Satellite-derived surface and sub-surface water storage in the Ganges–Brahmaputra River Basin
Study region: The Ganges–Brahmaputra (GB), a major river basin of the Indian Sub-Continent (ISC), is the host of more than 700 millions people. Study focus: In addition to monsoons and strong climate variability, GB is facing growing demands for freshwater availability by a continually growing popul...
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doaj-23e2acbd78a448d18502489ff4b6a3572020-11-24T23:56:02ZengElsevierJournal of Hydrology: Regional Studies2214-58182015-09-014PA153510.1016/j.ejrh.2015.03.004Satellite-derived surface and sub-surface water storage in the Ganges–Brahmaputra River BasinFabrice Papa0Frédéric Frappart1Yoann Malbeteau2Mohammad Shamsudduha3Venugopal Vuruputur4Muddu Sekhar5Guillaume Ramillien6Catherine Prigent7Filipe Aires8Rajesh Kumar Pandey9Sujit Bala10Stephane Calmant11Institut de Recherche pour le Developpement, LEGOS, IRD/CNES/CNRS/UPS, Toulouse, FranceUniversité de Toulouse, UPS, OMP-GET (UPS), Toulouse, FranceUniversité de Toulouse, CESBIO, Toulouse, FranceInstitute for Risk and Disaster Reduction, University College London, London, UKCenter for Oceanic and Atmospheric Sciences, Indian Institute of Science, Bangalore, IndiaDepartment of Civil Engineering and IFCWS, Indo-French Cell for Water Sciences, Indian Institute of Science, Bangalore, IndiaCNRS, Géosciences Environement Toulouse, OMP-GET, Toulouse, FranceLERMA, CNRS, Observatoire de Paris, Paris, FranceLERMA, CNRS, Observatoire de Paris, Paris, FranceCSIR – National Geophysical Research Institute (NGRI), Hyderabad, IndiaInstitute of Water and Flood Management, Bangladesh University of Engineering and Technology, Dhaka, BangladeshInstitut de Recherche pour le Developpement, LEGOS, IRD/CNES/CNRS/UPS, Toulouse, FranceStudy region: The Ganges–Brahmaputra (GB), a major river basin of the Indian Sub-Continent (ISC), is the host of more than 700 millions people. Study focus: In addition to monsoons and strong climate variability, GB is facing growing demands for freshwater availability by a continually growing population and rapidly developing of agricultural and industrial sectors. The management of water resources is thus of highest priority and, in the context of current over-abstraction of groundwater, accurate estimates of terrestrial freshwater storage are essential. We propose a multi-satellite approach to estimate surface freshwater storage (SWS) and subsurface water storage (SSWS, groundwater + soil moisture) variations over GB. New hydrological insights: Basin-scale monthly SWS variations for the period 2003–2007 show a mean annual amplitude of ∼410 km3, contributing to about 45% of the Gravity Recovery And Climate Experiment (GRACE)-derived total water storage variations (TWS). During the drought-like conditions in 2006, we estimate that the SWS deficit over the entire GB basin in July–August–September was about 30% as compared to other years. The SWS variations are then used to decompose the GB GRACE-derived TWS and isolate the variations of SSWS whose mean annual amplitude is estimated to be ∼550 km3. This new dataset of water storage variations represent an unprecedented source of information for hydrological and climate modeling studies of the ISC.http://www.sciencedirect.com/science/article/pii/S2214581815000221Ganges–BrahmaputraSurface water storageSub-surface water storageRemote sensingENVISAT altimetryGRACE |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fabrice Papa Frédéric Frappart Yoann Malbeteau Mohammad Shamsudduha Venugopal Vuruputur Muddu Sekhar Guillaume Ramillien Catherine Prigent Filipe Aires Rajesh Kumar Pandey Sujit Bala Stephane Calmant |
spellingShingle |
Fabrice Papa Frédéric Frappart Yoann Malbeteau Mohammad Shamsudduha Venugopal Vuruputur Muddu Sekhar Guillaume Ramillien Catherine Prigent Filipe Aires Rajesh Kumar Pandey Sujit Bala Stephane Calmant Satellite-derived surface and sub-surface water storage in the Ganges–Brahmaputra River Basin Journal of Hydrology: Regional Studies Ganges–Brahmaputra Surface water storage Sub-surface water storage Remote sensing ENVISAT altimetry GRACE |
author_facet |
Fabrice Papa Frédéric Frappart Yoann Malbeteau Mohammad Shamsudduha Venugopal Vuruputur Muddu Sekhar Guillaume Ramillien Catherine Prigent Filipe Aires Rajesh Kumar Pandey Sujit Bala Stephane Calmant |
author_sort |
Fabrice Papa |
title |
Satellite-derived surface and sub-surface water storage in the Ganges–Brahmaputra River Basin |
title_short |
Satellite-derived surface and sub-surface water storage in the Ganges–Brahmaputra River Basin |
title_full |
Satellite-derived surface and sub-surface water storage in the Ganges–Brahmaputra River Basin |
title_fullStr |
Satellite-derived surface and sub-surface water storage in the Ganges–Brahmaputra River Basin |
title_full_unstemmed |
Satellite-derived surface and sub-surface water storage in the Ganges–Brahmaputra River Basin |
title_sort |
satellite-derived surface and sub-surface water storage in the ganges–brahmaputra river basin |
publisher |
Elsevier |
series |
Journal of Hydrology: Regional Studies |
issn |
2214-5818 |
publishDate |
2015-09-01 |
description |
Study region: The Ganges–Brahmaputra (GB), a major river basin of the Indian Sub-Continent (ISC), is the host of more than 700 millions people.
Study focus: In addition to monsoons and strong climate variability, GB is facing growing demands for freshwater availability by a continually growing population and rapidly developing of agricultural and industrial sectors. The management of water resources is thus of highest priority and, in the context of current over-abstraction of groundwater, accurate estimates of terrestrial freshwater storage are essential. We propose a multi-satellite approach to estimate surface freshwater storage (SWS) and subsurface water storage (SSWS, groundwater + soil moisture) variations over GB.
New hydrological insights: Basin-scale monthly SWS variations for the period 2003–2007 show a mean annual amplitude of ∼410 km3, contributing to about 45% of the Gravity Recovery And Climate Experiment (GRACE)-derived total water storage variations (TWS). During the drought-like conditions in 2006, we estimate that the SWS deficit over the entire GB basin in July–August–September was about 30% as compared to other years. The SWS variations are then used to decompose the GB GRACE-derived TWS and isolate the variations of SSWS whose mean annual amplitude is estimated to be ∼550 km3. This new dataset of water storage variations represent an unprecedented source of information for hydrological and climate modeling studies of the ISC. |
topic |
Ganges–Brahmaputra Surface water storage Sub-surface water storage Remote sensing ENVISAT altimetry GRACE |
url |
http://www.sciencedirect.com/science/article/pii/S2214581815000221 |
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