Surface deformation detected by the space-observed small baseline SAR interferometry over permafrost environment in Tibet Plateau, China
The evolution of permafrost and the active layer is highly related to climate change because of its feedback effects involving water and carbon storage. In this study, we firstly examined the relationship of regional water balance, geomorphological process and anthropogenic activities by means of Sm...
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ftcopernicus:oai:publications.copernicus.org:tcd16756 2023-05-15T17:56:02+02:00 Surface deformation detected by the space-observed small baseline SAR interferometry over permafrost environment in Tibet Plateau, China Chen, F. Lin, H. 2018-09-26 application/pdf https://doi.org/10.5194/tcd-6-4071-2012 https://tc.copernicus.org/preprints/tc-2012-137/ eng eng doi:10.5194/tcd-6-4071-2012 https://tc.copernicus.org/preprints/tc-2012-137/ eISSN: 1994-0424 Text 2018 ftcopernicus https://doi.org/10.5194/tcd-6-4071-2012 2020-07-20T16:25:42Z The evolution of permafrost and the active layer is highly related to climate change because of its feedback effects involving water and carbon storage. In this study, we firstly examined the relationship of regional water balance, geomorphological process and anthropogenic activities by means of Small Baseline Synthetic Aperture Radar Interferometry (SB-InSAR) to monitor the surface movements overlaid on the permafrost of Tibet Plateau (TP), China, using 3.5-yr observation span of L-band ALOS PALSAR data (June, 2007 to December, 2010). The estimated displacements (primarily in the range of −30 mm yr −1 to 30 mm yr −1 ) and time-series implied evolutions of the active layer and permafrost beneath. The motion trend along slopes was complicated, and thus interdisciplinary interpretations were required. Water level variations of inland lakes were then detected, although further investigations were required for validation. Anthropogenic influences on this frail permafrost environment were significant, proved by the remarkable surface settlement along the embankment of Qinghai-Tibet Railway. Consequently, it is crucial and necessary to monitor this arid and cold plateau owing to the combination of climate change, geo-hazards prediction as well as the regional sustainable development. Text permafrost Copernicus Publications: E-Journals |
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Open Polar |
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Copernicus Publications: E-Journals |
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English |
description |
The evolution of permafrost and the active layer is highly related to climate change because of its feedback effects involving water and carbon storage. In this study, we firstly examined the relationship of regional water balance, geomorphological process and anthropogenic activities by means of Small Baseline Synthetic Aperture Radar Interferometry (SB-InSAR) to monitor the surface movements overlaid on the permafrost of Tibet Plateau (TP), China, using 3.5-yr observation span of L-band ALOS PALSAR data (June, 2007 to December, 2010). The estimated displacements (primarily in the range of −30 mm yr −1 to 30 mm yr −1 ) and time-series implied evolutions of the active layer and permafrost beneath. The motion trend along slopes was complicated, and thus interdisciplinary interpretations were required. Water level variations of inland lakes were then detected, although further investigations were required for validation. Anthropogenic influences on this frail permafrost environment were significant, proved by the remarkable surface settlement along the embankment of Qinghai-Tibet Railway. Consequently, it is crucial and necessary to monitor this arid and cold plateau owing to the combination of climate change, geo-hazards prediction as well as the regional sustainable development. |
format |
Text |
author |
Chen, F. Lin, H. |
spellingShingle |
Chen, F. Lin, H. Surface deformation detected by the space-observed small baseline SAR interferometry over permafrost environment in Tibet Plateau, China |
author_facet |
Chen, F. Lin, H. |
author_sort |
Chen, F. |
title |
Surface deformation detected by the space-observed small baseline SAR interferometry over permafrost environment in Tibet Plateau, China |
title_short |
Surface deformation detected by the space-observed small baseline SAR interferometry over permafrost environment in Tibet Plateau, China |
title_full |
Surface deformation detected by the space-observed small baseline SAR interferometry over permafrost environment in Tibet Plateau, China |
title_fullStr |
Surface deformation detected by the space-observed small baseline SAR interferometry over permafrost environment in Tibet Plateau, China |
title_full_unstemmed |
Surface deformation detected by the space-observed small baseline SAR interferometry over permafrost environment in Tibet Plateau, China |
title_sort |
surface deformation detected by the space-observed small baseline sar interferometry over permafrost environment in tibet plateau, china |
publishDate |
2018 |
url |
https://doi.org/10.5194/tcd-6-4071-2012 https://tc.copernicus.org/preprints/tc-2012-137/ |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
eISSN: 1994-0424 |
op_relation |
doi:10.5194/tcd-6-4071-2012 https://tc.copernicus.org/preprints/tc-2012-137/ |
op_doi |
https://doi.org/10.5194/tcd-6-4071-2012 |
_version_ |
1766164096746520576 |