. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-287476
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Anton, Nygren. “Black Carbons Effects on Climate : Can We Even Say Something about Them?.” 2016. Thesis, Uppsala University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-287476.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Anton, Nygren. “Black Carbons Effects on Climate : Can We Even Say Something about Them?.” 2016. Web. 19 Jan 2020.
Vancouver:
Anton N. Black Carbons Effects on Climate : Can We Even Say Something about Them?. [Internet] [Thesis]. Uppsala University; 2016. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-287476.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Anton N. Black Carbons Effects on Climate : Can We Even Say Something about Them?. [Thesis]. Uppsala University; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-287476
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Gothenburg / Göteborgs Universitet
6.
Langlais, Richard, 1956-.
Reformulating security : a case study from Arctic Canada.
Degree: 1995, University of Gothenburg / Göteborgs Universitet
URL: http://hdl.handle.net/2077/12440
Subjects/Keywords: Biologi Ekologi Arktis; Fredsfrågor Nedrustningsfrågor
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APA (6th Edition):
Langlais, Richard, 1. (1995). Reformulating security : a case study from Arctic Canada. (Thesis). University of Gothenburg / Göteborgs Universitet. Retrieved from http://hdl.handle.net/2077/12440
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Langlais, Richard, 1956-. “Reformulating security : a case study from Arctic Canada.” 1995. Thesis, University of Gothenburg / Göteborgs Universitet. Accessed January 19, 2020.
http://hdl.handle.net/2077/12440.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Langlais, Richard, 1956-. “Reformulating security : a case study from Arctic Canada.” 1995. Web. 19 Jan 2020.
Vancouver:
Langlais, Richard 1. Reformulating security : a case study from Arctic Canada. [Internet] [Thesis]. University of Gothenburg / Göteborgs Universitet; 1995. [cited 2020 Jan 19].
Available from: http://hdl.handle.net/2077/12440.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Langlais, Richard 1. Reformulating security : a case study from Arctic Canada. [Thesis]. University of Gothenburg / Göteborgs Universitet; 1995. Available from: http://hdl.handle.net/2077/12440
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Gothenburg / Göteborgs Universitet
7.
Rudels, Bert, 1945-.
On the exchange of water masses between the Polar Ocean and the North Atlantic.
Degree: 1987, University of Gothenburg / Göteborgs Universitet
URL: http://hdl.handle.net/2077/13865
Subjects/Keywords: Oceanografi Arktis; Oceanografi Atlanten
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APA (6th Edition):
Rudels, Bert, 1. (1987). On the exchange of water masses between the Polar Ocean and the North Atlantic. (Thesis). University of Gothenburg / Göteborgs Universitet. Retrieved from http://hdl.handle.net/2077/13865
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Rudels, Bert, 1945-. “On the exchange of water masses between the Polar Ocean and the North Atlantic.” 1987. Thesis, University of Gothenburg / Göteborgs Universitet. Accessed January 19, 2020.
http://hdl.handle.net/2077/13865.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Rudels, Bert, 1945-. “On the exchange of water masses between the Polar Ocean and the North Atlantic.” 1987. Web. 19 Jan 2020.
Vancouver:
Rudels, Bert 1. On the exchange of water masses between the Polar Ocean and the North Atlantic. [Internet] [Thesis]. University of Gothenburg / Göteborgs Universitet; 1987. [cited 2020 Jan 19].
Available from: http://hdl.handle.net/2077/13865.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Rudels, Bert 1. On the exchange of water masses between the Polar Ocean and the North Atlantic. [Thesis]. University of Gothenburg / Göteborgs Universitet; 1987. Available from: http://hdl.handle.net/2077/13865
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Uppsala University
8.
Larsson, Hanna.
Den smältande polarisens effekt på de endemiska valarna i Arktis.
Degree: Biology Education Centre, 2014, Uppsala University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-230900
► Klimatförändringarna har en stor påverkan på de arktiska valarna grönlandsval (Balaena mysticetus), vitval (Delphinapterus leucas) och narval (Monodon monoceros), mer än vad som tros…
(more)
▼ Klimatförändringarna har en stor påverkan på de arktiska valarna grönlandsval (Balaena mysticetus), vitval (Delphinapterus leucas) och narval (Monodon monoceros), mer än vad som tros vid en första tanke. I dagsläget får dessa valar utstå stora utmaningar som troligenkan komma att förvärras i framtiden om inte isens smältande kan bromsas. En del av utmaningarna innebär att valarna måste genomgå stora förändringar för att överleva, vilket innebär att deras förmåga att anpassa sig spelar en stor roll. Människans jakt på valen har alltid varit ett stort problem för de arktiska valarna, tack vare restriktioner om fångstkvoter och vem som får jaga val ser framtiden ljusare ut i alla fall för grönlandsvalen och vitvalen. För narvalen ser det dock inte lika ljust ut eftersom det är en art som är känsligare än många andra arktiska arter för effekterna som den globala uppvärmningen har på den arktiska miljön. I dagsläget har en del effekter på valarna blivit synliga såsom ändrade migrationsvanor och ökad predation. På grund av bristande data från perioden innan klimatförändringarna är detsvårt att dra konkreta slutsatser, därför fokuserar mycket forskning på att förutse vad som kommer att ske i framtiden. Fokus på framtiden är viktigt eftersom det som sker idag redan är försent att göra någonting åt, det vi kan göra är att se till att det inte blir ännu värre. Den smältande isens effekter är svåra att skilja på då de överlappar en del, till exempel leder tillgången på föda till förändringar i habitat. Man har i dagsläget sett små skillnader i tillgång på föda, beståndet av istorsken har minskat, eftersom det är en viktig föda för de arktiska valarna kan det ha en effekt. En minskning av en viss typ av plankton har också observerats och eftersom ingen ersättande art har setts kommer detta få effekter på näringsväven i de arktiska haven och därmed alla arter som lever där inklusive de arktiska valarna. I framtiden tror man att primärproduktionen kommer att öka på grund av den höjda vattentemperaturen och den ökande ytan med öppet vatten, detta kommer eventuellt ha en positiv effekt på de arktiska valarna.
Subjects/Keywords: valar; arktis; narval; vitval; grönlandsval; Balaena mysticetus; Delphinapterus leucas; Monodon monoceros
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APA (6th Edition):
Larsson, H. (2014). Den smältande polarisens effekt på de endemiska valarna i Arktis. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-230900
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Larsson, Hanna. “Den smältande polarisens effekt på de endemiska valarna i Arktis.” 2014. Thesis, Uppsala University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-230900.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Larsson, Hanna. “Den smältande polarisens effekt på de endemiska valarna i Arktis.” 2014. Web. 19 Jan 2020.
Vancouver:
Larsson H. Den smältande polarisens effekt på de endemiska valarna i Arktis. [Internet] [Thesis]. Uppsala University; 2014. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-230900.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Larsson H. Den smältande polarisens effekt på de endemiska valarna i Arktis. [Thesis]. Uppsala University; 2014. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-230900
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
9.
Nylander, Marcus.
Norsk upprustning i Arktis.
Degree: Swedish Defence University, 2012, Swedish Defence University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-2796
► Arktis blir allt hetare i den globala politiken då det tros finnas stora mängder olja och gas under den tjocka havsisen som har börjat…
(more)
▼ Arktis blir allt hetare i den globala politiken då det tros finnas stora mängder olja och gas under den tjocka havsisen som har börjat dra sig tillbaka. Den norska regering har även proklamerat Norges nordområden som de strategiskviktigaste för landet den kommande framtiden. Norges utveckling och val av handlingsvägar i Arktis har präglats av Ryssland i högsta grad, en överenskommelse som löste en gammal gränstvist visar på ett ökat samarbete mellan länderna, även olika gemensamma övningar ger sken av ett ökat samarbete i norr. Men samtidigt så har Rysslads återuppväckta stormaktsambitioner speglats i agerandet från Norges sida med omorientering av försvarsmakten mot norra delen av landet samtidigt som inköpet av F-35 fortskrider och även en modernisering samt utökning av Norges stridsfordonspark ska genomföras. Resultatet av uppsatsen visar på hur Norge anpassar sig mot en ny säkerhetspolitisk arena i sitt direkta närområde som med nya utmaningar ställer annorlunda krav jämfört med tidigare decennium.
The Arctic is becoming hotter in the global political arena since it’s believed that below the sea and ice one of the largest oil and gas deposits in the world is hidden. Due to this fact the Norwegian government has proclaimed the area is to be the nation’s strategic focus in the foreseeable future. The road the Norwegian government has chosen for the country has been largely influenced by their Russian neighbors and with whom they have started different military cooperation’s with and they have solved an old border dispute which traces back to the 1970s. At the same time the newly awoke Russian confidences and rearmament is also reflecting in how Norway’s military is adapting to the new arena in the north with the supreme HQ has been moved above the polar circle and the acquisition of the F-35 as well as the modernization of its CV90 pool. The result of this paper will show that this is not a reverse in time back to the cold war we see, but instead the political focus is shifting and with it the military’s ability to act in the new arena in the arctic.
Subjects/Keywords: Arktis; Norge; upprustning; nordkalotten; olja; gas.; Other Social Sciences; Annan samhällsvetenskap
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APA (6th Edition):
Nylander, M. (2012). Norsk upprustning i Arktis. (Thesis). Swedish Defence University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-2796
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Nylander, Marcus. “Norsk upprustning i Arktis.” 2012. Thesis, Swedish Defence University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-2796.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Nylander, Marcus. “Norsk upprustning i Arktis.” 2012. Web. 19 Jan 2020.
Vancouver:
Nylander M. Norsk upprustning i Arktis. [Internet] [Thesis]. Swedish Defence University; 2012. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-2796.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Nylander M. Norsk upprustning i Arktis. [Thesis]. Swedish Defence University; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-2796
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Mid Sweden University
10.
Qvist, Jennie Olsson.
Orenat avloppsutsläpp på Svalbard : En studie om ansvarstagande över marina miljöer i Arktis.
Degree: Ecotechnology and Sustainable Building Engineering, 2016, Mid Sweden University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-30691
► Svalbard är en arktisk ögrupp i Norra ishavet som förvaltas av Norge och huvudorten är Longyearbyen. I Longyearbyen och som på alla andra platser…
(more)
▼ Svalbard är en arktisk ögrupp i Norra ishavet som förvaltas av Norge och huvudorten är Longyearbyen. I Longyearbyen och som på alla andra platser pågår förorenande aktiviteter, denna rapport är avgränsad till utsläpp via avloppsvatten till marina miljöer. I Arktis märks klimatförändringarna tydligt, det finns många olika styrmedel som skulle kunna förhindra föroreningen av dessa sårbara områden. Styrmedel som det visat sig under arbetet med den här rapporten inte fungerar som det var tänkt, med åsyftan på avloppshanteringen i Longyearbyen. Det finns inget avloppsreningsverk i byn där det bor ca 2300 fastboende och gästdygnen uppgick år 2015 till 128 000. Utsläppet av det orenade avloppsvattnet ut i Adventfjorden tillåts av det kravställande organet Sysselmannen på Svalbard, som gett kommunen tillstånd med lagstöd i Svalbardmiljöloven, att systematiskt släppa ut det förorenade avloppsvattnet. Målet med denna rapport är att undersöka den nuvarande utsläppssituationen med gällande styrmedel och att förstå varför tillståndet till utsläppet av det orenade avloppsvattnet getts. Resultatet visar att formuleringen av handlingsregler och avsaknad av delmål, indikatorer och återkopplingsmekanismer för genomdrivande av styrmedel, är anledningen till varför styrmedlet inte fungerar som tänkt. Detta viktiga resultat kan leda till en förändring vid genomdrivandet av styrmedlet, så att det kan uppnå sin fulla potential. Med klara och tydliga målsättningar vid utformandet av styrmedel uppnår de sina syften. Kontentan av den här rapporten är att styrmedel som används på rätt sätt kan beskydda de sårbara Arktiska marina miljöerna.
