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University of Georgia
1.
Ritchie, Glen Lorin.
Ground-based and aerial remote sensing methods for estimating cotton growth, water stress, and defoliation.
Degree: PhD, Agronomy, 2007, University of Georgia
URL: http://purl.galileo.usg.edu/uga_etd/ritchie_glen_l_200708_phd 
► Remote sensing of visible and near-infrared crop reflectance has been closely tied to crop growth and health. The purpose of this research was to extend…
(more)
▼ Remote sensing of visible and near-infrared crop reflectance has been closely tied to crop growth and health. The purpose of this research was to extend the application of
remote sensing for irrigation and defoliation management of cotton (Gossypium hirsutum L.). Leaf area index of cotton subjected to defoliation treatments was regressed against normalized indices of visible and near-infrared reflectance. It was determined that combinations of red edge and near-infrared reflectance most accurately estimate leaf area index. A camera system comprising off-the-shelf digital cameras was tested as a means of collecting visible and near-infrared reflectance data throughout the growing season and a correction factor for exposure value was derived to allow estimates of relative reflectance. Vegetation indices based on camera and spectrometer reflectance measurements were compared with crop ground cover over three seasons and found to be sensitive to changes in ground cover within a limited ground cover range. Irrigation treatments based on changes in ground cover and vegetation index values were found to use less water and have yields comparable to treatments irrigated based on soil tension measurements.
Advisors/Committee Members: James E. Hook.
Subjects/Keywords: Remote sensing
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APA (6th Edition):
Ritchie, G. L. (2007). Ground-based and aerial remote sensing methods for estimating cotton growth, water stress, and defoliation. (Doctoral Dissertation). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/ritchie_glen_l_200708_phd
Chicago Manual of Style (16th Edition):
Ritchie, Glen Lorin. “Ground-based and aerial remote sensing methods for estimating cotton growth, water stress, and defoliation.” 2007. Doctoral Dissertation, University of Georgia. Accessed February 18, 2020.
http://purl.galileo.usg.edu/uga_etd/ritchie_glen_l_200708_phd.
MLA Handbook (7th Edition):
Ritchie, Glen Lorin. “Ground-based and aerial remote sensing methods for estimating cotton growth, water stress, and defoliation.” 2007. Web. 18 Feb 2020.
Vancouver:
Ritchie GL. Ground-based and aerial remote sensing methods for estimating cotton growth, water stress, and defoliation. [Internet] [Doctoral dissertation]. University of Georgia; 2007. [cited 2020 Feb 18].
Available from: http://purl.galileo.usg.edu/uga_etd/ritchie_glen_l_200708_phd.
Council of Science Editors:
Ritchie GL. Ground-based and aerial remote sensing methods for estimating cotton growth, water stress, and defoliation. [Doctoral Dissertation]. University of Georgia; 2007. Available from: http://purl.galileo.usg.edu/uga_etd/ritchie_glen_l_200708_phd
University of Hong Kong
2.
孙立群; Sun, Liqun.
A comprehensive analysis of terrestrial surface features
using remote sensing data.
Degree: PhD, 2014, University of Hong Kong
URL: Sun,
L.
[孙立群].
(2014).
A
comprehensive
analysis
of
terrestrial
surface
features
using
remote
sensing
data.
(Thesis).
University
of
Hong
Kong,
Pokfulam,
Hong
Kong
SAR.
Retrieved
from
http://dx.doi.org/10.5353/th_b5351026
;
http://dx.doi.org/10.5353/th_b5351026
;
http://hdl.handle.net/10722/208044
► Using the remote sensing data, this study aims to enhance our understanding of land surface features, including ecosystem distribution in association with topographic controls and…
(more)
▼ Using the
remote sensing data, this study aims to
enhance our understanding of land surface features, including
ecosystem distribution in association with topographic controls and
climatic controls, vegetation disturbance due to natural hazards,
and surface temperature changes with consideration of the influence
of urbanization. In this study, the Global Inventory Monitoring and
Modeling System (GIMMS) Normalized Difference Vegetation Index
(NDVI) data sets from 1982 to 2006 were used to explore vegetation
variation. A data mining method, Exhaustive Chi-squared Automatic
Interaction Detector algorithm, was successfully applied to
investigate the topographic influences on vegetation distribution
in China. The study revealed that elevation is a predominant factor
for controlling vegetation distribution among different topographic
attributes (slope, aspect, Compound Topographic Index (CTI) and
distance to the nearest river). Further, the study results
indicated that solar radiation is the limited factor for plant
growth in majority of the Northern Hemisphere in summer, and
temperature is the main limitation for other seasons.
Partial
correlation coefficient (PCC) method was adopted to investigate the
complex relationships of NDVI with weather variables (i.e.,
temperature, precipitation and solar radiation) and key climate
indices (such as, El Niño-Southern Oscillation (ENSO), Indian Ocean
Dipole (IOD), Arctic Oscillation (AO), and Antarctic Oscillation
(AAO)). The study indicated that AO is the most significant index
in affecting the temperatures in spring and winter in the Northern
Hemisphere.
This study enhanced the understanding of vegetation
responds to asymmetric daytime (Tmax) and nighttime (Tmin) warming
in different seasons. The result revealed that asymmetric warming
of Tmax and Tmin may influence vegetation photosynthesis and
respiration in the plant growth in different periods across biomes.
In spring and autumn, vegetation in boreal and wet temperate
regions of the Northern Hemisphere is positively correlated with
Tmax and negatively correlated with Tmin, whereas, in dry regions
the NDVI is always negatively correlated with Tmax and positively
correlated with Tmin. In summer, the NDVI is negatively correlated
with Tmax in many dry regions.
In addition, this study developed
a new index, Continued Vegetation Decrease Index (CVDI), to detect
vegetation disturbance due to extreme natural hazards (such as,
earthquake, wildfire, ice storms and so on). Using the Wenchuan
earthquake occurred in Sichuan China on 12 May 2008 as an example,
this study confirmed that the CVDI method can effectively identify
the regions with severe vegetation damage, and it is expected that
the newly-developed index can be used for detecting vegetation
disturbance in other regions of the world.
Finally, using the
remote sensing data (land use data and surface temperature data)
and weather station data, this study developed a new method to
evaluate the urbanization influence on the temperature recorded at
weather stations. The…
Advisors/Committee Members: Chen, J.
Subjects/Keywords: Remote sensing
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APA (6th Edition):
孙立群; Sun, L. (2014). A comprehensive analysis of terrestrial surface features
using remote sensing data. (Doctoral Dissertation). University of Hong Kong. Retrieved from Sun, L. [孙立群]. (2014). A comprehensive analysis of terrestrial surface features using remote sensing data. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5351026 ; http://dx.doi.org/10.5353/th_b5351026 ; http://hdl.handle.net/10722/208044
Chicago Manual of Style (16th Edition):
孙立群; Sun, Liqun. “A comprehensive analysis of terrestrial surface features
using remote sensing data.” 2014. Doctoral Dissertation, University of Hong Kong. Accessed February 18, 2020.
Sun, L. [孙立群]. (2014). A comprehensive analysis of terrestrial surface features using remote sensing data. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5351026 ; http://dx.doi.org/10.5353/th_b5351026 ; http://hdl.handle.net/10722/208044.
MLA Handbook (7th Edition):
孙立群; Sun, Liqun. “A comprehensive analysis of terrestrial surface features
using remote sensing data.” 2014. Web. 18 Feb 2020.
Vancouver:
孙立群; Sun L. A comprehensive analysis of terrestrial surface features
using remote sensing data. [Internet] [Doctoral dissertation]. University of Hong Kong; 2014. [cited 2020 Feb 18].
Available from: Sun, L. [孙立群]. (2014). A comprehensive analysis of terrestrial surface features using remote sensing data. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5351026 ; http://dx.doi.org/10.5353/th_b5351026 ; http://hdl.handle.net/10722/208044.
Council of Science Editors:
孙立群; Sun L. A comprehensive analysis of terrestrial surface features
using remote sensing data. [Doctoral Dissertation]. University of Hong Kong; 2014. Available from: Sun, L. [孙立群]. (2014). A comprehensive analysis of terrestrial surface features using remote sensing data. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5351026 ; http://dx.doi.org/10.5353/th_b5351026 ; http://hdl.handle.net/10722/208044
University of Hawaii – Manoa
3.
Barnes, Mallory Liebl.
An assessment of diurnal and seasonal cloud cover changes over the Hawaiian islands using terra and aqua modis.
Degree: 2016, University of Hawaii – Manoa
URL: http://hdl.handle.net/10125/100571
► M.S. University of Hawaii at Manoa 2013.
Knowledge of cloud cover patterns is important in effective management of natural resources, climate change studies, and remote…
(more)
▼ M.S. University of Hawaii at Manoa 2013.
Knowledge of cloud cover patterns is important in effective management of natural resources, climate change studies, and remote sensing applications. The objective of this study was to develop a comprehensive understanding of the spatial, seasonal, and diurnal patterns in cloud cover frequency over the Hawaiian Islands using high resolution image data (every 6 hours at 1 km) from the National Aeronautics and Space Administration's Moderate Resolution Imaging Spectroradiometer (MODIS) sensors aboard the Terra and Aqua satellite platforms. The Terra and Aqua MODIS cloud mask products, which provide the likelihood that clouds obscure a given 1 km pixel, were obtained for the entire MODIS time series (10+ years) over the main Hawaiian Islands. Monthly statistics were generated from the daily cloud mask data, including mean cloud cover frequency at the four overpass times of ~11am, 2pm, 11pm, and 2am. The derived monthly statistics showed several significant trends that were consistent with generally known rainfall patterns. First, cloud cover frequency increased with height above the lifting condensation level (roughly 600 m) until the trade wind inversion (mean elevation 2100-2200 m), above which it was generally clear. Second, cloud cover frequency was higher on the windward (northeastern) sides of mountains than on the leeward (southwestern sides) of the mountains on all of the main Hawaiian Islands. Third, irrespective of season, mean cloud cover frequency was higher in the afternoon than in the morning and higher in the daytime than in the nighttime. Lastly, the dry season months (May – Oct) were less cloudy than the wet season months (Nov – Apr), and this pattern was stronger at nighttime than during the daytime. The derived statistics also revealed a unique and unexpected trend of anomalously low cloud cover in December and January over the Hawaiian Islands. The monthly time series produced in this thesis is the first high spatial resolution cloud cover dataset in Hawaiʻi and is expected to be a useful resource in a variety of applications, including the management of energy and fresh water resources.
Subjects/Keywords: remote sensing
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APA ·
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Manager
APA (6th Edition):
Barnes, M. L. (2016). An assessment of diurnal and seasonal cloud cover changes over the Hawaiian islands using terra and aqua modis. (Thesis). University of Hawaii – Manoa. Retrieved from http://hdl.handle.net/10125/100571
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Barnes, Mallory Liebl. “An assessment of diurnal and seasonal cloud cover changes over the Hawaiian islands using terra and aqua modis.” 2016. Thesis, University of Hawaii – Manoa. Accessed February 18, 2020.
http://hdl.handle.net/10125/100571.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Barnes, Mallory Liebl. “An assessment of diurnal and seasonal cloud cover changes over the Hawaiian islands using terra and aqua modis.” 2016. Web. 18 Feb 2020.
Vancouver:
Barnes ML. An assessment of diurnal and seasonal cloud cover changes over the Hawaiian islands using terra and aqua modis. [Internet] [Thesis]. University of Hawaii – Manoa; 2016. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10125/100571.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Barnes ML. An assessment of diurnal and seasonal cloud cover changes over the Hawaiian islands using terra and aqua modis. [Thesis]. University of Hawaii – Manoa; 2016. Available from: http://hdl.handle.net/10125/100571
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
4.
Garcia, Isabel Antoinette.
UAS Multispectral Imaging for Detecting Plant Stress Due to Iron Chlorosis in Grain Sorghum.
