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Centre d'études spatiales de la biosphère |  |
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Centre d'études spatiales de la biosphère | |
| HAL : ird-00406789, version 1 |
| DOI : 10.1029 |
| Fiche détaillée |  Récupérer au format |
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| Geophysical Research Letters (2009) 1-17 |
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| Bridging the gap between atmospheric concentrations and local ecosystem measurements |
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T. Lauvaux 1B. Gioli 2 |
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| (2009) |
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| This paper presents the first direct comparison of regional CO2 fluxes estimated by inversion of atmospheric concentration data with fluxes measured by towers and aircraft. All measurements were made in a 300x300km domain in southwest France in 2005. Concentrations were measured on two short towers while fluxes were measured on 5 towers and 27 aircraft transects. The inversion produces a better fit than the prior estimate to the measured fluxes, capturing both the temporal evolution and behaviour of different ecosystems. Additionally, the final estimate is most improved where the theoretical error reduction is highest. Results suggest that atmospheric inversion is a reliable tool for estimating regional CO2 fluxes provided the components are verified. |
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| 1 : | Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE) |
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CNRS : UMR8212 – CEA : DSM/LSCE – Université de Versailles Saint-Quentin-en-Yvelines |
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| 2 : | IBIMET-CNR |
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Instituto di Biometeorologia |
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| 3 : | Groupe d'étude de l'atmosphère météorologique (CNRM-GAME) |
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CNRS : URA1357 – INSU – Météo France |
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| 4 : | Écologie fonctionnelle et physique de l'environnement (EPHYSE - UR1263) |
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Institut national de la recherche agronomique (INRA) : UR1263 |
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| 5 : | 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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| 6 : | Vrije Universiteit |
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Vrije Universiteit |
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| 7 : | Alterra [Wageningen] (ESS-CC) |
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Centre for Water and Climate |
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| 8 : | Max Planck institute for Biogeochemistry |
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Max Planck Institute for Biogeochemistry |
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| 9 : | Department of Atmospheric Sciences |
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Colorado State University |
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| domaine | : | Sciences du Vivant/Ecologie, Environnement/Ecosystèmes |
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| Liste des fichiers attachés à ce document : | |||||
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| ird-00406789, version 1 | |
| http://hal.ird.fr/ird-00406789 | |
| oai:hal.ird.fr:ird-00406789 | |
| Contributeur : Dominique Bruel | |
| Soumis le : Jeudi 23 Juillet 2009, 16:40:28 | |
| Dernière modification le : Jeudi 23 Juillet 2009, 17:08:11 | |
