Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta
Yedoma—extremely ice-rich permafrost with massive ice wedges formed during the Late Pleistocene—is vulnerable to thawing and degradation under climate warming. Thawing of ice-rich Yedoma results in lowering of surface elevations. Quantitative knowledge about surface elevation changes helps us to und...
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ftmdpi:oai:mdpi.com:/2072-4292/10/7/1152/ 2023-08-20T04:07:07+02:00 Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta Jie Chen Frank Günther Guido Grosse Lin Liu Hui Lin agris 2018-07-21 application/pdf https://doi.org/10.3390/rs10071152 EN eng Multidisciplinary Digital Publishing Institute Remote Sensing in Geology, Geomorphology and Hydrology https://dx.doi.org/10.3390/rs10071152 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 10; Issue 7; Pages: 1152 Sentinel-1 InSAR Yedoma uplands Sobo-Sise Island summer heave permafrost thaw subsidence active layer Text 2018 ftmdpi https://doi.org/10.3390/rs10071152 2023-07-31T21:38:19Z Yedoma—extremely ice-rich permafrost with massive ice wedges formed during the Late Pleistocene—is vulnerable to thawing and degradation under climate warming. Thawing of ice-rich Yedoma results in lowering of surface elevations. Quantitative knowledge about surface elevation changes helps us to understand the freeze-thaw processes of the active layer and the potential degradation of Yedoma deposits. In this study, we use C-band Sentinel-1 InSAR measurements to map the elevation changes over ice-rich Yedoma uplands on Sobo-Sise Island, Lena Delta with frequent revisit observations (as short as six or 12 days). We observe significant seasonal thaw subsidence during summer months and heterogeneous inter-annual elevation changes from 2016–17. We also observe interesting patterns of stronger seasonal thaw subsidence on elevated flat Yedoma uplands by comparing to the surrounding Yedoma slopes. Inter-annual analyses from 2016–17 suggest that our observed positive surface elevation changes are likely caused by the delayed progression of the thaw season in 2017, associated with mean annual air temperature fluctuations. Text Ice lena delta permafrost wedge* MDPI Open Access Publishing Remote Sensing 10 7 1152 |
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Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
Sentinel-1 InSAR Yedoma uplands Sobo-Sise Island summer heave permafrost thaw subsidence active layer |
spellingShingle |
Sentinel-1 InSAR Yedoma uplands Sobo-Sise Island summer heave permafrost thaw subsidence active layer Jie Chen Frank Günther Guido Grosse Lin Liu Hui Lin Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta |
topic_facet |
Sentinel-1 InSAR Yedoma uplands Sobo-Sise Island summer heave permafrost thaw subsidence active layer |
description |
Yedoma—extremely ice-rich permafrost with massive ice wedges formed during the Late Pleistocene—is vulnerable to thawing and degradation under climate warming. Thawing of ice-rich Yedoma results in lowering of surface elevations. Quantitative knowledge about surface elevation changes helps us to understand the freeze-thaw processes of the active layer and the potential degradation of Yedoma deposits. In this study, we use C-band Sentinel-1 InSAR measurements to map the elevation changes over ice-rich Yedoma uplands on Sobo-Sise Island, Lena Delta with frequent revisit observations (as short as six or 12 days). We observe significant seasonal thaw subsidence during summer months and heterogeneous inter-annual elevation changes from 2016–17. We also observe interesting patterns of stronger seasonal thaw subsidence on elevated flat Yedoma uplands by comparing to the surrounding Yedoma slopes. Inter-annual analyses from 2016–17 suggest that our observed positive surface elevation changes are likely caused by the delayed progression of the thaw season in 2017, associated with mean annual air temperature fluctuations. |
format |
Text |
author |
Jie Chen Frank Günther Guido Grosse Lin Liu Hui Lin |
author_facet |
Jie Chen Frank Günther Guido Grosse Lin Liu Hui Lin |
author_sort |
Jie Chen |
title |
Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta |
title_short |
Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta |
title_full |
Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta |
title_fullStr |
Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta |
title_full_unstemmed |
Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta |
title_sort |
sentinel-1 insar measurements of elevation changes over yedoma uplands on sobo-sise island, lena delta |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2018 |
url |
https://doi.org/10.3390/rs10071152 |
op_coverage |
agris |
genre |
Ice lena delta permafrost wedge* |
genre_facet |
Ice lena delta permafrost wedge* |
op_source |
Remote Sensing; Volume 10; Issue 7; Pages: 1152 |
op_relation |
Remote Sensing in Geology, Geomorphology and Hydrology https://dx.doi.org/10.3390/rs10071152 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs10071152 |
container_title |
Remote Sensing |
container_volume |
10 |
container_issue |
7 |
container_start_page |
1152 |
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1774718564668801024 |