Degree: 2018, Texas A&M University – Corpus Christi
URL: http://pqdtopen.proquest.com/#viewpdf?dispub=10843547
► This study uses a small Unmanned Aircraft System (sUAS) equipped with a multispectral sensor to assess various Vegetation Indices (VIs) for their potential to…
(more)
▼ This study uses a small Unmanned Aircraft System (sUAS) equipped with a multispectral sensor to assess various Vegetation Indices (VIs) for their potential to monitor iron chlorosis levels in a grain sorghum crop. Iron chlorosis is a nutritional disorder that affects numerous varieties of crops and plants that are grown on high-pH, calcareous soils and greatly affects crop yield. The objective of this project is to find the best Vegetation Index (VI) to detect and monitor iron chlorosis. A series of flights were completed over the course of the growing season and processed using Structure-from-Motion (SfM) photogrammetry to create orthorectified, multispectral reflectance maps in the red, green, red-edge, and near-infrared wavelengths. A series of ground data collection methods were used to analyze stress and chlorophyll levels and grain yield, correlating them to sUAS-acquired four-band multispectral imagery covering the area of interest for ground control and precise crop examination. 25 Vegetation Indices (VIs) were calculated using the collected reflectance maps and soil-removed reflectance maps (a supervised classification was used to remove soil via a binary classification). The separability for each VI was then calculated using a two-class distance measure, determining which contained the largest separation between the pixels representing iron chlorosis and healthy vegetation. The field-acquired levels of iron chlorosis were used to conclude which VIs achieved the best results for the dataset as a whole and at each level of chlorosis (low, moderate and severe). It was concluded that the MERIS Terrestrial Chlorophyll (MTCI), Normalized Difference Red Edge (NDRE), and Normalized Green (NG) indices achieved the highest amount of separation between the iron chlorotic and healthy plant populations, with the NG being the most popular for both soil-included and soil-removed VIs, with soil-removed VIs reaching higher levels of separability.
Subjects/Keywords: Remote sensing
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APA ·
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CSE |
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Manager
APA (6th Edition):
Garcia, I. A. (2018). UAS Multispectral Imaging for Detecting Plant Stress Due to Iron Chlorosis in Grain Sorghum. (Thesis). Texas A&M University – Corpus Christi. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=10843547
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Garcia, Isabel Antoinette. “UAS Multispectral Imaging for Detecting Plant Stress Due to Iron Chlorosis in Grain Sorghum.” 2018. Thesis, Texas A&M University – Corpus Christi. Accessed February 18, 2020.
http://pqdtopen.proquest.com/#viewpdf?dispub=10843547.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Garcia, Isabel Antoinette. “UAS Multispectral Imaging for Detecting Plant Stress Due to Iron Chlorosis in Grain Sorghum.” 2018. Web. 18 Feb 2020.
Vancouver:
Garcia IA. UAS Multispectral Imaging for Detecting Plant Stress Due to Iron Chlorosis in Grain Sorghum. [Internet] [Thesis]. Texas A&M University – Corpus Christi; 2018. [cited 2020 Feb 18].
Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10843547.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Garcia IA. UAS Multispectral Imaging for Detecting Plant Stress Due to Iron Chlorosis in Grain Sorghum. [Thesis]. Texas A&M University – Corpus Christi; 2018. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=10843547
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
5.
Kaplan, Hannah Hackett.
Near-Infrared Reflectance Spectroscopy of Organics on Earth
and Planetary Surfaces: New Insights from Laboratory and Spacecraft
Data.
Degree: Department of Earth, Environmental, and Planetary
Sciences, 2018, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:792669/
► Organic matter is present on many bodies in the solar system. The parent bodies of carbonaceous chondrite meteorites, for example, are known to contain a…
(more)
▼ Organic matter is present on many bodies in the solar
system. The parent bodies of carbonaceous chondrite meteorites, for
example, are known to contain a diverse array of organic compounds
that may be relevant to prebiotic chemistry. This thesis explores
near-infrared reflectance spectroscopy, a
remote, rapid, and
non-destructive method, for quantifying organic matter in geologic
materials such as carbonaceous chondrites. Laboratory studies of
clay-organic mixtures, sedimentary rocks, and carbonaceous
chondrites with known organic and inorganic chemistry are used to
constrain the effects of organic composition and abundance on the
reflectance spectrum. Vibrational absorptions due to aliphatic and
aromatic C-H bonds at 3.2 – 3.6 µm are specifically targeted as
these absorptions have been detected by spacecraft and ground-based
infrared observations of comets, asteroids, moons, and the
interstellar medium. When organic composition is controlled, the
3.4 µm absorption strength increases linearly with abundance (wt.%)
of organics in the sample. Variations in organic composition, as
measured by atomic hydrogen to carbon ratio (H/C), likewise
influence the strength of the aliphatic and aromatic absorptions.
Reflectance spectra of pure organics (e.g. kerogen from sedimentary
rocks and insoluble organic matter from meteorites) are collected
to better quantify compositional variations within the spectrum and
to provide a spectral library for future compositional modeling.
Together the pure organic and bulk rock spectra enable the
determination of detection limits for organic matter with
reflectance spectroscopy in terms of organic abundance (wt.%) and
composition (H/C). Ceres provides an ideal application of this
laboratory work. In 2017, aliphatic organics were detected on the
surface of dwarf planet Ceres with the Visible and InfraRed (VIR)
spectrometer. This detection is considered within the context of
meteorite, insoluble organic matter, and kerogen laboratory spectra
with the goal of constraining organic abundance and composition.
Spectral modeling estimates between 45 – 65% insoluble organic
matter on the surface of Ceres, placing firm constraints on the
origin of these organics. Other applications of this work include
upcoming missions to primitive asteroids, where organics may be
detected. Data and returned samples from these missions can help to
test spectral models for determining the composition of planetary
surfaces.
Advisors/Committee Members: Milliken, Ralph (Advisor), Mustard, John (Reader), Huang, Yongsong (Reader), Pieters, Carle (Reader), Rivkin, Andrew (Reader).
Subjects/Keywords: Remote sensing
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APA ·
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MLA ·
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APA (6th Edition):
Kaplan, H. H. (2018). Near-Infrared Reflectance Spectroscopy of Organics on Earth
and Planetary Surfaces: New Insights from Laboratory and Spacecraft
Data. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:792669/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kaplan, Hannah Hackett. “Near-Infrared Reflectance Spectroscopy of Organics on Earth
and Planetary Surfaces: New Insights from Laboratory and Spacecraft
Data.” 2018. Thesis, Brown University. Accessed February 18, 2020.
https://repository.library.brown.edu/studio/item/bdr:792669/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kaplan, Hannah Hackett. “Near-Infrared Reflectance Spectroscopy of Organics on Earth
and Planetary Surfaces: New Insights from Laboratory and Spacecraft
Data.” 2018. Web. 18 Feb 2020.
Vancouver:
Kaplan HH. Near-Infrared Reflectance Spectroscopy of Organics on Earth
and Planetary Surfaces: New Insights from Laboratory and Spacecraft
Data. [Internet] [Thesis]. Brown University; 2018. [cited 2020 Feb 18].
Available from: https://repository.library.brown.edu/studio/item/bdr:792669/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kaplan HH. Near-Infrared Reflectance Spectroscopy of Organics on Earth
and Planetary Surfaces: New Insights from Laboratory and Spacecraft
Data. [Thesis]. Brown University; 2018. Available from: https://repository.library.brown.edu/studio/item/bdr:792669/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
6.
Spera, Stephanie Anne.
Land Use Change Across the Brazilian Cerrado,
2001-2013.
Degree: Geological Sciences, 2017, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:730641/
► Over the past four decades, the Cerrado region of Brazil has transitioned from a land of sparsely inhabited forests and shrublands to an industrial agriculture…
(more)
▼ Over the past four decades, the Cerrado region of
Brazil has transitioned from a land of sparsely inhabited forests
and shrublands to an industrial agriculture powerhouse. Here, we
map annual agricultural land-use change across the biome and
analyze the socioeconomic and environmental drivers and
consequences of these changes focusing on Mato Grosso State, Goiás
State, and the Matopiba region. Chapter 1 introduces a
remote
sensing methodology which allows for the classification of
agricultural land covers across Mato Grosso State, Brazil between
2003-2013. The data produced with this MODIS EVI phenology-based
decision tree algorithm are used to analyze determinants of
agricultural expansion and abandonment in the state. Agriculture
both expanded and intensified throughout the region, and scarcity
of ‘good’ agricultural land may be partly responsible for the
slow-down in agricultural expansion during the latter half of the
study period. Chapter 2 uses a modified algorithm to map
agricultural land cover across the entire Cerrado. Focusing on
Brazil’s newest agricultural frontier region, Matopiba, we analyze
the effects of agricultural expansion on the water balance. Our
results demonstrate that this agricultural expansion has led to a
decrease in evapotranspiration in the region, which could be
detrimental to the water balance and ecosystem functioning of both
the Cerrado and Amazon. Chapter 3 uses this Cerrado-wide dataset to
determine the characteristics and drivers of sugarcane expansion in
the state of Goiás. Our results demonstrate that most new sugarcane
land is sourced in pasture. Moreover, the expansion of sugarcane is
not
subject to biophysical constraints, and instead complex
interactions between global and local drivers affect its expansion.
Chapter 4 discusses the Cerrado as a ‘sacrifice zone’, synthesizes
the results of the previous chapters, and discusses the policy
implications of this work.
Advisors/Committee Members: Mustard, Johnathon (Director), VanWey, Leah (Director), Lynch, Amanda (Reader), Hirth, James (Reader), Assuncao, Juliano (Reader).
Subjects/Keywords: remote sensing
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APA ·
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to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Spera, S. A. (2017). Land Use Change Across the Brazilian Cerrado,
2001-2013. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:730641/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Spera, Stephanie Anne. “Land Use Change Across the Brazilian Cerrado,
2001-2013.” 2017. Thesis, Brown University. Accessed February 18, 2020.
https://repository.library.brown.edu/studio/item/bdr:730641/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Spera, Stephanie Anne. “Land Use Change Across the Brazilian Cerrado,
2001-2013.” 2017. Web. 18 Feb 2020.
Vancouver:
Spera SA. Land Use Change Across the Brazilian Cerrado,
2001-2013. [Internet] [Thesis]. Brown University; 2017. [cited 2020 Feb 18].
Available from: https://repository.library.brown.edu/studio/item/bdr:730641/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Spera SA. Land Use Change Across the Brazilian Cerrado,
2001-2013. [Thesis]. Brown University; 2017. Available from: https://repository.library.brown.edu/studio/item/bdr:730641/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Rochester Institute of Technology
7.
Munoz Reales, Marcela.
Laplacian eigenmaps manifold learning and anomaly detection methods for spectral images.
Degree: School of Mathematical Sciences (COS), 2010, Rochester Institute of Technology
URL: https://scholarworks.rit.edu/theses/4805
► Spectral images provide a large amount of spectral information about a scene, but sometimes when studying images, we are interested in specific components. It is…
(more)
▼ Spectral images provide a large amount of spectral information about a scene, but sometimes when studying images, we are interested in specific components. It is a difficult problem to separate the relevant information or what we call interesting from the background of a spectral image, even more so if our target objects are unknown. Anomaly detection is a process by which algorithms are designed to separate the anomalous (different) points from the background of an image. The data is complex and lives in a high dimension, manifold learning algorithms are used to analyze data that lives in a high dimensional space, but that can be represented as a lower dimensional manifold embedded in the high dimensional space. Laplacian Eigenmaps is a manifold learning algorithm that applies spectral graph theory to perform a non-linear dimensionality reduction that preserves local neighborhood information. We present an approach to reduce the dimension of the data and separate anomalous pixels in spectral images using Laplacian Eigenmaps.
Advisors/Committee Members: Basener, William.
Subjects/Keywords: Remote sensing
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APA (6th Edition):
Munoz Reales, M. (2010). Laplacian eigenmaps manifold learning and anomaly detection methods for spectral images. (Thesis). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/4805
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Munoz Reales, Marcela. “Laplacian eigenmaps manifold learning and anomaly detection methods for spectral images.” 2010. Thesis, Rochester Institute of Technology. Accessed February 18, 2020.
https://scholarworks.rit.edu/theses/4805.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Munoz Reales, Marcela. “Laplacian eigenmaps manifold learning and anomaly detection methods for spectral images.” 2010. Web. 18 Feb 2020.
Vancouver:
Munoz Reales M. Laplacian eigenmaps manifold learning and anomaly detection methods for spectral images. [Internet] [Thesis]. Rochester Institute of Technology; 2010. [cited 2020 Feb 18].
Available from: https://scholarworks.rit.edu/theses/4805.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Munoz Reales M. Laplacian eigenmaps manifold learning and anomaly detection methods for spectral images. [Thesis]. Rochester Institute of Technology; 2010. Available from: https://scholarworks.rit.edu/theses/4805
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
8.
Silva, Carlos Edibaldo.
