Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing
Permafrost degradation can be monitored through changes in the surface area and depth of thermokarst ponds. Radar remote sensing allows for discrimination of thermokarst ponds of different depths across large areas because different water depths produce different ice regimes in winter. In this study...
Published in: | Permafrost and Periglacial Processes |
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Online Access: | https://doi.org/10.1002/ppp.1986 |
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ftrepec:oai:RePEc:wly:perpro:v:29:y:2018:i:4:p:231-245 2023-05-15T16:36:35+02:00 Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing Lingxiao Wang Maxime Jolivel Philip Marzahn Monique Bernier Ralf Ludwig https://doi.org/10.1002/ppp.1986 unknown https://doi.org/10.1002/ppp.1986 article ftrepec https://doi.org/10.1002/ppp.1986 2020-12-04T13:31:25Z Permafrost degradation can be monitored through changes in the surface area and depth of thermokarst ponds. Radar remote sensing allows for discrimination of thermokarst ponds of different depths across large areas because different water depths produce different ice regimes in winter. In this study, patterns in the spatial distribution of ice‐cover regimes of thermokarst ponds in a typical discontinuous permafrost region are first revealed. Correlations of these ice‐cover regimes with the permafrost degradation states and thermokarst pond development in two historical phases were analyzed and compared. The results indicate that the ice‐cover regimes of thermokarst ponds are affected by soil texture, permafrost degradation stage and permafrost depth. Permafrost degradation is difficult to assess directly from the coverage area of floating‐ice ponds and the percentage of all thermokarst ponds consisting of such floating‐ice ponds in a single year. Therefore, continuous monitoring of ice‐cover regimes and surface areas can help to elucidate the hydrological trajectory of the thermokarst process and permafrost state. Article in Journal/Newspaper Ice permafrost Subarctic Thermokarst RePEc (Research Papers in Economics) Permafrost and Periglacial Processes 29 4 231 245 |
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Open Polar |
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RePEc (Research Papers in Economics) |
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unknown |
description |
Permafrost degradation can be monitored through changes in the surface area and depth of thermokarst ponds. Radar remote sensing allows for discrimination of thermokarst ponds of different depths across large areas because different water depths produce different ice regimes in winter. In this study, patterns in the spatial distribution of ice‐cover regimes of thermokarst ponds in a typical discontinuous permafrost region are first revealed. Correlations of these ice‐cover regimes with the permafrost degradation states and thermokarst pond development in two historical phases were analyzed and compared. The results indicate that the ice‐cover regimes of thermokarst ponds are affected by soil texture, permafrost degradation stage and permafrost depth. Permafrost degradation is difficult to assess directly from the coverage area of floating‐ice ponds and the percentage of all thermokarst ponds consisting of such floating‐ice ponds in a single year. Therefore, continuous monitoring of ice‐cover regimes and surface areas can help to elucidate the hydrological trajectory of the thermokarst process and permafrost state. |
format |
Article in Journal/Newspaper |
author |
Lingxiao Wang Maxime Jolivel Philip Marzahn Monique Bernier Ralf Ludwig |
spellingShingle |
Lingxiao Wang Maxime Jolivel Philip Marzahn Monique Bernier Ralf Ludwig Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing |
author_facet |
Lingxiao Wang Maxime Jolivel Philip Marzahn Monique Bernier Ralf Ludwig |
author_sort |
Lingxiao Wang |
title |
Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing |
title_short |
Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing |
title_full |
Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing |
title_fullStr |
Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing |
title_full_unstemmed |
Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing |
title_sort |
thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing |
url |
https://doi.org/10.1002/ppp.1986 |
genre |
Ice permafrost Subarctic Thermokarst |
genre_facet |
Ice permafrost Subarctic Thermokarst |
op_relation |
https://doi.org/10.1002/ppp.1986 |
op_doi |
https://doi.org/10.1002/ppp.1986 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
29 |
container_issue |
4 |
container_start_page |
231 |
op_container_end_page |
245 |
_version_ |
1766026928210313216 |