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Centre d'études spatiales de la biosphère |  |
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Centre d'études spatiales de la biosphère | |
| HAL : hal-00398202, version 1 |
| DOI : 10.3390/s8053460 |
| Fiche détaillée |  Récupérer au format |
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| Sensors 8, 5 (2008) 3460-3481 |
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| Assessing the potentialities of FORMOSAT-2 data for water and crop monitoring at small regional scale in South-Eastern France |
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| Dominique CouraultA. Bsaibes 1 |
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| (2008) |
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| Water monitoring at the scale of a small agricultural region is a key point to insure a good crop development particularly in South-Eastern France, where extreme climatic conditions result in long dry periods in spring and summer with very sparse precipitation events, corresponding to a crucial period of crop development. Remote sensing with the increasing imagery resolution is a useful tool to provide information on plant water status over various temporal and spatial scales. The current study focussed on assessing the potentialities of FORMOSAT-2 data, characterized by high spatial (8m pixel) and temporal resolutions (1-3 day/time revisit), to improve crop modeling and spatial estimation of the main land properties. Thirty cloud free images were acquired from March to October 2006 over a small region called Crau-Camargue in SE France, while numerous ground measurements were performed simultaneously over various crop types. We have compared two models simulating energy transfers between soil, vegetation and atmosphere: SEBAL and PBLs. Maps of evapotranspiration were analyzed according to the agricultural practices at field scale. These practices were well identified from FORMOSAT-2 images, which provided accurate input surface parameters to the SVAT models. |
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| 1 : | UMR 1114 INRA-UAPV EMMAH |
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Institut national de la recherche agronomique (INRA) : UMR1114 |
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| 2 : | Equipe Ecologie Végétale, Sol et Environnement |
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Faculté des Sciences Semlalia Marrakech |
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| 3 : | Centre d'études spatiales de la biosphère (CESBIO) |
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CNRS : UMR5126 – Institut de recherche pour le développement [IRD] – CNES – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III |
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| 4 : | Antenne de la Direction Scientifique Environnement - Ecosystèmes Cultivés et Naturels (AVIGNON DS ECONAT) |
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Institut national de la recherche agronomique (INRA) : UA1051 |
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| Domaine | : | Planète et Univers/Interfaces continentales, environnement |
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| FORMOSAT-2 – crop monitoring – evapotranspiration – LAI – albedo – surface temperature |
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| hal-00398202, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00398202 | |
| oai:hal.archives-ouvertes.fr:hal-00398202 | |
| Contributeur : Catherine Molacek | |
| Soumis le : Mercredi 24 Juin 2009, 12:22:10 | |
| Dernière modification le : Mercredi 24 Juin 2009, 12:22:10 | |
