Monitoring of Thermokarst Lake Changes and Coastal Dynamics in Permafrost Landscapes of the East Siberian Sea Region Using High Resolution Imagery and DEM Data
The coastal region bordering the East-Siberian Sea is covered by ice-rich Yedoma deposits, which are extremely vulnerable to thaw in the course of climate warming in the high latitudes. Widespread permafrost degradation throughout the Arctic resulted in relief changes on ground-ice-cored Yedoma upla...
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ftawi:oai:epic.awi.de:45442 2023-05-15T15:00:38+02:00 Monitoring of Thermokarst Lake Changes and Coastal Dynamics in Permafrost Landscapes of the East Siberian Sea Region Using High Resolution Imagery and DEM Data Veremeeva, Aleksandra A. Günther, Frank 2017-09-01 application/pdf https://epic.awi.de/id/eprint/45442/ https://epic.awi.de/id/eprint/45442/2/Veremeeva_Guenther_EARSeL_2017.pdf http://rs-cz.earsel.org/workshop/8ws-rs-cz/wp-content/uploads/2016/11/abstracts.pdf https://hdl.handle.net/10013/epic.51567 https://hdl.handle.net/10013/epic.51567.d002 unknown https://epic.awi.de/id/eprint/45442/2/Veremeeva_Guenther_EARSeL_2017.pdf https://hdl.handle.net/10013/epic.51567.d002 Veremeeva, A. A. and Günther, F. orcid:0000-0001-8298-8937 (2017) Monitoring of Thermokarst Lake Changes and Coastal Dynamics in Permafrost Landscapes of the East Siberian Sea Region Using High Resolution Imagery and DEM Data , 8th EARSeL SIG Workshop on Remote Sensing of Coastal Zone 2017, The Museum of the World Ocean, Kaliningrad, Russia, 31 August 2017 - 2 September 2017 . hdl:10013/epic.51567 info:eu-repo/semantics/openAccess EPIC38th EARSeL SIG Workshop on Remote Sensing of Coastal Zone 2017, The Museum of the World Ocean, Kaliningrad, Russia, 2017-08-31-2017-09-02Kaliningrad, Russian Federation Conference notRev info:eu-repo/semantics/conferenceObject 2017 ftawi 2021-12-24T15:43:14Z The coastal region bordering the East-Siberian Sea is covered by ice-rich Yedoma deposits, which are extremely vulnerable to thaw in the course of climate warming in the high latitudes. Widespread permafrost degradation throughout the Arctic resulted in relief changes on ground-ice-cored Yedoma uplands. In order to track dynamics of these processes in the Kolyma lowland tundra at Cape Maly Chukochy (N 72.08°, E 159.9°), we used a set of very high resolution remote sensing imagery (GeoEye and historical airphotos) which were compared with DEM data (TanDEM-X and derived from WorldView-2). Analysis of meteorological data have put observed changes into the context of warming and wetting trends. Yedoma uplands represent flat bogged areas featuring a high number of thermokarst ponds with an average size of 5-10 in diameter. Our image dataset revealed a doubling in the number and areal coverage of ponds from 1972 to 2009 and a further twofold increase until 2013, while thermokarst lakes that formed within Yedoma deposits increased by 7-10 %, being partially in agreement with studies conducted elsewhere in the Arctic. Coastal erosion rates from 1972 until 2013 were high and 1,5 m per year on average. We used the areal extend of thermokarst mounds (baydzherakhs) on Yedoma slopes as indicator for ground ice melt and our estimates show a baydzherakhs coverage increase of 20 % by 2013. All these changes highlight the activation and acceleration of permafrost degradation on Yedoma uplands in response to increasing air temperatures and precipitation in the East-Siberian Sea coastal region. Conference Object Arctic East Siberian Sea Ice permafrost Thermokarst Tundra Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Kolyma ENVELOPE(161.000,161.000,69.500,69.500) East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The coastal region bordering the East-Siberian Sea is covered by ice-rich Yedoma deposits, which are extremely vulnerable to thaw in the course of climate warming in the high latitudes. Widespread permafrost degradation throughout the Arctic resulted in relief changes on ground-ice-cored Yedoma uplands. In order to track dynamics of these processes in the Kolyma lowland tundra