HR: 1400h
AN: A43B-02    [Abstracts]
TI: Land Surface Albedo Derived in Near Real Time from Meteosat Second Generation Observations
AU: * Carrer, D
EM: dominique.carrer@meteo.fr
AF: Meteo-France, CNRM/GAME, 42 avenue Gaspard Coriolis, Toulouse Cedex, 31057, France
AU: Geiger, B
EM: Bernhard.Geiger@free.fr
AF: Meteo-France, CNRM/GAME, 42 avenue Gaspard Coriolis, Toulouse Cedex, 31057, France
AU: Geiger, B
EM: Bernhard.Geiger@free.fr
AF: Instituto de Ciência Aplicada e Tecnologia, Campo Grande, Lisboa, 1749-016, Portugal
AU: Roujean, J
EM: jean-louis.roujean@meteo.fr
AF: Meteo-France, CNRM/GAME, 42 avenue Gaspard Coriolis, Toulouse Cedex, 31057, France
AU: Franchistéguy, L
EM: laurent.franchisteguy@meteo.fr
AF: Meteo-France, CNRM/GAME, 42 avenue Gaspard Coriolis, Toulouse Cedex, 31057, France
AU: Meurey, C
EM: catherine.meurey@meteo.fr
AF: Meteo-France, CNRM/GAME, 42 avenue Gaspard Coriolis, Toulouse Cedex, 31057, France
AB: The European Meteorological Satellite Organization (EUMETSAT) maintains a number of decentralized processing centers dedicated to different scientific themes. The Satellite Application Facility on Land Surface Analysis (Land-SAF) is hosted by the Portuguese Meteorological Institute. Its objective is to provide value added products for the meteorological and environmental science communities with main applications in the fields of climate modeling, natural hazards management, and climate change detection. Since 2005 data from Meteosat Second Generation satellite are routinely processed in near real time by the Land-SAF operational system. Presently, the delivered operational products comprise land surface albedo and temperature, short-wave and long-wave downwelling radiation fluxes, and snow cover. Within the project consortium Meteo-France is responsible for the development of several products, of which one is the daily surface albedo product. After about seven years of research, development, and progressive operational activities, a summary of the albedo product characteristics and performances is presented on the basis of the end of the Initial Operational Phase (Feb. 2007). The outline of the next phase (the Continuous Development and Operational Phase, 2007- 2012) is presented for the surface albedo: to provide a new product generation by means of merging data between the polar satellite MetOp (Meteorological Operational, launched in Oct. 2006) and the MSG-2 geostationary satellite data. The LSA SAF program provides a mean to constrain the model representation of the climate trend as a consistent production of data sets guaranteed until at least 2019 with the forthcoming MSG-3 mission. Moreover, a reconstitution on daily basis of the Earth's albedo is made possible with the addition of cloud albedo fields based on the cloud classification. In addition to the presentation of the SAF-Land project, it is discussed that the retrieval of the surface albedo cannot be dissociated from the retrieval of the Aerosol Optical Thickness. An experimental method of simultaneous albedo and AOT daily retrieval is presented.
DE: 1640 Remote sensing (1855)
DE: 3322 Land/atmosphere interactions (1218, 1631, 1843)
SC: Atmospheric Sciences [A]
MN: 2007 Joint Assembly