气候变化领域集成服务门户(CCPortal): Anthropogenic and Climate Contributions on the Changes in Terrestrial Water Storage in India

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DOI	10.1029/2020JD032470
	Anthropogenic and Climate Contributions on the Changes in Terrestrial Water Storage in India
	Asoka A.; Mishra V.
发表日期	2020
ISSN	2169897X
卷号	125 期号:10
英文摘要	Despite the rapid depletion of groundwater and significant changes in surface water storage, the role of anthropogenic and climatic factors on terrestrial water storage (TWS) in India remains largely unexplored. Here, we provide a hydrologic framework based on the Variable Infiltration Capacity-SIMple Groundwater Model (VIC-SIMGM) and Gravity Recovery and Climate Experiment (GRACE) data sets to estimate the contribution of climate variability and anthropogenic groundwater pumping on TWS in the Indian basins. The VIC-SIMGM model was satisfactorily calibrated and evaluated against observed monthly streamflow and groundwater anomalies for the 17 river basins in India. The modeling setup combined with the GRACE data can be used for understanding the role of climate variability on surface and groundwater (shallow) storage in India. A significantly high correlation between TWS anomaly from GRACE (TWSAGRACE) and the VIC-SIMGM (TWSAVIC) was found in the majority of India except in northwest India. The negative correlation in northwest India is primarily due to considerable groundwater pumping for irrigation. Groundwater storage anomaly explains a significant variability of GRACETWSA in India, indicating the influence of anthropogenic groundwater pumping for irrigation. However, in the absence of anthropogenic influence, soil moisture is the major contributor to TWSA in the majority of India. The net anthropogenic depletion of TWS in north India is considerably higher than that estimated from the GRACE as the increase in precipitation has, during the recent decades, contributed to slowing down the declining rate of TWS. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	drought; GRACE; groundwater; TWS; VIC
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186010
作者单位	Civil Engineering and Earth Sciences, Indian Institute of Technology, Gandhinagar, India
推荐引用方式 GB/T 7714	Asoka A.,Mishra V.. Anthropogenic and Climate Contributions on the Changes in Terrestrial Water Storage in India[J],2020,125(10).
APA	Asoka A.,&Mishra V..(2020).Anthropogenic and Climate Contributions on the Changes in Terrestrial Water Storage in India.Journal of Geophysical Research: Atmospheres,125(10).
MLA	Asoka A.,et al."Anthropogenic and Climate Contributions on the Changes in Terrestrial Water Storage in India".Journal of Geophysical Research: Atmospheres 125.10(2020).