Svalbard is an Arctic Archipelago in the Arctic Ocean that is governed by Norway and the main city is Longyearbyen. In Longyearbyen, much like any other place, there is contaminating activities going on. This report is concentrated on the emissions via sewage water into marine environments. In the Arctic, climate change is very noticeable and there are many different instruments that could prevent the pollution of these vulnerable areas. During the time working on this report these instruments have shown that they are not functioning as supposed, with regards to the sewage management in Longyearbyen. There is no sewerage in the town which inhabits 2300 permanent residents and where there were, in the year of 2015, 128 000 overnight stays of tourists. The pollution of the unfiltered sewage water allowed into Adventfjorden has been permitted by the governing organisation, Sysselmannen on Svalbard. Sysselmannen has given the municipality permission with support from the environmental protection law of Svalbard (Svalbardmiljøloven) to systematically release the polluted water into the marine environments. The goal with this report is to examine the current pollution situation with the existing governance and to understand why it has been permitted to release untreated sewage water into the fjord. The result shows that the reason…
Subjects/Keywords: Arctic; sewage; pollution; marine environments; Arktis; Svalbard; Spitsbergen; Longyearbyen; Adventfjorden; avlopp; utsläpp; förorening; marina miljöer; Arktis; Svalbard; Spitsbergen; Longyearbyen; Adventfjorden; avløp; utslipp; forurensning; marine miljøer; Environmental Sciences; Miljövetenskap
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APA (6th Edition):
Qvist, J. O. (2016). Orenat avloppsutsläpp på Svalbard : En studie om ansvarstagande över marina miljöer i Arktis. (Thesis). Mid Sweden University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-30691
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Qvist, Jennie Olsson. “Orenat avloppsutsläpp på Svalbard : En studie om ansvarstagande över marina miljöer i Arktis.” 2016. Thesis, Mid Sweden University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-30691.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Qvist, Jennie Olsson. “Orenat avloppsutsläpp på Svalbard : En studie om ansvarstagande över marina miljöer i Arktis.” 2016. Web. 19 Jan 2020.
Vancouver:
Qvist JO. Orenat avloppsutsläpp på Svalbard : En studie om ansvarstagande över marina miljöer i Arktis. [Internet] [Thesis]. Mid Sweden University; 2016. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-30691.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Qvist JO. Orenat avloppsutsläpp på Svalbard : En studie om ansvarstagande över marina miljöer i Arktis. [Thesis]. Mid Sweden University; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-30691
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Johannes Gutenberg Universität Mainz
11.
Schmale, Julia Yvonne.
Aircraft-based in-situ aerosol mass spectrometry: Chemical characterization and source identification of submicron particulate matter in the free and upper troposphere and lower stratosphere.
Degree: 2011, Johannes Gutenberg Universität Mainz
URL: http://ubm.opus.hbz-nrw.de/volltexte/2011/2920/
► The composition of the atmosphere is frequently perturbed by the emission of gaseous and particulate matter from natural as well as anthropogenic sources. While the…
(more)
▼ The composition of the atmosphere is frequently perturbed by the emission of gaseous and particulate matter from natural as well as anthropogenic sources. While the impact of trace gases on the radiative forcing of the climate is relatively well understood the role of aerosol is far more uncertain. Therefore, the study of the vertical distribution of particulate matter in the atmosphere and its chemical composition contribute valuable information to bridge this gap of knowledge. The chemical composition of aerosol reveals information on properties such as radiative behavior and hygroscopicity and therefore cloud condensation or ice nucleus potential. rnThis thesis focuses on aerosol pollution plumes observed in 2008 during the POLARCAT (Polar Study using Aircraft, Remote Sensing, Surface Measurements and Models, of Climate, Chemistry, Aerosols, and Transport) campaign over Greenland in June/July and CONCERT (Contrail and Cirrus Experiment) campaign over Central and Western Europe in October/November. Measurements were performed with an Aerodyne compact time-of-flight aerosol mass spectrometer (AMS) capable of online size-resolved chemical characterization of non-refractory submicron particles. In addition, the origins of pollution plumes were determined by means of modeling tools. The characterized pollution episodes originated from a large variety of sources and were encountered at distinct altitudes. They included pure natural emissions from two volcanic eruptions in 2008. By the time of detection over Western Europe between 10 and 12 km altitude the plume was about 3 months old and composed to 71 % of particulate sulfate and 21 % of carbonaceous compounds. Also, biomass burning (BB) plumes were observed over Greenland between 4 and 7 km altitude (free troposphere) originating from Canada and East Siberia. The long-range transport took roughly one and two weeks, respectively. The aerosol was composed of 78 % organic matter and 22 % particulate sulfate. Some Canadian and all Siberian BB plumes were mixed with anthropogenic emissions from fossil fuel combustion (FF) in North America and East Asia. It was found that the contribution of particulate sulfate increased with growing influences from anthropogenic activity and Asia reaching up to 37 % after more than two weeks of transport time. The most exclusively anthropogenic emission source probed in the upper troposphere was engine exhaust from commercial aircraft liners over Germany. However, in-situ characterization of this aerosol type during aircraft chasing was not possible. All long-range transport aerosol was found to have an O:C ratio close to or greater than 1 implying that low-volatility oxygenated organic aerosol was present in each case despite the variety of origins and the large range in age from 3 to 100 days. This leads to the conclusion that organic particulate matter reaches a final and uniform state of oxygenation after at least 3 days in the free troposphere. rnExcept for aircraft exhaust all emission sources mentioned above are surface-bound and…
Subjects/Keywords: Aerosol; Massenspektrometrie; Ferntransport; Tropopause; Arktis; aerosol; mass spectrometry; long-range transport; tropopause, Arctic; Physics
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APA ·
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APA (6th Edition):
Schmale, J. Y. (2011). Aircraft-based in-situ aerosol mass spectrometry: Chemical characterization and source identification of submicron particulate matter in the free and upper troposphere and lower stratosphere. (Doctoral Dissertation). Johannes Gutenberg Universität Mainz. Retrieved from http://ubm.opus.hbz-nrw.de/volltexte/2011/2920/
Chicago Manual of Style (16th Edition):
Schmale, Julia Yvonne. “Aircraft-based in-situ aerosol mass spectrometry: Chemical characterization and source identification of submicron particulate matter in the free and upper troposphere and lower stratosphere.” 2011. Doctoral Dissertation, Johannes Gutenberg Universität Mainz. Accessed January 19, 2020.
http://ubm.opus.hbz-nrw.de/volltexte/2011/2920/.
MLA Handbook (7th Edition):
Schmale, Julia Yvonne. “Aircraft-based in-situ aerosol mass spectrometry: Chemical characterization and source identification of submicron particulate matter in the free and upper troposphere and lower stratosphere.” 2011. Web. 19 Jan 2020.
Vancouver:
Schmale JY. Aircraft-based in-situ aerosol mass spectrometry: Chemical characterization and source identification of submicron particulate matter in the free and upper troposphere and lower stratosphere. [Internet] [Doctoral dissertation]. Johannes Gutenberg Universität Mainz; 2011. [cited 2020 Jan 19].
Available from: http://ubm.opus.hbz-nrw.de/volltexte/2011/2920/.
Council of Science Editors:
Schmale JY. Aircraft-based in-situ aerosol mass spectrometry: Chemical characterization and source identification of submicron particulate matter in the free and upper troposphere and lower stratosphere. [Doctoral Dissertation]. Johannes Gutenberg Universität Mainz; 2011. Available from: http://ubm.opus.hbz-nrw.de/volltexte/2011/2920/
Uppsala University
12.
Tetard, Martin.
Diversity and Evolution of Silurian Radiolarians.
Degree: Earth Sciences, 2016, Uppsala University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-281707
► The three approaches followed herein aim to improve our understanding of the paleobiodiversity andevolution of Silurian radiolarians. The first approach provides an exhaustive taxonomic…
(more)
▼ The three approaches followed herein aim to improve our understanding of the paleobiodiversity andevolution of Silurian radiolarians. The first approach provides an exhaustive taxonomic description ofan entirely new radiolarian fauna recovered from two sections of the Cape Phillips Formation in theCanadian Arctic which accumulated in two different paleoenvironmental settings. The samples are datedby graptolites of the Gorstian Lobograptus progenitor Zone. The obtained radiolarian fauna includes 28species, of which 3 are new, and exhibits some of the best preserved Silurian radiolarians known so far.The stratigraphic range of several species was also extended. Then, in a second approach, a CT-Scan3D reconstruction of a specimen of Gyrosphaera cavea was conducted in order to resolve significantinternal structure taxonomic issues. Higher level radiolarian classification is based on internal structures,and classical methods of observing these features repeatedly failed to uncover them. The 3D imagingrevealed a «double» coiling of the specimen that has proved useful in understanding how it grew.Eventually, the third approach is a completion of published taxonomic works in the Silurian with theaim of providing diversity trends through analyses of these radiolarian occurrences. A biotic crisis canbe observed in the Homerian, exhibiting both high extinction and low origination rates, and may belinked with enhanced marine productivity.
De tre projekten som utvecklas här har som mål att fokusera på trender inom evolutionen ochmångfalden av en grupp planktoniska mikroorganismer från Silur (från -443 till -419 Ma). I ett förstaprojekt beskrivs en helt ny fauna radiolarier som hittats i två lokaliteter på de kanadensiska arktiskaöarna, och som har deponerats i olika miljöförhållanden under Silur. Detta material daterades med hjälpav graptoliter, en grupp utdöda svalgsträngsdjur som är mycket användbara för paleozoiska dateringar,till en ålder överensstämmande med Gorstian (-427 till -425 Ma). Denna kanadensisk-arktiska fauna avradiolarier består av 28 arter (varav 3 är nya) och uppvisar några av de bäst bevarade fossilerna frånSilur överhuvudtaget. Den stratigrafiska bredden, vilket är livstiden, av flera arter har också förlängts.Därefter, i ett andra projekt, skapades en 3D-rekonstruktion av ett exemplar av Gyrosphaera cavea medhjälp av mikrotomografi för att observera och beskriva komplexa interna strukturer. Faktum är attklassificeringen av Radiolaria består till stor del av analysen och beskrivningen av dessa internastrukturer och många klassiska metoder som har använts för att observera dem, såsom med hjälp avsvepelektronmikroskop, har misslyckats konsekvent. 3D-avbildningen visade en komplex dubbelrullandeav strukturen i exemplaret, som har visat sig vara användbart i sökandet för att förstå dennesutveckling. Det tredje projektet är slutförandet av en samling av samtliga publicerade arbeten röranderadiolarier från Silur med syfte att klargöra trender inom diversitet för hela perioden genom analyser…
Subjects/Keywords: Radiolaria; Silurian; Canadian Arctic; Paleobiodiversity; Diversity trends; CT-Scan; Radiolaria; silur; diversitetsmönster; kanadensiska Arktis
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APA (6th Edition):
Tetard, M. (2016). Diversity and Evolution of Silurian Radiolarians. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-281707
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Tetard, Martin. “Diversity and Evolution of Silurian Radiolarians.” 2016. Thesis, Uppsala University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-281707.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Tetard, Martin. “Diversity and Evolution of Silurian Radiolarians.” 2016. Web. 19 Jan 2020.
Vancouver:
Tetard M. Diversity and Evolution of Silurian Radiolarians. [Internet] [Thesis]. Uppsala University; 2016. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-281707.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Tetard M. Diversity and Evolution of Silurian Radiolarians. [Thesis]. Uppsala University; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-281707
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
13.
Runius, Viktor.
Internationellt miljö- och energipolitisk samarbete i Arktis : En jämförande fallstudie av Arktiska rådet och Barentsrådet.
