Characterization of Active Layer Thickening Rate over the Northern Qinghai-Tibetan Plateau Permafrost Region Using ALOS Interferometric Synthetic Aperture Radar Data, 2007–2009
The Qinghai-Tibetan plateau (QTP), also known as the Third Pole and the World Water Tower, is the largest and highest plateau with distinct and competing surface and subsurface processes. It is covered by a large layer of discontinuous and sporadic alpine permafrost which has degraded 10% during the...
Published in: | Remote Sensing |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2017
|
Subjects: | |
Online Access: | https://doi.org/10.3390/rs9010084 |
id |
ftmdpi:oai:mdpi.com:/2072-4292/9/1/84/ |
---|---|
record_format |
openpolar |
spelling |
ftmdpi:oai:mdpi.com:/2072-4292/9/1/84/ 2023-08-20T03:59:05+02:00 Characterization of Active Layer Thickening Rate over the Northern Qinghai-Tibetan Plateau Permafrost Region Using ALOS Interferometric Synthetic Aperture Radar Data, 2007–2009 Yuanyuan Jia Jin-Woo Kim C. Shum Zhong Lu Xiaoli Ding Lei Zhang Kamil Erkan Chung-Yen Kuo Kun Shang Kuo-Hsin Tseng Yuchan Yi agris 2017-01-17 application/pdf https://doi.org/10.3390/rs9010084 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/rs9010084 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 9; Issue 1; Pages: 84 permafrost active layer thickness (ALT) AL thickening rate InSAR Qinghai-Tibetan plateau (QTP) Text 2017 ftmdpi https://doi.org/10.3390/rs9010084 2023-07-31T21:01:55Z The Qinghai-Tibetan plateau (QTP), also known as the Third Pole and the World Water Tower, is the largest and highest plateau with distinct and competing surface and subsurface processes. It is covered by a large layer of discontinuous and sporadic alpine permafrost which has degraded 10% during the past few decades. The average active layer thickness (ALT) increase rate is approximately 7.5 cm·yr−1 from 1995 to 2007, based on soil temperature measurements from 10 borehole sites along Qinghai-Tibetan Highway, and approximately 6.3 cm·yr−1, 2006–2010, using soil temperature profiles for 27 monitoring sites along Qinghai-Tibetan railway. In this study, we estimated the ALT and its AL thickening rate in the northern QTP near the railway using ALOS PALSAR L-band small baseline subset interferometric synthetic aperture radar (SBAS-InSAR) data observed land subsidence and the corresponding ALT modeling. The InSAR estimated ALT and AL thickening rate were validated with ground-based observations from the borehole site WD4 within our study region, indicating excellent agreement. We concluded that we have generated high spatial resolution (30 m) and spatially-varying ALT and AL thickening rates, 2007–2009, over approximately an area of 150 km2 of permafrost-covered region in the northern QTP. Text Active layer thickness permafrost MDPI Open Access Publishing Remote Sensing 9 1 84 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
permafrost active layer thickness (ALT) AL thickening rate InSAR Qinghai-Tibetan plateau (QTP) |
spellingShingle |
permafrost active layer thickness (ALT) AL thickening rate InSAR Qinghai-Tibetan plateau (QTP) Yuanyuan Jia Jin-Woo Kim C. Shum Zhong Lu Xiaoli Ding Lei Zhang Kamil Erkan Chung-Yen Kuo Kun Shang Kuo-Hsin Tseng Yuchan Yi Characterization of Active Layer Thickening Rate over the Northern Qinghai-Tibetan Plateau Permafrost Region Using ALOS Interferometric Synthetic Aperture Radar Data, 2007–2009 |
topic_facet |
permafrost active layer thickness (ALT) AL thickening rate InSAR Qinghai-Tibetan plateau (QTP) |
description |
The Qinghai-Tibetan plateau (QTP), also known as the Third Pole and the World Water Tower, is the largest and highest plateau with distinct and competing surface and subsurface processes. It is covered by a large layer of discontinuous and sporadic alpine permafrost which has degraded 10% during the past few decades. The average active layer thickness (ALT) increase rate is approximately 7.5 cm·yr−1 from 1995 to 2007, based on soil temperature measurements from 10 borehole sites along Qinghai-Tibetan Highway, and approximately 6.3 cm·yr−1, 2006–2010, using soil temperature profiles for 27 monitoring sites along Qinghai-Tibetan railway. In this study, we estimated the ALT and its AL thickening rate in the northern QTP near the railway using ALOS PALSAR L-band small baseline subset interferometric synthetic aperture radar (SBAS-InSAR) data observed land subsidence and the corresponding ALT modeling. The InSAR estimated ALT and AL thickening rate were validated with ground-based observations from the borehole site WD4 within our study region, indicating excellent agreement. We concluded that we have generated high spatial resolution (30 m) and spatially-varying ALT and AL thickening rates, 2007–2009, over approximately an area of 150 km2 of permafrost-covered region in the northern QTP. |
format |
Text |
author |
Yuanyuan Jia Jin-Woo Kim C. Shum Zhong Lu Xiaoli Ding Lei Zhang Kamil Erkan Chung-Yen Kuo Kun Shang Kuo-Hsin Tseng Yuchan Yi |
author_facet |
Yuanyuan Jia Jin-Woo Kim C. Shum Zhong Lu Xiaoli Ding Lei Zhang Kamil Erkan Chung-Yen Kuo Kun Shang Kuo-Hsin Tseng Yuchan Yi |
author_sort |
Yuanyuan Jia |
title |
Characterization of Active Layer Thickening Rate over the Northern Qinghai-Tibetan Plateau Permafrost Region Using ALOS Interferometric Synthetic Aperture Radar Data, 2007–2009 |
title_short |
Characterization of Active Layer Thickening Rate over the Northern Qinghai-Tibetan Plateau Permafrost Region Using ALOS Interferometric Synthetic Aperture Radar Data, 2007–2009 |
title_full |
Characterization of Active Layer Thickening Rate over the Northern Qinghai-Tibetan Plateau Permafrost Region Using ALOS Interferometric Synthetic Aperture Radar Data, 2007–2009 |
title_fullStr |
Characterization of Active Layer Thickening Rate over the Northern Qinghai-Tibetan Plateau Permafrost Region Using ALOS Interferometric Synthetic Aperture Radar Data, 2007–2009 |
title_full_unstemmed |
Characterization of Active Layer Thickening Rate over the Northern Qinghai-Tibetan Plateau Permafrost Region Using ALOS Interferometric Synthetic Aperture Radar Data, 2007–2009 |
title_sort |
characterization of active layer thickening rate over the northern qinghai-tibetan plateau permafrost region using alos interferometric synthetic aperture radar data, 2007–2009 |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2017 |
url |
https://doi.org/10.3390/rs9010084 |
op_coverage |
agris |
genre |
Active layer thickness permafrost |
genre_facet |
Active layer thickness permafrost |
op_source |
Remote Sensing; Volume 9; Issue 1; Pages: 84 |
op_relation |
https://dx.doi.org/10.3390/rs9010084 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs9010084 |
container_title |
Remote Sensing |
container_volume |
9 |
container_issue |
1 |
container_start_page |
84 |
_version_ |
1774714414900969472 |