The Biology of Plant-Atmosphere Feedbacks in the Global
Carbon Cycle.
Degree: Ecological and Evolutionary Biology, 2018, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:792858/
► Feedbacks between Earth’s terrestrial ecosystems and the atmosphere may accelerate or slow climate change over this century. This uncertainty exists because two dominant land-atmosphere feedbacks…
(more)
▼ Feedbacks between Earth’s terrestrial ecosystems and
the atmosphere may accelerate or slow climate change over this
century. This uncertainty exists because two dominant
land-atmosphere feedbacks – plant sensitivity to increased heat and
drought and sensitivity to rising atmospheric CO2 – remain poorly
constrained. This dissertation investigates both feedbacks,
integrating field observations,
remote sensing, and modeling.
Chapter 1 uses long-term plot observations of canopy height to
characterize the sensitivity of intact tropical forest to severe
heat and drought during the 1998 El Niño. The analysis finds
evidence of drought resilience, as the canopy recovered to its
equilibrium height distribution within 5 years. The severity of
drought impacts also varied as a function of landscape topography.
Chapter 2 uses a stochastic model of forest carbon dynamics to
examine the mechanisms driving long-term net carbon uptake in
intact Amazonian forest. Although this carbon uptake is widely
attributed to CO2 fertilization – enhanced photosynthesis due to
elevated atmospheric CO2 – my stochastic simulations reproduced key
features of the Amazonian carbon sink, despite constant
photosynthesis. This result suggests intact Amazonian forest may be
less sensitive to increasing atmospheric CO2 than previously
assumed. Chapter 3 assimilates tower observations of solar-induced
chlorophyll fluorescence (SIF) and canopy photosynthesis within a
canopy radiative transfer model to infer the photochemical state of
the canopy. The analysis finds photochemical stress during a
moderate drought reduced SIF, although photosynthesis remained
constant. Sustained photosynthesis during drought may owe to
elevated atmospheric CO2. The work developed in Chapter 3 offers a
promising approach to global monitoring of photosynthesis via
remote SIF measurements – an essential step to constraining
feedbacks between terrestrial ecosystems and the
atmosphere.
Advisors/Committee Members: Kellner, James (Advisor), Porder, Stephen (Reader), Sax, Dov (Reader), Lee, Jung-Eun (Reader).
Subjects/Keywords: Remote sensing
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APA (6th Edition):
Silva, C. E. (2018). The Biology of Plant-Atmosphere Feedbacks in the Global
Carbon Cycle. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:792858/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Silva, Carlos Edibaldo. “The Biology of Plant-Atmosphere Feedbacks in the Global
Carbon Cycle.” 2018. Thesis, Brown University. Accessed February 18, 2020.
https://repository.library.brown.edu/studio/item/bdr:792858/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Silva, Carlos Edibaldo. “The Biology of Plant-Atmosphere Feedbacks in the Global
Carbon Cycle.” 2018. Web. 18 Feb 2020.
Vancouver:
Silva CE. The Biology of Plant-Atmosphere Feedbacks in the Global
Carbon Cycle. [Internet] [Thesis]. Brown University; 2018. [cited 2020 Feb 18].
Available from: https://repository.library.brown.edu/studio/item/bdr:792858/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Silva CE. The Biology of Plant-Atmosphere Feedbacks in the Global
Carbon Cycle. [Thesis]. Brown University; 2018. Available from: https://repository.library.brown.edu/studio/item/bdr:792858/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
9.
Cannon, Kevin Michael.
Nature and Evolution of the Martian Crust and Regolith: New
Insights from Meteorites, Experiments and Remote Sensing.
Degree: Department of Earth, Environmental, and Planetary
Sciences, 2017, Brown University
URL: https://repository.library.brown.edu/studio/item/bdr:733290/
► The crust of Mars used to be thought of as a simple sequence of basaltic lava flows. However, new data from orbital spectroscopy, rover observations…
(more)
▼ The crust of Mars used to be thought of as a simple
sequence of basaltic lava flows. However, new data from orbital
spectroscopy, rover observations and Martian meteorites has
challenged this straightforward picture. This thesis integrates
data from
remote sensing, experiments and meteorite studies to put
forward a more nuanced view of the crust that highlights the
importance of various processes that have operated together to
create and modify crustal materials on Mars. First, I show that the
bulk crustal materials in Martian low-albedo regions are more
consistent with basaltic breccia than intact igneous rocks, a
consequence of the intense impact bombardment early in solar system
history. Then, a series of experiments is used to synthesize a
suite a realistic planetary glasses that are used to detect these
phases on Mars and other planets using remotely sensed data. The
results suggest that glasses make up a significant portion of
Martian surface materials, with implications for ancient climate
and preservation of potential biosignatures. Then, a new hypothesis
is put forward to explain the occurrence of hydrated clay minerals
throughout the crust of Mars. Using a suite of experiments and a
parameterized crustal evolution model, I show that a steam or
supercritical atmosphere outgassed from the cooling magma ocean
should have reacted with the primary Martian crust to form a thick
clay-rich layer. This layer is buried early in Martian history, but
survives as a semi-coherent unit in the crust with patchy exposures
of clay-rich rock at the surface. Finally, I consider the
limitations of radiative transfer models that are commonly used to
interpret remotely sensed data in the planetary sciences. These
models are shown to have significant uncertainties, and their
results are better presented in a statistical treatment rather than
using a least squares approach to solve for mineral abundances and
particle sizes.
Advisors/Committee Members: Mustard, John (Advisor), Milliken, Ralph (Reader), Parman, Stephen (Reader), Schultz, Peter (Reader), Elkins-Tanton, Linda (Reader).
Subjects/Keywords: Remote sensing
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APA (6th Edition):
Cannon, K. M. (2017). Nature and Evolution of the Martian Crust and Regolith: New
Insights from Meteorites, Experiments and Remote Sensing. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:733290/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cannon, Kevin Michael. “Nature and Evolution of the Martian Crust and Regolith: New
Insights from Meteorites, Experiments and Remote Sensing.” 2017. Thesis, Brown University. Accessed February 18, 2020.
https://repository.library.brown.edu/studio/item/bdr:733290/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cannon, Kevin Michael. “Nature and Evolution of the Martian Crust and Regolith: New
Insights from Meteorites, Experiments and Remote Sensing.” 2017. Web. 18 Feb 2020.
Vancouver:
Cannon KM. Nature and Evolution of the Martian Crust and Regolith: New
Insights from Meteorites, Experiments and Remote Sensing. [Internet] [Thesis]. Brown University; 2017. [cited 2020 Feb 18].
Available from: https://repository.library.brown.edu/studio/item/bdr:733290/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cannon KM. Nature and Evolution of the Martian Crust and Regolith: New
Insights from Meteorites, Experiments and Remote Sensing. [Thesis]. Brown University; 2017. Available from: https://repository.library.brown.edu/studio/item/bdr:733290/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
The Ohio State University
10.
Kim, Rhae Sung.
Spectral Matching using Bitmap Indices of Spectral
Derivatives for the Analysis of Hyperspectral Imagery.
Degree: MS, Geodetic Science and Surveying, 2011, The Ohio State University
URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1293667753
► Hyperspectral imaging data, such as that recorded by AVIRIS, provides rich information on ground cover materials but seriously complicates their use for classification due to…
(more)
▼ Hyperspectral imaging data, such as that recorded by
AVIRIS, provides rich information on ground cover materials but
seriously complicates their use for classification due to the large
number of spectral bands. A rapid and feasible spectral matching
and mapping algorithm is always desirable, and it is a practical
necessity to improve the processing speed and reduce memory
requirements for analysis. In this thesis, the spectral derivative
has been used to develop a spectral matching algorithm for the
analysis of hyperspectral imaging data, providing surface
mineralogical information using the spectral shape. Particularly,
our spectral matching and mapping algorithm is based on each pixel
in an image and uses whole, spectrally contiguous spectra without
any spectral bands loss. Moreover, unsupervised direct spectral
matching between unknown observed spectra and reference library
spectra is made possible by analyzing the spectral derivative. To
develop a fast and efficient spectral matching and mapping
algorithm, a new bitmap indexing method is proposed, and a simple
bitwise operation is applied in order to find the spectral
similarity. Bitmap indexing of spectral derivatives can reduce the
large volume of hyperspectral imaging data and enables fast library
searching. Therefore, a decrease in the time which is desired for
overall data processing is achieved.AVIRIS data acquired in 1995
over the Cuprite(NV, USA) mining area is used to demonstrate the
developed algorithm and, when compared with two reference mineral
maps, a satisfactory and reliable mineral mapping result is
generated.
Advisors/Committee Members: Yilmaz, Alper (Advisor).
Subjects/Keywords: Remote Sensing
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Export
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APA (6th Edition):
Kim, R. S. (2011). Spectral Matching using Bitmap Indices of Spectral
Derivatives for the Analysis of Hyperspectral Imagery. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1293667753
Chicago Manual of Style (16th Edition):
Kim, Rhae Sung. “Spectral Matching using Bitmap Indices of Spectral
Derivatives for the Analysis of Hyperspectral Imagery.” 2011. Masters Thesis, The Ohio State University. Accessed February 18, 2020.
http://rave.ohiolink.edu/etdc/view?acc_num=osu1293667753.
MLA Handbook (7th Edition):
Kim, Rhae Sung. “Spectral Matching using Bitmap Indices of Spectral
Derivatives for the Analysis of Hyperspectral Imagery.” 2011. Web. 18 Feb 2020.
Vancouver:
Kim RS. Spectral Matching using Bitmap Indices of Spectral
Derivatives for the Analysis of Hyperspectral Imagery. [Internet] [Masters thesis]. The Ohio State University; 2011. [cited 2020 Feb 18].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1293667753.
Council of Science Editors:
Kim RS. Spectral Matching using Bitmap Indices of Spectral
Derivatives for the Analysis of Hyperspectral Imagery. [Masters Thesis]. The Ohio State University; 2011. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1293667753
Kent State University
11.
Ali, Khalid A.
PREDICTION OF WATER QUALITY PARAMETERS FROM VIS-NIR
RADIOMETRY: USING LAKE ERIE AS A NATURAL LABORATORY FOR ANALYSIS OF
CASE 2 WATERS.
Degree: PhD, College of Arts and Sciences / Department of
Geology, 2011, Kent State University
URL: http://rave.ohiolink.edu/etdc/view?acc_num=kent1309980508
► Remote sensing has become very promising in providing temporal and spatial information regarding biogeodynamics in large and open freshwater bodies. For this work, Lake Erie…
(more)
▼ Remote sensing has become very promising in providing
temporal and spatial information regarding biogeodynamics in large
and open freshwater bodies. For this work, Lake Erie was selected
as the site for study because it is a compact region within which
there are a wide variety of optical properties. In this study,
spectral analytical techniques such as wavelets, Artificial Neural
Networks (ANN) and multivariate techniques are applied to a full
range of hyperspectral and multispectral data to better detect,
differentiate among and estimate the concentrations of CPAs in
optically complex environments. These methods produced more robust
algorithms that can retrieve the concentrations of the various
in-water constituents.Principal Component Analysis (PCA) of the
first-derivative transformed hyperspectral data indicated that
phytoplankton and inorganic sediments characterize up to 88% of the
optical variability observed in the WBLE. PCA-based chlorophyll a
and Total Suspended Matter (TSM) models yielded R2 values of 0.70
and 0.75, respectively. The associated percentage RMSE values are
11.5% and 32% for chlorophyll a and TSM, respectively.
Wavelet-based spectral decomposition of first-derivative
transformed hyperspectral data showed that most of the CPAs in the
WBLE are characterized as having medium to high-frequency signals.
The wavelet-based spectral models gave R2 values as high as 0.86
with RMSE = 9.7% for chlorophyll a prediction and R2 values of 0.88
with 15% percent RMSE for TSM. A new regional ANN algorithm is
developed using Full–Resolution MERIS satellite observation for
retrieval of selected CPAs. The ANN-based satellite model was able
to explain 76% and 82% of the chlorophyll a and TSM variability,
respectively, in the WBLE. The RMSE values for these models were
0.58 µg/l and 2.59 mg/l for chlorophyll a and TSM, respectively.
The percentage RMSE in this case is approximately 8.4% and 30.1%
for chlorophyll a and TSM, respectively.Calibration-validation
procedures indicated that the spectral analytical techniques that
employ the full range of spectral data are more stable than
existing bio-optical algorithms. The results from this study and
the conceptual approach may be extended to a variety of optically
complex environments such as coastal areas and other large inland
water bodies.