Degree: Swedish Defence University, 2012, Swedish Defence University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-2476
► Internationellt samarbete inom olika politikområden är vanligt förekommande i det internationella systemet. Denna studie jämför och analyserar två samarbetsinstitutioner i den arktiska regionen: Arktiska…
(more)
▼ Internationellt samarbete inom olika politikområden är vanligt förekommande i det internationella systemet. Denna studie jämför och analyserar två samarbetsinstitutioner i den arktiska regionen: Arktiska rådet och Barentsrådet. Studiens syfte är att undersöka och analysera vilka åtgärder och riktlinjer dessa institutioner har beslutat om och vidtagit inom det miljö- och energipolitiska samarbetet. Studiens teoretiska anknytning är den forskning som bedrivits kring internationella regimer, det vill säga uppkomsten av institutionaliserat regel- och norm baserat samarbete i det internationella systemet.Studien använder sig av en regimteoretisk analysmodell, internationell regimer, för att analysera institutionernas samarbete och bedöma dess effektivitet och styrka. Den empiriska analysen för studien visar att båda de undersökta fallen uppvisar en viss grad av styrka/effektivitet för det miljöpolitiska samarbetet. Genom redogörelsen och analysen för vilka riktlinjer och beslut som fattats mellan 2000-2011 visar studien att institutionerna uppnår specifika mål och syften samt efterföljer rådande regel- och normsystem. Däremot har inte institutionerna inom sitt ramverk möjlighet att fatta bindande avtal som skall efterföljas. Vidare är det energipolitiska samarbetet mycket begränsat, och båda institutionerna visar främst upp styrka i att skapa normer och reglerför hur miljöaspekten av energifrågor bör se ut.
Subjects/Keywords: Arktis; internationella institutioner; Arktiska rådet; Barentsrådet; internationella regimer; miljö; energi; internationellt samarbete; Political Science; Statsvetenskap
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APA (6th Edition):
Runius, V. (2012). Internationellt miljö- och energipolitisk samarbete i Arktis : En jämförande fallstudie av Arktiska rådet och Barentsrådet. (Thesis). Swedish Defence University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-2476
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Runius, Viktor. “Internationellt miljö- och energipolitisk samarbete i Arktis : En jämförande fallstudie av Arktiska rådet och Barentsrådet.” 2012. Thesis, Swedish Defence University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-2476.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Runius, Viktor. “Internationellt miljö- och energipolitisk samarbete i Arktis : En jämförande fallstudie av Arktiska rådet och Barentsrådet.” 2012. Web. 19 Jan 2020.
Vancouver:
Runius V. Internationellt miljö- och energipolitisk samarbete i Arktis : En jämförande fallstudie av Arktiska rådet och Barentsrådet. [Internet] [Thesis]. Swedish Defence University; 2012. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-2476.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Runius V. Internationellt miljö- och energipolitisk samarbete i Arktis : En jämförande fallstudie av Arktiska rådet och Barentsrådet. [Thesis]. Swedish Defence University; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-2476
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
14.
Wettervik, Alexandra.
Marin diplomati i Arktis : En teorikonsumerande studie av Ryssland och USAs marinstrategi.
Degree: Swedish Defence University, 2019, Swedish Defence University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-8784
► Russia and the US are two great powers who have strategic interest in the Arctic. Research indicates increased military activities in the Arctic and…
(more)
▼ Russia and the US are two great powers who have strategic interest in the Arctic. Research indicates increased military activities in the Arctic and a security dilemma is up to topic in the region. To understand whether military or territorial disputes can become future threats in the Arctic, states' strategic interest in the Arctic needs to be investigated from a war science perspective. To gain an understanding of the states' strategic use of military means in a marine environment, naval diplomacy will be used in the investigation to offer an understanding on how naval forces can utilize different Defence, Coercive, Symbolic or Supportive strategic value. By examining current Russian and US Arctic policy documents, and how the strategic values of naval diplomacy are described, can give an indication of how Russia’s and the US increased military in the Arctic can be understood. The conclusions of the examination involve Russia's marine strategy as for infrastructure for readiness, possibility for all year around presence of naval forces regardless of season and delimiting of other powers ability of interaction in specific areas. The US marine strategy can be understood from aspects of a periodic presence and surveillance purposes, both with collaborative partners and to coerce other powers.
Subjects/Keywords: Arktis; Ryssland; USA; marin diplomati; marin strategi; Other Social Sciences; Annan samhällsvetenskap
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APA (6th Edition):
Wettervik, A. (2019). Marin diplomati i Arktis : En teorikonsumerande studie av Ryssland och USAs marinstrategi. (Thesis). Swedish Defence University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-8784
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wettervik, Alexandra. “Marin diplomati i Arktis : En teorikonsumerande studie av Ryssland och USAs marinstrategi.” 2019. Thesis, Swedish Defence University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-8784.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wettervik, Alexandra. “Marin diplomati i Arktis : En teorikonsumerande studie av Ryssland och USAs marinstrategi.” 2019. Web. 19 Jan 2020.
Vancouver:
Wettervik A. Marin diplomati i Arktis : En teorikonsumerande studie av Ryssland och USAs marinstrategi. [Internet] [Thesis]. Swedish Defence University; 2019. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-8784.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wettervik A. Marin diplomati i Arktis : En teorikonsumerande studie av Ryssland och USAs marinstrategi. [Thesis]. Swedish Defence University; 2019. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-8784
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Stockholm University
15.
Varhelyi, Aron.
Quaternary Arctic foraminiferal isotopes: species reliability and palaeoceanographic application.
Degree: Geological Sciences, 2018, Stockholm University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-158047
► To investigate whether foraminiferal stable isotope (δ18O/δ13C) variations have potential as a chronostratigraphic tool in the Arctic Ocean, this thesis presents new δ18O/δ13C data…
(more)
▼ To investigate whether foraminiferal stable isotope (δ18O/δ13C) variations have potential as a chronostratigraphic tool in the Arctic Ocean, this thesis presents new δ18O/δ13C data from five marine sediment cores. Three of those are downcore analyses (PS92/54-1; TC/PC-03; PC-07) and the remaining two are core top analyses (PC-04; PC-08). Seven species of benthic foraminifera (Cassidulina neoteretis, Cibicides lobatulus, Cibicidoides wuellerstorfi, Oridorsalis tener, Quinqueloculina arctica, Stainforthia concava and Triloculina sp.) and one planktic (Neogloboquadrina pachyderma sinistral) were compared against physical properties data, foraminifera counts and existing age models. The stable isotopic data reveal species-specific niches, resulting from vital effects and habitat preferences. As changes in δ13C mainly are related to palaeoproductivity and ocean/atmosphere gas exchange, and has limited use as a dating tool, the focus has been to create high-resolution downcore δ18O records that can be compared to a global benthic stack. Cibicidoides wuellerstorfi is found to be the most common benthic foraminiferal species in the central Lomonosov Ridge cores (TC/PC-03 and PC-07) whereas C. neoteretis and N. pachyderma are most common at the Yermak Plateau (PS92/54-1). Usefulness of C. wuellerstorfi in the central Lomonosov Ridge cores is limited due to low amplitude changes in δ18O over periods interpreted to cover several Marine Isotope Stages. A similar issue was observed in C. neoteretis δ18O on the Yermak Plateau (PS92/54-1). There, C. neoteretis abundances were low during interglacials. Instead, planktic N. pachyderma δ18O at the Yermak Plateau site (PS92/54-1), more closely than any analysed benthic species, resembled the global benthic δ18O stack. This implies potential of N. pachyderma δ18O as a chronostratigraphic tool in this region of the Arctic. Using N. pachyderma δ18O to correlate distal cores in the Arctic Ocean would demand addressing the issues of regional differences in pelagic δ18O, varying calcification depths and poor preservation. Addressing why the range of variability differs between sites in the same MISs is crucial, before attempting to stack downcore δ18O from the relatively abundant Arctic benthic species C. neoteretis.
Med siktet på att undersöka huruvida variationer i stabila isotopvärden (δ18O/δ13C) hos foraminiferer har potential som dateringsredskap i Arktiska Oceanen, presenteras härmed ny δ18O/δ13C data från fem marina sedimentkärnor. Tre kärnor analyseras på längden (PS92/54-1; LOMROG III TC/PC-03 och PC-07) medan två analyser begränsas till kärnornas toppskikt (LOMROG I PC-04 och PC-08). Resultat från sju olika arter av…
Subjects/Keywords: Palaeoceanography; Arctic; foraminifera; stable isotopes; Paleoceanografi; Arktis; foraminiferer; stabila isotoper; Geosciences, Multidisciplinary; Multidisciplinär geovetenskap
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APA ·
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APA (6th Edition):
Varhelyi, A. (2018). Quaternary Arctic foraminiferal isotopes: species reliability and palaeoceanographic application. (Thesis). Stockholm University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-158047
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Varhelyi, Aron. “Quaternary Arctic foraminiferal isotopes: species reliability and palaeoceanographic application.” 2018. Thesis, Stockholm University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-158047.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Varhelyi, Aron. “Quaternary Arctic foraminiferal isotopes: species reliability and palaeoceanographic application.” 2018. Web. 19 Jan 2020.
Vancouver:
Varhelyi A. Quaternary Arctic foraminiferal isotopes: species reliability and palaeoceanographic application. [Internet] [Thesis]. Stockholm University; 2018. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-158047.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Varhelyi A. Quaternary Arctic foraminiferal isotopes: species reliability and palaeoceanographic application. [Thesis]. Stockholm University; 2018. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-158047
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Oslo
16.
Skaugrud, Håvar.
Effects of increased temperature and bird migrations in the high Arctic.
Degree: 2009, University of Oslo
URL: http://urn.nb.no/URN:NBN:no-23417
;
https://www.duo.uio.no/handle/10852/11681
;
Fulltext
https://www.duo.uio.no/bitstream/handle/10852/11681/1/master.pdf
Subjects/Keywords: zooplankton arktis klimaendringer fuglemigrasjon ferskvannsøkologi; VDP::480
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APA (6th Edition):
Skaugrud, H. (2009). Effects of increased temperature and bird migrations in the high Arctic. (Thesis). University of Oslo. Retrieved from http://urn.nb.no/URN:NBN:no-23417 ; https://www.duo.uio.no/handle/10852/11681 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/11681/1/master.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Skaugrud, Håvar. “Effects of increased temperature and bird migrations in the high Arctic.” 2009. Thesis, University of Oslo. Accessed January 19, 2020.
http://urn.nb.no/URN:NBN:no-23417 ; https://www.duo.uio.no/handle/10852/11681 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/11681/1/master.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Skaugrud, Håvar. “Effects of increased temperature and bird migrations in the high Arctic.” 2009. Web. 19 Jan 2020.
Vancouver:
Skaugrud H. Effects of increased temperature and bird migrations in the high Arctic. [Internet] [Thesis]. University of Oslo; 2009. [cited 2020 Jan 19].
Available from: http://urn.nb.no/URN:NBN:no-23417 ; https://www.duo.uio.no/handle/10852/11681 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/11681/1/master.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Skaugrud H. Effects of increased temperature and bird migrations in the high Arctic. [Thesis]. University of Oslo; 2009. Available from: http://urn.nb.no/URN:NBN:no-23417 ; https://www.duo.uio.no/handle/10852/11681 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/11681/1/master.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Oslo
17.
Alfsnes, Kristian.
Polyploidy in Daphnia : methodology and effects on life history traits.
Degree: 2007, University of Oslo
URL: http://urn.nb.no/URN:NBN:no-15168
;
https://www.duo.uio.no/handle/10852/11776
;
Fulltext
https://www.duo.uio.no/bitstream/handle/10852/11776/1/FerdigxMaster.pdf
► Four arctic, obligate parthenogenetic populations assumed to be polyploid and one temperate, cyclic parthenogenetic, diploid population were used to compare life history traits, growth rates…
(more)
▼ Four arctic, obligate parthenogenetic populations assumed to be polyploid and one temperate, cyclic parthenogenetic, diploid population were used to compare life history traits, growth rates and content of nucleic acids for polyploidy versus diploidy. Cytogenetic studies were done to evaluate the level of ploidy optically or with the aid of optical instruments. A life history experiment was run to identify variations in fitness parameters, fertility, maturation, growth and survival, identifying the adaptive effects and costs of polyploidy. Variations in nucleic acids in polyploids and diploids were accessed by quantifying DNA, RNA and protein. A microsatellite analysis was run to verify the assumed ploidy levels, and species identification was done by sequencing mtDNA and comparing with previously published sequences. The study has a strong focus on assessment of different methods and is in structure affected by this.
