Distribution and Morphometry of Thermocirques in the North of West Siberia, Russia
The Arctic zone of West Siberia (Yamal and Gydan peninsulas) is an area with continuous permafrost and tabular ground ice close to the surface, active thermodenudation, and related landforms: retrogressive thaw slumps (RTS); in Russian referred to as thermocirques (TC). The dimensions of most TCs ha...
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ftmdpi:oai:mdpi.com:/2076-3263/13/6/167/ 2023-08-20T04:04:42+02:00 Distribution and Morphometry of Thermocirques in the North of West Siberia, Russia Marina Leibman Nina Nesterova Maxim Altukhov agris 2023-06-03 application/pdf https://doi.org/10.3390/geosciences13060167 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/geosciences13060167 https://creativecommons.org/licenses/by/4.0/ Geosciences; Volume 13; Issue 6; Pages: 167 retrogressive thaw slump thermocirque West Siberia thermocirque dimensions Sentinel-2 UAV survey WorldView 2 WorldView 3 Landsat ArcticDEM Text 2023 ftmdpi https://doi.org/10.3390/geosciences13060167 2023-08-01T10:21:07Z The Arctic zone of West Siberia (Yamal and Gydan peninsulas) is an area with continuous permafrost and tabular ground ice close to the surface, active thermodenudation, and related landforms: retrogressive thaw slumps (RTS); in Russian referred to as thermocirques (TC). The dimensions of most TCs have not been determined so far. We use Sentinel 2 imagery to measure each TC area ranging from 0.55 to 38 ha with a median of 2.5 ha. Around 95% of TCs have an area of less than 10 ha. The largest areas are gained due to the merging of several neighboring TCs. The ArcticDEM is used to determine TC edge elevation and slope angle. In general, the Median TC of the Yamal peninsula has an area of 1.8 ha, an elevation of the edge of 17.7 m, and a slope angle of 2.5°. The Median TC of the Gydan peninsula has an area of 2.6 ha, elevation of the edge of 29.4 m, and slope angle of 3°. TCs of the Gydan peninsula occupy higher positions and slightly steeper slopes compared to TCs of the Yamal peninsula. The ranges of the median and the largest TC areas are consistent with the reported RTS dimensions in North America. Text Arctic Ice permafrost Yamal Peninsula Siberia MDPI Open Access Publishing Arctic Yamal Peninsula ENVELOPE(69.873,69.873,70.816,70.816) Geosciences 13 6 167 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
retrogressive thaw slump thermocirque West Siberia thermocirque dimensions Sentinel-2 UAV survey WorldView 2 WorldView 3 Landsat ArcticDEM |
spellingShingle |
retrogressive thaw slump thermocirque West Siberia thermocirque dimensions Sentinel-2 UAV survey WorldView 2 WorldView 3 Landsat ArcticDEM Marina Leibman Nina Nesterova Maxim Altukhov Distribution and Morphometry of Thermocirques in the North of West Siberia, Russia |
topic_facet |
retrogressive thaw slump thermocirque West Siberia thermocirque dimensions Sentinel-2 UAV survey WorldView 2 WorldView 3 Landsat ArcticDEM |
description |
The Arctic zone of West Siberia (Yamal and Gydan peninsulas) is an area with continuous permafrost and tabular ground ice close to the surface, active thermodenudation, and related landforms: retrogressive thaw slumps (RTS); in Russian referred to as thermocirques (TC). The dimensions of most TCs have not been determined so far. We use Sentinel 2 imagery to measure each TC area ranging from 0.55 to 38 ha with a median of 2.5 ha. Around 95% of TCs have an area of less than 10 ha. The largest areas are gained due to the merging of several neighboring TCs. The ArcticDEM is used to determine TC edge elevation and slope angle. In general, the Median TC of the Yamal peninsula has an area of 1.8 ha, an elevation of the edge of 17.7 m, and a slope angle of 2.5°. The Median TC of the Gydan peninsula has an area of 2.6 ha, elevation of the edge of 29.4 m, and slope angle of 3°. TCs of the Gydan peninsula occupy higher positions and slightly steeper slopes compared to TCs of the Yamal peninsula. The ranges of the median and the largest TC areas are consistent with the reported RTS dimensions in North America. |
format |
Text |
author |
Marina Leibman Nina Nesterova Maxim Altukhov |
author_facet |
Marina Leibman Nina Nesterova Maxim Altukhov |
author_sort |
Marina Leibman |
title |
Distribution and Morphometry of Thermocirques in the North of West Siberia, Russia |
title_short |
Distribution and Morphometry of Thermocirques in the North of West Siberia, Russia |
title_full |
Distribution and Morphometry of Thermocirques in the North of West Siberia, Russia |
title_fullStr |
Distribution and Morphometry of Thermocirques in the North of West Siberia, Russia |
title_full_unstemmed |
Distribution and Morphometry of Thermocirques in the North of West Siberia, Russia |
title_sort |
distribution and morphometry of thermocirques in the north of west siberia, russia |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/geosciences13060167 |
op_coverage |
agris |
long_lat |
ENVELOPE(69.873,69.873,70.816,70.816) |
geographic |
Arctic Yamal Peninsula |
geographic_facet |
Arctic Yamal Peninsula |
genre |
Arctic Ice permafrost Yamal Peninsula Siberia |
genre_facet |
Arctic Ice permafrost Yamal Peninsula Siberia |
op_source |
Geosciences; Volume 13; Issue 6; Pages: 167 |
op_relation |
https://dx.doi.org/10.3390/geosciences13060167 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/geosciences13060167 |
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Geosciences |
container_volume |
13 |
container_issue |
6 |
container_start_page |
167 |
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1774715081921134592 |