Advisors/Committee Members: Ortiz, Joseph D. (Committee Chair).
Subjects/Keywords: Remote Sensing
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ali, K. A. (2011). PREDICTION OF WATER QUALITY PARAMETERS FROM VIS-NIR
RADIOMETRY: USING LAKE ERIE AS A NATURAL LABORATORY FOR ANALYSIS OF
CASE 2 WATERS. (Doctoral Dissertation). Kent State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=kent1309980508
Chicago Manual of Style (16th Edition):
Ali, Khalid A. “PREDICTION OF WATER QUALITY PARAMETERS FROM VIS-NIR
RADIOMETRY: USING LAKE ERIE AS A NATURAL LABORATORY FOR ANALYSIS OF
CASE 2 WATERS.” 2011. Doctoral Dissertation, Kent State University. Accessed February 18, 2020.
http://rave.ohiolink.edu/etdc/view?acc_num=kent1309980508.
MLA Handbook (7th Edition):
Ali, Khalid A. “PREDICTION OF WATER QUALITY PARAMETERS FROM VIS-NIR
RADIOMETRY: USING LAKE ERIE AS A NATURAL LABORATORY FOR ANALYSIS OF
CASE 2 WATERS.” 2011. Web. 18 Feb 2020.
Vancouver:
Ali KA. PREDICTION OF WATER QUALITY PARAMETERS FROM VIS-NIR
RADIOMETRY: USING LAKE ERIE AS A NATURAL LABORATORY FOR ANALYSIS OF
CASE 2 WATERS. [Internet] [Doctoral dissertation]. Kent State University; 2011. [cited 2020 Feb 18].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1309980508.
Council of Science Editors:
Ali KA. PREDICTION OF WATER QUALITY PARAMETERS FROM VIS-NIR
RADIOMETRY: USING LAKE ERIE AS A NATURAL LABORATORY FOR ANALYSIS OF
CASE 2 WATERS. [Doctoral Dissertation]. Kent State University; 2011. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1309980508
Cornell University
12.
Tian, Jia.
Optical Radiative Transfer Features of Dry and Wet Soils
.
Degree: 2018, Cornell University
URL: http://hdl.handle.net/1813/59378
► Due to the importance of soil moisture in many fields of study, and given the sparsity of systematic research on radiative transfer features of moist…
(more)
▼ Due to the importance of soil moisture in many fields of study, and given the sparsity of systematic research on radiative transfer features of moist soil in the optical domain, this dissertation focuses on both the spectral reflectance and transmittance features of dry and wet soils. In this work, the spectral reflectance and transmittance of soil are examined. The experiments lead to possible physical explanations for the spectral and directional features of reflectance spectra, and the results suggest how optical and proximal
remote sensing might be useful in observations of soil moisture content. The first experiment considered the change in spectral reflectance of soil samples during evaporative drying. The water absorption band depths at 970 nm and 1160 nm, in near infrared, decreased monotonically as the water content decreased, but they were not detectable in all samples; these water absorption bands will not be generally useful for observing surface soil moisture. In contrast, the band depths of the 1440 nm and 1930 nm absorption features were very responsive to the water content over the entire drying cycle. The change in band depth at 1930 nm was particularly interesting since the direction of the change reversed simultaneous with soil water evaporation rate change. A simple mathematical model suggests that the pattern of change in the band depth is related to the near extinction of light at the band center relative to the band shoulders. The second experiment examined the degree to which light transmitted through quartz sand samples would maintain any directional characteristics. Transmittance decreased monotonically as the illumination angle increase, but slowly at all wavelengths. This indicates that directional radiation transmitted through the sand layer becomes diffuse with a millimeters-thin sand layer. For the saturated samples, the influence of water on light transmittance in the VNIR (350-1300 nm) was the reverse of that in the SWIR (1330-2500 nm) wavelength region. In the VNIR, transmittance increased in the saturated sample relative to the dry sample, while transmittance decreased sharply after 1330 nm, with obvious spectral features characteristic of water absorption. Analysis of transmittance by quartz sand samples suggests that most of the directional variation due to the change in illumination angle can be attributed to surface reflective loss. The implication is that the directional reflection may be treated as a surface phenomenon, with the volume reflectance contributing a diffuse component. The third experiment considered directional spectral reflectance of soil samples under dry and saturated conditions. When the samples were dry, the directional reflectance changed obviously with the phase angle, showing a stronger backward reflectance, while the forward reflectance was generally lower. For saturated soil samples, the directional characteristics of spectral reflectance apparent with dry soil were substantially reduced. In particular, the strong backward scattering weakened. Instead,…
Advisors/Committee Members: McBride, Murray Brian (committeeMember), Stewart, Harry Eaton (committeeMember).
Subjects/Keywords: Remote sensing
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APA (6th Edition):
Tian, J. (2018). Optical Radiative Transfer Features of Dry and Wet Soils
. (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/59378
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Tian, Jia. “Optical Radiative Transfer Features of Dry and Wet Soils
.” 2018. Thesis, Cornell University. Accessed February 18, 2020.
http://hdl.handle.net/1813/59378.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Tian, Jia. “Optical Radiative Transfer Features of Dry and Wet Soils
.” 2018. Web. 18 Feb 2020.
Vancouver:
Tian J. Optical Radiative Transfer Features of Dry and Wet Soils
. [Internet] [Thesis]. Cornell University; 2018. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1813/59378.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Tian J. Optical Radiative Transfer Features of Dry and Wet Soils
. [Thesis]. Cornell University; 2018. Available from: http://hdl.handle.net/1813/59378
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Lethbridge
13.
University of Lethbridge. Faculty of Arts and Science.
Detecting soil erosion in semi-arid Mediterranean environments using simulated EnMAP data
.
Degree: 2014, University of Lethbridge
URL: http://hdl.handle.net/10133/3600
► Soil is an essential nature resource. Management of this resource is vital for sustainability and the continued functioning of earths atmospheric, hydrospheric and lithospheric functioning.…
(more)
▼ Soil is an essential nature resource. Management of this resource is vital for sustainability and the continued functioning of earths atmospheric, hydrospheric and lithospheric functioning. The assessment and continued monitoring of surface soil state provides the information required to effectively manage this resource. This research used a simulated Environmental Mapping and Analysis Program (EnMAP) hyperspectral image cube of an agricultural region in semi- arid Mediterranean Spain to classify soil erosion states. Multiple Endmember Spectral Mixture Analysis (MESMA) was used to derive within pixel fractions of eroded and accumulated soils. A Classification of the soil erosion states using the scene fraction outputs and digital terrain information. The information products generated in this research provided an optimistic outlook for the applicability of the future EnMAP sensor for soil erosion investigations in semi-arid Mediterranean environments. Additionally, this research verifies that the launch of the EnMAP satellite sensor in 2018 will provide the opportunity to further improve the monitoring of earth finite soil resources.
Subjects/Keywords: Remote sensing
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Science, U. o. L. F. o. A. a. (2014). Detecting soil erosion in semi-arid Mediterranean environments using simulated EnMAP data
. (Thesis). University of Lethbridge. Retrieved from http://hdl.handle.net/10133/3600
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Science, University of Lethbridge. Faculty of Arts and. “Detecting soil erosion in semi-arid Mediterranean environments using simulated EnMAP data
.” 2014. Thesis, University of Lethbridge. Accessed February 18, 2020.
http://hdl.handle.net/10133/3600.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Science, University of Lethbridge. Faculty of Arts and. “Detecting soil erosion in semi-arid Mediterranean environments using simulated EnMAP data
.” 2014. Web. 18 Feb 2020.
Vancouver:
Science UoLFoAa. Detecting soil erosion in semi-arid Mediterranean environments using simulated EnMAP data
. [Internet] [Thesis]. University of Lethbridge; 2014. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10133/3600.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Science UoLFoAa. Detecting soil erosion in semi-arid Mediterranean environments using simulated EnMAP data
. [Thesis]. University of Lethbridge; 2014. Available from: http://hdl.handle.net/10133/3600
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
14.
Meerdink, Susan Kay.
Linking Seasonal Foliar Chemistry to VSWIR-TIR Spectroscopy Across California Ecosystems.
Degree: 2014, University of California – eScholarship, University of California
URL: http://www.escholarship.org/uc/item/6d6984b2
► Potential ecological impacts of disturbance, land use, and climate change have driven many studies to evaluate ecosystem functions through the measurement of vegetation biochemical properties…
(more)
▼ Potential ecological impacts of disturbance, land use, and climate change have driven many studies to evaluate ecosystem functions through the measurement of vegetation biochemical properties that provide integral information on nutrient cycling, litter decomposition, and plant productivity. The use of spectroscopy in quantifying vegetation biochemistry shows promise with faster analytical speed than traditional methods. Synergies between the Visible Near Infrared/ Short Wave Infrared (VSWIR) and Thermal Infrared (TIR) spectra for identifying plant species' foliar chemistry have been largely unexplored. Here we evaluate the capability of VSWIR and/or TIR spectra to predict leaf levels of lignin, cellulose, nitrogen, water content, and leaf mass per area. We specifically examined how these predictive relationships might change seasonally and among plant functional types. Lastly we determined whether these relationships between spectra and foliar chemistry could be extended to the reduced spectral resolution available in airborne sensors, including the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS), the Hyperspectral Thermal Emission Spectrometer (HyTES), and the combined AVIRIS and MODIS/ASTER (MASTER) sensors used in the Hyperspectral Infrared Imager (HyspIRI) preparatory flight campaign. In the 2013 spring, summer, and fall seasons, fresh leaves from sixteen common shrub and tree species in California representing three broad plant functional types were sampled from the Sierra Nevada Mountains, the Central Valley at the Sedgwick Reserve, and coastal Santa Barbara. Partial least squares regression (PLSR) analysis was used to relate spectral response at wavelengths from 0.3 - 15.4 µm to laboratory-measured biochemical and biophysical properties. For each component, three PLSR models were fit using different portions of the spectrum: VSWIR (0.3 - 2.5 µm), TIR (2.5 - 15.4 µm), and the full spectrum (0.3 - 15.4 µm). Three additional models were fitted using spectra resampled to AVIRIS (0.4 - 2.5 µm), HyTES (7.5 - 12 µm), and the combined AVIRIS and MASTER (0.38 - 12 µm). The majority of the highest performing laboratory spectra models used either the TIR or full spectrum. When using simulated sensor spectra, the combined AVIRIS and MASTER produced the highest performing models, followed by HyTES. From both laboratory and sensor simulated model results, the combination of VSWIR and TIR increased the R2 value of regression models compared to VSWIR alone, signifying that the inclusion of TIR data would improve predictions of foliar chemistry. We also found that model precision varied by seasons and across plant functional types. Models developed for all seasons resulted in a decreased R2 value, but still had high precision (R2 > 0.85) and accuracy (RMSE < 10%) when predicting cellulose, nitrogen, and water content. These results indicate that the TIR could augment the VSWIR in advancing identification of leaf properties of the world's ecosystems by helping to set the…
Subjects/Keywords: Remote sensing
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APA ·
Chicago ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Meerdink, S. K. (2014). Linking Seasonal Foliar Chemistry to VSWIR-TIR Spectroscopy Across California Ecosystems. (Thesis). University of California – eScholarship, University of California. Retrieved from http://www.escholarship.org/uc/item/6d6984b2
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Meerdink, Susan Kay. “Linking Seasonal Foliar Chemistry to VSWIR-TIR Spectroscopy Across California Ecosystems.” 2014. Thesis, University of California – eScholarship, University of California. Accessed February 18, 2020.
http://www.escholarship.org/uc/item/6d6984b2.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Meerdink, Susan Kay. “Linking Seasonal Foliar Chemistry to VSWIR-TIR Spectroscopy Across California Ecosystems.” 2014. Web. 18 Feb 2020.
Vancouver:
Meerdink SK. Linking Seasonal Foliar Chemistry to VSWIR-TIR Spectroscopy Across California Ecosystems. [Internet] [Thesis]. University of California – eScholarship, University of California; 2014. [cited 2020 Feb 18].
Available from: http://www.escholarship.org/uc/item/6d6984b2.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Meerdink SK. Linking Seasonal Foliar Chemistry to VSWIR-TIR Spectroscopy Across California Ecosystems. [Thesis]. University of California – eScholarship, University of California; 2014. Available from: http://www.escholarship.org/uc/item/6d6984b2
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
15.