Microsatellite analysis positively identified the arctic populations as polyploids, and the temperate as diploid. No assessment of the chromosome numbers was reached using cytogenetic analyses. Statistical difference was noted between the nuclei size in the intestine and connective tissue between the diploid and polyploid populations. Polyploid populations were found to have lower population growth, lower fertility, smaller size and delayed maturation, lower growth rate and lower survival than the diploid population. Ploidy level and quantity of nucleic levels and ratios were not found to be correlated, but RNA and DNA per dry weight and RNA/DNA ratio was found to be weakly correlated with specific growth rate when controlled for the ploidy levels.
Advisors/Committee Members: Dag O. Hessen, Morten M. Laane.
Subjects/Keywords: polyploidi Daphnia arktis livshistorie strategier; VDP::480
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APA (6th Edition):
Alfsnes, K. (2007). Polyploidy in Daphnia : methodology and effects on life history traits. (Thesis). University of Oslo. Retrieved from http://urn.nb.no/URN:NBN:no-15168 ; https://www.duo.uio.no/handle/10852/11776 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/11776/1/FerdigxMaster.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Alfsnes, Kristian. “Polyploidy in Daphnia : methodology and effects on life history traits.” 2007. Thesis, University of Oslo. Accessed January 19, 2020.
http://urn.nb.no/URN:NBN:no-15168 ; https://www.duo.uio.no/handle/10852/11776 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/11776/1/FerdigxMaster.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Alfsnes, Kristian. “Polyploidy in Daphnia : methodology and effects on life history traits.” 2007. Web. 19 Jan 2020.
Vancouver:
Alfsnes K. Polyploidy in Daphnia : methodology and effects on life history traits. [Internet] [Thesis]. University of Oslo; 2007. [cited 2020 Jan 19].
Available from: http://urn.nb.no/URN:NBN:no-15168 ; https://www.duo.uio.no/handle/10852/11776 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/11776/1/FerdigxMaster.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Alfsnes K. Polyploidy in Daphnia : methodology and effects on life history traits. [Thesis]. University of Oslo; 2007. Available from: http://urn.nb.no/URN:NBN:no-15168 ; https://www.duo.uio.no/handle/10852/11776 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/11776/1/FerdigxMaster.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Oslo
18.
Aasen, Inger-Lise.
The hydrographic conditions in the upper Arctic Ocean from 1950 until 2009.
Degree: 2009, University of Oslo
URL: http://urn.nb.no/URN:NBN:no-22140
;
https://www.duo.uio.no/handle/10852/12517
;
Fulltext
https://www.duo.uio.no/bitstream/handle/10852/12517/1/Master_ingerlise.pdf
► We decided to take a fresh new look at the historical hydrographic data from the Environmental Working Group-atlas (EWG) in light of the recent dramatic…
(more)
▼ We decided to take a fresh new look at the historical hydrographic data from the Environmental Working Group-atlas (EWG) in light of the recent dramatic changes, first and foremost to shed light on the cause of the large change in sea ice extent in the 21st century.
Large changes in the hydrographic properties in the Arctic Ocean after the 1990s are evident, especially in depths and regions corresponding to Arctic Atlantic and Arctic Pacific waters. The changes started in the 1990s and continued in the beginning of the 21st century.
The increase in Atlantic temperature in the inflow region is the most evident hydrographic change that has taken place. The Atlantic temperature in the region north of Spitsbergen is 3.5 +/- 0.8 degrees higher in the 21st century compared to the historical data, whereas the changes are less in the Eurasian and Canadian Basins, with temperatures up to 0.5 +\- 0.4 degrees higher than the EWG climatology. The temperature increase is accompanied by salinification in the Atlantic Layer. The salinity north of Spitsbergen is 0.4 +\- 0.2 units higher in the 21st century compared to the historical data. The salinity in the other regions in the Arctic Ocean is higher with 0.2-0.3 +\- 0.1 units.
The Pacific Layer in the Canadian Basin is 0.1-0.6 +\- 0.425 degrees warmer in the 21stcentury compared to the historical data. The Pacific temperature increase in the Canadian Basin is accompanied by a freshening in the 21st century. The Pacific Water is up to 1 +\- 0.125 unit fresher than in previous decades. The temperature increase and salinity decrease led to decreasing densities in the Pacific Layer.
The observations imply that the sea ice cover in the Canadian Basin is closely linked to events of warm Pacific Water. The waters were especially warm in 2007, when a warm pulse that lasted for almost a year coincided with the sea ice extent minimum in 2007. In 2009 there is so far no such event of warm Pacific Water evident, and the outlook for the sea ice so far is not really hinting at an extreme year.
The interface between the cold Halocline Water and the underlying Atlantic Water has been lifted in the 21st century, with up to 60 meters. The ascent started in the 1990s. Traditionally it has not been argued in favour of a close relationship between the sea ice and the Atlantic Layer because of the thick halocline layer, a cold vertically stable layer lying above the warm Atlantic Layer. However the observations show that this layer is thinning, meaning that the Atlantic influence on the sea ice will be more important in the future.
As an additional part of the thesis I have analysed model results from the NCAR and HADLEY models. The models are two of the global climate models used by the Intergovernmental Panel on Climate Changes (IPCC) in their assessment of the status of understanding the climate changes. Specifically, I have compared the NCAR and HADLEY models to observations, to see how well they simulate the changes seen in recent decades, both in ocean potential temperature and sea ice…
Advisors/Committee Members: Cecilie Mauritzen og Jan Erik Weber.
Subjects/Keywords: meteorologi oseanografi arktis issmelting atlantiske havmasser stillehavsvann klimaendringer ITP'er Ice tethered profiles internasjonalt polarår; VDP::450
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Record Details
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APA ·
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MLA ·
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CSE |
Export
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APA (6th Edition):
Aasen, I. (2009). The hydrographic conditions in the upper Arctic Ocean from 1950 until 2009. (Thesis). University of Oslo. Retrieved from http://urn.nb.no/URN:NBN:no-22140 ; https://www.duo.uio.no/handle/10852/12517 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12517/1/Master_ingerlise.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Aasen, Inger-Lise. “The hydrographic conditions in the upper Arctic Ocean from 1950 until 2009.” 2009. Thesis, University of Oslo. Accessed January 19, 2020.
http://urn.nb.no/URN:NBN:no-22140 ; https://www.duo.uio.no/handle/10852/12517 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12517/1/Master_ingerlise.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Aasen, Inger-Lise. “The hydrographic conditions in the upper Arctic Ocean from 1950 until 2009.” 2009. Web. 19 Jan 2020.
Vancouver:
Aasen I. The hydrographic conditions in the upper Arctic Ocean from 1950 until 2009. [Internet] [Thesis]. University of Oslo; 2009. [cited 2020 Jan 19].
Available from: http://urn.nb.no/URN:NBN:no-22140 ; https://www.duo.uio.no/handle/10852/12517 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12517/1/Master_ingerlise.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Aasen I. The hydrographic conditions in the upper Arctic Ocean from 1950 until 2009. [Thesis]. University of Oslo; 2009. Available from: http://urn.nb.no/URN:NBN:no-22140 ; https://www.duo.uio.no/handle/10852/12517 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12517/1/Master_ingerlise.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Johannes Gutenberg Universität Mainz
19.
Klingebiel, Marcus.
Flugzeuggetragene in-situ Messungen zur Eis- und Flüssigphase troposphärischer Wolken.
Degree: 2015, Johannes Gutenberg Universität Mainz
URL: http://ubm.opus.hbz-nrw.de/volltexte/2015/4204/
► Die Mikrophysik in Wolken bestimmt deren Strahlungseigenschaften und beeinflusst somit auch den Strahlungshaushalt des Planeten Erde. Aus diesem Grund werden im Rahmen der vorliegenden Arbeit…
(more)
▼ Die Mikrophysik in Wolken bestimmt deren Strahlungseigenschaften und beeinflusst somit auch den Strahlungshaushalt des Planeten Erde. Aus diesem Grund werden im Rahmen der vorliegenden Arbeit die mikrophysikalischen Charakteristika von Cirrus-Wolken sowie von arktischen Grenzschicht-Wolken behandelt. Die Untersuchung dieser Wolken wurde mithilfe verschiedener Instrumente verwirklicht, welche Partikel in einem Durchmesserbereich von 250nm bis zu 6.4mm vermessen und an Forschungsflugzeugen montiert werden. Ein Instrumentenvergleich bestätigt, dass innerhalb der Bereiche in denen sich die Messungen dieser Instrumente überlappen, die auftretenden Diskrepanzen als sehr gering einzustufen sind. Das vorrangig verwendete Instrument trägt die Bezeichnung CCP (Cloud Combination Probe) und ist eine Kombination aus einem Instrument, das Wolkenpartikel anhand von vorwärts-gerichtetem Streulicht detektiert und einem weiteren, das zweidimensionale Schattenbilder einzelner Wolkenpartikel aufzeichnet. Die Untersuchung von Cirrus-Wolken erfolgt mittels Daten der AIRTOSS-ICE (AIRcraft TOwed Sensor Shuttle - Inhomogeneous Cirrus Experiment) Kampagne, welche im Jahr 2013 über der deutschen Nord- und Ostsee stattfand. Parameter wie Partikeldurchmesser, Partikelanzahlkonzentration, Partikelform, Eiswassergehalt, Wolkenhöhe und Wolkendicke der detektierten Cirrus-Wolken werden bestimmt und im Kontext des aktuellen Wissenstandes diskutiert. Des Weiteren wird eine beprobte Cirrus-Wolke im Detail analysiert, welche den typischen Entwicklungsprozess und die vertikale Struktur dieser Wolkengattung widerspiegelt. Arktische Grenzschicht-Wolken werden anhand von Daten untersucht, die während der VERDI (VERtical Distribution of Ice in Arctic Clouds) Kampagne im Jahr 2012 über der kanadischen Beaufortsee aufgezeichnet wurden. Diese Messkampagne fand im Frühling statt, um die Entwicklung von Eis-Wolken über Mischphasen-Wolken bis hin zu Flüssigwasser-Wolken zu beobachten. Unter bestimmten atmosphärischen Bedingungen tritt innerhalb von Mischphasen-Wolken der sogenannte Wegener-Bergeron-Findeisen Prozess auf, bei dem Flüssigwassertropfen zugunsten von Eispartikeln verdampfen. Es wird bestätigt, dass dieser Prozess anhand von mikrophysikalischen Messungen, insbesondere den daraus resultierenden Größenverteilungen, nachweisbar ist. Darüber hinaus wird eine arktische Flüssigwasser-Wolke im Detail untersucht, welche im Inneren das Auftreten von monomodalen Tröpfchen-Größenverteilungen zeigt. Mit zunehmender Höhe wachsen die Tropfen an und die Maxima der Größenverteilungen verschieben sich hin zu größeren Durchmessern. Dahingegen findet im oberen Übergangsbereich dieser Flüssigwasser-Wolke, zwischen Wolke und freier Atmosphäre, ein Wechsel von monomodalen zu bimodalen Tröpfchen-Größenverteilungen statt. Diese weisen eine Mode 1 mit einem Tropfendurchmesser von 20μm und eine Mode 2 mit einem Tropfendurchmesser von 10μm auf. Das dieses Phänomen eventuell typisch für arktische Flüssigwasser-Wolken ist, zeigen an dem Datensatz durchgeführte Analysen. Mögliche…
Subjects/Keywords: Wolken; Troposphäre; in-situ; Zirren; Arktis; clouds; troposphere; in-situ; cirrus; Arctic; Natural sciences and mathematics
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APA (6th Edition):
Klingebiel, M. (2015). Flugzeuggetragene in-situ Messungen zur Eis- und Flüssigphase troposphärischer Wolken. (Doctoral Dissertation). Johannes Gutenberg Universität Mainz. Retrieved from http://ubm.opus.hbz-nrw.de/volltexte/2015/4204/
Chicago Manual of Style (16th Edition):
Klingebiel, Marcus. “Flugzeuggetragene in-situ Messungen zur Eis- und Flüssigphase troposphärischer Wolken.” 2015. Doctoral Dissertation, Johannes Gutenberg Universität Mainz. Accessed January 19, 2020.
http://ubm.opus.hbz-nrw.de/volltexte/2015/4204/.
