气候变化领域集成服务门户(CCPortal): Strong Influence of Changes in Terrestrial Water Storage on Flood Potential in India

CCPortal

DOI	10.1029/2020JD033566
	Strong Influence of Changes in Terrestrial Water Storage on Flood Potential in India
	Shah D.; Mishra V.
发表日期	2021
ISSN	2169897X
卷号	126 期号:1
英文摘要	Rapid groundwater depletion due to anthropogenic pumping for irrigation poses enormous challenges on socio-economic, agricultural, and financial spheres of India. However, the role of groundwater depletion on flood potential in India remains unexplored. We examine the role of changes in terrestrial water and groundwater storage on flood potential using in situ and Gravity Recovery and Climate Experiment (GRACE) satellites observations and the simulations from the Variable Infiltration Capacity (VIC) model. Terrestrial Water Storage (TWS) has declined significantly (p value <0.05) with a rate of −0.63 cm yr−1 during 2002–2016 in the Indian subcontinent. Ganga, Brahmaputra, Indus, Brahmani, and Subernarekha river basins experienced a significant decline while Godavari, Mahi, Tapi, and Narmada basins witnessed a substantial increase in TWS during 2002–2016. The relative contribution of TWS on flood potential is higher than precipitation for the majority of the subcontinental river basins. The significant increase/decline in TWS in the subcontinental river basins is driven by the changes in groundwater storage either due to groundwater pumping or natural variability in climate. A significant decrease (increase) in the flood potential in Ganga, Brahmaputra, and Indus (Godavari, Narmada, and Tapi) is linked to the changes in groundwater storage, which shows the influence of groundwater storage variability beyond water and food security in the region. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Indian sub-continent; precipitation; relative contribution; 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/185554
作者单位	Department of Civil Engineering, Indian Institute of Technology, Gandhinagar, India
推荐引用方式 GB/T 7714	Shah D.,Mishra V.. Strong Influence of Changes in Terrestrial Water Storage on Flood Potential in India[J],2021,126(1).
APA	Shah D.,&Mishra V..(2021).Strong Influence of Changes in Terrestrial Water Storage on Flood Potential in India.Journal of Geophysical Research: Atmospheres,126(1).
MLA	Shah D.,et al."Strong Influence of Changes in Terrestrial Water Storage on Flood Potential in India".Journal of Geophysical Research: Atmospheres 126.1(2021).