Driscoll, Frederick Ralph.
Dynamics of a vertically tethered marine platform.
Degree: Department of Mechanical Engineering, 2017, University of Victoria
URL: https://dspace.library.uvic.ca//handle/1828/8730
► Rapid and high resolution motion and tension measurements were made of a typical vertically tethered system, a caged deep-sea ROV, while it operated at sea.…
(more)
▼ Rapid and high resolution motion and tension measurements were made of a typical vertically tethered system, a caged deep-sea ROV, while it operated at sea. The system is essentially one-dimensional because only the vertical motions of the underwater platform and the ship were coherent, while horizontal motions of the platform were weak and incoherent with any component of motion of the ship. The natural frequency of the system is found to be within the frequency band of ship motion for most of its operating range and the platform response is weakly non-linear. This results in a vertical acceleration of the platform that is up to 2.2 times larger than that of the ship.
Large vertical excursions of the ship produce momentary slack in the tether near the platform. At the instant prior to re-tensioning, the tether and platform are moving apart and upon re-tensioning, the inertia of the platform imparts a large strain—a snap load—in the tether. The resulting strain wave propagates to the surface with the characteristic speed (3870 ms⁻¹) of tensile waves in the tether. An extremely repeatable pattern of echoes is detectable at each end.
Two models, a continuous (closed form) non-dimensional frequency domain model and a discrete finite-element time domain model are developed to represent vertically tethered systems
subject to surface excitation. Both models accurately predicts the measured response, with slightly better accuracy in the discrete version. The continuous model shows that the response is governed by only two non-dimensional parameters. The continuous model is invalid for slack tether and inherently unable to predict snap loads. By slightly increasing the ship motion, the discrete model accurately reproduces the observed snap loads and their characteristics. Discrepancies between the predicted and measured response of the platform bring into question the concepts of a constant drag coefficient and a constant added mass for oscillatory flow around the platform. By adding a simple wake model to account for flow history, the error in the calculated platform motion and tension in the tether were reduced by almost a factor of 2.
Passive ship-mounted and cage-mounted heave compensation systems were investigated with a view to reducing the cage motion and tension in the tether. Both systems were found to be effective and for reasonable parameters, they can reduce the motion of the cage and the tension in the tether by a factor of 2. Addition of either compensation system reduced the natural frequency of the system and extended the operating sea state of a cage ROV system. However, the characteristics of the compensation systems must be carefully chosen or the operational problems will be exacerbated. In particular, the natural frequency of higher modes may enter the waveband for deeper operating depths. During extreme sea states, the cage compensated system eliminated all snap loads.
Advisors/Committee Members: Lueck, R. G. (supervisor), Nahon, Meyer A. (supervisor).
Subjects/Keywords: Remote submersibles; Remote sensing
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APA (6th Edition):
Driscoll, F. R. (2017). Dynamics of a vertically tethered marine platform. (Thesis). University of Victoria. Retrieved from https://dspace.library.uvic.ca//handle/1828/8730
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Driscoll, Frederick Ralph. “Dynamics of a vertically tethered marine platform.” 2017. Thesis, University of Victoria. Accessed February 18, 2020.
https://dspace.library.uvic.ca//handle/1828/8730.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Driscoll, Frederick Ralph. “Dynamics of a vertically tethered marine platform.” 2017. Web. 18 Feb 2020.
Vancouver:
Driscoll FR. Dynamics of a vertically tethered marine platform. [Internet] [Thesis]. University of Victoria; 2017. [cited 2020 Feb 18].
Available from: https://dspace.library.uvic.ca//handle/1828/8730.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Driscoll FR. Dynamics of a vertically tethered marine platform. [Thesis]. University of Victoria; 2017. Available from: https://dspace.library.uvic.ca//handle/1828/8730
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Hawaii – Manoa
16.
Bailey, John E, 1974.
Evolution of dynamic volcanic landscapes.
Degree: PhD, 2009, University of Hawaii – Manoa
URL: http://hdl.handle.net/10125/11637
Electronic reproduction.
Also available by subscription via World Wide Web
xiv, 246 leaves, bound ill. (chiefly col.), maps 29 cm
Subjects/Keywords: Volcanism – Remote sensing; Geomorphology – Remote sensing
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APA (6th Edition):
Bailey, John E, 1. (2009). Evolution of dynamic volcanic landscapes. (Doctoral Dissertation). University of Hawaii – Manoa. Retrieved from http://hdl.handle.net/10125/11637
Chicago Manual of Style (16th Edition):
Bailey, John E, 1974. “Evolution of dynamic volcanic landscapes.” 2009. Doctoral Dissertation, University of Hawaii – Manoa. Accessed February 18, 2020.
http://hdl.handle.net/10125/11637.
MLA Handbook (7th Edition):
Bailey, John E, 1974. “Evolution of dynamic volcanic landscapes.” 2009. Web. 18 Feb 2020.
Vancouver:
Bailey, John E 1. Evolution of dynamic volcanic landscapes. [Internet] [Doctoral dissertation]. University of Hawaii – Manoa; 2009. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10125/11637.
Council of Science Editors:
Bailey, John E 1. Evolution of dynamic volcanic landscapes. [Doctoral Dissertation]. University of Hawaii – Manoa; 2009. Available from: http://hdl.handle.net/10125/11637
University of KwaZulu-Natal
17.
[No author].
Assessing multi-temporal remote sensing imagery for discriminating savannah tree species.
Degree: 2015, University of KwaZulu-Natal
URL: http://hdl.handle.net/10413/12245
► The advent of new multispectral sensors such as Worldview-2 with very high spatial resolution (VHR) has presented new opportunities for mapping vegetation at species-level. However…
(more)
▼ The advent of new multispectral sensors such as Worldview-2 with very high spatial resolution (VHR) has presented new opportunities for mapping vegetation at species-level. However the use of VHR data for tree species mapping is often confronted with issues of within-canopy spectral variability. The prevailing intraspecies variability in southern African savannah limits our ability to accurately map the distribution of tree species. These challenges necessitate the development of new methods for tree species mapping. This study investigated i) the utility of object-based image analysis (OBIA) for tree species mapping in the savannah environment using Worldview-2 image, ii) the spectral capability of WV-2 for species mapping and iii) the ability of multi-temporal data to enhance spectral separability between tree species in southern African savannah. Using Random Forest (RF), the study could not establish any statistically significant difference between OBIA and pixel-based approach towards savannah tree species classification (zobt < zcrit). However OBIA successfully improved classification accuracy of Sclerocharya birrea and Acacia nigrescens which makes it an appropriate alternative for classifying big trees in the savannah environment using WV-2 image.
Moreover, the spectral configuration of WV-2 with the inclusion of yellow and red-edge bands enhanced the discriminatory power of WV-2 sensor. The WV-2 image achieved higher classification accuracy (74.5% with object-based and 76.4% with pixel-based) than simulated IKONOS image (58.6% with object-based and 67.9% with pixel-based). The difference was statistically significant (zobt > zcrit). The use of multi-temporal data enhanced spectral variability between species and achieved the highest classification accuracy (80.4%) than March and April dates (72.9% and 76.4%, respectively). Multi-temporal data mitigated the spectral confusion between Sclerocharya birrea and Dichrostachys cinerea and achieved producer’s and user’s accuracy of above 60% for these tree species. The results highlight the opportunities available to biodiversity managers due to advances in
remote sensing technology. The ability to accurately map tree species is the key element in the management of savannah biodiversity.
Advisors/Committee Members: Mutanga, Onisimo (advisor), Mathieu, Renaud (advisor), Cho, Moses Azong (advisor).
Subjects/Keywords: Trees – Remote sensing.;
Savannas – Remote sensing.;
Geography.
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APA (6th Edition):
author], [. (2015). Assessing multi-temporal remote sensing imagery for discriminating savannah tree species.
(Thesis). University of KwaZulu-Natal. Retrieved from http://hdl.handle.net/10413/12245
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
author], [No. “Assessing multi-temporal remote sensing imagery for discriminating savannah tree species.
” 2015. Thesis, University of KwaZulu-Natal. Accessed February 18, 2020.
http://hdl.handle.net/10413/12245.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
author], [No. “Assessing multi-temporal remote sensing imagery for discriminating savannah tree species.
” 2015. Web. 18 Feb 2020.
Vancouver:
author] [. Assessing multi-temporal remote sensing imagery for discriminating savannah tree species.
[Internet] [Thesis]. University of KwaZulu-Natal; 2015. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10413/12245.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
author] [. Assessing multi-temporal remote sensing imagery for discriminating savannah tree species.
[Thesis]. University of KwaZulu-Natal; 2015. Available from: http://hdl.handle.net/10413/12245
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Oregon State University
18.
Boeke, Robyn C.
Biases in droplet radii and optical depths of marine stratocumulus retrieved from MODIS imagery.
Degree: MS, Atmospheric Sciences, 2009, Oregon State University
URL: http://hdl.handle.net/1957/11913
► The 2007 Intergovernmental Panel on Climate Change assessment established that the effect of clouds on climate contributes the largest uncertainty in predicting the future climate.…
(more)
▼ The 2007 Intergovernmental Panel on Climate Change assessment established
that the effect of clouds on climate contributes the largest uncertainty in predicting the
future climate. Satellite observations provide an opportunity for learning about the
behavior of clouds. This thesis seeks to assess the accuracy of cloud properties
retrieved from multispectral satellite imagery and test the usefulness of satellite data in
verifying conclusions based on aircraft observations that marine stratus appear to be
formed through the nearly adiabatic ascent of moist air. Retrievals of cloud optical
depth, a measure of cloud thickness, using 0.64-μm reflectances and droplet radii
using separately 1.6, 2.1, and 3.7-μm reflectances were obtained with the MODerateresolution
Imaging Spectroradiometer (MODIS). Owing to different amounts of
absorption by liquid water in the near infrared, with the least at 1.6 μm and the most at
3.7 μm, the growth of droplet radius with cloud thickness should result in the largest
droplet radii retrieved using the 3.7-μm reflectances and the smallest using 1.6-μm
reflectances. Droplet radii retrieved using the 2.1-μm reflectances, however, are often
the largest, and those retrieved using 3.7-μm reflectances are often the smallest. In
addition aircraft observations indicate that the relationships between droplet radius, re,
and optical depth, t, d ln r / d lnt e ,should be approximately equal to 0.2 for marine
stratocumulus. While satellite observations in optically thick, overcast regions yielded
d ln re/d ln t consistent with this result, retrievals for regions with broken clouds often
yielded d ln r / d lnt e substantially smaller than 0.2.
Clouds often exhibit large horizontal and vertical variability. In this thesis a
simple radiative transfer model was used to predict reflectances at visible and near
infrared wavelengths for clouds formed through the adiabatic ascent of moist air, and
then a retrieval scheme based on vertically uniform clouds was used to determine if
the departures from the behavior expected for adiabatic clouds might be caused by the
assumption of spatial uniformity used in the retrievals. The simulations indicated that
at all cloud thicknesses the progression of droplet size using 1.6, 2.1, and 3.7-μm
reflectances followed that suggested by the absorptive properties of liquid water. The
simulation also indicated, however, contrary to the observations, that when the clouds
were optically thin, d ln r / d lnt e should be greater than 0.2, the value expected for
the adiabatic ascent of moist air.
The simulation was adapted to account for the effects of horizontal variations
within clouds. Each 1-km pixel was given a subpixel distribution of optical depths
based on a gamma distribution with mean taken from MODIS pixel-scale optical
depths and variance given by Kato et al. (2006), obtained from Large Eddy
Simulations of marine stratocumulus. Each subpixel was allowed to develop
vertically following the adiabatic ascent of moist air. The average of…
Advisors/Committee Members: Coakley, James A. Jr. (advisor), Skyllingstad, Eric (committee member).
Subjects/Keywords: Remote Sensing; Clouds – Observations – Remote sensing
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APA (6th Edition):
Boeke, R. C. (2009). Biases in droplet radii and optical depths of marine stratocumulus retrieved from MODIS imagery. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/11913
Chicago Manual of Style (16th Edition):
Boeke, Robyn C. “Biases in droplet radii and optical depths of marine stratocumulus retrieved from MODIS imagery.” 2009. Masters Thesis, Oregon State University. Accessed February 18, 2020.
http://hdl.handle.net/1957/11913.
MLA Handbook (7th Edition):
Boeke, Robyn C. “Biases in droplet radii and optical depths of marine stratocumulus retrieved from MODIS imagery.” 2009. Web. 18 Feb 2020.