MLA Handbook (7th Edition):
Klingebiel, Marcus. “Flugzeuggetragene in-situ Messungen zur Eis- und Flüssigphase troposphärischer Wolken.” 2015. Web. 19 Jan 2020.
Vancouver:
Klingebiel M. Flugzeuggetragene in-situ Messungen zur Eis- und Flüssigphase troposphärischer Wolken. [Internet] [Doctoral dissertation]. Johannes Gutenberg Universität Mainz; 2015. [cited 2020 Jan 19].
Available from: http://ubm.opus.hbz-nrw.de/volltexte/2015/4204/.
Council of Science Editors:
Klingebiel M. Flugzeuggetragene in-situ Messungen zur Eis- und Flüssigphase troposphärischer Wolken. [Doctoral Dissertation]. Johannes Gutenberg Universität Mainz; 2015. Available from: http://ubm.opus.hbz-nrw.de/volltexte/2015/4204/
University of Vienna
20.
Klaus, Vinzent.
Effects of climate change on the Arctic Carbon Cycle.
Degree: 2017, University of Vienna
URL: http://othes.univie.ac.at/47124/
► Aufgrund einer Vielzahl an positiven Feedbackprozessen ist kaum eine Erdregion stärker vom derzeitigen Klimawandel betroffen als die hohen nördlichen Breiten. Die Auswirkungen des Klimawandels auf…
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▼ Aufgrund einer Vielzahl an positiven Feedbackprozessen ist kaum eine Erdregion stärker vom derzeitigen Klimawandel betroffen als die hohen nördlichen Breiten. Die Auswirkungen des Klimawandels auf terrestrische Ökosysteme sind daher besonders drastisch, und werfen gleichzeitig die Frage auf, welche Rolle die Arktis im Kohlenstoffkreislauf zukünftig einnehmen wird; möglich ist sowohl, dass arktische Ökosysteme bei fortschreitendem Klimawandel eine Nettoquelle von Kohlenstoff werden, als auch, dass durch die Begünstigung des Pflanzenwachstums mehr Kohlenstoff gespeichert wird als verlorengeht. Im Zuge dieser Arbeit wird nach einer Vorstellung der Komponenten des Kohlenstoffkreislaufs und diesbezüglicher Besonderheiten der arktischen Tundra erläutert, warum der Klimawandel in hohen Breiten besonders ausgeprägt ist, und welche Folgen auf den arktischen Kohlenstoffkreislauf aus heutiger Perspektive wahrscheinlich sind. Zusätzlich werden die Ergebnisse einer Messkampagne in Spitzbergen, die die Untersuchung der Auswirkungen der atmosphärischen Erwärmung auf die Freisetzung von CO2 aus dem Boden - die sogenannte Bodenatmung - zum Ziel hatte, im Detail vorgestellt und diskutiert. Eine experimentelle Langzeiterwärmung der Landoberfläche bewirkte einen Anstieg der Bodenatmung, was prinzipiell eine positive Rückkopplung zur Klimaerwärmung darstellt. Nicht beobachtet wurden jedoch die Auswirkungen auf die Kohlenstoffaufnahme, sodass eine Modellsimulation des Standorts in Spitzbergen unter verschiedenen Klimaszenarien mit dem Community Land Model (CLM) durchgeführt wurde. Eine künstliche Temperaturerhöhung führte zu einer signifikanten Beschleunigung der meisten Ökosystemprozesse und der Amplifikation sowohl der Kohlenstoffaufnahme von der Atmosphäre, als auch der -abgabe. Eine ebenfalls modellierte Zunahme des Niederschlags hatte hingegen dämpfenden Einfluss auf Primärproduktion und Kohlenstoffabgabe.
Due to multiple amplifying feedbacks, climate change is particularly pronounced in high northern latitudes. Therefore, the consequences on Arctic terrestrial ecosystems are particularly severe, raising the question, which role the Arctic will play in the future global carbon cycle. It is still unclear, if Arctic ecosystems will become a net carbon source under ongoing climate change, or if the stimulation of plant growth will offset carbon loss. After an introduction to the components of the carbon cycle and the control exerted by the climate, the features of Arctic tundra ecosystems are described. Moreover, the current state of research on high latitude climate change is summarised, and the most likely scenario of ecosystem consequences is presented. Furthermore, the results of a measurement campaign in Svalbard, which aimed to examine the effects of atmospheric warming on soil CO2 efflux, will be described and discussed. Experimental long-term warming of the land surface resulted in an increase of soil CO2 efflux, constituting a potential positive feedback to atmospheric warming. Measurements of primary production, which could…
Subjects/Keywords: 38.82 Klimatologie; 42.91 Terrestrische Ökologie; Klimawandel / Kohlenstoffkreislauf / Arktis / Kohlenstoffdioxidemissionen; Climate Change / Carbon Cycle / Arctic / Carbon dioxide emissions
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Klaus, V. (2017). Effects of climate change on the Arctic Carbon Cycle. (Thesis). University of Vienna. Retrieved from http://othes.univie.ac.at/47124/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Klaus, Vinzent. “Effects of climate change on the Arctic Carbon Cycle.” 2017. Thesis, University of Vienna. Accessed January 19, 2020.
http://othes.univie.ac.at/47124/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Klaus, Vinzent. “Effects of climate change on the Arctic Carbon Cycle.” 2017. Web. 19 Jan 2020.
Vancouver:
Klaus V. Effects of climate change on the Arctic Carbon Cycle. [Internet] [Thesis]. University of Vienna; 2017. [cited 2020 Jan 19].
Available from: http://othes.univie.ac.at/47124/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Klaus V. Effects of climate change on the Arctic Carbon Cycle. [Thesis]. University of Vienna; 2017. Available from: http://othes.univie.ac.at/47124/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Vienna
21.
Stichelberger, Sebastian.
A comparison of volume-, temperature- and freshwater transports through arctic gateways.
Degree: 2017, University of Vienna
URL: http://othes.univie.ac.at/48725/
► Der Arktische Ozean ist in vielerlei Hinsicht einzigartig. Das trifft nicht nur auf seine geografische Lage, sondern auch auf die Landmassen die ihn umgeben zu.…
(more)
▼ Der Arktische Ozean ist in vielerlei Hinsicht einzigartig. Das trifft nicht nur auf seine geografische Lage, sondern auch auf die Landmassen die ihn umgeben zu. Ziel dieser Masterarbeit ist die Flüsse von Volumen, Wärme und Süßwasser durch die arktischen Wasserstraßen (Davis Straße, Fram Straße, Barents Sea Opening und Bering Straße) mit Hilfe von Ozean Reanalysen zu bestimmen und mit be-obachtungsbasierten Daten zu vergleichen. Durch diesen Vergleich ist es möglich, die Güte der Ozean Reanalysen im Bereich der Arktis zu erfassen. Das Wissen über diese Güte ist vor allem im Zusammenhang mit der Bestimmung gekoppelter Energie-, Massen-, und Süßwasserhaushalte für die Arktis interessant, unter ande-rem aus Reanalysedaten. Verlässliche Ozean Reanalysen sind daher für eine gute Datengrundlage unerlässlich.
Die Auswertung der Ergebnisse dieser Arbeit lässt allerdings keine klare Aussage über die Performance der Ozean Reanalysen zu. Im Großen und Ganzen können sowohl C-GLORSv5, als auch ORAS5 die Flüsse durch die Wasserstraßen adäquat wiedergeben. Betrachtet man die Wasserstraßen allerdings separat, so fallen doch größere Unterschiede auf. Die Ursachen für diese Unterschiede konnten im Zuge diese Arbeit lokalisiert und zum Teil auch begründet werden.
The Arctic Ocean is unique in many ways, not only due to its geographic location, but also due to the land masses surrounding it. The aim of this master´s thesis is to determine the transport of volume, heat and freshwater through the Arctic Gateways (Davis Strait, Fram Strait, Barents Sea Opening and Bering Strait) out of different ocean reanalyses (Centro Euro-Mediterraneo sui Cambiamenti Climatici Global Ocean Reanalysis System (C-GLORSv5) & European Centre for Medium Range Weather Forecasts Ocean Reanalysis System (ORAS5)) and subsequently compare them to observation-based data from the Arctic Ocean Gateway array (ARCGATE). This comparison makes it possible to assess the quality of the ocean reanalyses in the Arctic domain. The knowledge about this quality is particularly interesting in connection with the determination of coupled energy, mass and freshwater budgets for the Arctic, among others from reanalysis data. Reliable ocean reanalyses are therefore essential for a good database.
The evaluation of the results of this work does not allow a clear statement about the performance of ocean reanalysis. Generally, the reanalyses reflect adequately the regimes in the gateways and agree well with observations. However, if the gateways are treated separately, there are still major differences. The reasons for these differences could be localized in the course of this work and partly explained.
Subjects/Keywords: 38.80 Meteorologie: Allgemeines; 38.90 Ozeanologie, Ozeanographie; Ozean / Arktis / Reanalysen / Volumen / Temperatur / Süßwasser / Transport; Ocean / Arctic / Reanalysis / Volume / Temperature / Freshwater / Transports
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❌
APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Stichelberger, S. (2017). A comparison of volume-, temperature- and freshwater transports through arctic gateways. (Thesis). University of Vienna. Retrieved from http://othes.univie.ac.at/48725/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Stichelberger, Sebastian. “A comparison of volume-, temperature- and freshwater transports through arctic gateways.” 2017. Thesis, University of Vienna. Accessed January 19, 2020.
http://othes.univie.ac.at/48725/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Stichelberger, Sebastian. “A comparison of volume-, temperature- and freshwater transports through arctic gateways.” 2017. Web. 19 Jan 2020.
Vancouver:
Stichelberger S. A comparison of volume-, temperature- and freshwater transports through arctic gateways. [Internet] [Thesis]. University of Vienna; 2017. [cited 2020 Jan 19].
Available from: http://othes.univie.ac.at/48725/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Stichelberger S. A comparison of volume-, temperature- and freshwater transports through arctic gateways. [Thesis]. University of Vienna; 2017. Available from: http://othes.univie.ac.at/48725/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Oslo
22.
Erlandsen, Helene Birkelund.
Sensitivity of the Modeled Arctic Sea-Ice Extent and Thickness to Changes in Various Parametrizations.
Degree: 2010, University of Oslo
URL: http://urn.nb.no/URN:NBN:no-25161
;
https://www.duo.uio.no/handle/10852/12588
;
Fulltext
https://www.duo.uio.no/bitstream/handle/10852/12588/1/Helenes_main_utkast.pdf
► Seven experiments are conducted on a coupled ice-ocean model in order to gain insight in the sensitivity of the modeled Arctic sea-ice extent and thickness…
(more)
▼ Seven experiments are conducted on a coupled ice-ocean model in order to gain insight in the sensitivity of the modeled Arctic sea-ice extent and thickness to crucial changes in the parametrization of the models albedo scheme and thermodynamics. In addition to a control experiment there are three sensitivity experiments which change how the snow/ice-albedo is parametrized. The first replaced the model's albedo scheme with a more basic one, while the remaing two made changes to the existing albedo scheme. Two experiments are conducted which altered the lead closing parameter, ho, affecting the thickness of ice formed in open water. The final sensitivity experiment added an increament of maximum one degree Celsius to the 2 m atmospheric temperature. The ice thickness and extent is most sensitive to the experiment which replaced the model's albedo scheme with a basic one. This led to an increase from the control run in the sea ice extent and thickness of about 22%. Increasing the 2 m atmospheric temperature led to a decrease of 60% in the mean snow thickness. Thus the snow thickness is sensitive to the parametrizations of sensible heat and longwave radiation. The seasonal cycle of the sea ice extent was sensitive to the changes made to the lead closing parameter ho. This parameter can be used to tune the modeled cycle of the sea ice extent to coincide better with the observed sea ice extent cycle.
