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SMOSHiLat - Microwave L-band emission from organic-rich soils in the northern cold climate zone in the framework of the SMOS mission

hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorBIRCHER, Simone
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorWIGNERON, Jean-Pierre
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
dc.contributor.authorDEMONTOUX, François
hal.structure.identifierGamma Remote Sensing
dc.contributor.authorSCWHANK, Mike
hal.structure.identifierForschungszentrum Jülich GmbH | Centre de recherche de Jülich | Jülich Research Centre [FZJ]
dc.contributor.authorJONARD, François
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
dc.contributor.authorRAZAFINDRATSIMA, Stephen
hal.structure.identifierLaboratory of Radiophysics of the Earth Remote Sensing
dc.contributor.authorMIRONOV, Valery
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorRICHAUME, Philippe
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorMIALON, Arnaud
hal.structure.identifierForschungszentrum Jülich GmbH | Centre de recherche de Jülich | Jülich Research Centre [FZJ]
dc.contributor.authorWEIHERMÜLLER, Lutz
hal.structure.identifierFinnish Meteorological Institute [FMI]
dc.contributor.authorRAUTIAINEN, Kimmo
hal.structure.identifierFinnish Meteorological Institute [FMI]
dc.contributor.authorPULLIAINEN, Jouni
hal.structure.identifierUniversity of Copenhagen = Københavns Universitet [UCPH]
dc.contributor.authorJENSEN, Karsten Høgh
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorKERR, Yann H.
dc.date.accessioned2024-04-08T11:55:03Z
dc.date.available2024-04-08T11:55:03Z
dc.date.issued2014
dc.date.conference2014-07-13
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195642
dc.description.abstractEnThe circumpolar northern colder climate zone (boreal zone/tundra) is covered by pronounced organic soils. Due to above-average rising temperatures in the higher northern latitudes, a large amount of these important carbon sinks might be released, possibly causing a significant positive feedback on global warming. Thus, there is a strong need to monitor hydrologic processes in these regions. The ESA's Soil Moisture and Ocean Salinity (SMOS) mission carries the first space-borne passive L-band microwave (1.4 GHz) radiometer on board. It acquires global brightness temperatures (TB) from which surface soil moisture is retrieved, taking advantage of the very large difference between the dielectric constant of dry soil and water at this frequency. The retrieval algorithm is based on the L-band Microwave Emission of the Biosphere (L-MEB) model which uses tuning parameters derived from study sites in dry and warm temperate climate zones. In order to improve our understanding of L-band emissions of organic soil surface layers and thus, supporting the quality of SMOS data in the northern colder climate zone the SMOSHiLat project has been evoked in the framework of ESA's Changing Earth Science Network. It aims at creating a database including L-band TBs and dielectric constant values of soils, mainly from two northern study sites in Sodankylä, Finland (Finnish Meteorological Institue, FMI), and Gludsted, Denmark (Hydrologic OBsErvatory, HOBE). Based on this database the L-MEB model is adapted for organic soils encountered in Northern regions and tested in the SMOS soil moisture prototype retrieval algorithm in view of its implementation in the operational one.
dc.language.isoen
dc.source.titledans actes International Geoscience and Remote Sensing Symposium (IGARSS 2014)
dc.subjectorganic soil
dc.subjectmoisture
dc.subjectdielectric constants
dc.subject.enSMOSHiLat
dc.subject.enradiometer
dc.subject.enL Band
dc.title.enSMOSHiLat - Microwave L-band emission from organic-rich soils in the northern cold climate zone in the framework of the SMOS mission
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre
dc.subject.halSciences de l'ingénieur [physics]/Traitement du signal et de l'image
dc.subject.halSciences de l'environnement/Milieux et Changements globaux
dc.subject.halSciences de l'ingénieur [physics]/Electromagnétisme
dc.subject.halPlanète et Univers [physics]/Interfaces continentales, environnement
bordeaux.page1
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.proceedingdans actes International Geoscience and Remote Sensing Symposium (IGARSS 2014)
bordeaux.conference.cityQuébec
bordeaux.peerReviewedoui
hal.identifierhal-02799025
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.organizerInstitute of Electrical and Electronics Engineers (IEEE). USA.
hal.conference.end2014-07-18
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02799025v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=dans%20actes%20International%20Geoscience%20and%20Remote%20Sensing%20Symposium%20(IGARSS%202014)&rft.date=2014&rft.spage=1&rft.epage=1&rft.au=BIRCHER,%20Simone&WIGNERON,%20Jean-Pierre&DEMONTOUX,%20Fran%C3%A7ois&SCWHANK,%20Mike&JONARD,%20Fran%C3%A7ois&rft.genre=unknown


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