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Retrieving global surface soil moisture from GRACE satellite gravity data

hal.structure.identifierDepartment of Civil, Environmental and Geo-Engineering [Minneapolis]
dc.contributor.authorSADEGHI, Morteza
hal.structure.identifierDepartment of Civil, Environmental and Geo-Engineering [Minneapolis]
dc.contributor.authorGAO, Lun
hal.structure.identifierDepartment of Civil, Environmental and Geo-Engineering [Minneapolis]
dc.contributor.authorEBTEHAJ, Ardeshir
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorWIGNERON, Jean-Pierre
hal.structure.identifierUSDA-ARS : Agricultural Research Service
dc.contributor.authorCROW, Wade
hal.structure.identifierJet Propulsion Laboratory [JPL]
dc.contributor.authorREAGER, John
hal.structure.identifierUniversity of Arizona
dc.contributor.authorWARRICK, Arthur
dc.date.accessioned2024-04-08T12:07:11Z
dc.date.available2024-04-08T12:07:11Z
dc.date.issued2020-05
dc.identifier.issn0022-1694
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196449
dc.description.abstractEnPassive microwave radiometry from space through missions such as the Soil Moisture and Ocean Salinity (SMOS) and Soil Moisture Active Passive (SMAP) satellites is the most reliable means for mapping global surface soil moisture (SSM). Nonetheless, microwave SSM retrievals are uncertain over densely vegetated surfaces or areas with high radio frequency interference. This paper presents a new observationally driven approach to remote sensing of global SSM based on the terrestrial water storage anomaly (TWSA) data acquired from the Gravity Recovery and Climate Experiment (GRACE) satellite. This approach rests on a physically based, yet parsimonious, model based on the Richards' equation and the assumption that the TWSA temporal rate of change (dS/dt) approximates the land surface net water flux (NWF) as the surface boundary condition. The GRACE-based SSM is found to be in a reasonable agreement with in-situ data and highly correlated with the SMAP and SMOS retrievals, especially over wet regions where the assumption of NWF approximate to dS/dt holds valid. The GRACE retrievals contain new SSM information relative to the microwave satellite data and provide a potential solution to improve the microwave data over densely vegetated surfaces or areas with high radio frequency interference.
dc.language.isoen
dc.publisherElsevier
dc.subject.enGRACE
dc.subject.enSMAP
dc.subject.enSMOS
dc.subject.enTerrestrial water storage
dc.subject.enSoil moisture
dc.subject.enRichards' equation
dc.title.enRetrieving global surface soil moisture from GRACE satellite gravity data
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jhydrol.2020.124717
dc.subject.halSciences de l'environnement/Environnement et Société
dc.subject.halSciences de l'environnement/Milieux et Changements globaux
bordeaux.journalJournal of Hydrology
bordeaux.page1-12
bordeaux.volume584
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02563113
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02563113v1
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