Earth Observation-based Time Series Analysis of Retrogressive Thaw Slump Dynamics in the Russian High Arctic
While temperatures are rising globally, they are rising more than twice as fast in the Arctic. Landscapes underlain by permafrost are especially vulnerable to this changing climate and experience increased thaw and degradation. The proceeding warming of organic-rich frozen ground is a highly relevan...
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Universität Potsdam
2022
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ftawi:oai:epic.awi.de:57279 2023-05-15T14:24:50+02:00 Earth Observation-based Time Series Analysis of Retrogressive Thaw Slump Dynamics in the Russian High Arctic Barth, Sophia 2022 application/pdf https://epic.awi.de/id/eprint/57279/ https://epic.awi.de/id/eprint/57279/1/Masterthesis_SophiaBarth_29072022.pdf https://hdl.handle.net/10013/epic.ff2c0999-691d-47b8-9b92-317dad2a90bc https://hdl.handle.net/ unknown Universität Potsdam https://epic.awi.de/id/eprint/57279/1/Masterthesis_SophiaBarth_29072022.pdf https://hdl.handle.net/ Barth, S. (2022) Earth Observation-based Time Series Analysis of Retrogressive Thaw Slump Dynamics in the Russian High Arctic , Master thesis, Universität Potsdam. hdl:10013/epic.ff2c0999-691d-47b8-9b92-317dad2a90bc EPIC3Universität Potsdam Thesis notRev 2022 ftawi 2022-10-16T23:12:43Z While temperatures are rising globally, they are rising more than twice as fast in the Arctic. Landscapes underlain by permafrost are especially vulnerable to this changing climate and experience increased thaw and degradation. The proceeding warming of organic-rich frozen ground is a highly relevant driver of carbon release into the atmosphere. Retrogressive Thaw Slumps (RTSs) are dynamic thermokarst features which develop when ice-rich permafrost thaws and thus are important indices when it comes to the assessment of potential carbon sources in permafrost landscapes. Thousands of RTSs have been inventoried in northwestern Canada. These inventories showed that thaw slumping modifies terrain morphology and alters the discharge into aquatic systems resulting amongst others in infrastructure instabilities and ecosystem changes. Furthermore, recent studies project that abrupt thermokarst processes contribute significant amounts of greenhouse gas emissions. As observed in most arctic regions, RTS activity has increased in the Russian High Arctic, however, little research has been done on RTSs in this region. The objective of this study is to better understand growth pattern and development rates of RTSs in northern Russia during the last decade. The study area consists of five different sites in the Russian High Arctic covering an area of more than 600 km². The sites are located on the Novaya Zemlya Archipelago, Kolguev Island, Bol’shoy Lyakhovsky Island and Taymyr Peninsula in ice-rich permafrost characterized by either buried glacial ice deposits or syngenetically formed Yedoma permafrost. To assess changes in number and extent, a GIS based inventory of manually mapped RTSs was created. The inventory is based on multispectral imagery of high-resolution satellite sensors, including PlanetScope, RapidEye, Pléiades and SPOT. Cloud free images were acquired between 2011 and 2020 and exist for each or every few years depending on their availability. Additional data sets such as ArcticDEM, Esri Satellite base map and ... Thesis Arctic Arctic Ice Kolguev Novaya Zemlya permafrost Taymyr Taymyr Peninsula Thermokarst Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Canada Taymyr ENVELOPE(89.987,89.987,68.219,68.219) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
While temperatures are rising globally, they are rising more than twice as fast in the Arctic. Landscapes underlain by permafrost are especially vulnerable to this changing climate and experience increased thaw and degradation. The proceeding warming of organic-rich frozen ground is a highly relevant driver of carbon release into the atmosphere. Retrogressive Thaw Slumps (RTSs) are dynamic thermokarst features which develop when ice-rich permafrost thaws and thus are important indices when it comes to the assessment of potential carbon sources in permafrost landscapes. Thousands of RTSs have been inventoried in northwestern Canada. These inventories showed that thaw slumping modifies terrain morphology and alters the discharge into aquatic systems resulting amongst others in infrastructure instabilities and ecosystem changes. Furthermore, recent studies project that abrupt thermokarst processes contribute significant amounts of greenhouse gas emissions. As observed in most arctic regions, RTS activity has increased in the Russian High Arctic, however, little research has been done on RTSs in this region. The objective of this study is to better understand growth pattern and development rates of RTSs in northern Russia during the last decade. The study area consists of five different sites in the Russian High Arctic covering an area of more than 600 km². The sites are located on the Novaya Zemlya Archipelago, Kolguev Island, Bol’shoy Lyakhovsky Island and Taymyr Peninsula in ice-rich permafrost characterized by either buried glacial ice deposits or syngenetically formed Yedoma permafrost. To assess changes in number and extent, a GIS based inventory of manually mapped RTSs was created. The inventory is based on multispectral imagery of high-resolution satellite sensors, including PlanetScope, RapidEye, Pléiades and SPOT. Cloud free images were acquired between 2011 and 2020 and exist for each or every few years depending on their availability. Additional data sets such as ArcticDEM, Esri Satellite base map and ... |
format |
Thesis |
author |
Barth, Sophia |
spellingShingle |
Barth, Sophia Earth Observation-based Time Series Analysis of Retrogressive Thaw Slump Dynamics in the Russian High Arctic |
author_facet |
Barth, Sophia |
author_sort |
Barth, Sophia |
title |
Earth Observation-based Time Series Analysis of Retrogressive Thaw Slump Dynamics in the Russian High Arctic |
title_short |
Earth Observation-based Time Series Analysis of Retrogressive Thaw Slump Dynamics in the Russian High Arctic |
title_full |
Earth Observation-based Time Series Analysis of Retrogressive Thaw Slump Dynamics in the Russian High Arctic |
title_fullStr |
Earth Observation-based Time Series Analysis of Retrogressive Thaw Slump Dynamics in the Russian High Arctic |
title_full_unstemmed |
Earth Observation-based Time Series Analysis of Retrogressive Thaw Slump Dynamics in the Russian High Arctic |
title_sort |
earth observation-based time series analysis of retrogressive thaw slump dynamics in the russian high arctic |
publisher |
Universität Potsdam |
publishDate |
2022 |
url |
https://epic.awi.de/id/eprint/57279/ https://epic.awi.de/id/eprint/57279/1/Masterthesis_SophiaBarth_29072022.pdf https://hdl.handle.net/10013/epic.ff2c0999-691d-47b8-9b92-317dad2a90bc https://hdl.handle.net/ |
long_lat |
ENVELOPE(89.987,89.987,68.219,68.219) |
geographic |
Arctic Canada Taymyr |
geographic_facet |
Arctic Canada Taymyr |
genre |
Arctic Arctic Ice Kolguev Novaya Zemlya permafrost Taymyr Taymyr Peninsula Thermokarst |
genre_facet |
Arctic Arctic Ice Kolguev Novaya Zemlya permafrost Taymyr Taymyr Peninsula Thermokarst |
op_source |
EPIC3Universität Potsdam |
op_relation |
https://epic.awi.de/id/eprint/57279/1/Masterthesis_SophiaBarth_29072022.pdf https://hdl.handle.net/ Barth, S. (2022) Earth Observation-based Time Series Analysis of Retrogressive Thaw Slump Dynamics in the Russian High Arctic , Master thesis, Universität Potsdam. hdl:10013/epic.ff2c0999-691d-47b8-9b92-317dad2a90bc |
_version_ |
1766297287835779072 |