subject:(glacier)

University of Cambridge

1. Vale, Amelia. Remote Detection of Surging Glaciers Across High Mountain Asia.

Degree: MPhil, 2019, University of Cambridge

URL: https://www.repository.cam.ac.uk/handle/1810/311650

► High Mountain Asia (HMA) hosts the largest glacier concentration outside of polar regions. This region also represents the second major surge cluster, globally. Despite numerous… (more)

▼ High Mountain Asia (HMA) hosts the largest glacier concentration outside of polar regions. This region also represents the second major surge cluster, globally. Despite numerous sub-regional and individual glacier – scale studies of surging, our understanding of this phenomenon remains largely ambiguous. This study sought to identify and quantify trends in the characteristics and distribution of glacier surging synoptically across HMA using remote sensing techniques. This was with the intention enhancing the state of knowledge of glacier surging in this highly dynamic region and demonstrating the capabilities of remote sensing for this purpose. Terminus positions of surging glaciers identified in this study using satellite imagery were delimited using Google Earth Engine Digitisation Tool (GEEDiT). Subsequently, using terminus change profiles, a 6-part classification scheme was developed to characterise surge phenomenology. Surging variables, including duration, terminus advance distance, terminus advance rate, and surge recurrence intervals were also quantified using terminus change profiles. A statistical assessment was performed on the data to test surging relationships both intra- and extra- sub-regionally. In total, 139 glaciers were identified as surging in HMA between 1987-2019. Of this 139, 15 surged multiple times, and 52 were newly identified as surging in this study. Overall, surging across HMA is heterogeneous in distribution and behaviour. Surge incidence is greater along a northwest-southeast transect, stretching from Pamir through Karakoram, to West Kunlun Shan. In Tian Shan and Himalaya surge incidence was isolated. Pamir glacier surge variables support a dominant hydrologically-regulated surge mechanism, in contrast to Karakoram and West Kunlun Shan glaciers, characterised by long durations, and likely controlled by a thermal switch mechanism. This supports the idea that surging occurs along a spectrum of flow instability, validating earlier surge studies. The synoptic nature of this study provides a degree of representation of the surge phenomenon not attainable by smaller-scale studies. The results highlight the necessity to update the RGI, and the continued need to monitor the surging phenomenon in HMA. It would be possible to automate the methods adopted in this study, facilitating near real-time monitoring of surging across HMA.

Subjects/Keywords: glacier

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vale, A. (2019). Remote Detection of Surging Glaciers Across High Mountain Asia. (Masters Thesis). University of Cambridge. Retrieved from https://www.repository.cam.ac.uk/handle/1810/311650

Chicago Manual of Style (16^th Edition):

Vale, Amelia. “Remote Detection of Surging Glaciers Across High Mountain Asia.” 2019. Masters Thesis, University of Cambridge. Accessed January 18, 2021. https://www.repository.cam.ac.uk/handle/1810/311650.

MLA Handbook (7^th Edition):

Vale, Amelia. “Remote Detection of Surging Glaciers Across High Mountain Asia.” 2019. Web. 18 Jan 2021.

Vancouver:

Vale A. Remote Detection of Surging Glaciers Across High Mountain Asia. [Internet] [Masters thesis]. University of Cambridge; 2019. [cited 2021 Jan 18]. Available from: https://www.repository.cam.ac.uk/handle/1810/311650.

Council of Science Editors:

Vale A. Remote Detection of Surging Glaciers Across High Mountain Asia. [Masters Thesis]. University of Cambridge; 2019. Available from: https://www.repository.cam.ac.uk/handle/1810/311650

University of Maine

2. Walther, Tess Louise. Reconstruction of Koettlitz Glacier, Southern McMurdo Sound, Antarctica, During the Last Glacial Maximum and Termination.

Degree: MS, Earth Sciences, 2020, University of Maine

URL: https://digitalcommons.library.umaine.edu/etd/3318

► Accurate reconstructions of the Antarctic Ice Sheet (AIS) are important for evaluating past, present, and future sea-level change. Insight into future changes of the… (more)

▼ Accurate reconstructions of the Antarctic Ice Sheet (AIS) are important for evaluating past, present, and future sea-level change. Insight into future changes of the AIS and its tolerances to various climate variables can come from investigation of its past behavior. During the last glacial maximum (LGM), ice grounded in the Ross Sea, reaching close to the continental shelf edge. One hypothesis is that this event was caused largely by changing sea level that led to widespread grounding of floating portions of the ice sheet. This grounding buttressed the inflowing East Antarctic outlet glaciers and caused thickening on the lower reaches of these glaciers; interior ice remained the same or even thinned because of reduced accumulation. The Holocene was characterized by rapid recession of marine portions and possible thickening of interior ice and growth of local glaciers in response to accumulation increase. In contrast, an alternate hypothesis is that expansion of grounded Ross Sea ice was due to growth of local glaciers and East Antarctic outlets. These glaciers are thought to have receded to their present positions in the Holocene despite relatively high accumulation. These hypotheses have very different implications for the future of the ice sheet under global warming. Koettlitz Glacier, a large local glacier, flows from the Royal Society Range into McMurdo Sound (78°S, 163°E) and is ideal for testing these two hypotheses. Competing hypotheses as to how this glacier behaved during the LGM range from minor recession to significant expansion. Today, Koettlitz Glacier blocks the mouth of ice-free Pyramid Trough. However, based on surficial mapping, I infer that grounded Ross Sea ice blocked the valley mouth at the LGM. Radiocarbon dates of subfossil lacustrine algae from a lake dammed in Pyramid Trough by the Ross Sea ice date to 11-23 ka, suggesting the ice dam existed throughout that time period. The stratigraphic position and geometry of moraines indicates that Koettlitz Glacier was smaller at the LGM than it is at present. A single radiocarbon age suggests Koettlitz Glacier has advanced within the last 3 ka. Altogether, existing data suggest that Koettlitz Glacier, and by inference other local glaciers in the region, retreated during the LGM and advanced in the Holocene, probably because of fluctuations in accumulation. My work favors the first hypothesis of growth of local glaciers and at least terrestrial portions of the ice sheet during times of high accumulation, which correspond to warm periods in the Antarctic. In contrast, marine-based areas of the ice sheet, such as in the Ross Sea, appear to have advanced during the LGM and retreated in the Holocene, likely in response to changing sea level. This bimodal response of the ice sheet to climate change has implications for future ice-sheet behavior and implies that the future of the ice sheet will depend on the interaction between accumulation-caused thickening and retreat due to marine instabilities. Advisors/Committee Members: Brenda Hall, George Denton, Aaron Putnam.

Subjects/Keywords: Glacier; Antarctica

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Walther, T. L. (2020). Reconstruction of Koettlitz Glacier, Southern McMurdo Sound, Antarctica, During the Last Glacial Maximum and Termination. (Masters Thesis). University of Maine. Retrieved from https://digitalcommons.library.umaine.edu/etd/3318

Chicago Manual of Style (16^th Edition):

Walther, Tess Louise. “Reconstruction of Koettlitz Glacier, Southern McMurdo Sound, Antarctica, During the Last Glacial Maximum and Termination.” 2020. Masters Thesis, University of Maine. Accessed January 18, 2021. https://digitalcommons.library.umaine.edu/etd/3318.

MLA Handbook (7^th Edition):

Walther, Tess Louise. “Reconstruction of Koettlitz Glacier, Southern McMurdo Sound, Antarctica, During the Last Glacial Maximum and Termination.” 2020. Web. 18 Jan 2021.

Vancouver:

Walther TL. Reconstruction of Koettlitz Glacier, Southern McMurdo Sound, Antarctica, During the Last Glacial Maximum and Termination. [Internet] [Masters thesis]. University of Maine; 2020. [cited 2021 Jan 18]. Available from: https://digitalcommons.library.umaine.edu/etd/3318.

Council of Science Editors:

Walther TL. Reconstruction of Koettlitz Glacier, Southern McMurdo Sound, Antarctica, During the Last Glacial Maximum and Termination. [Masters Thesis]. University of Maine; 2020. Available from: https://digitalcommons.library.umaine.edu/etd/3318

Oregon State University

3. Anslow, Faron S. Modeling and dating glacier fluctuations and their relation to Pacific Ocean climate.

Degree: PhD, Geology, 2008, Oregon State University

URL: http://hdl.handle.net/1957/7931

► This thesis presents the results of an investigation into the interactions between the present-day South Cascade Glacier and the former Mauna Kea ice cap at… (more)

▼ This thesis presents the results of an investigation into the interactions between the present-day South Cascade Glacier and the former Mauna Kea ice cap at short (annual to centennial) and long (millennial and multimillennial) time scales. To quantify the response of South Cascade Glacier to atmospheric conditions, a surface energy balance model has been developed. This model has been applied to annual simulations of the mass balance of South Cascade Glacier and is shown to faithfully simulate ablation on all time scales from daily to seasonal. An investigation into the sensitivity of this model to uncertainties in the physical parameters and input data is conducted and provides a comprehensive indication of the uncertainty associated with surface energy balance model estimates of mass balance. These uncertainties are of the order of 10% of the annual mass flux of the glacier. The model is then used in conjunction with a regional model downscaling of climate data and a high resolution (0.5°) gridded observational data set to compute the long-term mass balance history of South Cascade Glacier. Our simulations show that the greatest rate of volume loss in the history of the glacier was in the late 1930s through the mid 1940s. However, present day mass loss is equivalent despite the more climatologically favorable position of the glacier today. Simulated mass balance is compared with Pacific climate indexes and show that the glacier’s relationship to oceanic conditions peaked in the middle part of the 20th century and currently shows a sharp decline. Finally, we present an investigation of the deglacial chronology of Mauna Kea. Our results establish the age of the local last glacial maximum at an age of 22.1 ± 2.1 kyr BP and complete deglaciation was underway by 14.7 ± 1.4 kyr BP. We present strong evidence that retreat after the LGM was followed by a readvance at 16.1 to 16.8 kyr BP. The timing of this readvance is comparable to that of Heinrich event 1 in the North Atlantic. The connection between the North Atlantic and Hawaii climate is discussed in terms of atmospheric modeling results and proxy evidence. Advisors/Committee Members: Clark, Peter (advisor), Hostetler, Steven (committee member).

