Title :
Land surface parameters derived from SPOT/VEGETATION data for use in meteorological models
Author :
Champeaux, J.L. ; Han, K.S. ; Franchistéguy, L. ; Roujean, J.-L. ; Lacaze, R.
Author_Institution :
Meteo-FRANCE/CNRM, Toulouse, France
Abstract :
In atmospheric models, the initialization of soil-vegetation-atmosphere transfer scheme (SVAT) requires a few surface parameters like leaf area index (LAI), fraction of vegetation and albedo. These parameters are currently based on look-up tables and land cover maps. This paper presents different means to derive land cover maps, LAI and albedo over France using the SPOT/VEGETATION data for the year 2000. The geometric and radiometric quality of SPOT/VEGETATION leads to an improvement of surface parameters compared to AVHRR products.
Keywords :
albedo; terrain mapping; topography (Earth); vegetation mapping; AD 2000; AVHRR products; France; LAI; SPOT data; SVAT; VEGETATION data; albedo; atmospheric models; geometric quality; land cover maps; land surface parameters; leaf area index; look-up tables; meteorological models; radiometric quality; soil-vegetation-atmosphere transfer; Atmospheric modeling; Ecosystems; Infrared sensors; Infrared spectra; Land surface; Meteorology; Numerical models; Predictive models; Reflectivity; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1293848
