DOI: 10.1016/j.gloplacha.2015.09.007
论文题名: Diagnosing Land Water Storage Variations in Major Indian River Basins using GRACE observations
作者: Soni A. ; Syed T.H.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 133 起始页码: 263
结束页码: 271
语种: 英语
英文关键词: ENSO
; GRACE
; Indian River Basins
; Remote Sensing
; Spatial-Temporal Variability
; Terrestrial Water Storage
Scopus关键词: Climatology
; Earth (planet)
; Geodetic satellites
; Groundwater
; Metals
; Nickel
; Population statistics
; Remote sensing
; Rivers
; Water
; Water conservation
; Watersheds
; ENSO
; GRACE
; Indian rivers
; Spatial temporals
; Terrestrial water storage
; Water resources
; economic development
; El Nino-Southern Oscillation
; freshwater environment
; GRACE
; human activity
; hydrological response
; industrial development
; periodicity
; population growth
; renewable resource
; river basin
; spatial variation
; temporal variation
; terrestrial environment
; water budget
; water storage
; Bay of Bengal
; Ganges Basin
; Godavari Basin
; India
; Krishna Basin
; Mahanadi Basin
英文摘要: Scarcity of freshwater is one of the most critical resource issue the world is facing today. Due to its finite nature, renewable freshwater reserves are under relentless pressure due to population growth, economic development and rapid industrialization. Assessment of Terrestrial Water Storage (TWS), as an unified measure of freshwater reserve, is vital to understand hydrologic and climatic processes controlling its availability. In this study, TWS variations from Gravity Recovery and Climate Experiment (GRACE) satellites are analyzed in conjuction with multi-platform hydrologic observations for the period of 2003-2012. Here, the primary objective is to quantify and attribute the observed short-term variability of TWS and groundwater storage in the largest river basins of India (Ganga, Godavari, Krishna and Mahanadi). Alongside commendable agreement between TWS variations obtained from GRACE and water balance computation, results highlight some of the important deficiencies between the two. While monthly changes in TWS are highly correlated with precipitation, monthly TWS anomalies reveal a 1-2 month lag in their concurrence. Analysis of groundwater storage estimates demonstrate significant decline in the Ganga basin (-1.28 ± 0.20 mm/month) but practically no change in the Mahanadi basin. On the contrary, groundwater storage in Godavari and Krishna basins reveal notable increase at the rate of 0.74 ± 0.21 mm/month and 0.97 ± 0.21 mm/month respectively. Subsequently, in order to assess the influence of quasi-periodic, planetary scale, variations in the Earth's climate system, groundwater storage anomalies are evaluated with reference to ENSO variability. Results manifest that in all the basins, with the exception of Ganga, groundwater storage is dominantly influenced by ENSO, with large decrease (increase) during El Niño (La Niña) events. In the Ganga basin, groundwater storage variations refer to possible amalgamation of human intervention and natural climate variability. © 2015 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84942239390&doi=10.1016%2fj.gloplacha.2015.09.007&partnerID=40&md5=b38e176ce221d59d69872ae7b6cf7ccb
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11482
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Department of Applied Geology, Indian School of Mines, Dhanbad, Jharkhand, India
Recommended Citation:
Soni A.,Syed T.H.. Diagnosing Land Water Storage Variations in Major Indian River Basins using GRACE observations[J]. Global and Planetary Change,2015-01-01,133.