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The global SMOS Level 3 daily soil moisture and brightness temperature maps

hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
hal.structure.identifierUniversité de Toulouse [UT]
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
dc.contributor.authorAHMAD, Al Bitar
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
hal.structure.identifierUniversité de Toulouse [UT]
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
dc.contributor.authorMIALON, Arnaud
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
hal.structure.identifierUniversité de Toulouse [UT]
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorKERR, Yann H.
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
hal.structure.identifierUniversité de Toulouse [UT]
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorCABOT, François
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
hal.structure.identifierUniversité de Toulouse [UT]
dc.contributor.authorRICHAUME, Philippe
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorJACQUETTE, Elsa
hal.structure.identifierCapGemini Sud
dc.contributor.authorQUESNEY, Arnaud
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
hal.structure.identifierUniversité de Toulouse [UT]
dc.contributor.authorMAHMOODI, Ali
hal.structure.identifierInstitut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
dc.contributor.authorTAROT, Stéphane
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
hal.structure.identifierUniversité de Toulouse [UT]
dc.contributor.authorPARRENS, Marie
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorAL YAARI, Amen
hal.structure.identifierUniversité de Grenoble
hal.structure.identifierCentre National de la Recherche Scientifique [CNRS]
dc.contributor.authorPELLARIN, Thierry
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
hal.structure.identifierUniversité de Toulouse [UT]
dc.contributor.authorRODRIGUEZ‐FERNANDEZ, Nemesio
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorWIGNERON, Jean-Pierre
dc.date.accessioned2024-04-08T12:04:15Z
dc.date.available2024-04-08T12:04:15Z
dc.date.issued2017
dc.identifier.issn1866-3508
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196301
dc.description.abstractEnThe objective of this paper is to present the multi-orbit (MO) surface soil moisture (SM) and angle-binned brightness temperature (TB) products for the SMOS (Soil Moisture and Ocean Salinity) mission based on a new multi-orbit algorithm. The Level 3 algorithm at CATDS (Centre Aval de Traitement des Donnees SMOS) makes use of MO retrieval to enhance the robustness and quality of SM retrievals. The motivation of the approach is to make use of the longer temporal autocorrelation length of the vegetation optical depth (VOD) compared to the corresponding SM autocorrelation in order to enhance the retrievals when an acquisition occurs at the border of the swath. The retrieval algorithm is implemented in a unique operational processor delivering multiple parameters (e.g. SM and VOD) using multi-angular dual-polarisation TB from MO. A subsidiary angle-binned TB product is provided. In this study the Level 3 TB V310 product is showcased and compared to SMAP (Soil Moisture Active Passive) TB. The Level 3 SM V300 product is compared to the single-orbit (SO) retrievals from the Level 2 SM processor from ESA with aligned configuration. The advantages and drawbacks of the Level 3 SM product (L3SM) are discussed. The comparison is done on a global scale between the two datasets and on the local scale with respect to in situ data from AMMA-CATCH and USDA ARS Watershed networks. The results obtained from the global analysis show that the MO implementation enhances the number of retrievals: up to 9% over certain areas. The comparison with the in situ data shows that the increase in the number of retrievals does not come with a decrease in quality, but rather at the expense of an increased time lag in product availability from 6 h to 3.5 days, which can be a limiting factor for applications like flood forecast but reasonable for drought monitoring and climate change studies. The SMOS L3 soil moisture and L3 brightness temperature products are delivered using an open licence and free of charge using a web application(https://www.catds.fr/sipad/).TheRE04 products, versions 300 and 310, used in this paper are also available at ftp://ext-catds-cpdc:catds2010@ftp.ifremer.fr/Land_products/GRIDDED/L3SM/RE04/.
dc.language.isoen
dc.publisherCopernicus Publications
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjectalgorithme
dc.subjecthumidité du sol
dc.subjectchangement climatique
dc.subject.enmulti-objective particle swarm optimization (mopso)
dc.subject.englobal change
dc.title.enThe global SMOS Level 3 daily soil moisture and brightness temperature maps
dc.typeArticle de revue
dc.typeData paper
dc.identifier.doi10.5194/essd-9-293-2017
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalEarth System Science Data
bordeaux.page293-315
bordeaux.volume9
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue1
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-01602625
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01602625v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Earth%20System%20Science%20Data&rft.date=2017&rft.volume=9&rft.issue=1&rft.spage=293-315&rft.epage=293-315&rft.eissn=1866-3508&rft.issn=1866-3508&rft.au=AHMAD,%20Al%20Bitar&MIALON,%20Arnaud&KERR,%20Yann%20H.&CABOT,%20Fran%C3%A7ois&RICHAUME,%20Philippe&rft.genre=article&unknown


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