Monitoring the Thaw Slump-Derived Thermokarst in the Qinghai-Tibet Plateau Using Satellite SAR Interferometry
Thaw slumps are well-developed within a 10 km wide zone along the Qinghai-Tibet engineering corridor, especially along the Qinghai-Tibet highway and railway. Previous studies have focused on thaw slump instability such as its origin development, headwall retrogression rate, failure scale, and therma...
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fthindawi:oai:hindawi.com:10.1155/2019/1698432 2023-05-15T17:57:54+02:00 Monitoring the Thaw Slump-Derived Thermokarst in the Qinghai-Tibet Plateau Using Satellite SAR Interferometry Bo Hu Yang Wu Xingfu Zhang Bing Yang Junyu Chen Hui Li Xiongle Chen Zhiwei Chen 2019 https://doi.org/10.1155/2019/1698432 en eng Journal of Sensors https://doi.org/10.1155/2019/1698432 Copyright © 2019 Bo Hu et al. Research Article 2019 fthindawi https://doi.org/10.1155/2019/1698432 2019-05-26T12:19:16Z Thaw slumps are well-developed within a 10 km wide zone along the Qinghai-Tibet engineering corridor, especially along the Qinghai-Tibet highway and railway. Previous studies have focused on thaw slump instability such as its origin development, headwall retrogression rate, failure scale, and thermal regime, yet the intrinsic dynamic process of surface movement is relatively less known. In this study, we used InSAR based on the L-band ALOS PALSAR images acquired from January 2007 to October 2010 to investigate the distribution of thaw-induced slope failures containing retrogressive thaw slumps and active layer detachment failures along the Qinghai-Tibet highway (QTH). Our InSAR analysis reveals that the maximum annual average sedimentation rates are even up to -35 mm·yr−1 in the slope direction to the K3035 thaw slump, and the K3035W active layer detachment failure developed on the west side of K3035. The distribution, failure extent, and stability of the slope failures obtained by our InSAR analysis all agree well with the field investigations. Our study illustrates that InSAR is an effective tool for studying the distribution and processes of the thaw slump-derived thermokarst and provides useful references for evaluating permafrost degradation in response to climate warming and external disturbance on the Qinghai-Tibet plateau. Article in Journal/Newspaper permafrost Thermokarst Hindawi Publishing Corporation Journal of Sensors 2019 1 8 |
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Hindawi Publishing Corporation |
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English |
description |
Thaw slumps are well-developed within a 10 km wide zone along the Qinghai-Tibet engineering corridor, especially along the Qinghai-Tibet highway and railway. Previous studies have focused on thaw slump instability such as its origin development, headwall retrogression rate, failure scale, and thermal regime, yet the intrinsic dynamic process of surface movement is relatively less known. In this study, we used InSAR based on the L-band ALOS PALSAR images acquired from January 2007 to October 2010 to investigate the distribution of thaw-induced slope failures containing retrogressive thaw slumps and active layer detachment failures along the Qinghai-Tibet highway (QTH). Our InSAR analysis reveals that the maximum annual average sedimentation rates are even up to -35 mm·yr−1 in the slope direction to the K3035 thaw slump, and the K3035W active layer detachment failure developed on the west side of K3035. The distribution, failure extent, and stability of the slope failures obtained by our InSAR analysis all agree well with the field investigations. Our study illustrates that InSAR is an effective tool for studying the distribution and processes of the thaw slump-derived thermokarst and provides useful references for evaluating permafrost degradation in response to climate warming and external disturbance on the Qinghai-Tibet plateau. |
format |
Article in Journal/Newspaper |
author |
Bo Hu Yang Wu Xingfu Zhang Bing Yang Junyu Chen Hui Li Xiongle Chen Zhiwei Chen |
spellingShingle |
Bo Hu Yang Wu Xingfu Zhang Bing Yang Junyu Chen Hui Li Xiongle Chen Zhiwei Chen Monitoring the Thaw Slump-Derived Thermokarst in the Qinghai-Tibet Plateau Using Satellite SAR Interferometry |
author_facet |
Bo Hu Yang Wu Xingfu Zhang Bing Yang Junyu Chen Hui Li Xiongle Chen Zhiwei Chen |
author_sort |
Bo Hu |
title |
Monitoring the Thaw Slump-Derived Thermokarst in the Qinghai-Tibet Plateau Using Satellite SAR Interferometry |
title_short |
Monitoring the Thaw Slump-Derived Thermokarst in the Qinghai-Tibet Plateau Using Satellite SAR Interferometry |
title_full |
Monitoring the Thaw Slump-Derived Thermokarst in the Qinghai-Tibet Plateau Using Satellite SAR Interferometry |
title_fullStr |
Monitoring the Thaw Slump-Derived Thermokarst in the Qinghai-Tibet Plateau Using Satellite SAR Interferometry |
title_full_unstemmed |
Monitoring the Thaw Slump-Derived Thermokarst in the Qinghai-Tibet Plateau Using Satellite SAR Interferometry |
title_sort |
monitoring the thaw slump-derived thermokarst in the qinghai-tibet plateau using satellite sar interferometry |
publisher |
Journal of Sensors |
publishDate |
2019 |
url |
https://doi.org/10.1155/2019/1698432 |
genre |
permafrost Thermokarst |
genre_facet |
permafrost Thermokarst |
op_relation |
https://doi.org/10.1155/2019/1698432 |
op_rights |
Copyright © 2019 Bo Hu et al. |
op_doi |
https://doi.org/10.1155/2019/1698432 |
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Journal of Sensors |
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2019 |
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1 |
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8 |
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1766166405661589504 |