Subjects/Keywords: Glacier; South Cascade Glacier (Wash.) – Mathematical models

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Anslow, F. S. (2008). Modeling and dating glacier fluctuations and their relation to Pacific Ocean climate. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/7931

Chicago Manual of Style (16^th Edition):

Anslow, Faron S. “Modeling and dating glacier fluctuations and their relation to Pacific Ocean climate.” 2008. Doctoral Dissertation, Oregon State University. Accessed January 18, 2021. http://hdl.handle.net/1957/7931.

MLA Handbook (7^th Edition):

Anslow, Faron S. “Modeling and dating glacier fluctuations and their relation to Pacific Ocean climate.” 2008. Web. 18 Jan 2021.

Vancouver:

Anslow FS. Modeling and dating glacier fluctuations and their relation to Pacific Ocean climate. [Internet] [Doctoral dissertation]. Oregon State University; 2008. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/1957/7931.

Council of Science Editors:

Anslow FS. Modeling and dating glacier fluctuations and their relation to Pacific Ocean climate. [Doctoral Dissertation]. Oregon State University; 2008. Available from: http://hdl.handle.net/1957/7931

University of Ottawa

4. Herdes, Emilie. Evolution of Seasonal Variations in Motion of the Kaskawulsh Glacier, Yukon Territory .

Degree: 2014, University of Ottawa

URL: http://hdl.handle.net/10393/31835

► Differential GPS data from 2007-2014 are used to assess horizontal and vertical velocity variations of the Kaskawulsh Glacier at interannual and intra-annual timescales. These indicate… (more)

Subjects/Keywords: Glacier motion; Subglacial hydrology; Glacier mass balance

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Herdes, E. (2014). Evolution of Seasonal Variations in Motion of the Kaskawulsh Glacier, Yukon Territory . (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/31835

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Herdes, Emilie. “Evolution of Seasonal Variations in Motion of the Kaskawulsh Glacier, Yukon Territory .” 2014. Thesis, University of Ottawa. Accessed January 18, 2021. http://hdl.handle.net/10393/31835.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Herdes, Emilie. “Evolution of Seasonal Variations in Motion of the Kaskawulsh Glacier, Yukon Territory .” 2014. Web. 18 Jan 2021.

Vancouver:

Herdes E. Evolution of Seasonal Variations in Motion of the Kaskawulsh Glacier, Yukon Territory . [Internet] [Thesis]. University of Ottawa; 2014. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10393/31835.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Herdes E. Evolution of Seasonal Variations in Motion of the Kaskawulsh Glacier, Yukon Territory . [Thesis]. University of Ottawa; 2014. Available from: http://hdl.handle.net/10393/31835

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Victoria University of Wellington

5. Kehrl, Laura M. Glacier Speed-Up Events and Subglacial Hydrology on the Lower Franz Josef Glacier, New Zealand.

Degree: 2012, Victoria University of Wellington

URL: http://hdl.handle.net/10063/2436

► The contribution of glacier mass loss to future sea level rise is still poorly constrained (Lemke and others, 2007). One of the remaining unknowns is… (more)

Subjects/Keywords: Glacier dynamics; Subglacial hydrology; Glacier modelling

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kehrl, L. M. (2012). Glacier Speed-Up Events and Subglacial Hydrology on the Lower Franz Josef Glacier, New Zealand. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/2436

Chicago Manual of Style (16^th Edition):

Kehrl, Laura M. “Glacier Speed-Up Events and Subglacial Hydrology on the Lower Franz Josef Glacier, New Zealand.” 2012. Masters Thesis, Victoria University of Wellington. Accessed January 18, 2021. http://hdl.handle.net/10063/2436.

MLA Handbook (7^th Edition):

Kehrl, Laura M. “Glacier Speed-Up Events and Subglacial Hydrology on the Lower Franz Josef Glacier, New Zealand.” 2012. Web. 18 Jan 2021.

Vancouver:

Kehrl LM. Glacier Speed-Up Events and Subglacial Hydrology on the Lower Franz Josef Glacier, New Zealand. [Internet] [Masters thesis]. Victoria University of Wellington; 2012. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10063/2436.

Council of Science Editors:

Kehrl LM. Glacier Speed-Up Events and Subglacial Hydrology on the Lower Franz Josef Glacier, New Zealand. [Masters Thesis]. Victoria University of Wellington; 2012. Available from: http://hdl.handle.net/10063/2436

Texas A&M University

6. Latterman, LaDonna. Analysis of Glacier Recession in the Cordillera Apolobamba, Bolivia 1975-2010.

Degree: MS, Geography, 2012, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10649

► The tropical glaciers in the Bolivian Andes Mountains are small and respond quickly to changes in their climate. They are also a major source of… (more)

▼ The tropical glaciers in the Bolivian Andes Mountains are small and respond quickly to changes in their climate. They are also a major source of freshwater year-round for nearby communities. Monitoring the glacial changes taking place in these glaciers has become increasingly important as they have been retreating over the past century. These glaciers are remote and the terrain treacherous making it potentially dangerous to gather data through field work. For this reason and because of advances in remote sensing technologies the use of satellite images has become the primary means to study these tropical glaciers in detail. This research study focuses on the Cordillera Apolobamba range located on the Peruvian-Bolivian border. It is an example of the methodology applied to assess the area covered by glaciers in this and other regions around the world. Using Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper Plus (ETM+) images from 1985 to 2010, as well as the Glacier Inventory of Bolivia, the glacier extents of the Apolobamba are mapped. From 1975 to 2010 the portion of the range located within Bolivia's border lost 110.76 km² of surface ice lowering its total area from 240.36 km² to 129.60 km2, a 46.08% reduction. From the 1985 to 2010 the entire Apolobamba range lost 102.72 km² of ice lowering its total area from 261.07 km² to 158.35 km², a 39.35% reduction. An analysis of atmospheric conditions was conducted at the 500 hPa level for various climate variables using NCEP/NCAR reanalysis data. Between time period one (1975-1986) and two (1987-1995) the climate variables exhibiting a statistically significant change are air temperature with an increase of .165 degrees C and geopotential height with an increase of 2.967 m. Between time period two and three (1996-2005) the climate variables exhibiting a statistically significant change are freezing level with a 50.017 m increase, precipitation with an 60.604 mm/month decrease and wind velocity with an increase of .373 m/sec. According to the analysis conducted using the Oceanic Nino Index, the monthly sea surface temperatures exhibit no statistically significant change from 1975-2005. Advisors/Committee Members: Klein, Andrew G. (advisor), Filippi, Anthony (committee member), Giardino, John R. (committee member).

Subjects/Keywords: Apolobamba; glacier; Bolivia

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Latterman, L. (2012). Analysis of Glacier Recession in the Cordillera Apolobamba, Bolivia 1975-2010. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10649

Chicago Manual of Style (16^th Edition):

Latterman, LaDonna. “Analysis of Glacier Recession in the Cordillera Apolobamba, Bolivia 1975-2010.” 2012. Masters Thesis, Texas A&M University. Accessed January 18, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10649.

MLA Handbook (7^th Edition):

Latterman, LaDonna. “Analysis of Glacier Recession in the Cordillera Apolobamba, Bolivia 1975-2010.” 2012. Web. 18 Jan 2021.

Vancouver:

Latterman L. Analysis of Glacier Recession in the Cordillera Apolobamba, Bolivia 1975-2010. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10649.

Council of Science Editors:

Latterman L. Analysis of Glacier Recession in the Cordillera Apolobamba, Bolivia 1975-2010. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10649

Victoria University of Wellington

7. Taylor-Offord, Samuel. Seismic and Geodetic Observations of Accelerated Sliding at Haupapa/Tasman Glacier, New Zealand.

Degree: 2017, Victoria University of Wellington

URL: http://hdl.handle.net/10063/6857

► Rain-induced accelerations of Haupapa/Tasman Glacier are accompanied by abundant seismicity. This seismicity reveals some of the glacial processes occurring at times of accelerated glacier sliding… (more)

Subjects/Keywords: Glacier; Rainfall; Seismicity

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Taylor-Offord, S. (2017). Seismic and Geodetic Observations of Accelerated Sliding at Haupapa/Tasman Glacier, New Zealand. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/6857

Chicago Manual of Style (16^th Edition):

Taylor-Offord, Samuel. “Seismic and Geodetic Observations of Accelerated Sliding at Haupapa/Tasman Glacier, New Zealand.” 2017. Masters Thesis, Victoria University of Wellington. Accessed January 18, 2021. http://hdl.handle.net/10063/6857.

MLA Handbook (7^th Edition):

Taylor-Offord, Samuel. “Seismic and Geodetic Observations of Accelerated Sliding at Haupapa/Tasman Glacier, New Zealand.” 2017. Web. 18 Jan 2021.

Vancouver:

Taylor-Offord S. Seismic and Geodetic Observations of Accelerated Sliding at Haupapa/Tasman Glacier, New Zealand. [Internet] [Masters thesis]. Victoria University of Wellington; 2017. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10063/6857.

Council of Science Editors:

Taylor-Offord S. Seismic and Geodetic Observations of Accelerated Sliding at Haupapa/Tasman Glacier, New Zealand. [Masters Thesis]. Victoria University of Wellington; 2017. Available from: http://hdl.handle.net/10063/6857

University of Otago

8. Harvie, Erin Rose. An integrated approach to landform genesis: case study of the Mueller Glacier .

Degree: 2011, University of Otago

URL: http://hdl.handle.net/10523/2025

► An integrated approach to landform genesis which incorporates morphological and sedimentological analysis with geophysical technologies, such as Ground Penetrating Radar (GPR) enables the internal structure… (more)

Subjects/Keywords: Mueller; Glacier; Landform

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Harvie, E. R. (2011). An integrated approach to landform genesis: case study of the Mueller Glacier . (Masters Thesis). University of Otago. Retrieved from http://hdl.handle.net/10523/2025

Chicago Manual of Style (16^th Edition):

Harvie, Erin Rose. “An integrated approach to landform genesis: case study of the Mueller Glacier .” 2011. Masters Thesis, University of Otago. Accessed January 18, 2021. http://hdl.handle.net/10523/2025.

MLA Handbook (7^th Edition):

Harvie, Erin Rose. “An integrated approach to landform genesis: case study of the Mueller Glacier .” 2011. Web. 18 Jan 2021.

Vancouver:

Harvie ER. An integrated approach to landform genesis: case study of the Mueller Glacier . [Internet] [Masters thesis]. University of Otago; 2011. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10523/2025.

