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Merging two passive microwave remote sensing (SMOS and AMSR_E) datasets to produce a long term record of soil moisture

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorAL YAARI, Amen
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorWIGNERON, Jean-Pierre
hal.structure.identifierMilieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols [METIS]
dc.contributor.authorDUCHARNE, Agnès
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorKERR, Yann H.
hal.structure.identifierEuropean Centre for Medium-Range Weather Forecasts [ECMWF]
dc.contributor.authorDE ROSNAY, Patricia
hal.structure.identifierVrije Universiteit Amsterdam [Amsterdam] [VU]
dc.contributor.authorDE JEU, Richard
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorGOVIND, Ajit
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorAHMAD, Al Bitar
hal.structure.identifierEuropean Centre for Medium-Range Weather Forecasts [ECMWF]
dc.contributor.authorALBERGEL, Clément
hal.structure.identifierEuropean Centre for Medium-Range Weather Forecasts [ECMWF]
dc.contributor.authorMUNOZ, Joachim
hal.structure.identifierInstitut national des sciences de l'Univers [INSU - CNRS]
dc.contributor.authorRICHAUME, Philippe
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorMIALON, Arnaud
dc.date.accessioned2024-04-08T11:59:16Z
dc.date.available2024-04-08T11:59:16Z
dc.date.issued2014
dc.date.conference2014-07-13
dc.identifier.isbn978-1-4799-5775-0
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195985
dc.description.abstractEnThis study investigated the use of physically based statistical regressions to retrieve a global and long term (e.g. 2003–2014) surface soil moisture (SSM) record based on a combination of passive microwave remote sensing observations from the Advanced Microwave Scanning Radiometer (AMSR-E; 2003-Sept. 2011) and the Soil Moisture and Ocean Salinity (SMOS; 2010–2014) sensors. Statistical regression methods based on bi-polarization (horizontal and vertical) brightness temperatures (Tb) observations obtained from AMSR-E. The coefficients of these regression equations were calibrated using SMOS level 3 SSM maps (SMOSL3) as a reference. This calibration process was carried out over the June 2010-Sept. 2011 period, over which both SMOS and AMSR-E observations coincide. Based on these calibrated coefficients global SSM maps could be computed from the AMSR-E Tb observations over the whole 2003–2011 period. In this study, the SSM maps were successfully evaluated against the SMOSL3 SSM products over the period of calibration (Jun. 2010-Sept. 2011). Correlations (R) and Root Mean Square Error (RMSE) were computed between the AMSR-E retrievals and the reference (SMOSL3) SSM products. The R (mostly > 0.75) and RMSE (mostly < 0.04 m3/m3) maps showed a good agreement between the retrieved and SMOSL3 SSM products particularly over Australia, central USA, central Asia, and the Sahel. In conclusion, the statistical regression method is capable of retrieving a coherent "SMOS-AMSR-E" SSM time series for the period 2003–2014.
dc.language.isoen
dc.publisherIEEE
dc.publisher.location(united states)
dc.source.titleIEEE International Geoscience and Remote Sensing Symposium Proceedings
dc.subjectSMOS
dc.subjectsoil moisture
dc.subject.enregression analyses
dc.subject.enAMSR-E
dc.subject.en1.4 GHZ
dc.title.enMerging two passive microwave remote sensing (SMOS and AMSR_E) datasets to produce a long term record of soil moisture
dc.typeCommunication dans un congrès
dc.identifier.doi10.1109/IGARSS.2014.6946922
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.conference.titleIGARSS 2014, International Geoscience and Remote Sensing Symposium
bordeaux.countryCA
bordeaux.title.proceedingIEEE International Geoscience and Remote Sensing Symposium Proceedings
bordeaux.conference.cityQuébec
bordeaux.peerReviewedoui
hal.identifierhal-02740682
hal.version1
hal.invitednon
hal.conference.organizerIEEE Geoscience and Remote Sensing Society (GRSS). USA.
hal.conference.end2014-07-18
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02740682v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.btitle=IEEE%20International%20Geoscience%20and%20Remote%20Sensing%20Symposium%20Proceedings&amp;rft.date=2014&amp;rft.au=AL%20YAARI,%20Amen&amp;WIGNERON,%20Jean-Pierre&amp;DUCHARNE,%20Agn%C3%A8s&amp;KERR,%20Yann%20H.&amp;DE%20ROSNAY,%20Patricia&amp;rft.isbn=978-1-4799-5775-0&amp;rft.genre=unknown


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