First Retrievals of ASCAT IB VOD (Vegetation Optical Depth) at Global Scale
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | LIU, Xiangzhuo | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | WIGNERON, J.-P. | |
| hal.structure.identifier | Laboratoire d'études en Géophysique et océanographie spatiales [LEGOS] | |
| dc.contributor.author | FRAPPART, Frederic | |
| hal.structure.identifier | Territoires, Environnement, Télédétection et Information Spatiale [UMR TETIS] | |
| dc.contributor.author | BAGHDADI, Nicolas | |
| hal.structure.identifier | Centre d'études spatiales de la biosphère [CESBIO] | |
| dc.contributor.author | ZRIBI, Mehrez | |
| dc.contributor.author | JAGDHUBER, Thomas | |
| hal.structure.identifier | Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE] | |
| dc.contributor.author | CIAIS, Philippe | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | LI, Xiaojun | |
| dc.contributor.author | WANG, Mengjia | |
| dc.contributor.author | FAN, Lei | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | YGORRA, Bertrand | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | MA, Hongliang | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | XING, Zanpin | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | AL-YAARI, A. | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | FERNANDEZ-MORAN, Roberto | |
| hal.structure.identifier | Interactions Sol Plante Atmosphère [UMR ISPA] | |
| dc.contributor.author | MOISY, Christophe | |
| dc.date.accessioned | 2024-04-08T11:49:56Z | |
| dc.date.available | 2024-04-08T11:49:56Z | |
| dc.date.conference | 2021-07-11 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/195362 | |
| dc.description.abstractEn | Global and long-term vegetation optical depth (VOD) dataset are very useful to monitor the dynamics of the vegetation features, climate and environmental changes. In this study, the radar-based global ASCAT (Advanced SCATterometer) IB (INRAE-BORDEAUX) VOD was retrieved using a model which was recently calibrated over Africa. In order to assess the performance of IB VOD, the Saatchi biomass and three other VOD datasets (ASCAT V16, AMSR2 LPRM V5 and VODCA LPRM V6) derived from C-band observations were used in the comparison. The preliminary results show that IB VOD has a promising ability to predict biomass (R=0.74, RMSE=44.82 Mg ha−1) , which is better than V16 VOD (R=0.64, RMSE=51.27 Mgha−1) and VODCA VOD (R=0.72, RMSE=47.14 Mg ha−1) . Some retrieval issues for IB VOD were found in boreal regions (e.g., Eastern America, Russia). In the future, we will focus on improving our algorithm in those regions, and produce a global and long-term dataset. | |
| dc.language.iso | en | |
| dc.publisher | IEEE | |
| dc.subject.en | Biomedical optical imaging | |
| dc.subject.en | Radar Measurement | |
| dc.subject.en | vegetation mapping | |
| dc.subject.en | C-band | |
| dc.subject.en | prediction algorithm | |
| dc.subject.en | biomass | |
| dc.subject.en | optical sensor | |
| dc.subject.en | remote sensing | |
| dc.title.en | First Retrievals of ASCAT IB VOD (Vegetation Optical Depth) at Global Scale | |
| dc.type | Communication dans un congrès | |
| dc.identifier.doi | 10.1109/IGARSS47720.2021.9553244 | |
| dc.subject.hal | Sciences de l'environnement | |
| bordeaux.page | 6403-6406 | |
| bordeaux.hal.laboratories | Interactions Soil Plant Atmosphere (ISPA) - UMR 1391 | * |
| bordeaux.institution | Bordeaux Sciences Agro | |
| bordeaux.institution | INRAE | |
| bordeaux.conference.title | IGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium | |
| bordeaux.country | FR | |
| bordeaux.conference.city | Brussels | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-03410563 | |
| hal.version | 1 | |
| hal.invited | non | |
| hal.proceedings | non | |
| hal.conference.end | 2021-07-16 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-03410563v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.spage=6403-6406&rft.epage=6403-6406&rft.au=LIU,%20Xiangzhuo&WIGNERON,%20J.-P.&FRAPPART,%20Frederic&BAGHDADI,%20Nicolas&ZRIBI,%20Mehrez&rft.genre=unknown |
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