SMOS mains results over land after 4 years in orbit
International audience The SMOS mission was launched in November 2009 and allows measuring the surface soil moisture over continental land, covering the entire surface in 3 days. The multi-angular algorithm also enables to estimate the vegetation opacity which is directly related to the water conten...
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Language: | English |
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HAL CCSD
2014
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Online Access: | https://hal.inrae.fr/hal-02744022 |
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ftunivnantes:oai:HAL:hal-02744022v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
mission SMOS analyse de données [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing |
spellingShingle |
mission SMOS analyse de données [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing Kerr, Yann H. Wigneron, Jean-Pierre Ferrazzoli, P. Richaume, Philippe Waldteufel, P. Mialon, Arnaud Ahmad, Al Bitar Bircher, Simone Cabot, François Choné, Audrey Leroux, Delphine Molero, Beatriz Parrens, Marie Rodriguez‐fernandez, Nemesio Al Yaari, Amen Grant, Jennifer Delwart, Steven Drusch, Matthias Mecklenburg, Susanne SMOS mains results over land after 4 years in orbit |
topic_facet |
mission SMOS analyse de données [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing |
description |
International audience The SMOS mission was launched in November 2009 and allows measuring the surface soil moisture over continental land, covering the entire surface in 3 days. The multi-angular algorithm also enables to estimate the vegetation opacity which is directly related to the water content of the canopy. The algorithm also distinguishes between low vegetation where most of the signal emanates from the leaf and stems of the vegetation and the forests where the signal is mainly linked to the branch biomass at L band. ESA’s DPGS (European Space Agency’s Data Processing Ground Segment) has been delivering the so called Level 2 products, consisting in ½ orbits data for both products since launch. The CNES (Centre National d'Etudes Spatiales) has developed the CATDS (Centre Aval de Traitement des Données SMOS) ground segment that now provides spatial and temporal synthesis products (referred to as Level 3 products) enabling to better estimate the vegetation opacity ( as well as soil moisture and brightness temperature over land). After now several years of availability, the soil moisture product is rather robust but the vegetation opacity, either obtained at level 2 or 3 still suffers from several flaws, even if it looks promising. Work was also performed on the improvement of dielectric constant modelling either on modelling site or ground measurements. A particular emphasis was done or organic rich soils. A number of higher level products have been developed and tested, ranging from sea ice thickness to drought indices root zone soil moisture and freeze indices. In this presentation we will look at the products and how they are obtained and validated as well as the main results obtained over both low vegetation and forested areas. |
author2 |
Centre d'études spatiales de la biosphère (CESBIO) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Interactions Sol Plante Atmosphère (UMR ISPA) Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro) Lund University Lund Swiss Federal Institute for Forest, Snow and Landscape Research WSL Agence Spatiale Européenne = European Space Agency (ESA) |
format |
Conference Object |
author |
Kerr, Yann H. Wigneron, Jean-Pierre Ferrazzoli, P. Richaume, Philippe Waldteufel, P. Mialon, Arnaud Ahmad, Al Bitar Bircher, Simone Cabot, François Choné, Audrey Leroux, Delphine Molero, Beatriz Parrens, Marie Rodriguez‐fernandez, Nemesio Al Yaari, Amen Grant, Jennifer Delwart, Steven Drusch, Matthias Mecklenburg, Susanne |
author_facet |
Kerr, Yann H. Wigneron, Jean-Pierre Ferrazzoli, P. Richaume, Philippe Waldteufel, P. Mialon, Arnaud Ahmad, Al Bitar Bircher, Simone Cabot, François Choné, Audrey Leroux, Delphine Molero, Beatriz Parrens, Marie Rodriguez‐fernandez, Nemesio Al Yaari, Amen Grant, Jennifer Delwart, Steven Drusch, Matthias Mecklenburg, Susanne |