Council of Science Editors:

Harvie ER. An integrated approach to landform genesis: case study of the Mueller Glacier . [Masters Thesis]. University of Otago; 2011. Available from: http://hdl.handle.net/10523/2025

University of Dundee

9. Fyffe, Catriona Louise. The hydrology of debris-covered glaciers.

Degree: PhD, 2012, University of Dundee

URL: https://discovery.dundee.ac.uk/en/studentTheses/1ff21418-34ba-4e0a-97ed-69510f3b882c ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578896

► Studies of glacier-hydrology have focused on clean Alpine glaciers, and recently ice sheet outlet glaciers, but there are few studies on debris-covered glaciers. It is… (more)

▼ Studies of glacier-hydrology have focused on clean Alpine glaciers, and recently ice sheet outlet glaciers, but there are few studies on debris-covered glaciers. It is known debris affects ablation rates, and that debris-covered glaciers evolve differently to their debris-free counterparts, but how the debris influences the hydrology is poorly understood. This thesis aims to understand the influence of the debris on the hydrological system and water balance of Miage Glacier, Western Italian Alps. The supraglacial hydrology was studied by modelling ablation using a distributed energy balance melt model, and measuring supraglacial stream discharges; the structure and evolution of the englacial and subglacial network was investigated using dye tracing and water chemistry monitoring; and the proglacial runoff was examined through detailed hydrograph analysis. Glacier velocity measurements were used to investigate the debris’ influence on the glacier dynamics. High ablation rates occurred on clean ice and beneath thin debris on the upper glacier, resulting in large supraglacial streams which led into an efficient drainage system. Glacier velocities had a greater magnitude and variability close to the upper glacier moulins. Thick debris on the lower glacier reduced ablation, and consequently the discharge of supraglacial streams and efficiency of the hydrological network. Despite locally inefficient subglacial drainage, glacier velocities on the lower glacier remained subdued, partly because the debris attenuated water inputs. This attenuation reduced the occurrence of high amplitude diurnal cycles in the proglacial runoff and confined them to particularly warm weather. Lag times from peak air temperature to peak runoff were long relative to comparable debris-free glaciers. Evaporation of rainfall from debris-surfaces was high, and dependant on the debris permeability, suggesting this is an important water balance component. Under climate warming, it is predicted the ablation of Miage Glacier will increase, but this may be negated given an increase in debris cover.

Subjects/Keywords: 550; Glacier-hydrology; Debris-covered glacier; Dye tracing; Miage Glacier; Glacier velocity

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Fyffe, C. L. (2012). The hydrology of debris-covered glaciers. (Doctoral Dissertation). University of Dundee. Retrieved from https://discovery.dundee.ac.uk/en/studentTheses/1ff21418-34ba-4e0a-97ed-69510f3b882c ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578896

Chicago Manual of Style (16^th Edition):

Fyffe, Catriona Louise. “The hydrology of debris-covered glaciers.” 2012. Doctoral Dissertation, University of Dundee. Accessed January 18, 2021. https://discovery.dundee.ac.uk/en/studentTheses/1ff21418-34ba-4e0a-97ed-69510f3b882c ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578896.

MLA Handbook (7^th Edition):

Fyffe, Catriona Louise. “The hydrology of debris-covered glaciers.” 2012. Web. 18 Jan 2021.

Vancouver:

Fyffe CL. The hydrology of debris-covered glaciers. [Internet] [Doctoral dissertation]. University of Dundee; 2012. [cited 2021 Jan 18]. Available from: https://discovery.dundee.ac.uk/en/studentTheses/1ff21418-34ba-4e0a-97ed-69510f3b882c ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578896.

Council of Science Editors:

Fyffe CL. The hydrology of debris-covered glaciers. [Doctoral Dissertation]. University of Dundee; 2012. Available from: https://discovery.dundee.ac.uk/en/studentTheses/1ff21418-34ba-4e0a-97ed-69510f3b882c ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578896

University of Alberta

10. Danielson, Bradley D. Velocity variability of Devon Ice Cap tidewater glaciers.

Degree: PhD, Department of Earth and Atmospheric Sciences, 2014, University of Alberta

URL: https://era.library.ualberta.ca/files/5425kb81j

► Tidewater outlet glaciers drain approximately 47% of the ~105,000 km² covered by ice caps in the Queen Elizabeth Islands of Nunavut, Canada, suggesting that iceberg… (more)

▼ Tidewater outlet glaciers drain approximately 47% of the ~105,000 km² covered by ice caps in the Queen Elizabeth Islands of Nunavut, Canada, suggesting that iceberg discharge may be an important process in the mass balance of these ice caps. Seasonal and inter-annual velocity changes of tidewater glaciers may result in the misestimation of annual or multi-year iceberg calving fluxes, if these are estimated on the basis of short-term ice velocity measurements derived from repeat satellite imagery. The aim of this study is to observe and quantify the variability of tidewater glacier velocity at a range of time scales, and to examine the processes driving these variations, with a focus on the impact of temporal and spatial variations in the delivery of surface meltwater to the glacier bed. High-frequency ice surface velocity measurements were made at four tidewater outlet glaciers of the Devon Ice Cap. Observations over three summers on Belcher Glacier revealed an annually consistent pattern of ice velocities higher than the annual mean during the 50-60 day long melt season. During this fast-flow period, surface meltwater entered the glacier via moulins and the rapid drainage of supra-glacial melt ponds and water filled crevasses. Rapid drainage events coincided with short-duration ice velocity fluctuations. Inter-annual variations in the magnitude of the enhanced velocity in summer and the velocity variability during the fast-flow period were linked to factors which affect the rate and timing of meltwater delivery to the subglacial drainage system, such as variations in spring snowpack thickness and the degree of variability in late summer meltwater production. The effective contribution to the annual displacement resulting from enhanced velocities during the summer melt season was only ~5-8% at the glacier terminus, due to the relatively short duration of the fast-flow period. On the lower 5-8 km of the Belcher Glacier and North Croker Glacier, multi-year changes in annual mean velocity were observed that were not clearly linked to inter-annual variations in the amplitude and/or timing of the seasonal velocity cycle. Because of their flow mechanics, these glaciers may be poised to respond extremely sensitively to even minor long-term changes in driving stress. For such glaciers, it may be extremely difficult to identify any obvious external forcing for relatively large, long-term changes in velocity and rates of iceberg discharge. Overall, the results provide a demonstration of the seasonal bias that may be expected in different zones of the Devon Ice Cap if annual mean glacier velocities are estimated from velocity measurements made over periods less than a full annual cycle.

Subjects/Keywords: Devon Ice Cap; tidewater glacier; glacier velocity; Belcher Glacier; Canadian Arctic

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Danielson, B. D. (2014). Velocity variability of Devon Ice Cap tidewater glaciers. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/5425kb81j

Chicago Manual of Style (16^th Edition):

Danielson, Bradley D. “Velocity variability of Devon Ice Cap tidewater glaciers.” 2014. Doctoral Dissertation, University of Alberta. Accessed January 18, 2021. https://era.library.ualberta.ca/files/5425kb81j.

MLA Handbook (7^th Edition):

Danielson, Bradley D. “Velocity variability of Devon Ice Cap tidewater glaciers.” 2014. Web. 18 Jan 2021.

Vancouver:

Danielson BD. Velocity variability of Devon Ice Cap tidewater glaciers. [Internet] [Doctoral dissertation]. University of Alberta; 2014. [cited 2021 Jan 18]. Available from: https://era.library.ualberta.ca/files/5425kb81j.

Council of Science Editors:

Danielson BD. Velocity variability of Devon Ice Cap tidewater glaciers. [Doctoral Dissertation]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/5425kb81j

The Ohio State University

11. Markus, Julie T. Flow Dynamics of a Soft-Bedded Glacier in Southeast Iceland During Basal Sliding Events.

Degree: MS, Geological Sciences, 2011, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1306260685

► The purpose of this study is to determine how glacier motion and stresses vary spatially and temporally in order to clarify weaknesses in current understanding… (more)

▼ The purpose of this study is to determine how glacier motion and stresses vary spatially and temporally in order to clarify weaknesses in current understanding of soft-bedded glacier motion using data collected from Breiðamerkurjökull, Iceland. The dynamics of ice motion are the most substantial source of uncertainty in current models of future ice sheet mass-loss and resulting sea level rise. Currently, there is a general lack of quantitative understanding of how glacial basal conditions, such as the hydrology and till rheology at the bed, control ice motion. This study focuses on the examination of high spatial and temporal resolution surface velocities retrieved from a 12-station GPS grid in the melt seasons of 2009 and 2010 to evaluate the variation of glacial motion and strain rates over time on Breiðamerkurjökull. The first specific objective is to identify any short-term velocity variations. The second is to use the surface motion data to calculate strain rates and other components of the force budget. The third objective is to explain the variations in velocity and force budget components while taking into account glaciomorphic features of the bed. Results reveal five distinct periods of increased surface motion, termed sliding events, corresponding to periods of rainfall and/or increased temperatures during the 2009 and 2010 melt seasons. Along-flow strain rates show extension upglacier and compression downglacier during sliding events. The force budget solution indicates that upglacier, basal drag decreases substantially during speed-up events and cannot resist the local driving stress, most likely indicating pressurization of a distributed subglacial drainage system. The excess driving stress is then transferred downglacier, through gradients in longitudinal stress, to a more efficiently draining terminus where water pressures are lower and basal drag is sufficient to support the excess stress. The results demonstrate that the till at the terminus accommodates the excess stress, possibly through extensive grain bridging and dilatant hardening or by a relocation of stress to bedrock bumps during sliding events. This buttressing role of the till-bedded margin in resisting increased upglacier sliding, likely over bedrock, is novel and counter to the prevailing view of soft beds, with implications for simulating the evolution of past and current ice masses. Advisors/Committee Members: Howat, Dr. Ian (Advisor).

Subjects/Keywords: glacier dynamics; force budget; glacier sliding events; soft-bedded glacier

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Markus, J. T. (2011). Flow Dynamics of a Soft-Bedded Glacier in Southeast Iceland During Basal Sliding Events. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1306260685

Chicago Manual of Style (16^th Edition):

Markus, Julie T. “Flow Dynamics of a Soft-Bedded Glacier in Southeast Iceland During Basal Sliding Events.” 2011. Masters Thesis, The Ohio State University. Accessed January 18, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306260685.

MLA Handbook (7^th Edition):

Markus, Julie T. “Flow Dynamics of a Soft-Bedded Glacier in Southeast Iceland During Basal Sliding Events.” 2011. Web. 18 Jan 2021.