Vancouver:
Boeke RC. Biases in droplet radii and optical depths of marine stratocumulus retrieved from MODIS imagery. [Internet] [Masters thesis]. Oregon State University; 2009. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1957/11913.
Council of Science Editors:
Boeke RC. Biases in droplet radii and optical depths of marine stratocumulus retrieved from MODIS imagery. [Masters Thesis]. Oregon State University; 2009. Available from: http://hdl.handle.net/1957/11913
Oregon State University
19.
Ndzeidze, Stephen Koghan.
Detecting medusahead (Taeniatherum caput-medusae (L.) Nevski) using high frequency, sequential, globally positioned digital images.
Degree: PhD, Rangeland Ecology and Management, 2011, Oregon State University
URL: http://hdl.handle.net/1957/23021
► Invasive plant species are expanding and transforming vegetative communities across Oregon and throughout the United States. Over the past three decades remote sensing, geographic information…
(more)
▼ Invasive plant species are expanding and transforming vegetative communities across Oregon and throughout the United States. Over the past three decades
remote sensing, geographic information system (GIS), and Global Positioning System (GPS) technologies have been integrated to detect and map the distribution of noxious rangeland plants. This study developed low-cost protocols to detect and map Medusahead (Taeniatherum caput-medusae (L.) Nevski) weed infestations using GPS loggers to track aircraft/camera position, altitude, and bearing, as well as Aerial Image Positioning Tool software to geographically rectify and project each aerial image. We then mapped the extent of medusahead in target areas and evaluated patterns of infestation. Flying in a single engine fixed-wing aircraft, images were collected every five seconds, with a total of 10,362 images obtained. All of the aerial images were processed and, on average, 23.9 % of the area was classified as medusahead infested, with 76.1 % without infestation. Each image covered 215 ha (531 acres), with 60% overlap, at a cost of $ 0.54/km². Our study also employed mobile mapping technology to map medusahead on the ground by digitizing infestations using a laptop computer equipped with a GPS antenna and GIS software. Mobile mapping was also done from aircraft, but yielded coarser infestation maps, as the observation distance was greater. These maps covered the full study area. Aerial reconnaissance and mobile survey is cost effective, because thousands of digital images were collected, automatically positioned, and stored.
Advisors/Committee Members: Johnson, Douglas (advisor), Kimerling, Jon (committee member).
Subjects/Keywords: Remote Sensing; Medusahead wildrye – Remote sensing
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APA (6th Edition):
Ndzeidze, S. K. (2011). Detecting medusahead (Taeniatherum caput-medusae (L.) Nevski) using high frequency, sequential, globally positioned digital images. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/23021
Chicago Manual of Style (16th Edition):
Ndzeidze, Stephen Koghan. “Detecting medusahead (Taeniatherum caput-medusae (L.) Nevski) using high frequency, sequential, globally positioned digital images.” 2011. Doctoral Dissertation, Oregon State University. Accessed February 18, 2020.
http://hdl.handle.net/1957/23021.
MLA Handbook (7th Edition):
Ndzeidze, Stephen Koghan. “Detecting medusahead (Taeniatherum caput-medusae (L.) Nevski) using high frequency, sequential, globally positioned digital images.” 2011. Web. 18 Feb 2020.
Vancouver:
Ndzeidze SK. Detecting medusahead (Taeniatherum caput-medusae (L.) Nevski) using high frequency, sequential, globally positioned digital images. [Internet] [Doctoral dissertation]. Oregon State University; 2011. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1957/23021.
Council of Science Editors:
Ndzeidze SK. Detecting medusahead (Taeniatherum caput-medusae (L.) Nevski) using high frequency, sequential, globally positioned digital images. [Doctoral Dissertation]. Oregon State University; 2011. Available from: http://hdl.handle.net/1957/23021
20.
Zhou, Qiang.
Disaggregating tree and grass phenology in tropical savannas.
Degree: 2015, The University of North Dakota
URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3724867
► Savannas are mixed tree-grass systems and as one of the world's largest biomes represent an important component of the Earth system affecting water and…
(more)
▼ Savannas are mixed tree-grass systems and as one of the world's largest biomes represent an important component of the Earth system affecting water and energy balances, carbon sequestration and biodiversity as well as supporting large human populations. Savanna vegetation structure and its distribution, however, may change because of major anthropogenic disturbances from climate change, wildfire, agriculture, and livestock production. The overstory and understory may have different water use strategies, different nutrient requirements and have different responses to fire and climate variation. The accurate measurement of the spatial distribution and structure of the overstory and understory are essential for understanding the savanna ecosystem. This project developed a workflow for separating the dynamics of the overstory and understory fractional cover in savannas at the continental scale (Australia, South America, and Africa). Previous studies have successfully separated the phenology of Australian savanna vegetation into persistent and seasonal greenness using time series decomposition, and into fractions of photosynthetic vegetation (PV), non-photosynthetic vegetation (NPV) and bare soil (BS) using linear unmixing. This study combined these methods to separate the understory and overstory signal in both the green and senescent phenological stages using remotely sensed imagery from the MODIS (MODerate resolution Imaging Spectroradiometer) sensor. The methods and parameters were adjusted based on the vegetation variation. The workflow was first tested at the Australian site. Here the PV estimates for overstory and understory showed best performance, however NPV estimates exhibited spatial variation in validation relationships. At the South American site (Cerrado), an additional method based on frequency unmixing was developed to separate green vegetation components with similar phenology. When the decomposition and frequency methods were compared, the frequency method was better for extracting the green tree phenology, but the original decomposition method was better for retrieval of understory grass phenology. Both methods, however, were less accurate than in the Cerrado than in Australia due to intermingling and intergrading of grass and small woody components. Since African savanna trees are predominantly deciduous, the frequency method was combined with the linear unmixing of fractional cover to attempt to separate the relatively similar phenology of deciduous trees and seasonal grasses. The results for Africa revealed limitations associated with both methods. There was spatial and seasonal variation in the spectral indices used to unmix fractional cover resulting in poor validation for NPV in particular. The frequency analysis revealed significant phase variation indicative of different phenology, but these could not be clearly ascribed to separate grass and tree components. Overall findings indicate that site-specific variation and vegetation structure and…
Subjects/Keywords: Ecology; Remote sensing
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APA (6th Edition):
Zhou, Q. (2015). Disaggregating tree and grass phenology in tropical savannas. (Thesis). The University of North Dakota. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3724867
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Zhou, Qiang. “Disaggregating tree and grass phenology in tropical savannas.” 2015. Thesis, The University of North Dakota. Accessed February 18, 2020.
http://pqdtopen.proquest.com/#viewpdf?dispub=3724867.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Zhou, Qiang. “Disaggregating tree and grass phenology in tropical savannas.” 2015. Web. 18 Feb 2020.
Vancouver:
Zhou Q. Disaggregating tree and grass phenology in tropical savannas. [Internet] [Thesis]. The University of North Dakota; 2015. [cited 2020 Feb 18].
Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3724867.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Zhou Q. Disaggregating tree and grass phenology in tropical savannas. [Thesis]. The University of North Dakota; 2015. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3724867
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Dalhousie University
21.
Jahncke, Raymond.
MAPPING WETLANDS IN NOVA SCOTIA WITH MULTI-BEAM RADARSAT-2
POLARIMETRIC SAR, OPTICAL SATELLITE IMAGERY, AND ELEVATION
DATA.
Degree: Master of Environmental Studies, School for Resource & Environmental
Studies, 2016, Dalhousie University
URL: http://hdl.handle.net/10222/71619
► Nova Scotia introduced a new wetland policy in 2011 which included a goal to have no net loss of wetlands. In order to meet this…
(more)
▼ Nova Scotia introduced a new wetland policy in 2011
which included a goal to have no net loss of wetlands. In order to
meet this goal, the Nova Scotia government has committed to
updating the provincial wetland inventory. The objective of this
study will be to assess the accuracy of wetland mapping using
remote sensing processes based on RADARSAT-2 polarimetric SAR
images, optical imagery, and elevation data.
RADARSAT-2
polarimetric SAR images were acquired between 2010 and 2013 over an
area southwest of Halifax. Two sources of optical imagery
(QuickBird and Landsat 8) and two sources of terrain information
(lidar and the provincial government contours) were combined in
various arrangements with the radar. A non-parametric supervised
Random Forests classifier was applied to the different data
combinations. An accuracy assessment showed that using RADARSAT-2
combined with either source of data improved the accuracy of
wetland identification over the existing inventory.
Advisors/Committee Members: School for Resource & Environmental Studies (department), Master of Environmental Studies (degree), n/a (external-examiner), Kate Sherren (graduate-coordinator), Randy Milton (thesis-reader), Danika van Proosdij (thesis-reader), Peter Tyedmers (thesis-reader), Peter Bush (thesis-supervisor), Peter Duinker (thesis-supervisor), Not Applicable (ethics-approval), Not Applicable (manuscripts), Not Applicable (copyright-release).
Subjects/Keywords: wetlands; remote sensing
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APA (6th Edition):
Jahncke, R. (2016). MAPPING WETLANDS IN NOVA SCOTIA WITH MULTI-BEAM RADARSAT-2
POLARIMETRIC SAR, OPTICAL SATELLITE IMAGERY, AND ELEVATION
DATA. (Masters Thesis). Dalhousie University. Retrieved from http://hdl.handle.net/10222/71619
Chicago Manual of Style (16th Edition):
Jahncke, Raymond. “MAPPING WETLANDS IN NOVA SCOTIA WITH MULTI-BEAM RADARSAT-2
POLARIMETRIC SAR, OPTICAL SATELLITE IMAGERY, AND ELEVATION
DATA.” 2016. Masters Thesis, Dalhousie University. Accessed February 18, 2020.
http://hdl.handle.net/10222/71619.
MLA Handbook (7th Edition):
Jahncke, Raymond. “MAPPING WETLANDS IN NOVA SCOTIA WITH MULTI-BEAM RADARSAT-2
POLARIMETRIC SAR, OPTICAL SATELLITE IMAGERY, AND ELEVATION
DATA.” 2016. Web. 18 Feb 2020.
Vancouver:
Jahncke R. MAPPING WETLANDS IN NOVA SCOTIA WITH MULTI-BEAM RADARSAT-2
POLARIMETRIC SAR, OPTICAL SATELLITE IMAGERY, AND ELEVATION
DATA. [Internet] [Masters thesis]. Dalhousie University; 2016. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10222/71619.
Council of Science Editors:
Jahncke R. MAPPING WETLANDS IN NOVA SCOTIA WITH MULTI-BEAM RADARSAT-2
POLARIMETRIC SAR, OPTICAL SATELLITE IMAGERY, AND ELEVATION
DATA. [Masters Thesis]. Dalhousie University; 2016. Available from: http://hdl.handle.net/10222/71619
University of Edinburgh
22.
Trigwell, Robert.
Quantifying atmospheric pollution across north america from boreal forest fires: a combined analysis of atmospheric modelling and ground-based remote sensing.
Degree: 2011, University of Edinburgh
URL: http://hdl.handle.net/1842/5177
► This paper describes the interpretation of the 2010 summer LIDAR observations from Dal- housie University, Nova Scotia. The GEOS-Chem global 3D chemistry transport model was…
(more)
▼ This paper describes the interpretation of the 2010 summer LIDAR observations from Dal-
housie University, Nova Scotia. The GEOS-Chem global 3D chemistry transport model was used to identify the chemical and optical properties of aerosols passing over the LIDAR site. The project evaluated the modelled aerosol in terms of altitude, thickness,
and backscatter in comparison to the plume detected by the LIDAR. The HYSPLIT langrangian particle transfer model was used to identify the source regions of the aerosols detected based on modelling the plumes backwards trajectory. Previous studies suggested that biomass burning aerosols were the predominant source of observed variability during the Canadian summers [McKendry et al., 2010, Duck et al., 2007]. These findings were supported by this research. Additionally anthropogenic contributions from the eastern United States appeared to be a major contributor in the bottom 2km of the troposphere, with at times contributing up to 75% of the net aerosol concentration and thus 75% of the backscatter.
Advisors/Committee Members: Palmer, Paul.
