气候变化领域集成服务门户(CCPortal): Improve the Accuracy of Water Storage Estimation-A Case Study from Two Lakes in the Hohxil Region of North Tibetan Plateau

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DOI	10.3390/rs13020293
	Improve the Accuracy of Water Storage Estimation-A Case Study from Two Lakes in the Hohxil Region of North Tibetan Plateau
	Qiao, Baojin; Ju, Jianting; Zhu, Liping; Chen, Hao; Kai, Jinlei; Kou, Qiangqiang
通讯作者	Ju, JT (通讯作者)
发表日期	2021
EISSN	2072-4292
卷号	13 期号:2
英文摘要	Lake water storage is essential information for lake research. Previous studies usually used bathymetric data to acquire underwater topography by interpolation method, and to therefore estimate water storage. However, due to the large area of Tibetan Plateau (TP) lakes, the method of bathymetry was challenging to cover the whole region of one lake, and the accuracy of the underwater topography, in which no bathymetric data covered, was low, which resulted in a comparatively large error of lake water storage estimation and its change. In this study, we used Shuttle Radar Topography Mission (SRTM) and in situ bathymetric data to establish the underwater topography of Hohxil Lake (HL) and Lexiewudan Lake (LL) in the Hohxil Region of North TP and estimate and analyzed the changes of lake level and water storage. The results showed HL and LL's water storage was 5.12 km(3) and 5.31 km(3) in 2019, respectively, and their level increased by 0.5 m/y and 0.57 m/y during 2003-2018, respectively. They were consistent with those (0.5 m/y and 0.5 m/y) from altimetry data, and they were much more accurate than those results (0.077 m/y and 0.156 m/y) from bathymetric data. These findings indicated that this method could improve the accuracy of lake water storage and change estimation. We estimated water storage of two lakes by combining with multitemporal Landsat images, which had doubled since 1976. Our results suggested that the increasing precipitation may dominate the lake expansion by comparing with the change of temperature and precipitation and the increasing glacial meltwater contributed approximately 4.8% and 10.7% to lake expansion of HL and LL during 2000-2019 based on the glacier mass balance data, respectively.
关键词	GLACIER MASS BALANCES LEVEL CHANGES CLIMATE EVOLUTION EXPANSION BASIN CO
英文关键词	lake water storage; bathymetric data; SRTM; precipitation; glacial meltwater
语种	英语
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:000611549500001
来源期刊	REMOTE SENSING
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260274
推荐引用方式 GB/T 7714	Qiao, Baojin,Ju, Jianting,Zhu, Liping,et al. Improve the Accuracy of Water Storage Estimation-A Case Study from Two Lakes in the Hohxil Region of North Tibetan Plateau[J]. 中国科学院青藏高原研究所,2021,13(2).
APA	Qiao, Baojin,Ju, Jianting,Zhu, Liping,Chen, Hao,Kai, Jinlei,&Kou, Qiangqiang.(2021).Improve the Accuracy of Water Storage Estimation-A Case Study from Two Lakes in the Hohxil Region of North Tibetan Plateau.REMOTE SENSING,13(2).
MLA	Qiao, Baojin,et al."Improve the Accuracy of Water Storage Estimation-A Case Study from Two Lakes in the Hohxil Region of North Tibetan Plateau".REMOTE SENSING 13.2(2021).