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Smos L-Band vegetation optical depth is highly sensitive to aboveground biomass

hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorRODRIGUEZ‐FERNANDEZ, Nemesio
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorMIALON, Arnaud
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorMERMOZ, Stéphane
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.authorAHMAD, Al Bitar
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorAL-YAARI, Amen
hal.structure.identifierUniversity of Copenhagen = Københavns Universitet [UCPH]
dc.contributor.authorBRANDT, M.
hal.structure.identifierThe Inversion Lab
dc.contributor.authorKAMINSKI, T.
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorLE TOAN, Thuy
hal.structure.identifierCentre d'études spatiales de la biosphère [CESBIO]
dc.contributor.authorKERR, Yann H.
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorWIGNERON, Jean-Pierre
dc.date.accessioned2024-04-08T12:00:32Z
dc.date.available2024-04-08T12:00:32Z
dc.date.issued2018
dc.date.conference2018-07-22
dc.identifier.isbn978-1-5386-7150-4
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196081
dc.description.abstractEnThe vegetation optical depth (VOD) measured at microwave frequencies is related to the vegetation water content and provides information complementary to visible/infra-red vegetation indices. This study is devoted to the characterisation of a new L-Band (1.4 GHz) VOD dataset (SMOS-IC L-VOD) obtained from the SMOS (Soil Moisture and Ocean Salinity) satellite. SMOS IC L-VOD is evaluated through a comparison with several vegetation-related quantities such as tree height and above ground biomass (AGB) for different land cover types. SMOS L-VOD shows monotonic relationships with respect to the variables extracted from these different datasets without signs of saturation at high values. The relationships between L-VOD and AGB were also compared to those obtained using the Normalized Difference Vegetation Index (NDVI) and K/X/C-VOD (VOD measured at 19, 10.7, and 6.9 GHz). In contrast to NDVI and K/X/C-VOD, L-VOD shows a relationship to AGB that is closer to a linear one without significant signs of saturation. SMOS L-VOD is a very promising dataset for large scale monitoring of biomass, at coarse scale spatial resolution (similar to 40 km), but with high temporal resolution and with an improved sensitivity with respect to higher-frequency VOD data.
dc.language.isoen
dc.publisherIEEE
dc.publisher.locationHamburg (germany)
dc.source.titleIEEE International Geoscience and Remote Sensing Symposium Proceedings
dc.title.enSmos L-Band vegetation optical depth is highly sensitive to aboveground biomass
dc.typeCommunication dans un congrès
dc.identifier.doi10.1109/IGARSS.2018.8517558
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.titleIEE International Geoscience and Remote Sensing Symposium (IGARSS)
bordeaux.countryES
bordeaux.title.proceedingIEEE International Geoscience and Remote Sensing Symposium Proceedings
bordeaux.conference.cityValencia
bordeaux.peerReviewedoui
hal.identifierhal-02736918
hal.version1
hal.invitednon
hal.conference.end2018-07-27
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02736918v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=IEEE%20International%20Geoscience%20and%20Remote%20Sensing%20Symposium%20Proceedings&rft.date=2018&rft.au=RODRIGUEZ%E2%80%90FERNANDEZ,%20Nemesio&MIALON,%20Arnaud&MERMOZ,%20St%C3%A9phane&RICHAUME,%20Philippe&AHMAD,%20Al%20Bitar&rft.isbn=978-1-5386-7150-4&rft.genre=unknown


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