author_sort |
Kerr, Yann H. |
title |
SMOS mains results over land after 4 years in orbit |
title_short |
SMOS mains results over land after 4 years in orbit |
title_full |
SMOS mains results over land after 4 years in orbit |
title_fullStr |
SMOS mains results over land after 4 years in orbit |
title_full_unstemmed |
SMOS mains results over land after 4 years in orbit |
title_sort |
smos mains results over land after 4 years in orbit |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.inrae.fr/hal-02744022 |
op_coverage |
Torrent (Valencia), Spain |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
RAQRS'IV, 4th International Symposium on Recent Advances in Quantitative Remote Sensing https://hal.inrae.fr/hal-02744022 RAQRS'IV, 4th International Symposium on Recent Advances in Quantitative Remote Sensing, Sep 2014, Torrent (Valencia), Spain |
op_relation |
hal-02744022 https://hal.inrae.fr/hal-02744022 PRODINRA: 272054 |
_version_ |
1766195538203508736 |
spelling |
ftunivnantes:oai:HAL:hal-02744022v1 2023-05-15T18:18:49+02:00 SMOS mains results over land after 4 years in orbit Kerr, Yann H. Wigneron, Jean-Pierre Ferrazzoli, P. Richaume, Philippe Waldteufel, P. Mialon, Arnaud Ahmad, Al Bitar Bircher, Simone Cabot, François Choné, Audrey Leroux, Delphine Molero, Beatriz Parrens, Marie Rodriguez‐fernandez, Nemesio Al Yaari, Amen Grant, Jennifer Delwart, Steven Drusch, Matthias Mecklenburg, Susanne Centre d'études spatiales de la biosphère (CESBIO) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Interactions Sol Plante Atmosphère (UMR ISPA) Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro) Lund University Lund Swiss Federal Institute for Forest, Snow and Landscape Research WSL Agence Spatiale Européenne = European Space Agency (ESA) Torrent (Valencia), Spain 2014-09-22 https://hal.inrae.fr/hal-02744022 en eng HAL CCSD hal-02744022 https://hal.inrae.fr/hal-02744022 PRODINRA: 272054 RAQRS'IV, 4th International Symposium on Recent Advances in Quantitative Remote Sensing https://hal.inrae.fr/hal-02744022 RAQRS'IV, 4th International Symposium on Recent Advances in Quantitative Remote Sensing, Sep 2014, Torrent (Valencia), Spain mission SMOS analyse de données [SDE.MCG]Environmental Sciences/Global Changes [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing info:eu-repo/semantics/conferenceObject Conference papers 2014 ftunivnantes 2023-02-22T05:49:33Z International audience The SMOS mission was launched in November 2009 and allows measuring the surface soil moisture over continental land, covering the entire surface in 3 days. The multi-angular algorithm also enables to estimate the vegetation opacity which is directly related to the water content of the canopy. The algorithm also distinguishes between low vegetation where most of the signal emanates from the leaf and stems of the vegetation and the forests where the signal is mainly linked to the branch biomass at L band. ESA’s DPGS (European Space Agency’s Data Processing Ground Segment) has been delivering the so called Level 2 products, consisting in ½ orbits data for both products since launch. The CNES (Centre National d'Etudes Spatiales) has developed the CATDS (Centre Aval de Traitement des Données SMOS) ground segment that now provides spatial and temporal synthesis products (referred to as Level 3 products) enabling to better estimate the vegetation opacity ( as well as soil moisture and brightness temperature over land). After now several years of availability, the soil moisture product is rather robust but the vegetation opacity, either obtained at level 2 or 3 still suffers from several flaws, even if it looks promising. Work was also performed on the improvement of dielectric constant modelling either on modelling site or ground measurements. A particular emphasis was done or organic rich soils. A number of higher level products have been developed and tested, ranging from sea ice thickness to drought indices root zone soil moisture and freeze indices. In this presentation we will look at the products and how they are obtained and validated as well as the main results obtained over both low vegetation and forested areas. Conference Object Sea ice Université de Nantes: HAL-UNIV-NANTES |