Vancouver:

Markus JT. Flow Dynamics of a Soft-Bedded Glacier in Southeast Iceland During Basal Sliding Events. [Internet] [Masters thesis]. The Ohio State University; 2011. [cited 2021 Jan 18]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1306260685.

Council of Science Editors:

Markus JT. Flow Dynamics of a Soft-Bedded Glacier in Southeast Iceland During Basal Sliding Events. [Masters Thesis]. The Ohio State University; 2011. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1306260685

Stockholm University

12. Hamré, Moa. Förutsättningar för jökellopp vid Fox Glacier, Nya Zeeland.

Degree: Physical Geography and Quaternary Geology, 2011, Stockholm University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-71989

► A great number of tourists visits each day the Fox Glacier in New Zealand and are subjected todangers such as jökulhlaups. This phenomena can… (more)

Subjects/Keywords: jökulhlaup; Fox Glacier; Franz Josef Glacier; glacier outburst floods; Physical Geography; Naturgeografi

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hamré, M. (2011). Förutsättningar för jökellopp vid Fox Glacier, Nya Zeeland. (Thesis). Stockholm University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-71989

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hamré, Moa. “Förutsättningar för jökellopp vid Fox Glacier, Nya Zeeland.” 2011. Thesis, Stockholm University. Accessed January 18, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-71989.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hamré, Moa. “Förutsättningar för jökellopp vid Fox Glacier, Nya Zeeland.” 2011. Web. 18 Jan 2021.

Vancouver:

Hamré M. Förutsättningar för jökellopp vid Fox Glacier, Nya Zeeland. [Internet] [Thesis]. Stockholm University; 2011. [cited 2021 Jan 18]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-71989.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hamré M. Förutsättningar för jökellopp vid Fox Glacier, Nya Zeeland. [Thesis]. Stockholm University; 2011. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-71989

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

13. Ourada, Quin. Using reanalysis data to characterize Arctic and Sub-Arctic glaciers.

Degree: MS, Geography, 2009, Oregon State University

URL: http://hdl.handle.net/1957/11391

► The net mass balance fluctuations of Arctic and Sub-Arctic glaciers, north of 47.5° North latitude, are described over a 45-year period from 1957 to 2002… (more)

▼ The net mass balance fluctuations of Arctic and Sub-Arctic glaciers, north of 47.5° North latitude, are described over a 45-year period from 1957 to 2002 using two parameters derived from a gridded climatology reanalysis. Variability among 185 measured glaciers was represented according to two main components. The first component represents the temporal variability of the net balance series derived from a statistically defined geographic region. The second component represents the glacier-specific variability in the net balance series (the amplitude of variability). Each component was numerically derived using gridded monthly mean temperature and precipitation data at a 2.5° spatial resolution. These two main components of the net balance series can be determined from simple glacier location data. The temporal variability component was determined using patterns of warm season temperature that were then used to define the statistically correlated regions. The glacier-specific component was approximated along continuum of continentality. Continentality was based on the relative ratio of warm to cool season temperature at the glacier location, which was then normalized and differenced using precipitation magnitude. Ultimately 21 distinct geographic regions containing at least one representative glacier were defined for the first, temporal component. In data-rich regions, such as the Alps and Scandinavia, spatial variability was identified on a finer scale than individual mountain ranges. The temporal evolution of measured net balance series within each region were more closely related to each other than measured mass balance on the scale of mountain ranges. This temporal signal can be considered the most likely temporal signal that would be characteristic of unmeasured glaciers within the spatial extent of the region. This spatial extent defined for each region is specific, and based on similarities in physical climatology as opposed to more vaguely defined regions based on mountain ranges or other geographic features. The, second, glacier specific component of the series was related to net balance standard deviations (58% variance explained), balance amplitude (55% variance explained) and climate sensitivity (56% variance of temperature sensitivity and 52% variance of precipitation sensitivity explained) for measured glaciers. The normalization process resulted in a glacier continuum ranging from -1 to 1 to describe the relative position of a glacier along a continuum or wet-maritime to dry continental. These two pieces of information can be used together to approximate a large component of the net balance series for an unmeasured glacier based on location alone. Representing unmeasured glaciers in this manner is, by no means, a substitute for actual field measurements or complex and highly parameterized mass balance models. This approach is also limited in accuracy by the spatial resolution of the gridded climatologies used, which at this time are still quite coarse, 2.5°. However,… Advisors/Committee Members: Nolin, Anne W. (advisor), Clark, Peter U. (committee member).

Subjects/Keywords: Glacier; Glaciers – Arctic regions

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ourada, Q. (2009). Using reanalysis data to characterize Arctic and Sub-Arctic glaciers. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/11391

Chicago Manual of Style (16^th Edition):

Ourada, Quin. “Using reanalysis data to characterize Arctic and Sub-Arctic glaciers.” 2009. Masters Thesis, Oregon State University. Accessed January 18, 2021. http://hdl.handle.net/1957/11391.

MLA Handbook (7^th Edition):

Ourada, Quin. “Using reanalysis data to characterize Arctic and Sub-Arctic glaciers.” 2009. Web. 18 Jan 2021.

Vancouver:

Ourada Q. Using reanalysis data to characterize Arctic and Sub-Arctic glaciers. [Internet] [Masters thesis]. Oregon State University; 2009. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/1957/11391.

Council of Science Editors:

Ourada Q. Using reanalysis data to characterize Arctic and Sub-Arctic glaciers. [Masters Thesis]. Oregon State University; 2009. Available from: http://hdl.handle.net/1957/11391

University of Alberta

14. Hahn, Aria S. Soil Microbial Communities in Early Ecosystems.

Degree: MS, Department of Renewable Resources, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/kd17ct302

► Microbial communities are responsible for biogeochemical processes in soils such as nutrient cycling and organic matter formation, which are essential to the establishment of vegetation… (more)

Subjects/Keywords: Reclamation; Microbiology; Glacier; Soil; Succession

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hahn, A. S. (2011). Soil Microbial Communities in Early Ecosystems. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/kd17ct302

Chicago Manual of Style (16^th Edition):

Hahn, Aria S. “Soil Microbial Communities in Early Ecosystems.” 2011. Masters Thesis, University of Alberta. Accessed January 18, 2021. https://era.library.ualberta.ca/files/kd17ct302.

MLA Handbook (7^th Edition):

Hahn, Aria S. “Soil Microbial Communities in Early Ecosystems.” 2011. Web. 18 Jan 2021.

Vancouver:

Hahn AS. Soil Microbial Communities in Early Ecosystems. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2021 Jan 18]. Available from: https://era.library.ualberta.ca/files/kd17ct302.

Council of Science Editors:

Hahn AS. Soil Microbial Communities in Early Ecosystems. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/kd17ct302

University of Alberta

15. Duncan, Angus. Spatial and temporal variations of the surface energy balance and ablation on the Belcher Glacier, Devon Island, Nunavut, Canada.

Degree: MS, Department of Earth and Atmospheric Sciences, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/vd66w0378

► In the summer of 2008 (June 2nd – September 19th) detailed measurements of meteorological conditions and glacier surface properties were conducted in the Belcher Glacier… (more)

▼ In the summer of 2008 (June 2nd – September 19th) detailed measurements of meteorological conditions and glacier surface properties were conducted in the Belcher Glacier catchment (718 km2), Devon Island Ice Cap, Nunavut, Canada. These measurements were used to force and validate a distributed surface energy balance and sub-surface snow model capable of calculating surface ablation rates and meltwater runoff. This study represents a contribution to the International Polar Year (IPY) Glaciodyn project, whose overall aim is to examine the role of hydrology and ice dynamics in the response of marine-terminating glaciers in the Arctic to climate change. Spatially-averaged total water equivalent (w.e.) ablation was 677 mm w.e., and total predicted runoff during the 2008 summer was 3.9 x 108 m3. Net radiation (87%) was the main source of energy over the study period, followed by the sensible heat flux (13%). Net longwave radiation and the latent heat flux represented an overall energy loss from the surface. Modelled melt season duration lasted from June 17th – August 15th, and the majority of ablation occurred in two main periods, from June 26th – July 18th, and from July 27th to August 14th. Snowfall and lower air temperatures limited ablation between these dates and after August 15th. Ice exposure at elevations below 1000 m occurred by July 1st. Periods of high ablation rates were associated with positive air temperatures and high net shortwave radiation receipts, and with near surface air temperature gradients that were shallow or inverted (i.e. higher air temperatures at higher elevations). Periods of minimum ablation rates occurred when net shortwave radiation receipts were reduced (e.g. following summer snowfall) and when air temperatures were negative. The largest changes in both the net surface energy balance and ablation rates were linked to changes in surface albedo associated with (i) snowpack removal and ice exposure, and (ii) summer snowfall events. Modelled time series of runoff from individual sub-catchments within the Belcher catchment will be used to force a coupled hydrology and ice flow dynamics model of the Belcher Glacier that will be used to investigate the dynamic response of tidewater-terminating glaciers to surface hydrological forcing.

Subjects/Keywords: Arctic; Surface energy balance; Glacier

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Duncan, A. (2011). Spatial and temporal variations of the surface energy balance and ablation on the Belcher Glacier, Devon Island, Nunavut, Canada. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/vd66w0378

Chicago Manual of Style (16^th Edition):

Duncan, Angus. “Spatial and temporal variations of the surface energy balance and ablation on the Belcher Glacier, Devon Island, Nunavut, Canada.” 2011. Masters Thesis, University of Alberta. Accessed January 18, 2021. https://era.library.ualberta.ca/files/vd66w0378.

MLA Handbook (7^th Edition):

Duncan, Angus. “Spatial and temporal variations of the surface energy balance and ablation on the Belcher Glacier, Devon Island, Nunavut, Canada.” 2011. Web. 18 Jan 2021.

Vancouver:

Duncan A. Spatial and temporal variations of the surface energy balance and ablation on the Belcher Glacier, Devon Island, Nunavut, Canada. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2021 Jan 18]. Available from: https://era.library.ualberta.ca/files/vd66w0378.

Council of Science Editors:

Duncan A. Spatial and temporal variations of the surface energy balance and ablation on the Belcher Glacier, Devon Island, Nunavut, Canada. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/vd66w0378

University of Alberta

16. Baker, Matthew G. The role of microbial extracellular polymeric substances in psychrotolerance and geochemistry of subglacial environments.