Subjects/Keywords: LIDAR; Remote Sensing
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Manager
APA (6th Edition):
Trigwell, R. (2011). Quantifying atmospheric pollution across north america from boreal forest fires: a combined analysis of atmospheric modelling and ground-based remote sensing. (Thesis). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/5177
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Trigwell, Robert. “Quantifying atmospheric pollution across north america from boreal forest fires: a combined analysis of atmospheric modelling and ground-based remote sensing.” 2011. Thesis, University of Edinburgh. Accessed February 18, 2020.
http://hdl.handle.net/1842/5177.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Trigwell, Robert. “Quantifying atmospheric pollution across north america from boreal forest fires: a combined analysis of atmospheric modelling and ground-based remote sensing.” 2011. Web. 18 Feb 2020.
Vancouver:
Trigwell R. Quantifying atmospheric pollution across north america from boreal forest fires: a combined analysis of atmospheric modelling and ground-based remote sensing. [Internet] [Thesis]. University of Edinburgh; 2011. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1842/5177.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Trigwell R. Quantifying atmospheric pollution across north america from boreal forest fires: a combined analysis of atmospheric modelling and ground-based remote sensing. [Thesis]. University of Edinburgh; 2011. Available from: http://hdl.handle.net/1842/5177
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Florida Atlantic University
23.
Forbes, Dolores Jane.
Statistical Correlation between Economic Activity and DMSP-OLS Night Light Images in Florida.
Degree: 2011, Florida Atlantic University
URL: http://pqdtopen.proquest.com/#viewpdf?dispub=1504157
► The Defense Meteorological Satellite Program (DMSP) Optical Line Scan (OLS) instruments collect data from an altitude of approximately 830km above the surface of the…
(more)
▼ The Defense Meteorological Satellite Program (DMSP) Optical Line Scan (OLS) instruments collect data from an altitude of approximately 830km above the surface of the Earth. The night light data from these instruments has been shown to correlate by lit area with national level Gross Domestic Product (GDP) and to correlate with GDP at the State level by total radiance value. Very strong correlation is found between the night light data at a new, larger scale, the Metropolitan Statistical Area (MSA) within the state of Florida. Additional statistical analysis was performed to determine which industries within each MSA explain the greatest amount of variance in the night light data. Industrial variables exhibited strong multi-collinearity. It is therefore impossible to determine which industries explain the greatest variance in the night light image data.
Subjects/Keywords: Geography; Remote Sensing
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APA (6th Edition):
Forbes, D. J. (2011). Statistical Correlation between Economic Activity and DMSP-OLS Night Light Images in Florida. (Thesis). Florida Atlantic University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=1504157
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Forbes, Dolores Jane. “Statistical Correlation between Economic Activity and DMSP-OLS Night Light Images in Florida.” 2011. Thesis, Florida Atlantic University. Accessed February 18, 2020.
http://pqdtopen.proquest.com/#viewpdf?dispub=1504157.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Forbes, Dolores Jane. “Statistical Correlation between Economic Activity and DMSP-OLS Night Light Images in Florida.” 2011. Web. 18 Feb 2020.
Vancouver:
Forbes DJ. Statistical Correlation between Economic Activity and DMSP-OLS Night Light Images in Florida. [Internet] [Thesis]. Florida Atlantic University; 2011. [cited 2020 Feb 18].
Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=1504157.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Forbes DJ. Statistical Correlation between Economic Activity and DMSP-OLS Night Light Images in Florida. [Thesis]. Florida Atlantic University; 2011. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=1504157
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of South Carolina
24.
Peneva-Reed, Elitsa I.
Linking local knowledge and satellite-derived land-use/land-cover change information in Krabi province, Thailand.
Degree: 2012, University of South Carolina
URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3488391
► This study was designed to gain an understanding of the linkage between development and sustainability of mangrove forest conversion in three coastal communities in…
(more)
▼ This study was designed to gain an understanding of the linkage between development and sustainability of mangrove forest conversion in three coastal communities in Thailand. It presents a methodology that could potentially aid coastal communities in determining sustainable land use conversion approaches by considering the viewpoint of villagers. A remote sensing analysis of Landsat satellite images from 1989, 2001 and 2007 showed the results of a moderate, but sustained shrimp farming industry that only partially exploited mangrove forests. The three villages experienced a range of changes in mangrove forest area. The villagers' perceptions (collected through field surveys) did not match the results from the remote sensing analysis and varied significantly. A logit multiple regression model was utilized to study the factors influencing whether villagers' estimates agreed or disagreed with the remote sensing analysis. Results showed that the only variables statistically significant at the 0.10 level were age, occupation, and proximity to the mangrove resource. There is a widespread belief that one of the main negative effects of the development of shrimp farms is the pollution of water and, as a consequence, the reduction of wild catch. In this study, a majority of fishing households reported a reduction in wild catch, with nearly all attributing it to shrimp farms. A relatively small number of households noted positive effects from shrimp farming and listed these as an increase of income as a result of working at shrimp farms. The most common negative effects identified by the locals were water pollution, followed by a decrease in wild catch, and an increase in the number of mosquitoes. Although shrimp farm developers promised many benefits from this enterprise, very few were realized by the villagers. Integrating information from household surveys with data on land-cover change derived from remote sensing improves our understanding of the causes and processes of land cover change, and the perceptions of such changes. Integrating these two data sources illustrated that while shrimp farms did not have very many positive effects on the villagers, they were not as directly harmful to the mangrove forests as many believed.
Subjects/Keywords: Geography; Remote Sensing
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APA ·
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APA (6th Edition):
Peneva-Reed, E. I. (2012). Linking local knowledge and satellite-derived land-use/land-cover change information in Krabi province, Thailand. (Thesis). University of South Carolina. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3488391
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Peneva-Reed, Elitsa I. “Linking local knowledge and satellite-derived land-use/land-cover change information in Krabi province, Thailand.” 2012. Thesis, University of South Carolina. Accessed February 18, 2020.
http://pqdtopen.proquest.com/#viewpdf?dispub=3488391.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Peneva-Reed, Elitsa I. “Linking local knowledge and satellite-derived land-use/land-cover change information in Krabi province, Thailand.” 2012. Web. 18 Feb 2020.
Vancouver:
Peneva-Reed EI. Linking local knowledge and satellite-derived land-use/land-cover change information in Krabi province, Thailand. [Internet] [Thesis]. University of South Carolina; 2012. [cited 2020 Feb 18].
Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3488391.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Peneva-Reed EI. Linking local knowledge and satellite-derived land-use/land-cover change information in Krabi province, Thailand. [Thesis]. University of South Carolina; 2012. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3488391
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Stanford University
25.
Gomez, Carmen Teresa.
Reservoir characterization combining elastic velocities and electrical resistivity measurements.
Degree: 2009, Stanford University
URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3382961
► The elastic and electric parameters of rocks that can be obtained from seismic and electromagnetic data depend on porosity, texture, mineralogy, and fluid. However,…
(more)
▼ The elastic and electric parameters of rocks that can be obtained from seismic and electromagnetic data depend on porosity, texture, mineralogy, and fluid. However, seismic data seldom allow us to accurately quantify hydrocarbon saturation. On the other hand, in the case of common reservoir rocks (i.e., sandstones and carbonates), resistivity strongly depends on porosity and saturation. Therefore, the recent progress of controlled-source-electromagnetic (CSEM) methods opens new possibilities in identifying and quantifying potential hydrocarbon reservoirs, although its resolution is much lower than that of seismic data. Hence, a combination of seismic and CSEM data arguably offers a powerful means of finally resolving the problem of remote sensing of saturation. The question is how to combine the two data sources (elastic data and electrical resistivity data) to better characterize a reservoir. To address this question, we introduce the concept of P-wave impedance and resistivity templates as a tool to estimate porosity and saturation from well log data. Adequate elastic and resistivity models, according to the lithology, cementation, fluid properties must be chosen to construct these templates. These templates can be upscaled to seismic and CSEM scale using Backus average for seismic data, and total resistance for CSEM data. We also measured velocity and resistivity in Fontainebleau samples in the laboratory. Fontainebleau formation corresponds to clean sandstones (i.e., low clay content). We derived an empirical relation between these P-wave velocity and resistivity at 40MPa effective pressure, which is around 3 km depth at normal pressure gradients. We were not able to test if this relation could be used at well or field data scales (once appropriate upscaling was applied), since we did not have a field dataset over a stiff sandstone reservoir. A relationship between velocity and resistivity laboratory data was also found for a set of carbonates. This expression was quadratic, and not linear as in the case of Fontainebleau sandstones. There are other factors that influence this relationship in the case of these carbonates, which include pore geometry, and amount of micritic cement. We observed that the expression is almost linear, but it deviates as we approach lower resistivities. This deviation can be explained by the presence of stiff pores such as moldic or intra-granular pores, which causes high velocity but low resistivity values when water-saturated. In the same way, the effect of micrite cement on velocity is stronger than its effect on resistivity, and that also is responsible for some of the scatter that we observe. We also modeled both velocity and resistivity using self-consistent approximation with the same pore or inclusion geometries in both carbonate and sandstone laboratory datasets. In the case of carbonates, we found that we had to include needle-like pores to explain the low resistivity but high velocities. Needle is one of the geometries that allow us…
Subjects/Keywords: Geophysics; Remote Sensing
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APA (6th Edition):
Gomez, C. T. (2009). Reservoir characterization combining elastic velocities and electrical resistivity measurements. (Thesis). Stanford University. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3382961
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Gomez, Carmen Teresa. “Reservoir characterization combining elastic velocities and electrical resistivity measurements.” 2009. Thesis, Stanford University. Accessed February 18, 2020.
http://pqdtopen.proquest.com/#viewpdf?dispub=3382961.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gomez, Carmen Teresa. “Reservoir characterization combining elastic velocities and electrical resistivity measurements.” 2009. Web. 18 Feb 2020.
Vancouver:
Gomez CT. Reservoir characterization combining elastic velocities and electrical resistivity measurements. [Internet] [Thesis]. Stanford University; 2009. [cited 2020 Feb 18].
Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3382961.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gomez CT. Reservoir characterization combining elastic velocities and electrical resistivity measurements. [Thesis]. Stanford University; 2009. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3382961
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
The University of Arizona
26.
Demaria, Eleonora M. C.
Evaluating the impacts of input and parameter uncertainty on streamflow simulations in large under-instrumented basins.
Degree: 2010, The University of Arizona
URL: http://pqdtopen.proquest.com/#viewpdf?dispub=3403310
► In data-poor regions around the world, particularly in less-privileged countries, hydrologists cannot always take advantage of available hydrological models to simulate a hydrological system…
(more)
▼ In data-poor regions around the world, particularly in less-privileged countries, hydrologists cannot always take advantage of available hydrological models to simulate a hydrological system due to the lack of reliable measurements of hydrological variables, in particular rainfall and streamflows, needed to implement and evaluate these models. Rainfall estimates obtained with remotely deployed sensors constitute an excellent source of precipitation for these basins, however they are prone to errors that can potentially affect hydrologic simulations. Concurrently, limited access to streamflow measurements does not allow a detailed representation of the system’s structure through parameter estimation techniques. This dissertation presents multiple studies that evaluate the usefulness of remotely sensed products for different hydrological applications and the sensitivity of simulated streamflow to parameter uncertainty across basins with different hydroclimatic characteristics with the ultimate goal of increasing the applicability of land surface models in ungauged basins, particularly in South America. Paper 1 presents a sensitivity analysis of daily simulated streamflows to changes in model parameters along a hydroclimatic gradient. Parameters controlling the generation of surface and subsurface flow were targeted for the study. Results indicate that the sensitivity is strongly controlled by climate and that a more parsimonious version of the model could be implemented. Paper 2 explores how errors in satellite-estimated precipitation, due to infrequent satellite measurements, propagate through the simulation of a basin's hydrological cycle and impact the characteristics of peak streamflows within the basin. Findings indicate that nonlinearities in the hydrological cycle can introduce bias in simulated streamflows with error-corrupted precipitation. They also show that some characteristics of peak discharges are not conditioned by errors in satellite-estimated precipitation at a daily time step. Paper 3 evaluates the dominant sources of error in three satellite products when representing convective storms and how shifts in the location of the storm affect simulated peak streamflows in the basin. Results indicate that satellite products show some deficiencies retrieving convective processes and that a ground bias correction can mitigate these deficiencies but without sacrificing the potential for real-time hydrological applications. Finally, spatially shifted precipitation fields affect the magnitude of the peaks, however, its impact on the timing of the peaks is dampened out by the system's response at a daily time scale.
