气候变化领域集成服务门户(CCPortal): Significant lake expansion has accelerated permafrost degradation on the Qinghai-Tibet Plateau

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DOI	10.1007/s11629-023-8140-4
	Significant lake expansion has accelerated permafrost degradation on the Qinghai-Tibet Plateau
	Li, Qingpeng; Liu, Wenhui; Liu, Hairui; Zhou, Guanghao; Song, Xianteng; Li, Qing; Luo, Bingnan; Song, Bangxu; Zhang, Qi
发表日期	2024
ISSN	1672-6316
EISSN	1993-0321
起始页码	68
结束页码	83
卷号	21 期号:1
英文摘要	In recent years, lakes on the Qinghai-Tibet Plateau have become more responsive to climate change. In September 2011, Zonag Lake in Hoh Xil experienced sudden drainage, the water eventually flowed into Yanhu Lake, which caused Yanhu Lake to continue to expand. The potential collapse of Yanhu Lake could directly threaten the operational safety of the adjacent Qinghai-Tibet Highway, Qinghai-Tibet Railway. To explore the implications of expanding lakes on the surrounding permafrost, we selected Hoh Xil Yanhu Lake on the Qinghai-Tibet Plateau to study the effect of lake expansion on permafrost degradation. The permafrost degradation in the Yanhu Lake basin from October 2017 to December 2022 was inverted using Sentinel-1 satellite image data and small baseline subset interferometry synthetic aperture radar (SBAS-InSAR) technology. Additionally, permafrost degradation from February 2007 and February 2010 was analyzed using advanced land observing satellite phased array-type L-band synthetic aperture radar (ALOS PALSAR) satellite images and differential interferometric synthetic aperture radar (D-InSAR) technique. The results showed that the permafrost around Yanhu Lake experienced accelerated degradation. Prior to the expansion of Yanhu Lake, the average annual deformation rate along the line of sight (LOS) direction was 6.7 mm/yr. After the expansion, the rate increased to 20.9 mm/yr. The integration of spatial-temporal distribution maps of surface subsidence, Wudaoliang borehole geothermal data, meteorological data, Yanhu Lake surface area changes, and water level changes supports the assertion that the intensified permafrost degradation could be attributed to lake expansion rather than the rising air temperature. Furthermore, permafrost degradation around Yanhu Lake could impact vital infrastructure such as the adjacent Qinghai-Tibet Highway and Qinghai-Tibet Railway.
关键词	Lake expansion SBAS-InSAR D-InSAR Permafrost deformation Qinghai-Tibet Plateau
英文关键词	DYNAMICS
WOS研究方向	Environmental Sciences
WOS记录号	WOS:001152428500011
来源期刊	JOURNAL OF MOUNTAIN SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282578
作者单位	Qinghai University; Qinghai University; China Geological Survey
推荐引用方式 GB/T 7714	Li, Qingpeng,Liu, Wenhui,Liu, Hairui,et al. Significant lake expansion has accelerated permafrost degradation on the Qinghai-Tibet Plateau[J],2024,21(1).
APA	Li, Qingpeng.,Liu, Wenhui.,Liu, Hairui.,Zhou, Guanghao.,Song, Xianteng.,...&Zhang, Qi.(2024).Significant lake expansion has accelerated permafrost degradation on the Qinghai-Tibet Plateau.JOURNAL OF MOUNTAIN SCIENCE,21(1).
MLA	Li, Qingpeng,et al."Significant lake expansion has accelerated permafrost degradation on the Qinghai-Tibet Plateau".JOURNAL OF MOUNTAIN SCIENCE 21.1(2024).