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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ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:52625 2023-05-15T16:37:23+02:00 Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta Chen, Jie Günther, Frank (Dr.) Grosse, Guido (Prof. Dr.) Liu, Lin Lin, Hui 2018-07-21 https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/52625 https://doi.org/10.3390/rs10071152 eng eng https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/52625 https://doi.org/10.3390/rs10071152 https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/closedAccess CC-BY ddc:620 Mathematisch-Naturwissenschaftliche Fakultät article doc-type:article 2018 ftubpotsdam https://doi.org/10.3390/rs10071152 2022-08-21T22:36:52Z 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. Article in Journal/Newspaper Ice lena delta permafrost wedge* University of Potsdam: publish.UP Remote Sensing 10 7 1152 |
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Open Polar |
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University of Potsdam: publish.UP |
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ftubpotsdam |
language |
English |
topic |
ddc:620 Mathematisch-Naturwissenschaftliche Fakultät |
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ddc:620 Mathematisch-Naturwissenschaftliche Fakultät Chen, Jie Günther, Frank (Dr.) Grosse, Guido (Prof. Dr.) Liu, Lin Lin, Hui Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta |
topic_facet |
ddc:620 Mathematisch-Naturwissenschaftliche Fakultät |
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 |
Article in Journal/Newspaper |
author |
Chen, Jie Günther, Frank (Dr.) Grosse, Guido (Prof. Dr.) Liu, Lin Lin, Hui |
author_facet |
Chen, Jie Günther, Frank (Dr.) Grosse, Guido (Prof. Dr.) Liu, Lin Lin, Hui |
author_sort |
Chen, Jie |
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 |
publishDate |
2018 |
url |
https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/52625 https://doi.org/10.3390/rs10071152 |
genre |
Ice lena delta permafrost wedge* |
genre_facet |
Ice lena delta permafrost wedge* |
op_relation |
https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/52625 https://doi.org/10.3390/rs10071152 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/closedAccess |
op_rightsnorm |
CC-BY |
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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1766027679623020544 |