Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing
Abstract 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 t...
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crwiley:10.1002/ppp.1986 2024-09-15T18:11:20+00:00 Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing Wang, Lingxiao Jolivel, Maxime Marzahn, Philip Bernier, Monique Ludwig, Ralf Canadian Space Agency 2018 http://dx.doi.org/10.1002/ppp.1986 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1986 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1986 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 29, issue 4, page 231-245 ISSN 1045-6740 1099-1530 journal-article 2018 crwiley https://doi.org/10.1002/ppp.1986 2024-08-06T04:15:50Z Abstract 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 Permafrost and Periglacial Processes Subarctic Thermokarst Wiley Online Library Permafrost and Periglacial Processes 29 4 231 245 |
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Wiley Online Library |
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English |
description |
Abstract 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. |
author2 |
Canadian Space Agency |
format |
Article in Journal/Newspaper |
author |
Wang, Lingxiao Jolivel, Maxime Marzahn, Philip Bernier, Monique Ludwig, Ralf |
spellingShingle |
Wang, Lingxiao Jolivel, Maxime Marzahn, Philip Bernier, Monique Ludwig, Ralf Thermokarst pond dynamics in subarctic environment monitoring with radar remote sensing |
author_facet |
Wang, Lingxiao Jolivel, Maxime Marzahn, Philip Bernier, Monique Ludwig, Ralf |
author_sort |
Wang, Lingxiao |
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 |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/ppp.1986 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.1986 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.1986 |
genre |
Ice permafrost Permafrost and Periglacial Processes Subarctic Thermokarst |
genre_facet |
Ice permafrost Permafrost and Periglacial Processes Subarctic Thermokarst |
op_source |
Permafrost and Periglacial Processes volume 29, issue 4, page 231-245 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
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 |
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1810448915107938304 |