Degree: MS, Department of Biological Sciences, 2012, University of Alberta

URL: https://era.library.ualberta.ca/files/hm50ts14h

► Extracellular polymeric substances (EPS) were investigated to determine their potential role in microbial cryotolerance in the subglacial environment. The cell surface chemistry of Hymenobacter aerophilus… (more)

Subjects/Keywords: EPS; Glacier; biogeochemistry; psychrotolerance

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Baker, M. G. (2012). The role of microbial extracellular polymeric substances in psychrotolerance and geochemistry of subglacial environments. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/hm50ts14h

Chicago Manual of Style (16^th Edition):

Baker, Matthew G. “The role of microbial extracellular polymeric substances in psychrotolerance and geochemistry of subglacial environments.” 2012. Masters Thesis, University of Alberta. Accessed January 18, 2021. https://era.library.ualberta.ca/files/hm50ts14h.

MLA Handbook (7^th Edition):

Baker, Matthew G. “The role of microbial extracellular polymeric substances in psychrotolerance and geochemistry of subglacial environments.” 2012. Web. 18 Jan 2021.

Vancouver:

Baker MG. The role of microbial extracellular polymeric substances in psychrotolerance and geochemistry of subglacial environments. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2021 Jan 18]. Available from: https://era.library.ualberta.ca/files/hm50ts14h.

Council of Science Editors:

Baker MG. The role of microbial extracellular polymeric substances in psychrotolerance and geochemistry of subglacial environments. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/hm50ts14h

Victoria University of Wellington

17. Purdie, Heather. Controls on Spatial and Temporal Variation in Snow Accumulation on Glaciers in the Southern Alps, New Zealand.

Degree: 2011, Victoria University of Wellington

URL: http://hdl.handle.net/10063/1557

► Mountain glaciers are already responding to climatic warming, and are expected to make a substantial contribution to sea-level rise in the coming decades. The aim… (more)

▼ Mountain glaciers are already responding to climatic warming, and are expected to make a substantial contribution to sea-level rise in the coming decades. The aim of this investigation in the New Zealand Southern Alps was to improve our understanding of snow accumulation variability on mid-latitude maritime glaciers, in order to allow for better estimation of future glacier mass balance. The specific aim was to investigate snow accumulation processes at a range of spatial and temporal scales, focussing on synoptic-scale atmospheric circulation influences, moisture sources for snow accumulation and local-scale dependencies of snow accumulation in relation to topography. A range of methods were utilised including direct measurement, snow and ice core analysis, statistical analysis and modelling. Snow accumulation in the Southern Alps was found to be derived predominantly from the Tasman Sea, and deposited during low pressure troughs and fronts. Although precipitation increased with elevation, wind processes redistributed this mass. On a ~monthly timescale this redistribution caused an unexpected result, namely that wind deflation of snow on Franz Josef Glacier countered the effects of greater accumulation, and total accumulation was similar at both Franz Josef and Tasman Glaciers over this period. These processes make it challenging to simulate snow accumulation patterns by simply extrapolating snowfall over an orographic barrier from lowland climate station data. On an inter-annual basis, temperature, especially during the ablation season, had most influence on net accumulation, and warm summers served to homogenise winter variability. Consequently, atmospheric circulation patterns that affect summer temperature, for example the El Niño Southern Oscillation (ENSO) and the Southern Annular Mode (SAM) also influence inter-annual variability in net accumulation. Together, these results highlight the dependence of maritime glaciers in the New Zealand Southern Alps on the prevailing westerly circulation. Although some uncertainty surrounds how global warming will affect atmospheric circulation and synoptic weather patterns, the results of this research indicate that New Zealand glaciers can be expected to lose significant mass in the coming decades if the current positive trend in the SAM continues, and if La Niña events (positive ENSO) become more frequent. Advisors/Committee Members: Mackintosh, Andrew, Lawson, Wendy.

Subjects/Keywords: Glacier; Mass balance; New Zealand

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Purdie, H. (2011). Controls on Spatial and Temporal Variation in Snow Accumulation on Glaciers in the Southern Alps, New Zealand. (Doctoral Dissertation). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/1557

Chicago Manual of Style (16^th Edition):

Purdie, Heather. “Controls on Spatial and Temporal Variation in Snow Accumulation on Glaciers in the Southern Alps, New Zealand.” 2011. Doctoral Dissertation, Victoria University of Wellington. Accessed January 18, 2021. http://hdl.handle.net/10063/1557.

MLA Handbook (7^th Edition):

Purdie, Heather. “Controls on Spatial and Temporal Variation in Snow Accumulation on Glaciers in the Southern Alps, New Zealand.” 2011. Web. 18 Jan 2021.

Vancouver:

Purdie H. Controls on Spatial and Temporal Variation in Snow Accumulation on Glaciers in the Southern Alps, New Zealand. [Internet] [Doctoral dissertation]. Victoria University of Wellington; 2011. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10063/1557.

Council of Science Editors:

Purdie H. Controls on Spatial and Temporal Variation in Snow Accumulation on Glaciers in the Southern Alps, New Zealand. [Doctoral Dissertation]. Victoria University of Wellington; 2011. Available from: http://hdl.handle.net/10063/1557

University of Otago

18. Vivero, Sebastián. Recent Ice Wastage on the Tasman Glacier, Southern Alps, New Zealand, Obtained from Geodetic Elevation Changes .

Degree: 2013, University of Otago

URL: http://hdl.handle.net/10523/4376

► The Tasman Glacier is New Zealand’s largest body of ice comprising several tributary glaciers. Since the early 1990s it has undergone a rapid frontal retreat… (more)

Subjects/Keywords: Tasman Glacier; Photogrammetry; Volume Change

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vivero, S. (2013). Recent Ice Wastage on the Tasman Glacier, Southern Alps, New Zealand, Obtained from Geodetic Elevation Changes . (Masters Thesis). University of Otago. Retrieved from http://hdl.handle.net/10523/4376

Chicago Manual of Style (16^th Edition):

Vivero, Sebastián. “Recent Ice Wastage on the Tasman Glacier, Southern Alps, New Zealand, Obtained from Geodetic Elevation Changes .” 2013. Masters Thesis, University of Otago. Accessed January 18, 2021. http://hdl.handle.net/10523/4376.

MLA Handbook (7^th Edition):

Vivero, Sebastián. “Recent Ice Wastage on the Tasman Glacier, Southern Alps, New Zealand, Obtained from Geodetic Elevation Changes .” 2013. Web. 18 Jan 2021.

Vancouver:

Vivero S. Recent Ice Wastage on the Tasman Glacier, Southern Alps, New Zealand, Obtained from Geodetic Elevation Changes . [Internet] [Masters thesis]. University of Otago; 2013. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10523/4376.

Council of Science Editors:

Vivero S. Recent Ice Wastage on the Tasman Glacier, Southern Alps, New Zealand, Obtained from Geodetic Elevation Changes . [Masters Thesis]. University of Otago; 2013. Available from: http://hdl.handle.net/10523/4376

University of Ottawa

19. Dalton, Abigail. Iceberg Production and Characteristics at the Termini of Tidewater Glaciers around the Prince of Wales Icefield, Ellesmere Island .

Degree: 2017, University of Ottawa

URL: http://hdl.handle.net/10393/36992

► Since the 1960s, warming air and sea surface temperatures have led to decreasing sea ice extent and longer periods of open water in the Canadian… (more)

Subjects/Keywords: Icebergs; Glacier Dynamics; Remote Sensing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dalton, A. (2017). Iceberg Production and Characteristics at the Termini of Tidewater Glaciers around the Prince of Wales Icefield, Ellesmere Island . (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/36992

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dalton, Abigail. “Iceberg Production and Characteristics at the Termini of Tidewater Glaciers around the Prince of Wales Icefield, Ellesmere Island .” 2017. Thesis, University of Ottawa. Accessed January 18, 2021. http://hdl.handle.net/10393/36992.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dalton, Abigail. “Iceberg Production and Characteristics at the Termini of Tidewater Glaciers around the Prince of Wales Icefield, Ellesmere Island .” 2017. Web. 18 Jan 2021.

Vancouver:

Dalton A. Iceberg Production and Characteristics at the Termini of Tidewater Glaciers around the Prince of Wales Icefield, Ellesmere Island . [Internet] [Thesis]. University of Ottawa; 2017. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10393/36992.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dalton A. Iceberg Production and Characteristics at the Termini of Tidewater Glaciers around the Prince of Wales Icefield, Ellesmere Island . [Thesis]. University of Ottawa; 2017. Available from: http://hdl.handle.net/10393/36992

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Illinois – Urbana-Champaign

20. Kelly, Marissa. Influence of structural variability on glacially-eroded steps, Uinta Mountains, UT.

Degree: MS, 0336, 2012, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/31096

► Several valleys on the southern slopes of the western Uinta Mountains exhibit stepped erosional profiles. These profiles consist of tall, steep, cliffs (~10m high) separated… (more)

Subjects/Keywords: Glacier; Geology; Geomorphology; Erosion; Bedding

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kelly, M. (2012). Influence of structural variability on glacially-eroded steps, Uinta Mountains, UT. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/31096

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kelly, Marissa. “Influence of structural variability on glacially-eroded steps, Uinta Mountains, UT.” 2012. Thesis, University of Illinois – Urbana-Champaign. Accessed January 18, 2021. http://hdl.handle.net/2142/31096.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kelly, Marissa. “Influence of structural variability on glacially-eroded steps, Uinta Mountains, UT.” 2012. Web. 18 Jan 2021.

Vancouver:

Kelly M. Influence of structural variability on glacially-eroded steps, Uinta Mountains, UT. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2012. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/2142/31096.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kelly M. Influence of structural variability on glacially-eroded steps, Uinta Mountains, UT. [Thesis]. University of Illinois – Urbana-Champaign; 2012. Available from: http://hdl.handle.net/2142/31096

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of New Mexico

21. Kinworthy, Bryan. New Mexico Rock Glacier Inventory: Analysis of Geomorphology and Paleogeography.

Degree: Geography, 2016, University of New Mexico

URL: http://hdl.handle.net/1928/31673

► Rock glaciers are large masses of rock debris and interstitial ice that flow or have flowed downhill by permafrost creep. The formation and distribution of… (more)

Subjects/Keywords: rock glacier; permafrost; periglacial; paleoclimate

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kinworthy, B. (2016). New Mexico Rock Glacier Inventory: Analysis of Geomorphology and Paleogeography. (Masters Thesis). University of New Mexico. Retrieved from http://hdl.handle.net/1928/31673

Chicago Manual of Style (16^th Edition):

Kinworthy, Bryan. “New Mexico Rock Glacier Inventory: Analysis of Geomorphology and Paleogeography.” 2016. Masters Thesis, University of New Mexico. Accessed January 18, 2021. http://hdl.handle.net/1928/31673.

