Glacier Mass Balance Pattern and Its Variation Mechanism in the West Kunlun Mountains in Tibetan Plateau

doi:10.3390/rs14112634

IOCAS-IR > 海洋环流与波动重点实验室

	Glacier Mass Balance Pattern and Its Variation Mechanism in the West Kunlun Mountains in Tibetan Plateau
	Gao, Le 1,2,3; Yang, Xiaofeng 4; Qi, Jifeng 1,2,3; Chen, Wenfeng 5
	2022-06-01
发表期刊	REMOTE SENSING
卷号	14 期号:11 页码:16
通讯作者	Yang, Xiaofeng(yangxf@radi.ac.cn)
摘要	Mass balance observations are beneficial for assessing climate change in different world regions. This study analyzed the glacier elevation change, ice flux divergence, and surface mass balance (SMB) in the West Kunlun Mountains (WKM) on the Tibetan Plateau using remote sensing data, including satellite altimetry, glacier surface velocity, and thickness fields. Seventeen local glaciers were examined in detail and showed varying surface elevation changes from -0.39 +/- 0.11 to 0.83 +/- 0.10 m/a. Overall, we obtained a reasonably rapid elevation trend of 0.21 +/- 0.14 m/a. By combining the ice flux divergence and surface mass balance, the overall thickness change of the WKM glacier over time is almost zero, and the WKM glacier shows a positive mass balance of 0.21 +/- 0.98 m/a. Moreover, the ice flux divergence is more significant on the ice tongue than in the flat region due to the more considerable gradient of surface velocity and thickness fields. We found that glacier heterogeneity dynamics were associated with a surging dynamic mechanism concentrated in the glacier tongue and were induced by inner terrain instabilities. The glacier surging causes a drastic drop in glacier elevation but does not cause a glacier mass gain or loss, and it has an enhanced effect on the ice flux divergence. Therefore, glacier surging is the main reason for the decline of the two glaciers monitored. In addition, the long-term meteorological data analysis found that, since 2000, the air temperature warming hiatus may have balanced the three glaciers, and significantly increasing precipitation variation may cause the glacier to thicken the most.
关键词	satellite altimetry glacier elevation change glacier inner terrain glacier surging ice flux divergence surface mass balance climate change
DOI	10.3390/rs14112634
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42090044] ; National Natural Science Foundation of China[U2006211] ; Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao)[2022QNLM050301-2] ; Natural Science Foundation of Shandong Province, China[ZR2021MD022] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19060101] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; Major scientific and technological innovation projects in Shandong Province[2019JZZY010102] ; CAS Program[Y9KY04101L]
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000809005700001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/179525
专题	海洋环流与波动重点实验室
通讯作者	Yang, Xiaofeng
作者单位	1.Chinese Acad Sci, CAS Key Laboratary Ocean Circulat & Waves, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, 1 Wenhai Rd, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China 5.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Resource, Beijing 100101, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Gao, Le,Yang, Xiaofeng,Qi, Jifeng,et al. Glacier Mass Balance Pattern and Its Variation Mechanism in the West Kunlun Mountains in Tibetan Plateau[J]. REMOTE SENSING,2022,14(11):16.
APA	Gao, Le,Yang, Xiaofeng,Qi, Jifeng,&Chen, Wenfeng.(2022).Glacier Mass Balance Pattern and Its Variation Mechanism in the West Kunlun Mountains in Tibetan Plateau.REMOTE SENSING,14(11),16.
MLA	Gao, Le,et al."Glacier Mass Balance Pattern and Its Variation Mechanism in the West Kunlun Mountains in Tibetan Plateau".REMOTE SENSING 14.11(2022):16.

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