气候变化领域集成服务门户(CCPortal): The Dynamic Changes of Lake Issyk-Kul from 1958 to 2020 Based on Multi-Source Satellite Data

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DOI	10.3390/rs14071575
	The Dynamic Changes of Lake Issyk-Kul from 1958 to 2020 Based on Multi-Source Satellite Data
	Zhang, Yujie; Wang, Ninglian; Yang, Xuewen; Mao, Zhonglei
通讯作者	Wang, NL (通讯作者)
发表日期	2022
EISSN	2072-4292
卷号	14 期号:7
英文摘要	Lake Issyk-Kul is the largest alpine lake in arid Central Asia. In recent years, the lake has become a subject of special concern due to the dramatic fluctuations in its water level. In this study, the long-term continuous changes in the water level of Lake Issyk-Kul were derived from hydro-meteorological stations, CryoSat-2, and ICESat-2 satellites. Changes in area were analyzed by the Joint Research Centre (JRC) Global Surface Water (GSW) dataset based on the Google Earth Engine and the variations in water volume were estimated by an empirical formula. The results indicate that the water level of Lake Issyk-Kul fluctuated between 1606.06 m and 1608.32 m during 1958-2020, showing a slight decrease of 0.02 m/year on average. The water level first experienced a significant decreasing trend of 0.05 m/year from 1958 to 1998, and then began to rise rapidly by 0.10 m/year during 1998-2006, followed by a fluctuating decline after 2006. The area of Lake Issyk-Kul exhibited a downward trend before 1998, then a rapid expansion during 1998-2006, and short-term fluctuations in decline thereafter. Meanwhile, changes in water volume of Lake Issyk-Kul followed a similar pattern of variations in water level and area. According to comprehensive analyses, the continuous downward trend of the water level before 1998 was primarily affected by substantial anthropogenic water consumption in the basin. However, since the 21st century, the increases in precipitation and glacier meltwater and the reduced water consumption have collectively facilitated the short-term recovery of Lake Issyk-Kul in water level, area, and water volume.
关键词	DIFFERENCE WATER INDEX SURFACE-WATER CLIMATE-CHANGE LEVEL CHANGES LANDSAT DATA CRYOSAT-2 ALTIMETRY TIBETAN LAKES ICE IMPACTS STORAGE
英文关键词	Lake Issyk-Kul; multisource satellite data; Google Earth Engine; water level; water area; water volume
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:000783110900001
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/260575
推荐引用方式 GB/T 7714	Zhang, Yujie,Wang, Ninglian,Yang, Xuewen,et al. The Dynamic Changes of Lake Issyk-Kul from 1958 to 2020 Based on Multi-Source Satellite Data[J]. 中国科学院青藏高原研究所,2022,14(7).
APA	Zhang, Yujie,Wang, Ninglian,Yang, Xuewen,&Mao, Zhonglei.(2022).The Dynamic Changes of Lake Issyk-Kul from 1958 to 2020 Based on Multi-Source Satellite Data.REMOTE SENSING,14(7).
MLA	Zhang, Yujie,et al."The Dynamic Changes of Lake Issyk-Kul from 1958 to 2020 Based on Multi-Source Satellite Data".REMOTE SENSING 14.7(2022).