MLA Handbook (7^th Edition):

Kinworthy, Bryan. “New Mexico Rock Glacier Inventory: Analysis of Geomorphology and Paleogeography.” 2016. Web. 18 Jan 2021.

Vancouver:

Kinworthy B. New Mexico Rock Glacier Inventory: Analysis of Geomorphology and Paleogeography. [Internet] [Masters thesis]. University of New Mexico; 2016. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/1928/31673.

Council of Science Editors:

Kinworthy B. New Mexico Rock Glacier Inventory: Analysis of Geomorphology and Paleogeography. [Masters Thesis]. University of New Mexico; 2016. Available from: http://hdl.handle.net/1928/31673

22. Appleby, John Richard. Structural glaciology, dynamics and evolution of Te Moeka o Tuawe Fox Glacier, New Zealand : thesis submitted in partial fulfilment of the degree of Doctor of Philosophy in Geography at Massey University, Palmerston North, New Zealand .

Degree: 2012, Massey University

URL: http://hdl.handle.net/10179/4167

► The aim of this thesis is to investigate and identify relationships between glacier structure, dynamics and debris transport at Te Moeka o Tuawe Fox Glacier;… (more)

▼ The aim of this thesis is to investigate and identify relationships between glacier structure, dynamics and debris transport at Te Moeka o Tuawe Fox Glacier; a temperate, maritime glacier in South Westland, New Zealand. Structural analyses of steep, exceptionally dynamic alpine glaciers that respond rapidly to changes in mass balance are rare. In particular, an appreciable dearth of New Zealand-focussed investigations into structural glaciology and glacial dynamics is found in the literature. Structural glaciology of Fox Glacier is determined by field observations, analysis of remotely sensed images, and ground-penetrating radar (GPR). Dynamics are investigated and quantified by the measurement of ice flow velocity and surface deformation. Debris transport processes occurring at Fox Glacier are investigated using field and laboratory analysis of grain size and clast morphology. The structures identified on Fox Glacier during this study display similar patterns to structural features of temperate valley glaciers reported in other studies. Strain-rates measured on the surface of Fox Glacier are higher than those reported for both cold-based glaciers and warm-based alpine-style glaciers in the European Alps. However, strain rates are lower than values typically reported for surging glaciers during surge phases. Unequivocal relationships between measured strain-rates and structures are not evident from this research. This may be because many structures are undergoing passive transport down-glacier, and do not reflect the prevailing local stress regime. Or, some structures, such as crevasse traces, may be close to crevassing, without crevasses actually forming. Results and findings from this study are a useful addition to the accumulating body of work that has emerged over the last decade on the South Westland glaciers. The vast majority of that research has typically focused on glacier fluctuations in response to climate, or has attempted to link late-glacial moraine-forming events to glacier dynamics. In contrast, the present study has attempted for the first time in New Zealand, to characterise and explain the spatial pattern of structures within a valley glacier in its entirety from the névé to the snout.

Subjects/Keywords: Fox glacier; Glaciology; Glaciers

11 more images…

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Appleby, J. R. (2012). Structural glaciology, dynamics and evolution of Te Moeka o Tuawe Fox Glacier, New Zealand : thesis submitted in partial fulfilment of the degree of Doctor of Philosophy in Geography at Massey University, Palmerston North, New Zealand . (Thesis). Massey University. Retrieved from http://hdl.handle.net/10179/4167

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Appleby, John Richard. “Structural glaciology, dynamics and evolution of Te Moeka o Tuawe Fox Glacier, New Zealand : thesis submitted in partial fulfilment of the degree of Doctor of Philosophy in Geography at Massey University, Palmerston North, New Zealand .” 2012. Thesis, Massey University. Accessed January 18, 2021. http://hdl.handle.net/10179/4167.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Appleby, John Richard. “Structural glaciology, dynamics and evolution of Te Moeka o Tuawe Fox Glacier, New Zealand : thesis submitted in partial fulfilment of the degree of Doctor of Philosophy in Geography at Massey University, Palmerston North, New Zealand .” 2012. Web. 18 Jan 2021.

Vancouver:

Appleby JR. Structural glaciology, dynamics and evolution of Te Moeka o Tuawe Fox Glacier, New Zealand : thesis submitted in partial fulfilment of the degree of Doctor of Philosophy in Geography at Massey University, Palmerston North, New Zealand . [Internet] [Thesis]. Massey University; 2012. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/10179/4167.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Appleby JR. Structural glaciology, dynamics and evolution of Te Moeka o Tuawe Fox Glacier, New Zealand : thesis submitted in partial fulfilment of the degree of Doctor of Philosophy in Geography at Massey University, Palmerston North, New Zealand . [Thesis]. Massey University; 2012. Available from: http://hdl.handle.net/10179/4167

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

23. Rosier, Job (author). Stability of the floating ice shelf of the Petermann glacier and its response to a changing environment.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:33bc746a-472d-4919-af26-e12896bf9abb

► Nearly all major glaciers in Greenland have reduced in size over the last two decades. An increase in the amount of ice transported from the… (more)

▼ Nearly all major glaciers in Greenland have reduced in size over the last two decades. An increase in the amount of ice transported from the Greenland ice sheet to the oceans is predicted following an increase in Arctic air and ocean temperatures. One of the last glaciers with a floating ice shelf and draining a substantial area of the Greenland ice sheet is the Petermann glacier in North West Greenland. With two major calving events in 2010 and 2012 the extent of its floating ice shelf was reduced to only half of that prior to 2010 and since 2016 new fractures indicate a new calving event is predicted to reduce the length of the glacier by ~14 km. Multiple studies have indicated that after the major calving event of 2012 the glacier accelerated and a new increase in the velocity, possibly linked to the next calving event, has already been observed. With every part of the glacier’s ice shelf that is lost the resistive force that holds the glacier back is reduced and the amount of ice drained to the ocean increases. Losing its entire ice shelf could lead to a significant increase in the contribution of the Petermann glacier to global sea level rise as the Petermann fjord extends inlands below sea level for nearly a hundred kilometers. This study uses ice thickness and surface elevation data combined with velocity data from different sources to analyze the current and future stability of the Petermann glacier. Ice thickness and the velocity data is used as input in a fracture model in order to investigate the different contributions of stress, thinning and an increase in the availability of surface water to the depth crevasses can reach. The areas on the glacier that show locations where crevasses penetrate deep into the ice indicate that the glacier is vulnerable to fracturing in those spots. Connected weak spots might indicate further potential for future calving events. The results derived from the thickness data and the subsequent melt rates show that near the grounding line the glacier is experiencing significantly larger melt rates than near the calving front. The high melt rates are concentrated in space and caused three large basal channels to form, which run downstream parallel to the flow direction. The location of the western channel corresponds to the location of fractures that initiated during the same time the channel deepened, indicating a relationship between an increase in melt rate and fracturing. This relation is also observed in the results from the fracture model, where there is enough water and the ice shelf thinness fractures are capable of penetrating deep in the glacier ice. The results also show that when the average melt rate between 2011 and 2017 continues to prevail the floating ice shelf of the Petermann might be gone within the next decade Advisors/Committee Members: Lhermitte, Stef (mentor), Mottram, Ruth (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: glacier; Climate change; Remote Sensing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rosier, J. (. (2019). Stability of the floating ice shelf of the Petermann glacier and its response to a changing environment. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:33bc746a-472d-4919-af26-e12896bf9abb

Chicago Manual of Style (16^th Edition):

Rosier, Job (author). “Stability of the floating ice shelf of the Petermann glacier and its response to a changing environment.” 2019. Masters Thesis, Delft University of Technology. Accessed January 18, 2021. http://resolver.tudelft.nl/uuid:33bc746a-472d-4919-af26-e12896bf9abb.

MLA Handbook (7^th Edition):

Rosier, Job (author). “Stability of the floating ice shelf of the Petermann glacier and its response to a changing environment.” 2019. Web. 18 Jan 2021.

Vancouver:

Rosier J(. Stability of the floating ice shelf of the Petermann glacier and its response to a changing environment. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 18]. Available from: http://resolver.tudelft.nl/uuid:33bc746a-472d-4919-af26-e12896bf9abb.

Council of Science Editors:

Rosier J(. Stability of the floating ice shelf of the Petermann glacier and its response to a changing environment. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:33bc746a-472d-4919-af26-e12896bf9abb

University of Montana

24. Bedoya, Diana Maritza. Exploring Detracting Elements and Coping Mechanisms Reported in Four Trails along the Going-To-The-Sun Road Corridor in Glacier National Park.

Degree: MS, 2013, University of Montana

URL: https://scholarworks.umt.edu/etd/415

► The results of the ongoing study to monitor visitors use, and the shuttle experience in Glacier National Park demonstrate that use levels in the park… (more)

▼ The results of the ongoing study to monitor visitors use, and the shuttle experience in Glacier National Park demonstrate that use levels in the park have increased considerably. Thus, it was pertinent to evaluate to which extent the conditions on the trails are so undesirable or unexpected for visitors that they would usually employ coping responses to deal with those situations. This research was structured to provide a description of the salient setting attributes and personal factors associated with the identification of the detracting elements of the recreational experiences, and types of coping mechanisms usually used. The study reported here was implemented at four of the most popular trails in GNP: Avalanche Lake, The Loop, Sunrift Gorge, and the Highline trail. A total 765 on-site collected surveys were used for the analysis. Ordinary least squares regression was used to test whether situational and personal factors could predict detracting elements and coping responses. One-way analysis of variance was used to test whether the use of coping mechanisms varied by type of detractor, and by use level. From the overall sample, results indicated that 67% of the respondents experienced “a lot of other hikers” as the most common detracting element (48%), followed by non-natural sounds (42%) and overflights (32%). For hikers experiencing detracting elements, 80% would usually use a coping mechanism to reduce the negative effect of that kind of detractor. Hikers sampled employed different cognitive coping mechanisms. Rationalization and product shift would be used 49% and 47% respectively. Displacement, in the form of seasonal, time of the day, activity or location changes, was also a usual response considered for 47% of the hikers sampled. The results suggested that personal factors were more useful than situational factors to predict detracting elements, especially crowding. The regression models suggested that there is still much of the variance in the use of coping responses that needs to be explained by factors other than the ones used in this study. Furthermore, there was not enough evidence found to support differences in the use of coping responses by use levels and number of detractors. However, encounters with wildlife were found to have incidence in the use of cognitive coping responses.

