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Using GRACE to quantify the depletion of terrestrial water storage in Northeastern Brazil: The Urucuia Aquifer System

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dc.contributor.authorGonçalves, Roger D. [UNESP]
dc.contributor.authorStollberg, Reiner
dc.contributor.authorWeiss, Holger
dc.contributor.authorChang, Hung K. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionHelmholtz Centre for Environmental Research – UFZ
dc.contributor.institutionFugro Germany Land GmbH
dc.date.accessioned2020-12-12T01:08:46Z
dc.date.available2020-12-12T01:08:46Z
dc.date.issued2020-02-25
dc.description.abstractCovering a plateau area of approximately 125,000 km2, the Urucuia Aquifer System (UAS) represents a national strategic water resource in the drought-stricken Northeastern part of Brazil. Variations in terrestrial water storage (TWS) extracted using a three-model-ensemble from the Gravity Recovery and Climate Experiment (GRACE) mission showed a negative balance equal to water stress. Monthly GRACE-derived water storage changes from 2002 to 2014 were compared with those derived from an independent hydrologic water balance of the region using in situ measurements and estimated evapotranspiration rates. Trend analyses revealed a TWS depletion rate of 6.5 ± 2.6 mm yr−1, but no significant decline in precipitation as observed from available data records. Water storage depletion was found to be driven by anthropogenic impacts rather than by natural climatic variability. The obtained results demonstrate that GRACE is able to adequately capture water storage changes at the subregional scale, particularly during dry seasons.en
dc.description.affiliationSão Paulo State University UNESP Environmental Studies Center (CEA) and Basin Studies Laboratory (LEBAC)
dc.description.affiliationHelmholtz Centre for Environmental Research – UFZ
dc.description.affiliationFugro Germany Land GmbH
dc.description.affiliationSão Paulo State University UNESP Dept. of Applied Geology and Basin Studies Laboratory (LEBAC)
dc.description.affiliationUnespSão Paulo State University UNESP Environmental Studies Center (CEA) and Basin Studies Laboratory (LEBAC)
dc.description.affiliationUnespSão Paulo State University UNESP Dept. of Applied Geology and Basin Studies Laboratory (LEBAC)
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)
dc.description.sponsorshipNational Aeronautics and Space Administration
dc.description.sponsorshipHelmholtz-Zentrum für Umweltforschung
dc.description.sponsorshipUniversidade Estadual Paulista
dc.identifierhttp://dx.doi.org/10.1016/j.scitotenv.2019.135845
dc.identifier.citationScience of the Total Environment, v. 705.
dc.identifier.doi10.1016/j.scitotenv.2019.135845
dc.identifier.issn1879-1026
dc.identifier.issn0048-9697
dc.identifier.lattes1989662459244838
dc.identifier.scopus2-s2.0-85076598788
dc.identifier.urihttp://hdl.handle.net/11449/198290
dc.language.isoeng
dc.relation.ispartofScience of the Total Environment
dc.sourceScopus
dc.subjectBrazilian Cerrado
dc.subjectDrought
dc.subjectGRACE
dc.subjectSubregional scale
dc.subjectSão Francisco river
dc.subjectWater storage
dc.titleUsing GRACE to quantify the depletion of terrestrial water storage in Northeastern Brazil: The Urucuia Aquifer Systemen
dc.typeArtigopt
dspace.entity.typePublication
unesp.author.lattes1989662459244838[4]
unesp.author.orcid0000-0002-6274-4510[4]
unesp.campusUniversidade Estadual Paulista (UNESP), Centro de Estudos Ambientais, Rio Claropt

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Rio Claro - CEA - Centro de Estudos Ambientais