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来源类型Article
规范类型其他
DOI10.1029/2018GL078466
Strong Linkage Between Precipitation Intensity and Monsoon Season Groundwater Recharge in India.
Asoka A; Wada Y; Fishman R; Mishra V
发表日期2018
出处Geophysical Research Letters 45 (11): 5536-5544
出版年2018
语种英语
摘要Groundwater is a lifeline for millions of people in India, which is affected by the year‐to‐year variability of precipitation amount and characteristics (low and high intensity). Precipitation intensity has been observed and projected to change in India. However, the crucial impact of precipitation intensity on groundwater recharge in India remains unknown. Here we use in situ data from more than 5,800 groundwater wells to show that precipitation intensity is strongly linked with groundwater recharge in India. In the northwest and north central India, the monsoon season groundwater recharge is linked with the low‐intensity precipitation, while in South India high‐intensity precipitation is a major driver of groundwater recharge. Observed long‐term changes in precipitation characteristics show a decline in the low‐intensity rain in the northwest and north central India that are strongly driven by sea surface temperature over the Pacific Ocean. Increases in the high‐intensity precipitation in South India are linked with the sea surface temperatures in the Atlantic Ocean. Our results highlight the importance of precipitation intensity for the monsoon season groundwater recharge in India, which can provide insights to sustainably manage rapidly declining groundwater resources in India.
主题Water (WAT)
关键词climate variability groundwater monsoon precipitation intensity recharge
URLhttp://pure.iiasa.ac.at/id/eprint/15358/
来源智库International Institute for Applied Systems Analysis (Austria)
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资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/131222
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Asoka A,Wada Y,Fishman R,et al. Strong Linkage Between Precipitation Intensity and Monsoon Season Groundwater Recharge in India.. 2018.
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