Subjects/Keywords: coping; Crowding; Glacier; wildife

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bedoya, D. M. (2013). Exploring Detracting Elements and Coping Mechanisms Reported in Four Trails along the Going-To-The-Sun Road Corridor in Glacier National Park. (Masters Thesis). University of Montana. Retrieved from https://scholarworks.umt.edu/etd/415

Chicago Manual of Style (16^th Edition):

Bedoya, Diana Maritza. “Exploring Detracting Elements and Coping Mechanisms Reported in Four Trails along the Going-To-The-Sun Road Corridor in Glacier National Park.” 2013. Masters Thesis, University of Montana. Accessed January 18, 2021. https://scholarworks.umt.edu/etd/415.

MLA Handbook (7^th Edition):

Bedoya, Diana Maritza. “Exploring Detracting Elements and Coping Mechanisms Reported in Four Trails along the Going-To-The-Sun Road Corridor in Glacier National Park.” 2013. Web. 18 Jan 2021.

Vancouver:

Bedoya DM. Exploring Detracting Elements and Coping Mechanisms Reported in Four Trails along the Going-To-The-Sun Road Corridor in Glacier National Park. [Internet] [Masters thesis]. University of Montana; 2013. [cited 2021 Jan 18]. Available from: https://scholarworks.umt.edu/etd/415.

Council of Science Editors:

Bedoya DM. Exploring Detracting Elements and Coping Mechanisms Reported in Four Trails along the Going-To-The-Sun Road Corridor in Glacier National Park. [Masters Thesis]. University of Montana; 2013. Available from: https://scholarworks.umt.edu/etd/415

University of Montana

25. Nikolaeva, Elena. Exploring visitor experiences along the Going-to-the-Sun corridor of Glacier National Park.

Degree: MS, 2012, University of Montana

URL: https://scholarworks.umt.edu/etd/422

► Visitor use on the Going-to-the-Sun Road (GTSR) corridor is one of the most critical issues that Glacier National Park faces. According to the park’s General… (more)

▼ Visitor use on the Going-to-the-Sun Road (GTSR) corridor is one of the most critical issues that Glacier National Park faces. According to the park’s General Management Plan, it should be addressed to safeguard the quality of park resources and the visitor experiences. 80% of park visitors travel along at least some part of the road, which is the primary park experience and one of the most spectacular highlights of the park. The road was built in early 1930, and now brings almost 2 million visitors annually into the heart of Glacier NP. Increased number of cars on this narrow historic road caused traffic problems such as crowding at pullouts and traffic jams, as well as safety issues. The situation with traffic worsened also because of the road reconstruction which was aimed to rehabilitate the road and solve traffic problems in the long run. A new 10-year reconstruction project started in 2007; as a part of it a free shuttle service was introduced. It poses important questions about impacts on visitor behavior, visitor use, and visitor experiences in the park. Understanding existing patterns and trends in the current context is important. This exploratory research attempts to identify and describe the nature of actual and desired experiences from the perspective of visitors. It reveals the primary dimensions of the experiences, discusses the factors that influence them, and talks about connections, common patterns and trends. Data collection and analysis for this study were guided by the method of Grounded Theory. Fifty in-depth interviews with diverse Glacier NP visitors in various parts of the GTSR corridor were conducted. Interviews were tape-recorded, transcribed, and analyzed using a system of coding that identifies themes through which interviews can be organized, interpreted and presented. Through this process, three main categories of visitor experiences were identified: “Glacier as a Unique Setting”, “Motivations and Benefits”, and “Human Interactions”. They represent mainly social dimensions of visitor experiences and include some biophysical elements. Aspects that are associated with managerial dimensions are discussed separately with less depth within the forth category – “Managerial Issues”. The results of this study imply that there is a broad range of experiences occurring within this key corridor of Glacier NP. There is no single story and combination of the revealed dimensions; every visitor is different and his/her experience is unique. However, some common patterns exist, and several experience typologies are identified. Using tools such as the Recreation Opportunity Spectrum is recommended to embrace the diversity of experiences, while protecting the setting from changes in the conditions, and better preserving and improving different types of visitor experiences in Glacier NP.

Subjects/Keywords: Glacier NP; visitor experiences

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nikolaeva, E. (2012). Exploring visitor experiences along the Going-to-the-Sun corridor of Glacier National Park. (Masters Thesis). University of Montana. Retrieved from https://scholarworks.umt.edu/etd/422

Chicago Manual of Style (16^th Edition):

Nikolaeva, Elena. “Exploring visitor experiences along the Going-to-the-Sun corridor of Glacier National Park.” 2012. Masters Thesis, University of Montana. Accessed January 18, 2021. https://scholarworks.umt.edu/etd/422.

MLA Handbook (7^th Edition):

Nikolaeva, Elena. “Exploring visitor experiences along the Going-to-the-Sun corridor of Glacier National Park.” 2012. Web. 18 Jan 2021.

Vancouver:

Nikolaeva E. Exploring visitor experiences along the Going-to-the-Sun corridor of Glacier National Park. [Internet] [Masters thesis]. University of Montana; 2012. [cited 2021 Jan 18]. Available from: https://scholarworks.umt.edu/etd/422.

Council of Science Editors:

Nikolaeva E. Exploring visitor experiences along the Going-to-the-Sun corridor of Glacier National Park. [Masters Thesis]. University of Montana; 2012. Available from: https://scholarworks.umt.edu/etd/422

University of British Columbia

26. Stanley, Alan David. Relation between secondary structures in Athabasca Glacier and laboratory deformed ice.

Degree: PhD, Geological Sciences, 1965, University of British Columbia

URL: http://hdl.handle.net/2429/37197

► Glacier movement produces numerous secondary structures including layers formed by different types of ice and the preferred crystallographic orientation of constituent grains. This thesis describes… (more)

▼ Glacier movement produces numerous secondary structures including layers formed by different types of ice and the preferred crystallographic orientation of constituent grains. This thesis describes structures on Athabasca Glacier and shows how they are related to systems of stress that produce glacier flow. The surface of Athabasca Glacier can be divided into an area of prominent layers of coarse ice near the glacier margin and another formed by less distinct thick layers of fine ice in the central quarter of the ice tongue to within 800 m of the terminus. The coarse layers trend subparallel with the glacier walls and dip steeply towards the centre. In contrast, layers of fine ice near the glacier centre are near vertical and trend parallel with the direction of flow. The layers are deformed about a transverse vertical plane into a series of "similar" folds with limbs commonly separated by narrow cracks subparallel with the axial plane. Because the coarse layers near the margins, and the fine layers near the centre do not change in shape, size or attitude down the length of the glacier they must be formed at or near their present position. Cv measurements of ice grains at 25 locations on the ablation surface give fabric diagrams that represent real stress fabrics that have two or more areas of concentration containing up to 7% of the data. The diagrams may be separated into two distinct groups according to their location on the ice surface. Fabric diagrams from coarse layers near the margins have two or more maxima clustered near the pole to the layering. Diagrams from contorted fine layers near the middle of the glacier have most data concentrated in the north east quadrant, but maxima are independent of the attitude of any ice layers. In most diagrams, maxima fall on the locus of a small circle of constant radius. The observed radius lies between 30° and 50°, and the centre, located in approximately the same position in all diagrams, represents a line subparallel with the direction of glacier flow. The two types of ice and their distinct fabric indicate that two different stress systems exist in a glacier. Ice near the margin is under shear while that near the centre is under compression. In laboratory experiments, increase in the rate of creep may be attributed to some process of recrystallization. Test specimens that have recrystallized under compression are composed of small grains with Cv axes that tend to be oriented in a small circle about the unique stress axis. Fabrics of compressed ice are identical to those obtained from ice near the centre of many glaciers and show that if ice deforms most readily by glide within the basal plane, the final orientation fabric depends upon the local plane of movement and not the plane of maximum resolved shear stress.

Subjects/Keywords: Athabasca glacier

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Stanley, A. D. (1965). Relation between secondary structures in Athabasca Glacier and laboratory deformed ice. (Doctoral Dissertation). University of British Columbia. Retrieved from http://hdl.handle.net/2429/37197

Chicago Manual of Style (16^th Edition):

Stanley, Alan David. “Relation between secondary structures in Athabasca Glacier and laboratory deformed ice.” 1965. Doctoral Dissertation, University of British Columbia. Accessed January 18, 2021. http://hdl.handle.net/2429/37197.

MLA Handbook (7^th Edition):

Stanley, Alan David. “Relation between secondary structures in Athabasca Glacier and laboratory deformed ice.” 1965. Web. 18 Jan 2021.

Vancouver:

Stanley AD. Relation between secondary structures in Athabasca Glacier and laboratory deformed ice. [Internet] [Doctoral dissertation]. University of British Columbia; 1965. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/2429/37197.

Council of Science Editors:

Stanley AD. Relation between secondary structures in Athabasca Glacier and laboratory deformed ice. [Doctoral Dissertation]. University of British Columbia; 1965. Available from: http://hdl.handle.net/2429/37197

University of Texas – Austin

27. Leuro, Erick. Spatial and temporal distributions of accumulation rates on the catchment of Thwaites Glacier, West Antarctica.

Degree: PhD, Geological Sciences, 2014, University of Texas – Austin

URL: http://hdl.handle.net/2152/30455

► We make a first-order calculation of accumulation rates in the catchment of Thwaites Glacier (TG), West Antarctica using the Nye and Daansgard-Johnson methodologies. Both formulations… (more)

Subjects/Keywords: Thwaites Glacier; Accumulation rates

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Leuro, E. (2014). Spatial and temporal distributions of accumulation rates on the catchment of Thwaites Glacier, West Antarctica. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/30455

Chicago Manual of Style (16^th Edition):

Leuro, Erick. “Spatial and temporal distributions of accumulation rates on the catchment of Thwaites Glacier, West Antarctica.” 2014. Doctoral Dissertation, University of Texas – Austin. Accessed January 18, 2021. http://hdl.handle.net/2152/30455.

MLA Handbook (7^th Edition):

Leuro, Erick. “Spatial and temporal distributions of accumulation rates on the catchment of Thwaites Glacier, West Antarctica.” 2014. Web. 18 Jan 2021.