Advisors/Committee Members: Lars Petter Røed, Jens Debernard.
Subjects/Keywords: parametrisering termodynamikk følsomhet istykkelse isutbredelse snøtykkelse Arktis modellert albedo is-hav modell ERA-40 ORCM MI-IM; VDP::450
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APA ·
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APA (6th Edition):
Erlandsen, H. B. (2010). Sensitivity of the Modeled Arctic Sea-Ice Extent and Thickness to Changes in Various Parametrizations. (Thesis). University of Oslo. Retrieved from http://urn.nb.no/URN:NBN:no-25161 ; https://www.duo.uio.no/handle/10852/12588 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12588/1/Helenes_main_utkast.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Erlandsen, Helene Birkelund. “Sensitivity of the Modeled Arctic Sea-Ice Extent and Thickness to Changes in Various Parametrizations.” 2010. Thesis, University of Oslo. Accessed January 19, 2020.
http://urn.nb.no/URN:NBN:no-25161 ; https://www.duo.uio.no/handle/10852/12588 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12588/1/Helenes_main_utkast.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Erlandsen, Helene Birkelund. “Sensitivity of the Modeled Arctic Sea-Ice Extent and Thickness to Changes in Various Parametrizations.” 2010. Web. 19 Jan 2020.
Vancouver:
Erlandsen HB. Sensitivity of the Modeled Arctic Sea-Ice Extent and Thickness to Changes in Various Parametrizations. [Internet] [Thesis]. University of Oslo; 2010. [cited 2020 Jan 19].
Available from: http://urn.nb.no/URN:NBN:no-25161 ; https://www.duo.uio.no/handle/10852/12588 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12588/1/Helenes_main_utkast.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Erlandsen HB. Sensitivity of the Modeled Arctic Sea-Ice Extent and Thickness to Changes in Various Parametrizations. [Thesis]. University of Oslo; 2010. Available from: http://urn.nb.no/URN:NBN:no-25161 ; https://www.duo.uio.no/handle/10852/12588 ; Fulltext https://www.duo.uio.no/bitstream/handle/10852/12588/1/Helenes_main_utkast.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Linnaeus University
23.
Andersson, Alexander.
Nordostpassagen – ett lokalt hot eller en global möjlighet? : En värdering av miljöpåverkan vid ett ökat användande av Nordostpassagen.
Degree: Kalmar Maritime Academy, 2017, Linnaeus University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-65114
► I takt med att isens utbredning i Arktis minskar ökar potentialen för Nordostpassagen att bli ett alternativ till Suezkanalen. En inledande litteraturstudie identifierar möjliga…
(more)
▼ I takt med att isens utbredning i Arktis minskar ökar potentialen för Nordostpassagen att bli ett alternativ till Suezkanalen. En inledande litteraturstudie identifierar möjliga effekter på miljön vid en kraftig ökning av kommersiell sjöfart längs Nordostpassagen. Resultatet av litteraturstudien diskuteras i intervjuer med tre personer verksamma inom biologi, filosofi och statsvetenskap för att undersöka hur globala förbättringar kan värderas mot lokala skadeverkningar. Litteraturstudien fann att de största miljöeffekterna i Arktis kommer från sjöfartens luftutsläpp, oljespill samt den stressande effekt fartyg har på djurlivet. Globalt sett kan ett ökat användande av Nordostpassagen ge en minskning av sjöfartens koldioxidutsläpp. De intervjuade har delade åsikter om huruvida koldioxidminskningen kan väga upp för de lokala effekterna i Arktis. Vidare önskade de intervjuade se tydlig reglering av eventuell sjöfart i området och att den vinst som genereras av rutten ska bidra till att minska de negativa miljöeffekterna.
As the ice coverage in the Arctic decreses the potential for the Northeast Passage as an alternative to the Suez Canal increases. An initial literature review identifies potential environmental effects of increased shipping along the Northeast Passage. The result of the review is discussed in three separate interviews with a philosopher, a biologist and a political scientists to study how global environmental improvements can be appraised when set against local damages. The literature review revealed air pollution, oil spillages and the stress vessels can cause wildlife to be the most important local factors. The study also found that an increased use of the Northeast Passage may lead to decreased levels of carbon dioxide emissions from shipping globally. The interviewees had different opinions on whether or not the reduction in carbon dioxide emissions outweighs the local environmental impact in the Arctic. Furthermore, the interviewees shared the opinion that shipping in the area needs to be regulated and that the profit made from using the passage should contribute to limiting the harmful environmental effects.
Subjects/Keywords: Northeast passage; Northern Sea Route; Arctic; shipping; Suez Canal; environmental impact; Nordostpassagen; Arktis; miljö; sjöfart; Suezkanalen; miljökonsekvens; Environmental Sciences; Miljövetenskap
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APA ·
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MLA ·
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Export
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APA (6th Edition):
Andersson, A. (2017). Nordostpassagen – ett lokalt hot eller en global möjlighet? : En värdering av miljöpåverkan vid ett ökat användande av Nordostpassagen. (Thesis). Linnaeus University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-65114
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Andersson, Alexander. “Nordostpassagen – ett lokalt hot eller en global möjlighet? : En värdering av miljöpåverkan vid ett ökat användande av Nordostpassagen.” 2017. Thesis, Linnaeus University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-65114.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Andersson, Alexander. “Nordostpassagen – ett lokalt hot eller en global möjlighet? : En värdering av miljöpåverkan vid ett ökat användande av Nordostpassagen.” 2017. Web. 19 Jan 2020.
Vancouver:
Andersson A. Nordostpassagen – ett lokalt hot eller en global möjlighet? : En värdering av miljöpåverkan vid ett ökat användande av Nordostpassagen. [Internet] [Thesis]. Linnaeus University; 2017. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-65114.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Andersson A. Nordostpassagen – ett lokalt hot eller en global möjlighet? : En värdering av miljöpåverkan vid ett ökat användande av Nordostpassagen. [Thesis]. Linnaeus University; 2017. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-65114
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Uppsala University
24.
Petersson, Sofie.
Arktiska molns påverkan på havsisens utbredning och minskning.
Degree: LUVAL, 2017, Uppsala University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326014
► Klimatförändringarna i Arktis sker i en snabbare takt än någon annanstans på jorden. I regionen är det framförallt havsisens utbredning som drabbas, vilken har…
(more)
▼ Klimatförändringarna i Arktis sker i en snabbare takt än någon annanstans på jorden. I regionen är det framförallt havsisens utbredning som drabbas, vilken har minskat med 3.8 % av medelstorleken per decennium under åren 1979-2012. För att klimatmodellerna ska kunna göra så bra beräkningar som möjligt av det framtida klimatet behövs mer observationsdata och bättre förståelse av Arktis klimatsystem. Det arktiska klimatet är komplext, svåråtkomligt för observationer och därför mindre utforskat än klimatsystemen på resten av jorden. Detta gör att klimatmodellerna i nuläget har begränsningar för regionen. De arktiska molnen utgör en osäker faktor i sammanhanget. Molnen är en viktig del i strålningsbalansen och har en stark korrelation med havsisen. De arktiska molnen har en tydlig säsongsvariation med mer molnighet sommartid än under vinterhalvåret. Detta gör att molnen över Arktis till skillnad från i jordens övriga regioner har en totalt sett värmande effekt alla årstider förutom sommaren. Forskarna är även överens om att mer observationsdata och kunskap behövs inom området, vilket skulle förbättra klimatmodellerna och öka kunskapen kring korrelationen mellan molnen och den arktiska havsisen.
In the Arctic the climate changes faster than anywhere on the planet. It is especially the expansion of the sea ice that is affected. Over the years 1979-2012, the annual average extent of the Arctic sea ice has been reduced with 3.8 % per decade. In order for climate models to make the best possible calculations of the future climate, more observation data and better understanding of the Arctic climate system are needed. The Arctic climate is complex, difficult to reach for observations and therefore less explored than the climate systems in the rest of the world. This means that climate models currently have limitations for the region. The Arctic clouds constitute an uncertain factor in this context. Clouds are an important part of the radiation balance and have a strong correlation with the sea ice. The Arctic clouds have a clear seasonal variation with more cloudiness in summer than during the winter. This makes the Arctic clouds, unlike in the rest of the world, to have a total warming effect all seasons except during the summer. The researchers also agree that more observation data and knowledge are needed for the area. It would improve climate models and expand the science about the correlation between the clouds and the Arctic sea ice.
Subjects/Keywords: Arctic; clouds; sea ice; radiation balance; climate changes; Arktis; moln; havsis; strålningsbalans; klimatförändringar; Meteorology and Atmospheric Sciences; Meteorologi och atmosfärforskning
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APA (6th Edition):
Petersson, S. (2017). Arktiska molns påverkan på havsisens utbredning och minskning. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326014
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Petersson, Sofie. “Arktiska molns påverkan på havsisens utbredning och minskning.” 2017. Thesis, Uppsala University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326014.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Petersson, Sofie. “Arktiska molns påverkan på havsisens utbredning och minskning.” 2017. Web. 19 Jan 2020.
Vancouver:
Petersson S. Arktiska molns påverkan på havsisens utbredning och minskning. [Internet] [Thesis]. Uppsala University; 2017. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326014.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Petersson S. Arktiska molns påverkan på havsisens utbredning och minskning. [Thesis]. Uppsala University; 2017. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326014
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Uppsala University
25.
Högberg, Tomas.
Att undvika en arktisk tragedi : Kollektiv förvaltning av fisket i Arktiska oceanens internationella vatten.
Degree: Social and Economic Geography, 2017, Uppsala University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-314691
► In a time of climate change the Arctic region is undergoing rapid changes, and the decreasing sea ice cover is expected to draw increased…
(more)
▼ In a time of climate change the Arctic region is undergoing rapid changes, and the decreasing sea ice cover is expected to draw increased commercial interests as The Arctic Ocean gets more accessible for resource exploitation. The central part of the ocean is common area, where, in theory, overfishing may result in a tragedy of the commons and related fish stocks collapse. This study aims to provide insights into how fishing in the central Arctic Ocean relates to successful collective management, and was conducted using Elinor Ostroms design principles and The Logic of Collective Action as a framework for an ideal type inspired analysis. The results show that conditions for collective fisheries management in the central Arctic Ocean are relatively good, and it’s concluded that collective fisheries management is already embraced and enacted upon by several actors. However, to attain the ideal state of collective management further improvements are required, although there are also multiple options as to how such requirements could be met and there was no indication of why collective management would be unsuccessful.
I samband med ett förändrat klimat så genomgår även den arktiska regionen snabba förändringar, där den minskande havsisen i Arktiska oceanen ger ökad tillgång till naturresurser och förväntas dra allt större kommersiella intressen. Den centrala delen av oceanen är en allmänning, vilken enligt teorin kan överfiskas och resultera i en allmänningens tragedi och relaterade kollapser av fiskbestånd. Denna studie ämnar ge en insikt i hur fisket i centrala Arktiska oceanen förhåller sig till lyckad kollektiv förvaltning, och utfördes genom att låta Elinor Ostroms designprinciper och det kollektiva handlandets logik utgöra ett ramverk för en idealtypsinspirerad analys. Resultaten visar att förutsättningarna för kollektiv förvaltning är relativt goda och att fisket i viss utsträckning redan förvaltas kollektivt. För att uppnå en idealtypisk kollektiv fiskeförvaltning framgår det dock att ytterligare insatser behövs men att det även finns flera alternativ för att möta dessa behov, och det fanns heller ingen antydan av att kollektiv förvaltning skulle misslyckas.
