Global ETD Search
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Showing 1 to 5 of 5 for “"Retrogressive Thaw Slumps"”.
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A Transfer Learning Approach for Automatic Mapping of Retrogressive Thaw Slumps (RTSs) in the Western Canadian Arctic
Retrogressive thaw slumps (RTSs) are thermokarst landforms that develop on slopes in permafrost regions when thawing permafrost causes the land surface to collapse. RTSs are an indicator of climate change and pose a threat to human infrastructure and ecosystems in the affected areas. As the …
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Climatic drivers of retrogressive thaw slump activity and resulting sediment and carbon release to the nearshore zone of Herschel Island, Yukon Territory, Canada
… sensitive to changing environmental conditions. Retrogressive thaw slumps are a common thermoerosion feature along this coast, and develop through the thawing of exposed ice-rich permafrost on slopes and removal of accumulating debris. They contribute large amounts of sediment, including organic …
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Description and Quantification of Debris Tongue Movement in a Retrogressive Thaw Slump Using Aerial and Terrestrial Photogrammetry
Retrogressive thaw slumps can modify large areas of the landscape and pose a significant threat to linear infrastructure in the Arctic. There is little published information on how retrogressive thaw slump debris tongues develop. This thesis demonstrates a novel technique for combining information …
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Relative influence of temperature and disturbance on vegetation dynamics in the Low Arctic : an investigation at multiple scales.
… growth, and reproduction on disturbed (burns and thaw slumps) and undisturbed sites across a regional temperature gradient. Disturbed areas showed increases in alder productivity, catkin production, and seed viability, as well as differences in plant community composition and microenvironment. The …
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The modification of arctic permafrost coastlines
… of spectacular “C-shaped” depressions termed retrogressive thaw slumps which can reach lengths of up to 650 m. On Herschel Island and at King Point (Yukon Coastal Plain, northern Canada), topographical, sedimentological and biogeochemical surveys were conducted to investigate the present and …