at Cape Maly Chukochy (N 72.08°, E 159.9°), we used a set of very high resolution remote sensing imagery (GeoEye and historical airphotos) which were compared with DEM data (TanDEM-X and derived from WorldView-2). Analysis of meteorological data have put observed changes into the context of warming and wetting trends. Yedoma uplands represent flat bogged areas featuring a high number of thermokarst ponds with an average size of 5-10 in diameter. Our image dataset revealed a doubling in the number and areal coverage of ponds from 1972 to 2009 and a further twofold increase until 2013, while thermokarst lakes that formed within Yedoma deposits increased by 7-10 %, being partially in agreement with studies conducted elsewhere in the Arctic. Coastal erosion rates from 1972 until 2013 were high and 1,5 m per year on average. We used the areal extend of thermokarst mounds (baydzherakhs) on Yedoma slopes as indicator for ground ice melt and our estimates show a baydzherakhs coverage increase of 20 % by 2013. All these changes highlight the activation and acceleration of permafrost degradation on Yedoma uplands in response to increasing air temperatures and precipitation in the East-Siberian Sea coastal region. |
format |
Conference Object |
author |
Veremeeva, Aleksandra A. Günther, Frank |
spellingShingle |
Veremeeva, Aleksandra A. Günther, Frank Monitoring of Thermokarst Lake Changes and Coastal Dynamics in Permafrost Landscapes of the East Siberian Sea Region Using High Resolution Imagery and DEM Data |
author_facet |
Veremeeva, Aleksandra A. Günther, Frank |
author_sort |
Veremeeva, Aleksandra A. |
title |
Monitoring of Thermokarst Lake Changes and Coastal Dynamics in Permafrost Landscapes of the East Siberian Sea Region Using High Resolution Imagery and DEM Data |
title_short |
Monitoring of Thermokarst Lake Changes and Coastal Dynamics in Permafrost Landscapes of the East Siberian Sea Region Using High Resolution Imagery and DEM Data |
title_full |
Monitoring of Thermokarst Lake Changes and Coastal Dynamics in Permafrost Landscapes of the East Siberian Sea Region Using High Resolution Imagery and DEM Data |
title_fullStr |
Monitoring of Thermokarst Lake Changes and Coastal Dynamics in Permafrost Landscapes of the East Siberian Sea Region Using High Resolution Imagery and DEM Data |
title_full_unstemmed |
Monitoring of Thermokarst Lake Changes and Coastal Dynamics in Permafrost Landscapes of the East Siberian Sea Region Using High Resolution Imagery and DEM Data |
title_sort |
monitoring of thermokarst lake changes and coastal dynamics in permafrost landscapes of the east siberian sea region using high resolution imagery and dem data |
publishDate |
2017 |
url |
https://epic.awi.de/id/eprint/45442/ https://epic.awi.de/id/eprint/45442/2/Veremeeva_Guenther_EARSeL_2017.pdf http://rs-cz.earsel.org/workshop/8ws-rs-cz/wp-content/uploads/2016/11/abstracts.pdf https://hdl.handle.net/10013/epic.51567 https://hdl.handle.net/10013/epic.51567.d002 |
long_lat |
ENVELOPE(161.000,161.000,69.500,69.500) ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic Kolyma East Siberian Sea |
geographic_facet |
Arctic Kolyma East Siberian Sea |
genre |
Arctic East Siberian Sea Ice permafrost Thermokarst Tundra |
genre_facet |
Arctic East Siberian Sea Ice permafrost Thermokarst Tundra |
op_source |
EPIC38th EARSeL SIG Workshop on Remote Sensing of Coastal Zone 2017, The Museum of the World Ocean, Kaliningrad, Russia, 2017-08-31-2017-09-02Kaliningrad, Russian Federation |
op_relation |
https://epic.awi.de/id/eprint/45442/2/Veremeeva_Guenther_EARSeL_2017.pdf https://hdl.handle.net/10013/epic.51567.d002 Veremeeva, A. A. and Günther, F. orcid:0000-0001-8298-8937 (2017) Monitoring of Thermokarst Lake Changes and Coastal Dynamics in Permafrost Landscapes of the East Siberian Sea Region Using High Resolution Imagery and DEM Data , 8th EARSeL SIG Workshop on Remote Sensing of Coastal Zone 2017, The Museum of the World Ocean, Kaliningrad, Russia, 31 August 2017 - 2 September 2017 . hdl:10013/epic.51567 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766332709677826048 |