Subjects/Keywords: Arctic; Tragedy of the commons; Fishery; Elinor Ostrom; Collective management; Arktis; Allmänningens tragedi; Fiske; Elinor Ostrom; Kollektiv förvaltning; Human Geography; Kulturgeografi
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APA ·
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APA (6th Edition):
Högberg, T. (2017). Att undvika en arktisk tragedi : Kollektiv förvaltning av fisket i Arktiska oceanens internationella vatten. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-314691
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Högberg, Tomas. “Att undvika en arktisk tragedi : Kollektiv förvaltning av fisket i Arktiska oceanens internationella vatten.” 2017. Thesis, Uppsala University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-314691.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Högberg, Tomas. “Att undvika en arktisk tragedi : Kollektiv förvaltning av fisket i Arktiska oceanens internationella vatten.” 2017. Web. 19 Jan 2020.
Vancouver:
Högberg T. Att undvika en arktisk tragedi : Kollektiv förvaltning av fisket i Arktiska oceanens internationella vatten. [Internet] [Thesis]. Uppsala University; 2017. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-314691.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Högberg T. Att undvika en arktisk tragedi : Kollektiv förvaltning av fisket i Arktiska oceanens internationella vatten. [Thesis]. Uppsala University; 2017. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-314691
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Uppsala University
26.
Scherrer, Kim.
Light, temperature and competition : understanding the causes for climate-driven regime shifts in arctic marine benthos.
Degree: LUVAL, 2015, Uppsala University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-266405
► In the Arctic, shallow sea-floor communities have been documented to shift abruptly from an invertebrate-dominated state to a state with high macroalgal abundance. Climate…
(more)
▼ In the Arctic, shallow sea-floor communities have been documented to shift abruptly from an invertebrate-dominated state to a state with high macroalgal abundance. Climate warming, resulting in increased water temperatures and decreased sea ice cover, could trigger such regime shifts in benthic ecosystems, but the underlying mechanisms are not clear. To gain a better understanding, a mechanistic model of algal growth and interspecific competition was applied in two marine ecosystems in northwestern Svalbard. Unravelling the effects of light and temperature on the model parameters, the current study showed that light is a key factor determining the algal dominance in the two ecosystems. Changes in sea-ice cover, which alters the underwater light regime, is therefore considered the most likely trigger for invertebratealgae regime shifts. A continued prolonging of the ice-free season in the Arctic is likely to occur in the upcoming years, considering the current climatic development. Thus, it is expected that macroalgal cover in shallow rocky-bottom communities will continue to increase, altering species composition and function in seasonally ice-covered arctic ecosystems.
I ekosystem på grunda havsbottnar i Arktis har snabba, kraftiga förändringar i artsammansättning och ekosystemstruktur dokumenterats. Organismsamhällen som tidigare främst utgjorts av ryggradslösa organismer och hårda kalkalger har plötsligt blivit dominerade av olika tångarter. Den globala uppvärmningen medför högre ytvattentemperatur och minskat havsistäcke i Arktis, vilket i sin tur innebär förbättrade ljusförhållanden. Dessa förändringar tros kunna utlösa regimskiften där de ekosystemen övergår från ett stadium dominerat av ryggradslösa djur, till ett stadium dominerat av tång. Mekanismerna bakom sådana regimskiften är emellertid inte kartlagda. Denna studie syftade därför till en bättre förståelse för regimskiften i Arktiska havsbottenekosystem. En mekanistisk modell för algtillväxt och konkurrens tillämpades på två marina organismsamhällen i nordvästra Svalbard, som genomgått sådana regimskiften. Temperatur- och ljusberoendet hos modellens parametrar uppskattades först utifrån kunskap från ett antal tidigare studier. Med hjälp av modellen testades sedan hur fördelningen av alger påverkades av temperatur- och ljusförändringar. Modelleringen indikerade att ljusförhållanden var avgörande för expansionen av tång i de två studerade organismsamhällena på Svalbard, och att ljusförändringar således kan vara en huvudsaklig orsak till regimskiften i Arktis. Med tanke på den nuvarande klimatutvecklingen är en fortsatt förlängning av den isfria säsongen mycket sannolik. Detta kommer troligen innebära en vidare expansion av tång samt förändrad artsammansättning och ekosystemfunktion i grunda, arktiska havsbottenekosystem.
Subjects/Keywords: macroalgae; light; invertebrate; coralline algae; Arctic; benthic; regime shift; climate change; marin ekologi; tång; kalkalg; Arktis; regimskifte; klimatförändring; ljus
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APA ·
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APA (6th Edition):
Scherrer, K. (2015). Light, temperature and competition : understanding the causes for climate-driven regime shifts in arctic marine benthos. (Thesis). Uppsala University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-266405
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Scherrer, Kim. “Light, temperature and competition : understanding the causes for climate-driven regime shifts in arctic marine benthos.” 2015. Thesis, Uppsala University. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-266405.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Scherrer, Kim. “Light, temperature and competition : understanding the causes for climate-driven regime shifts in arctic marine benthos.” 2015. Web. 19 Jan 2020.
Vancouver:
Scherrer K. Light, temperature and competition : understanding the causes for climate-driven regime shifts in arctic marine benthos. [Internet] [Thesis]. Uppsala University; 2015. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-266405.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Scherrer K. Light, temperature and competition : understanding the causes for climate-driven regime shifts in arctic marine benthos. [Thesis]. Uppsala University; 2015. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-266405
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
KTH
27.
Isacsson, Martin.
Snow layer mapping by remote sensing from Unmanned Aerial Vehicles : A mixed method study of sensor applications for research in Arctic and Alpine environments.
Degree: Machine Design (Dept.), 2018, KTH
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226558
► Examensarbetet presenterat i den här rapporten utfördes i syfte att kartlägga vilka sensorer och metoder som skulle kunna vara tillämpbara inom kartläggning av snölager…
(more)
▼ Examensarbetet presenterat i den här rapporten utfördes i syfte att kartlägga vilka sensorer och metoder som skulle kunna vara tillämpbara inom kartläggning av snölager i den arktiska regionen. För att göra den bedömningen har flera olika metoder använts. Intervjuer med experter inom relevanta områden hölls för att göra en initial kartläggning av vilken information som kan tänkas ligga till grund för det efterföljande steget, en kvantitativ regressionsanalys baserad på information insamlad genom systematisk analys av plattformar och sensorer som används i kartläggning baserad på fjärranalys. I denna analys identifierades relevanta korrelationsområden vilka sedan kunde analyseras närmare i en ’State of the art’-sammanställning av relevanta publikationer för att ge en rättvisande insyn i vilka metoder som finns tillgängliga och vad deras respektive styrkor och svagheter är. Slutligen genomfördes en flygning i syfte att praktiskt bedöma vilken kvalitet man kan uppnå i snökartläggning med enkelt tillgängliga konsumentprodukter. Resultaten pekar på att snökartläggning med drönare är ett lovande komplement till vanliga, manuella mätningar. Rekommendationer för vidare studier inkluderar komponentspecifika undersökningar, plattformsdesign och marknadskartläggning.
The thesis presented in this report was conducted to identify which sensors and methods could be applicable in the mapping of snow stocks in the Arctic region. To make that assessment, several different methods have been used. Interviews with experts in relevant areas were held to make an initial survey of what information might be the basis for the subsequent step, a quantitative regression analysis based on information collected through systematic review of the use of platforms and sensors in mapping by remote sensing. In this analysis, relevant correlation areas were identified, which could then be further analyzed in a state of the art compilation of relevant publications to provide a fair understanding of what methods are available and what their respective strengths and weaknesses are. Finally, a flight was carried out with a view to practically assessing what quality can be achieved in snow mapping with readily available consumer products. The results point out that snow mapping exploration with drones is a promising complement to manual measurements. Recommendations for further studies include component-specific surveys, platform design and market mapping.
Subjects/Keywords: UAV; Drones; Snow; Remote Sensing; Sensors; Arctic; Alpine; Mapping; UAV; Drönare; Snö; Fjärranalys; Sensorer; Arktis; Alpin; Kartläggning; Mechanical Engineering; Maskinteknik
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APA ·
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APA (6th Edition):
Isacsson, M. (2018). Snow layer mapping by remote sensing from Unmanned Aerial Vehicles : A mixed method study of sensor applications for research in Arctic and Alpine environments. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226558
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Isacsson, Martin. “Snow layer mapping by remote sensing from Unmanned Aerial Vehicles : A mixed method study of sensor applications for research in Arctic and Alpine environments.” 2018. Thesis, KTH. Accessed January 19, 2020.
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226558.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Isacsson, Martin. “Snow layer mapping by remote sensing from Unmanned Aerial Vehicles : A mixed method study of sensor applications for research in Arctic and Alpine environments.” 2018. Web. 19 Jan 2020.
Vancouver:
Isacsson M. Snow layer mapping by remote sensing from Unmanned Aerial Vehicles : A mixed method study of sensor applications for research in Arctic and Alpine environments. [Internet] [Thesis]. KTH; 2018. [cited 2020 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226558.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Isacsson M. Snow layer mapping by remote sensing from Unmanned Aerial Vehicles : A mixed method study of sensor applications for research in Arctic and Alpine environments. [Thesis]. KTH; 2018. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226558
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Oslo
28.
Hjukse, Aase Vallevik.
Hva forklarer miljøorganisasjonenes saksprioritering i polarområdene?.
Degree: 1991, University of Oslo
URL: http://urn.nb.no/URN:NBN:no-6520
;
https://www.duo.uio.no/handle/10852/14923
► HVA FORKLARER MILJØORGANISASJONENES SAKSPRIORITERING I POLAROMRÅDENE? I oppgaven forsøker jeg å beskrive og å forklare miljøorganisasjonenes engasjement i Arktis og Antarktis. Jeg undersøker hvilke saker…
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▼ HVA FORKLARER MILJØORGANISASJONENES SAKSPRIORITERING I POLAROMRÅDENE?
I oppgaven forsøker jeg å beskrive og å forklare miljøorganisasjonenes engasjement i Arktis og Antarktis. Jeg undersøker hvilke saker de ulike miljøorganisasjonene har prioritert i Arktis og Antarktis, samt hvilke virkemidler de har benyttet. Hovedspørsmålet er likevel: hvilke faktorer forklarer miljøorganisasjonenes saksprioritering? Jeg har valgt to variable som jeg tror kan påvirke saksvalg: graden av økonomiske og strategiske kostnader forbundet med miljøtiltaket og kompetanse i organisasjonene.
Jeg antar at miljøorganisasjonene til en viss grad velger saker der kostnadene forbundet med miljøtiltaket er lave. Dette fordi det sannsynligvis er større mulighet til å få gjennomslag dersom de reguleringer miljøsaken fører med seg koster lite økonomisk eller strategisk. Et premiss bak denne antakelsen er at organisasjonene har behov for å få gjennomslag for saker, dersom organisasjonen ikke har en viss grad av suksess vil tilgangen på ressurser i form av penger eller nye medlemmer minske. Dette utgjør det jeg kaller den pragmatiske hypotesen.
Et alternativ til denne hypotesen er den idealistiske hypotese. Den sier at organisasjonene vil engasjere seg i de sakene som utgjør de største miljøtruslene, uavhengig om det er lett eller vanskelig å få gjennomslag for saken. Dersom organisasjonene særlig engasjerer seg i saker der kostnadene forbundet med mijøtiltakene er lave, vil det kunne bety en støtte til den pragmatiske hypotesen. Dersom organisasjonene særlig konsentrerer seg om saker der kostnadene forbundet med miljøtiltak innebærer det en støtte til den idealistiske hypotesen. Begge typer organisasjonsatferd faller imidlertid inn under det rasjonelle organisasjonsperspektiv. Det er rasjonelt å velge saker man kan få gjennomslag for fordi det gir mulighet for organisasjonsvekst og dermed også evne til fortsatt arbeid for miljøvern. Det er også rasjonelt å jobbe med saker som utgjør de største miljøtruslene, fordi evt. løsning på disse sakene vil kunne gi stor gevinst for naturen.
