Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Optical satellite imagery"”.
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Delineation of Surface Water Features Using RADARSAT-2 Imagery and a TOPAZ Masking Approach over the Prairie Pothole Region in Canada
… temporal variation in the surface water area. Satellite remote sensing is the only practical approach to delineating the surface water area of Prairie potholes on an ongoing and cost-effective basis. Optical satellite imagery is able to detect surface water but only under cloud-free conditions, …
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Monitoring Global Forest Land-Use and Change
… and monitored using medium spatial resolution optical satellite imagery in order to estimate forest land use change over time for large geographic areas. First, the effects of clouds, cloud shadows and missing data were analyzed to determine the amount of moderate spatial resolution, optical …
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Glacier Surge Dynamics on Western Axel Heiberg Island, Nunavut
… aerial photographs, declassified intelligence satellite photographs, optical satellite imagery (e.g., ASTER, Landsat), and synthetic aperture radar data (e.g., ERS-1, ERS-2) were used to quantify changes in terminus position, ice velocity, and ice thickness since the 1950s. A surge initiated at …
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Assessing the Utility of Imaging Radar for Identifying White Sand Vegetation Structure
… of these locations has currently only used optical satellite imagery (Landsat, MODIS). Hence, in this project, we have attempted to use synthetic aperture radar to create a classification system to locate the white sand vegetation systems. The goal is to be able to apply this method to …
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Automated avalanche mapping with deep learning: from satellite to webcam imagery
… is used to extract such information from optical satellite and webcam imagery. The avalanches required to train the deep learning models are identified and mapped by human experts in the domain. Therefore, the thesis also focuses on the consistency of the avalanche area identified by …
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Observing the Seasonal Evolution of Supraglacial Ponds in High Mountain Asia: A Supervised Classification Approach
… within the Himalaya region, with Sentinel-2 optical satellite imagery obtained from April 2017 to October 2021 and 8m resolution HMA DEM data. The RFC is validated against manually derived pond outlines at these glaciers. The RFC achieves accuracy of 86.3-99.6% against manually derived …
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Remote sensing of river kinematics and their expression in the modern and ancient stratigraphic record
… of modern river kinematics using timelapse satellite imagery and characterization of uniquely exposed ancient river deposits using photogrammetric and numerical modeling approaches. The research described herein focuses on three central themes: (1) the geomorphic and stratigraphic impact of …