干旱区生态环境知识资源中心(Arid): Downscaling simulation of groundwater storage in the Tarim River basin in northwest China based on GRACE data

Arid

DOI	10.1016/j.pce.2021.103042
	Downscaling simulation of groundwater storage in the Tarim River basin in northwest China based on GRACE data
	Zuo, Jingping; Xu, Jianhua; Chen, Yaning; Li, Weihong
通讯作者	Xu, JH (corresponding author), East China Normal Univ, Key Lab Geog Informat Sci, Minist Educ, Shanghai 200241, Peoples R China.
来源期刊	PHYSICS AND CHEMISTRY OF THE EARTH
ISSN	1474-7065
EISSN	1873-5193
出版年	2021
卷号	123
英文摘要	Groundwater plays an important role in ecological systems. However, it is difficult to investigate the spatiotemporal changes in groundwater storage (GWS) in the arid areas of Northwest China (NC) due to the limited observation data. Selecting the Tarim River Basin (TRB) in NC, this paper analyzed the variations in GWS and its relationships with climate factors based on downscaling the GRACE data (1 km x 1 km). We used random forest regression (RFR) to establish a model for GWS downscaling simulation by the grid data of GRACE-derived GWS, vegetation index and temperature. We also tested the validity of the downscaled results by comparing the errors between the downscaled GWS and the observed groundwater level by statistical indexes. The results showed that the GWS in the TRB mainly presented decreases from 2003 to 2016, with a significant decline in the southern Tianshan Mountains. The decreasing amplitude of GWS gradually weakened from north to south, and the fluctuations in the mountains were stronger than those in the central basin. The GWS changes presented seasonal differences, with strong decreases in summer and autumn but slight decreases in spring and winter. We also found that GWS in the TRB was more affected by temperature. The impact of precipitation on GWS changes was relatively weak, while temperature and evaporation had relatively significant influences on GWS changes. The negative effect of temperature on GWS in mountainous areas was still noticeable after a lag time of 1-4 months. The development of agricultural land and groundwater exploitation affected GWS changes.
英文关键词	Downscaling Simulation Groundwater storage Variation GRACE Tarim river basin
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000685416600001
WOS关键词	TERRESTRIAL WATER STORAGE ; CLIMATE-CHANGE ; SOIL-MOISTURE ; ARID REGION ; VEGETATION ; XINJIANG ; MODEL ; DYNAMICS ; PRECIPITATION ; RESOURCES
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364314
作者单位	[Zuo, Jingping; Xu, Jianhua] East China Normal Univ, Key Lab Geog Informat Sci, Minist Educ, Shanghai 200241, Peoples R China; [Zuo, Jingping; Xu, Jianhua] East China Normal Univ, Res Ctr East West Cooperat China, Shanghai 200241, Peoples R China; [Chen, Yaning; Li, Weihong] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Zuo, Jingping,Xu, Jianhua,Chen, Yaning,et al. Downscaling simulation of groundwater storage in the Tarim River basin in northwest China based on GRACE data[J]. 中国科学院新疆生态与地理研究所,2021,123.
APA	Zuo, Jingping,Xu, Jianhua,Chen, Yaning,&Li, Weihong.(2021).Downscaling simulation of groundwater storage in the Tarim River basin in northwest China based on GRACE data.PHYSICS AND CHEMISTRY OF THE EARTH,123.
MLA	Zuo, Jingping,et al."Downscaling simulation of groundwater storage in the Tarim River basin in northwest China based on GRACE data".PHYSICS AND CHEMISTRY OF THE EARTH 123(2021).