Spesialiseringshypotesen er en tredje hypotese knyttet til variabelen kompetanse, og en alternativ forklaring på organisasjonenes saksprioritering. Den sier at organisasjonene vil spesialisere seg på et bestemt sett av saker, og prioritere saker organisasjonen har kompetanse på. Dette fordi det trolig er lettere å få gjennomslag for saker dersom man har kompetanse på feltet og også av hensyn til ressursbruk. Organisasjonene har begrensede ressurser og det er derfor hensiktsmessig å konsentrere seg om visse saker. Dersom organisasjonene driver en målstyrt rekruttering av personale for at disse skal jobbe med saker organisasjonen har spesialisert seg på, faller organisasjonsatferden inn under et rasjonelt organisasjonsperspektiv. Dersom organisasjonen ikke har målstyrt rekruttering, men likevel spesialiserer seg mot bestemte saker, faller organisasjonsatferden inn under et naturlig organisasjonsperspektiv.
Det teoretiske utgangspunktet for denne oppgaven bygger dermed i stor…
Subjects/Keywords: a miljøpolitikk miljøvern polarområdene naturvern Arktis Antarktis statsvitenskap DEWEY: miljø:miljøvernbevegelser:miljøvernpolitikk:; VDP::240
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APA ·
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Export
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Manager
APA (6th Edition):
Hjukse, A. V. (1991). Hva forklarer miljøorganisasjonenes saksprioritering i polarområdene?. (Thesis). University of Oslo. Retrieved from http://urn.nb.no/URN:NBN:no-6520 ; https://www.duo.uio.no/handle/10852/14923
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hjukse, Aase Vallevik. “Hva forklarer miljøorganisasjonenes saksprioritering i polarområdene?.” 1991. Thesis, University of Oslo. Accessed January 19, 2020.
http://urn.nb.no/URN:NBN:no-6520 ; https://www.duo.uio.no/handle/10852/14923.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hjukse, Aase Vallevik. “Hva forklarer miljøorganisasjonenes saksprioritering i polarområdene?.” 1991. Web. 19 Jan 2020.
Vancouver:
Hjukse AV. Hva forklarer miljøorganisasjonenes saksprioritering i polarområdene?. [Internet] [Thesis]. University of Oslo; 1991. [cited 2020 Jan 19].
Available from: http://urn.nb.no/URN:NBN:no-6520 ; https://www.duo.uio.no/handle/10852/14923.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hjukse AV. Hva forklarer miljøorganisasjonenes saksprioritering i polarområdene?. [Thesis]. University of Oslo; 1991. Available from: http://urn.nb.no/URN:NBN:no-6520 ; https://www.duo.uio.no/handle/10852/14923
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Johannes Gutenberg Universität Mainz
29.
Handt, Anette von der.
Deciphering petrological signatures of reactive melt stagnation and cooling in the oceanic mantle underneath ultraslow-spreading ridges.
Degree: 2008, Johannes Gutenberg Universität Mainz
URL: http://ubm.opus.hbz-nrw.de/volltexte/2008/1658/
► The global mid-ocean ridge system creates oceanic crust and lithosphere that covers more than two-thirds of the Earth. Basalts are volumetrically the most important rock…
(more)
▼ The global mid-ocean ridge system creates oceanic crust and lithosphere that covers more than two-thirds of the Earth. Basalts are volumetrically the most important rock type sampled at mid-ocean ridges. For this reason, our present understanding of upper mantle dynamics and the chemical evolution of the earth is strongly influenced by the study of mid-ocean ridge basalts (MORB). However, MORB are aggregates of polybarically generated small melt increments that can undergo a variety of physical and chemical processes during their ascent and consequently affect their derivative geochemical composition. Therefore, MORB do not represent “direct” windows to the underlying upper mantle. Abyssal peridotites, upper mantle rocks recovered from the ocean floor, are the residual complement to MORB melting and provide essential information on melt extraction from the upper mantle. In this study, abyssal peridotites are examined to address these overarching questions posed by previous studies of MORB: How are basaltic melts formed in the mantle, how are they extracted from the mantle and what physical and chemical processes control mantle melting?
The number of studies on abyssal peridotites is small compared to those on basalts, in part because seafloor exposures of abyssal peridotites are relatively rare. For this reason, abyssal peridotite characteristics need to be considered in the context of subaerially exposed peridotites associated with ophiolites, orogenic peridotite bodies and basalt-hosted xenoliths. However, orogenic peridotite bodies are mainly associated with passive continental margins, most ophiolites are formed in supra-subduction zone settings, and peridotite xenoliths are often contaminated by their host magma. Therefore, studies of abyssal peridotites are essential to understanding the primary characteristics of the oceanic upper mantle free from the influence of continental rifting, subduction and tectonic emplacement processes.
Nevertheless, numerous processes such as melt stagnation and cooling-induced, inter-mineral exchange can affect residual abyssal peridotite compositions after the cessation of melting. The aim of this study is to address these post-melting modifications of abyssal peridotites from a petrological-geochemical perspective.
The samples in this study were dredged along the axis of the ultraslow-spreading Gakkel Ridge in the Arctic Ocean within the “Sparsely Magmatic Zone”, a 100 km ridge section where only mantle rocks are exposed. During two expeditions (ARK XVII-2 in 2001 and ARK XX-2 in 2004), exceptionally fresh peridotites were recovered. The boulders and cobbles collected cover a range of mantle rock compositions, with most characterized as plagioclase-free spinel peridotites or plagioclase- spinel peridotites.
This thesis investigates melt stagnation and cooling processes in the upper mantle and is divided into two parts. The first part focuses on processes in the stability field of spinel peridotites (>10 kb) such as melt refertilization and cooling related trace element…
Subjects/Keywords: Mittelozeanische Ruecken, Gakkel Ruecken, Arktis, Petrologie, Schmelzmigration, Plagioklasperidotite; mid-ocean ridges, Gakkel Ridge, Arctic Ocean, Petrology, Cooling, Melt migration, Plagioclase peridotites; Earth sciences
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APA (6th Edition):
Handt, A. v. d. (2008). Deciphering petrological signatures of reactive melt stagnation and cooling in the oceanic mantle underneath ultraslow-spreading ridges. (Doctoral Dissertation). Johannes Gutenberg Universität Mainz. Retrieved from http://ubm.opus.hbz-nrw.de/volltexte/2008/1658/
Chicago Manual of Style (16th Edition):
Handt, Anette von der. “Deciphering petrological signatures of reactive melt stagnation and cooling in the oceanic mantle underneath ultraslow-spreading ridges.” 2008. Doctoral Dissertation, Johannes Gutenberg Universität Mainz. Accessed January 19, 2020.
http://ubm.opus.hbz-nrw.de/volltexte/2008/1658/.
MLA Handbook (7th Edition):
Handt, Anette von der. “Deciphering petrological signatures of reactive melt stagnation and cooling in the oceanic mantle underneath ultraslow-spreading ridges.” 2008. Web. 19 Jan 2020.
Vancouver:
Handt Avd. Deciphering petrological signatures of reactive melt stagnation and cooling in the oceanic mantle underneath ultraslow-spreading ridges. [Internet] [Doctoral dissertation]. Johannes Gutenberg Universität Mainz; 2008. [cited 2020 Jan 19].
Available from: http://ubm.opus.hbz-nrw.de/volltexte/2008/1658/.
Council of Science Editors:
Handt Avd. Deciphering petrological signatures of reactive melt stagnation and cooling in the oceanic mantle underneath ultraslow-spreading ridges. [Doctoral Dissertation]. Johannes Gutenberg Universität Mainz; 2008. Available from: http://ubm.opus.hbz-nrw.de/volltexte/2008/1658/
University of Lund
30.
Lindberg, Helena Gonzales.
The constitutive power of maps in the Arctic.
Degree: 2019, University of Lund
URL: http://lup.lub.lu.se/record/a906ced2-fe6a-4a5b-879e-c8c6a315a48c
;
https://portal.research.lu.se/ws/files/70153744/Lindberg_The_constitutive_power_of_maps_in_the_Arctic_2019.pdf
► As maps are widely used, circulated, and recognised, they have consequences for how people view and understand the world. They mediate political meaning-making and frame…
(more)
▼ As maps are widely used, circulated, and
recognised, they have consequences for how people view and
understand the world. They mediate political meaning-making and
frame the conditions for political alternatives to emerge or to be
silenced. In contrast to dominant approaches to the study of the
power of maps that consider their political influence on the basis
of the intentions of the map-maker, this thesis emphasises the
constitutive power of maps and the visual representations prevalent
within them. Moreover, it attempts to further conversations between
the fields of visual politics and critical cartography by
investigating the power of maps in international politics. It does
so by developing three theoretical assumptions about the
constitutive power effects of maps: cartographic truth-claiming,
cartographic naturalisation, and cartographic materialisation. To
illustrate and examine these effects, a two-step analytical
framework for interpreting and deconstructing maps is presented and
applied to the study of three contemporary maps: a world map using
the Web Mercator projection, a map of the changes in Arctic sea
ice, and a set of two maps depicting the oil and gas potentials in
the Arctic. The analysis focuses on the ways in which maps limit
and enable certain conceptualisations of ‘the Arctic’ and politics
within the region. The thesis concludes by contending that maps
perform the political by shaping generally held assumptions about
the ‘reality’ of the Arctic, both in terms of its ‘challenges’ and
‘opportunities’, and therefore serving particular interests as well
as giving rise to ideas and visions about the region’s
future.
Subjects/Keywords: Political Science; Maps; Power; Politics; Representation; Visual politics; Critical cartography; the Arctic; Google Maps; NSIDC; USGS; kartor; makt; politik; representationer; visuell politik; kritisk kartografi; Arktis; Google Maps; NSIDC; USGS
Record Details
Similar Records
Cite
Share »
Record Details
Similar Records
Cite
« Share
❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lindberg, H. G. (2019). The constitutive power of maps in the Arctic. (Doctoral Dissertation). University of Lund. Retrieved from http://lup.lub.lu.se/record/a906ced2-fe6a-4a5b-879e-c8c6a315a48c ; https://portal.research.lu.se/ws/files/70153744/Lindberg_The_constitutive_power_of_maps_in_the_Arctic_2019.pdf
Chicago Manual of Style (16th Edition):
Lindberg, Helena Gonzales. “The constitutive power of maps in the Arctic.” 2019. Doctoral Dissertation, University of Lund. Accessed January 19, 2020.
http://lup.lub.lu.se/record/a906ced2-fe6a-4a5b-879e-c8c6a315a48c ; https://portal.research.lu.se/ws/files/70153744/Lindberg_The_constitutive_power_of_maps_in_the_Arctic_2019.pdf.
MLA Handbook (7th Edition):
Lindberg, Helena Gonzales. “The constitutive power of maps in the Arctic.” 2019. Web. 19 Jan 2020.
Vancouver:
Lindberg HG. The constitutive power of maps in the Arctic. [Internet] [Doctoral dissertation]. University of Lund; 2019. [cited 2020 Jan 19].
Available from: http://lup.lub.lu.se/record/a906ced2-fe6a-4a5b-879e-c8c6a315a48c ; https://portal.research.lu.se/ws/files/70153744/Lindberg_The_constitutive_power_of_maps_in_the_Arctic_2019.pdf.
Council of Science Editors:
Lindberg HG. The constitutive power of maps in the Arctic. [Doctoral Dissertation]. University of Lund; 2019. Available from: http://lup.lub.lu.se/record/a906ced2-fe6a-4a5b-879e-c8c6a315a48c ; https://portal.research.lu.se/ws/files/70153744/Lindberg_The_constitutive_power_of_maps_in_the_Arctic_2019.pdf
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Open Access Theses and Dissertations