Vancouver:

Leuro E. Spatial and temporal distributions of accumulation rates on the catchment of Thwaites Glacier, West Antarctica. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2014. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/2152/30455.

Council of Science Editors:

Leuro E. Spatial and temporal distributions of accumulation rates on the catchment of Thwaites Glacier, West Antarctica. [Doctoral Dissertation]. University of Texas – Austin; 2014. Available from: http://hdl.handle.net/2152/30455

University of Alberta

28. Milne, Hannah Maree. Iceberg calving from a Canadian Arctic tidewater glacier.

Degree: MS, Department of Earth and Atmospheric Sciences, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/47429b55h

► Time lapse imagery, an audio recorder and geophones were used to detect iceberg calving events on the Belcher Glacier, Devon Island, in the Canadian High… (more)

Subjects/Keywords: Canadian Arctic; Belcher Glacier; iceberg calving; tidewater glacier; time lapse image

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Milne, H. M. (2011). Iceberg calving from a Canadian Arctic tidewater glacier. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/47429b55h

Chicago Manual of Style (16^th Edition):

Milne, Hannah Maree. “Iceberg calving from a Canadian Arctic tidewater glacier.” 2011. Masters Thesis, University of Alberta. Accessed January 18, 2021. https://era.library.ualberta.ca/files/47429b55h.

MLA Handbook (7^th Edition):

Milne, Hannah Maree. “Iceberg calving from a Canadian Arctic tidewater glacier.” 2011. Web. 18 Jan 2021.

Vancouver:

Milne HM. Iceberg calving from a Canadian Arctic tidewater glacier. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2021 Jan 18]. Available from: https://era.library.ualberta.ca/files/47429b55h.

Council of Science Editors:

Milne HM. Iceberg calving from a Canadian Arctic tidewater glacier. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/47429b55h

University of Alberta

29. Collier, Sarah E. Interactive Modelling of Glacier Climatic Mass Balance in the Karakoram Range.

Degree: PhD, Department of Earth and Atmospheric Sciences, 2015, University of Alberta

URL: https://era.library.ualberta.ca/files/rf55zb453

► Glacier behaviour in the Karakoram region of the greater Himalaya shows strong spatial and temporal heterogeneity and, in some areas, anomalous trends compared with glaciers… (more)

▼ Glacier behaviour in the Karakoram region of the greater Himalaya shows strong spatial and temporal heterogeneity and, in some areas, anomalous trends compared with glaciers elsewhere in High Asia. Knowledge of the mass balance fluctuations of Karakoram glaciers, as well as of the important driving factors and interactions between them, is limited by a scarcity of observational data. A novel approach to simulating atmosphere-cryosphere interactions is developed as a multi-scale solution to the paucity of information in this region: a process-based climatic mass balance (CMB) model is interactively coupled with a regional atmospheric model (Weather and Research Forecasting model, or WRF). The coupled model (hereafter WRF-CMB) is used to (1) investigate the surface-energy and climatic-mass fluxes of glaciers in the Karakoram over an ablation season, and (2) compare the traditional, one-way approach to simulations of glacier CMB with an interactive one. Both simulations reproduce observed magnitudes of CMB, with improvements arising from the inclusion of feedbacks from the CMB model to WRF. Supraglacial debris is prevalent in the Karakoram, with an estimated mean proportion of glacier area covered by debris of ~20 %. As debris exerts a strong control on glacier melt, there is a need to determine its influence on glacio-hydrological processes in this region. Therefore, a debris component is introduced into the CMB model that provides the first numerical treatment of moisture fluxes and phase changes in the debris layer to date, using simple parameterizations for the debris ice and water content and the latent heat flux. A case study is performed for the Miage Glacier in the Italian Alps, due to the availability of eddy covariance measurements over glacier debris cover. By comparing a “dry” and a “moist” simulation, the importance of moisture on the surface-energy and climatic-mass balance of debris-covered glaciers is investigated. Sub-debris ice melt during the ablation season is reduced when moisture effects are considered, mainly due to surface heat extraction by the latent heat flux, while during transition seasons, the presence of ice at the base of the debris layer contributes to a reduction in simulated ablation. To investigate glaciological and meteorological changes that arise due to the presence of debris in the Karakoram, the modified CMB model is introduced into WRF-CMB and two simulations are performed: one that treats glacier surfaces as debris-free and one that introduces an idealized specification for debris thickness. Debris cover strongly reduces simulated ablation, particularly at lower altitudes, with a regional mean reduction in mass loss of 30 % over an ablation season. By altering surface boundary conditions, the presence of debris also impacts near-surface meteorological conditions and atmospheric boundary layer dynamics, through changes in the turbulent exchanges of heat and moisture between the glacier surface and the atmosphere. The research presented in this thesis contributes towards an…

Subjects/Keywords: Karakoram glaciers; debris-covered glaciers; glacier; interactive atmosphere-alpine glacier modelling

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Collier, S. E. (2015). Interactive Modelling of Glacier Climatic Mass Balance in the Karakoram Range. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/rf55zb453

Chicago Manual of Style (16^th Edition):

Collier, Sarah E. “Interactive Modelling of Glacier Climatic Mass Balance in the Karakoram Range.” 2015. Doctoral Dissertation, University of Alberta. Accessed January 18, 2021. https://era.library.ualberta.ca/files/rf55zb453.

MLA Handbook (7^th Edition):

Collier, Sarah E. “Interactive Modelling of Glacier Climatic Mass Balance in the Karakoram Range.” 2015. Web. 18 Jan 2021.

Vancouver:

Collier SE. Interactive Modelling of Glacier Climatic Mass Balance in the Karakoram Range. [Internet] [Doctoral dissertation]. University of Alberta; 2015. [cited 2021 Jan 18]. Available from: https://era.library.ualberta.ca/files/rf55zb453.

Council of Science Editors:

Collier SE. Interactive Modelling of Glacier Climatic Mass Balance in the Karakoram Range. [Doctoral Dissertation]. University of Alberta; 2015. Available from: https://era.library.ualberta.ca/files/rf55zb453

University of Manchester

30. Rowan, Ann Victoria. Braided River Response To Glacial-Drainage Capture And Climate Variations Through The Last Glacial Maximum.

Degree: 2012, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:159560

► Glacial–interglacial cycles drive changes in the discharge and sediment flux from the headwaters of glaciated basins, which are recorded by proglacial fluvial sediments. Linking braided… (more)

▼ Glacial–interglacial cycles drive changes in the discharge and sediment flux from the headwaters of glaciated basins, which are recorded by proglacial fluvial sediments. Linking braided river stratigraphy to the Quaternary climate record could indicate the control of climate-driven variations in discharge and sediment flux on fluvial processes, and the magnitude and frequency of past climate variations. New Zealand is a key location for investigating terrestrial records of Southern Hemisphere climate change. The Late Quaternary braided river deposits on the Canterbury Plains, South Island, New Zealand have formed over the last 400 ka. The coastal cliff marking the southeastern margin of the Canterbury Plains provides excellent exposure of fluvial sediments deposited during the last glacial period, from ~40 ka until the end of the Last Glacial Maximum (LGM) (~18 ka).Deposition at the modern coastline of the Canterbury Plains is interpreted in the context of the climate event stratigraphy for New Zealand, which requires a precise geochronology. This thesis demonstrates the first successful application of optically stimulated luminescence (OSL) dating to glaciofluvial sediments on South Island: a technique that was previously considered unsuitable for this region. Ages produced for the coastal stratigraphy range from 36.7 ± 2.9 to 18.2 ± 1.3 ka, indicating that deposition took place during the last glacial, with little or no postglacial aggradation.Three adjacent catchments on the southern Canterbury Plains—the Rakaia, Ashburton and Rangitata—have undergone glacial-drainage capture during the period represented by the coastal stratigraphy. During glacials, transfluent ice reversed the flow direction in several key tributaries, resulting in dramatic variations in effective drainage area of the Ashburton and Rangitata, and variations in discharge and sediment flux which are recorded in the stratigraphy of these catchments. The magnitude, timing and duration of drainage capture were quantified using the Plummer and Phillips (2003) glacier model. The Ashburton catchment increased to 160% of the modern effective drainage area when temperature change relative to modern conditions exceeded -6°C during the LGM. Meanwhile, the effective drainage area of the Rangitata decreased to 63%, and the Rakaia to 93%, reducing discharge from these catchments. Furthermore, glaciation dramatically affects the seasonality of the annual hydrograph.At four coastal sites, the fluvial stratigraphy was surveyed to investigate possible variations in depositional architecture, due to both climate variations, and glacial-drainage capture in the Ashburton and Rangitata. Unexpectedly, little vertical variation in depositional architecture was found, indicating that the deposits created by the braided rivers represent sediment transport during a similar set of flow (and by inference, climate) conditions. Laterally extensive erosional surfaces separating storeys of one or two flow depths in thickness, in combination with the OSL geochronology, suggest… Advisors/Committee Members: COVEY-CRUMP, STEPHEN SJ, BROCKLEHURST, SIMON SH, Covey-Crump, Stephen, Jones, Merren, Brocklehurst, Simon.

Subjects/Keywords: glacier; New Zealand; optically stimulated luminescence; glacier modelling; sedimentology; Quaternary

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rowan, A. V. (2012). Braided River Response To Glacial-Drainage Capture And Climate Variations Through The Last Glacial Maximum. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:159560

Chicago Manual of Style (16^th Edition):

Rowan, Ann Victoria. “Braided River Response To Glacial-Drainage Capture And Climate Variations Through The Last Glacial Maximum.” 2012. Doctoral Dissertation, University of Manchester. Accessed January 18, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:159560.

MLA Handbook (7^th Edition):

Rowan, Ann Victoria. “Braided River Response To Glacial-Drainage Capture And Climate Variations Through The Last Glacial Maximum.” 2012. Web. 18 Jan 2021.

Vancouver:

Rowan AV. Braided River Response To Glacial-Drainage Capture And Climate Variations Through The Last Glacial Maximum. [Internet] [Doctoral dissertation]. University of Manchester; 2012. [cited 2021 Jan 18]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:159560.

Council of Science Editors:

Rowan AV. Braided River Response To Glacial-Drainage Capture And Climate Variations Through The Last Glacial Maximum. [Doctoral Dissertation]. University of Manchester; 2012. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:159560

Open Access Theses and Dissertations