Variations in terrestrial water storage in the Lancang-Mekong river basin from GRACE solutions and land surface model

doi:10.1016/j.jhydrol.2019.124258

	Variations in terrestrial water storage in the Lancang-Mekong river basin from GRACE solutions and land surface model
	Jing, Wenlong 2; Zhao, Xiaodan 2; Yao, Ling 1,3; Jiang, Hao 2; Xu, Jianhui 2; Yang, Ji 2; Li, Yong 2
刊名	JOURNAL OF HYDROLOGY
	2020
卷号	580 页码:15
关键词	GRACE Terrestrial water storage Lancang-Mekong River basin Water balance
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2019.124258
通讯作者	Yao, Ling(yaoling@lreis.ac.cn)
英文摘要	Measurement of regional water resource variations is significant for understanding water cycle and water management. This is especially true for transboundary river basins. This study investigated the terrestrial water storage dynamics of the Lancang-Mekong River basin, which has a total area of 795,000 km(2) and distributed between six countries in Southeast Asia, based on the terrestrial water storage anomalies (TWSA) from the Gravity Recovery and Climate Experiment (GRACE) satellites and the Global Land Data Assimilation System (GLDAS) model. A spatial weighted centroid analysis concept from geographical information science was introduced to track the movement of terrestrial water storage centroid of the basin. And the response of terrestrial water storage dynamics to climate variations throughout the basin was examined by quantifying the correlations of TWSA with a multi-scalar drought index. Results show that during 2003 to 2016, the upstream basin (Lancang River basin) experienced slight decreasing trends (ranging from - 2.45 to 0 km(3)/yr revealed by five different GRACE solutions), and the downstream basin (Mekong River basin) generally did not express statistically significant trends; five GRACE solutions are more consistent in the downstream basin than the upstream basin, and the mascons-based TWSA processed at Jet Propulsion Laboratory (JPL) produced quite different results with the other four solutions. Generally, there are good correlations between GRACE observations and GLDAS model. The TWSA is 1-2 month lagged correlated with precipitation, evapotranspiration, and runoff anomalies, because water from precipitation may take a long period to loss from evapotranspiration and infiltrate into the soil. In general, water storage dynamics are closely correlated with climatic dry and wet conditions at middle-long periods (6-12 months) in the basin, and the correlation coefficients in wet season are generally higher than those in dry season. However, a different pattern was found since 2010: in the 2010-2016 period, correlations between TWSA and the multi-scalar drought index in Lancang River basin reduced relative to the 2003-2009 period but became stronger in Mekong River basin after 2009. The results of this study highlight the differentiation of water storage dynamics' response to the climate variation between upstream and downstream of Lancang-Mekong basin in the period 2010-2016 and the possibility of examining basin storage disturbed by human activities in the basin.
资助项目	National Natural Science Foundation of China[41801362] ; National Natural Science Foundation of China[41771380] ; National Natural Science Foundation of China[41976190] ; Guangdong Provincial Science and Technology Program[2018B030324001] ; GDAS's Project of Science and Technology Development[2016GDASRC-0211] ; GDAS's Project of Science and Technology Development[2017GDASCX-0601] ; GDAS's Project of Science and Technology Development[2017GDASCX-0801] ; GDAS's Project of Science and Technology Development[2017GDASCX-0403] ; GDAS's Project of Science and Technology Development[2018GDASCX-0101] ; GDAS's Project of Science and Technology Development[2018GDASCX-0403] ; GDAS's Project of Science and Technology Development[2019GDASYL-0502001] ; GDAS's Project of Science and Technology Development[2019GDASYL-0301001] ; GDAS's Project of Science and Technology Development[2019GDASYL-0302001] ; GDAS's Project of Science and Technology Development[2019GDASYL-0501001] ; GDAS's Project of Science and Technology Development[2019GDASYL-0401001] ; Guangdong Provincial Agricultural Science and Technology Innovation and Promotion Project in 2018[2018LM2149] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06D336]
WOS关键词	MONITORING AGRICULTURAL DROUGHT ; PRECIPITATION ANALYSIS TMPA ; SOIL-MOISTURE ; GROUNDWATER DEPLETION ; MANN-KENDALL ; CLIMATE ; HYDROPOWER ; TRENDS ; IMPACT ; DYNAMICS
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000509620900013
资助机构	National Natural Science Foundation of China ; Guangdong Provincial Science and Technology Program ; GDAS's Project of Science and Technology Development ; Guangdong Provincial Agricultural Science and Technology Innovation and Promotion Project in 2018 ; Guangdong Innovative and Entrepreneurial Research Team Program
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/132423]
专题	中国科学院地理科学与资源研究所
通讯作者	Yao, Ling
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Guangzhou Inst Geog, Key Lab Guangdong Utilizat Remote Sensing & Geog, Guangdong Open Lab Geospatial Informat Technol &, Guangzhou 510070, Guangdong, Peoples R China 3.Nanjing Normal Univ, Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China
推荐引用方式 GB/T 7714	Jing, Wenlong,Zhao, Xiaodan,Yao, Ling,et al. Variations in terrestrial water storage in the Lancang-Mekong river basin from GRACE solutions and land surface model[J]. JOURNAL OF HYDROLOGY,2020,580:15.
APA	Jing, Wenlong.,Zhao, Xiaodan.,Yao, Ling.,Jiang, Hao.,Xu, Jianhui.,...&Li, Yong.(2020).Variations in terrestrial water storage in the Lancang-Mekong river basin from GRACE solutions and land surface model.JOURNAL OF HYDROLOGY,580,15.
MLA	Jing, Wenlong,et al."Variations in terrestrial water storage in the Lancang-Mekong river basin from GRACE solutions and land surface model".JOURNAL OF HYDROLOGY 580(2020):15.