Subjects/Keywords: Hydrology; Remote Sensing
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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APA (6th Edition):
Demaria, E. M. C. (2010). Evaluating the impacts of input and parameter uncertainty on streamflow simulations in large under-instrumented basins. (Thesis). The University of Arizona. Retrieved from http://pqdtopen.proquest.com/#viewpdf?dispub=3403310
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Demaria, Eleonora M C. “Evaluating the impacts of input and parameter uncertainty on streamflow simulations in large under-instrumented basins.” 2010. Thesis, The University of Arizona. Accessed February 18, 2020.
http://pqdtopen.proquest.com/#viewpdf?dispub=3403310.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Demaria, Eleonora M C. “Evaluating the impacts of input and parameter uncertainty on streamflow simulations in large under-instrumented basins.” 2010. Web. 18 Feb 2020.
Vancouver:
Demaria EMC. Evaluating the impacts of input and parameter uncertainty on streamflow simulations in large under-instrumented basins. [Internet] [Thesis]. The University of Arizona; 2010. [cited 2020 Feb 18].
Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3403310.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Demaria EMC. Evaluating the impacts of input and parameter uncertainty on streamflow simulations in large under-instrumented basins. [Thesis]. The University of Arizona; 2010. Available from: http://pqdtopen.proquest.com/#viewpdf?dispub=3403310
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Georgia
27.
Marathe, Apurva.
Reforesting Mumbai: an analysis of land-use and land-cover change using satellite remote sensing and GIS.
Degree: MS, Geography, 2008, University of Georgia
URL: http://purl.galileo.usg.edu/uga_etd/marathe_apurva_a_200805_ms
► In this paper land-use land-cover change dynamics was investigated by the combined use of satellite remote sensing and geographical information systems (GIS). The objective of…
(more)
▼ In this paper land-use land-cover change dynamics was investigated by the combined use of satellite
remote sensing and geographical information systems (GIS). The objective of this paper was to determine transition among land-use land-cover types in Mumbai over a period of 28 years from 1973 to 2001, and to access the reasons for this change. Using a Landsat Multi Spectral Scanner (MSS), Landsat Thematic Mapper (TM) and Landsat Enhanced Thematic Mapper Plus (ETM+) from 1973, 1992 and 2001 respectively, the three images were classified into six land-use land-cover types: water, wetland, forest, bare land, built-up land and high density built-up land. An accuracy assessment was performed, transition matrices were created and maps were produced depicting the change in all the classes in the three years. The reasons for the change were also analyzed. It was seen that significant changes in land-use land-cover occurred within the area over the study period. As expected, the area showed significant increase in the built-up and high density built-up area. The results also showed change in the land-use land-cover from built-up area to forest area showing the effects of reforestation taking place in the city. The study demonstrates that the integration of
remote sensing and GIS was an effective approach for analyzing the land-use land-cover change process.
Advisors/Committee Members: Thomas Hodler.
Subjects/Keywords: Satellite Remote Sensing
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CSE |
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APA (6th Edition):
Marathe, A. (2008). Reforesting Mumbai: an analysis of land-use and land-cover change using satellite remote sensing and GIS. (Masters Thesis). University of Georgia. Retrieved from http://purl.galileo.usg.edu/uga_etd/marathe_apurva_a_200805_ms
Chicago Manual of Style (16th Edition):
Marathe, Apurva. “Reforesting Mumbai: an analysis of land-use and land-cover change using satellite remote sensing and GIS.” 2008. Masters Thesis, University of Georgia. Accessed February 18, 2020.
http://purl.galileo.usg.edu/uga_etd/marathe_apurva_a_200805_ms.
MLA Handbook (7th Edition):
Marathe, Apurva. “Reforesting Mumbai: an analysis of land-use and land-cover change using satellite remote sensing and GIS.” 2008. Web. 18 Feb 2020.
Vancouver:
Marathe A. Reforesting Mumbai: an analysis of land-use and land-cover change using satellite remote sensing and GIS. [Internet] [Masters thesis]. University of Georgia; 2008. [cited 2020 Feb 18].
Available from: http://purl.galileo.usg.edu/uga_etd/marathe_apurva_a_200805_ms.
Council of Science Editors:
Marathe A. Reforesting Mumbai: an analysis of land-use and land-cover change using satellite remote sensing and GIS. [Masters Thesis]. University of Georgia; 2008. Available from: http://purl.galileo.usg.edu/uga_etd/marathe_apurva_a_200805_ms
Texas A&M University
28.
Meyer, Kerry Glynne.
Global ice cloud observations: radiative properties and statistics from moderate-resolution imaging spectroradiometer measurements.
Degree: 2009, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1421
► Ice clouds occur quite frequently, yet so much about these clouds is unknown. In recent years, numerous investigations and field campaigns have been focused on…
(more)
▼ Ice clouds occur quite frequently, yet so much about these clouds is unknown. In recent years, numerous investigations and field campaigns have been focused on the study of ice clouds, all with the ultimate goal of gaining a better understanding of microphysical and optical properties, as well as determining the radiative impact. Perhaps one of the most recognized instruments used for such research is the Moderate-resolution Imaging Spectroradiometer (MODIS), carried aboard the NASA EOS satellites Terra and Aqua. The present research aims to support ongoing efforts in the field of ice cloud research by use of observations obtained from Terra and Aqua MODIS. First, a technique is developed to infer ice cloud optical depth from the MODIS cirrus reflectance parameter. This technique is based on a previous method developed by Meyer et al. (2004). The applicability of the algorithm is demonstrated with retrievals from level-2 and -3 MODIS data. The technique is also evaluated with the operational MODIS cloud retrieval product and a method based on airborne ice cloud observations. From this technique, an archive of daily optical depth retrievals is constructed. Using simple statistics, the global spatial and temporal distributions of ice clouds are determined. Research has found that Aqua MODIS observes more frequent ice clouds and larger optical depths and ice water paths than does Terra MODIS. Finally, an analysis of the time series of daily optical depth values revealed that ice clouds at high latitudes, which are most likely associated with synoptic scale weather sytems, persist long enough to move with the upper level winds. Tropical ice clouds, however, dissipate more rapidly, and are in all likelihood associated with deep convective cells.
Advisors/Committee Members: Yang, Ping (advisor), Kattawar, George (committee member), North, Gerald (committee member), Wilheit, Thomas (committee member).
Subjects/Keywords: remote sensing; clouds
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APA ·
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Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Meyer, K. G. (2009). Global ice cloud observations: radiative properties and statistics from moderate-resolution imaging spectroradiometer measurements. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1421
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Meyer, Kerry Glynne. “Global ice cloud observations: radiative properties and statistics from moderate-resolution imaging spectroradiometer measurements.” 2009. Thesis, Texas A&M University. Accessed February 18, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1421.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Meyer, Kerry Glynne. “Global ice cloud observations: radiative properties and statistics from moderate-resolution imaging spectroradiometer measurements.” 2009. Web. 18 Feb 2020.
Vancouver:
Meyer KG. Global ice cloud observations: radiative properties and statistics from moderate-resolution imaging spectroradiometer measurements. [Internet] [Thesis]. Texas A&M University; 2009. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1421.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Meyer KG. Global ice cloud observations: radiative properties and statistics from moderate-resolution imaging spectroradiometer measurements. [Thesis]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1421
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Texas A&M University
29.
El-Sobky, Hesham Farouk.
Remote sensing studies and morphotectonic investigations in an arid rift setting, Baja California, Mexico.
Degree: 2009, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1518
► The Gulf of California and its surrounding land areas provide a classic example of recently rifted continental lithosphere. The recent tectonic history of eastern Baja…
(more)
▼ The Gulf of California and its surrounding land areas provide a classic example
of recently rifted continental lithosphere. The recent tectonic history of eastern Baja
California has been dominated by oblique rifting that began at ~12 Ma. Thus,
extensional tectonics, bedrock lithology, long-term climatic changes, and evolving
surface processes have controlled the tectono-geomorphological evolution of the eastern
part of the peninsula since that time. In this study, digital elevation data from the Shuttle
Radar Topography Mission (SRTM) from Baja California were corrected and enhanced
by replacing artifacts with real values that were derived using a series of geostatistical
techniques. The next step was to generate accurate thematic geologic maps with high
resolution (15-m) for the entire eastern coast of Baja California. The main approach that
we used to clearly represent all the lithological units in the investigated area was objectoriented
classification based on fuzzy logic theory. The area of study was divided into
twenty-two blocks; each was classified independently on the basis of its own defined
membership function. Overall accuracies were 89.6 %, indicating that this approach was
highly recommended over the most conventional classification techniques. The third step of this study was to assess the factors that affected the
geomorphologic development along the eastern side of Baja California, where thirty-four
drainage basins were extracted from a 15-m-resolution absolute digital elevation model
(DEM). Thirty morphometric parameters were extracted; these parameters were then
reduced using principal component analysis (PCA). Cluster analysis classification
defined four major groups of basins. We extracted stream length-gradient indices, which
highlight the differential rock uplift that has occurred along fault escarpments bounding
the basins. Also, steepness and concavity indices were extracted for bedrock channels
within the thirty-four drainage basins.
The results were highly correlated with stream length-gradient indices for each
basin. Nine basins, exhibiting steepness index values greater than 0.07, indicated a
strong tectonic signature and possible higher uplift rates in these basins. Further, our
results indicated that drainage basins in the eastern rift province of Baja California could
be classified according to the dominant geomorphologic controlling factors (i.e., faultcontrolled,
lithology-controlled, or hybrid basins).
Advisors/Committee Members: Dorobek, Steven L. (advisor), Tchakerian, Vatche P. (advisor), Srinivasan, Raghavan (committee member), Watkins, Joel (committee member).
Subjects/Keywords: Morphotectonic; Remote Sensing
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APA ·
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Export
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Manager
APA (6th Edition):
El-Sobky, H. F. (2009). Remote sensing studies and morphotectonic investigations in an arid rift setting, Baja California, Mexico. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1518
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
El-Sobky, Hesham Farouk. “Remote sensing studies and morphotectonic investigations in an arid rift setting, Baja California, Mexico.” 2009. Thesis, Texas A&M University. Accessed February 18, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1518.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
El-Sobky, Hesham Farouk. “Remote sensing studies and morphotectonic investigations in an arid rift setting, Baja California, Mexico.” 2009. Web. 18 Feb 2020.
Vancouver:
El-Sobky HF. Remote sensing studies and morphotectonic investigations in an arid rift setting, Baja California, Mexico. [Internet] [Thesis]. Texas A&M University; 2009. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1518.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
El-Sobky HF. Remote sensing studies and morphotectonic investigations in an arid rift setting, Baja California, Mexico. [Thesis]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1518
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Hawaii – Manoa
30.
Kealy, John Conleth.
The role of the atmosphere in geodetic remote sensing.
Degree: 2016, University of Hawaii – Manoa
URL: http://hdl.handle.net/10125/101427
► M.S. University of Hawaii at Manoa 2011.
Geodetic remote sensing signals inherently contain information about the medium they must pass through, namely the Earth's atmosphere.…
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▼ M.S. University of Hawaii at Manoa 2011.
Geodetic remote sensing signals inherently contain information about the medium they must pass through, namely the Earth's atmosphere. The information added to such a signal can take the form of unwanted noise, or can be useful, depending on the nature of the observing system. This study focuses on two contrasting approaches to atmospheric interaction with geodetic satellite signals, atmospheric noise reduction in Interferometric Synthetic Aperture Radar (InSAR), and meteorological data acquisition over the ocean using the global positioning system (GPS).
Subjects/Keywords: geodetic remote sensing
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APA (6th Edition):
Kealy, J. C. (2016). The role of the atmosphere in geodetic remote sensing. (Thesis). University of Hawaii – Manoa. Retrieved from http://hdl.handle.net/10125/101427
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kealy, John Conleth. “The role of the atmosphere in geodetic remote sensing.” 2016. Thesis, University of Hawaii – Manoa. Accessed February 18, 2020.
http://hdl.handle.net/10125/101427.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kealy, John Conleth. “The role of the atmosphere in geodetic remote sensing.” 2016. Web. 18 Feb 2020.
Vancouver:
Kealy JC. The role of the atmosphere in geodetic remote sensing. [Internet] [Thesis]. University of Hawaii – Manoa; 2016. [cited 2020 Feb 18].
Available from: http://hdl.handle.net/10125/101427.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kealy JC. The role of the atmosphere in geodetic remote sensing. [Thesis]. University of Hawaii – Manoa; 2016. Available from: http://hdl.handle.net/10125/101427
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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