ECOCLIMAP, A GLOBAL DATABASE OF LAND SURFACE PARAMETERS AT 1KM RESOLUTION J.L. CHAMPEAUX, V. MASSON,...
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Transcript of ECOCLIMAP, A GLOBAL DATABASE OF LAND SURFACE PARAMETERS AT 1KM RESOLUTION J.L. CHAMPEAUX, V. MASSON,...
ECOCLIMAP, A GLOBAL DATABASE OF LAND SURFACE PARAMETERS AT 1KM RESOLUTION
J.L. CHAMPEAUX , V. MASSON, F. CHAUVIN
METEO-FRANCE/CNRM, 42, Av Coriolis, 31057 Toulouse Cedex, FranceTph : (0)5 61 07 93 55, Fax : (0)5 61 07 96 26, email : [email protected]
Mots-clé : Landcover,surface parameters, leaf area index, atmospheric models
Input parameters:
• depending on soil- Percentage of sand and clay- Soil depth
• depending on vegetation- Fraction of végétation (VEG)- Leaf area index (LAI)- Minimal stomatal resistance- Rugosity (Z0)
• dépending on soil and vegetation- Albedo- Emissivity
Atmospheric forcing
SVAT SCHEME
Temporal profilesNDVI
NOAA/AVHRRor SPOT/VGT
Land covermaps
Climate maps
225 ecosystems
Database ofof surfaceparameters
Soil types
Daily Tmax Anomalies
10 years of simulation
by comparison
with the climatology
CRU(1961-1990)
for ECOCLIMAP
and the old database
Henderson-Sellers
Oldbase
Newbase
New -oldbase
Project: UPDATE ECOCLIMAP using GLC2000 landcover mapand Corine 2000 for Europe
Contribution of the GLC 2000 land cover map at global scale:- Consistent legend with LCCS classifiers- Good description of the different biomes- Real 1km resolution
The knowledge of regional experts will be very useful to specifythe surface parameters: fraction of vegetation, LAI ……..
THE DATABASE IS AVAILABLE ON THE WEB:
http://www.cnrm.meteo.fr/gmme/PROJETS/ECOCLIMAP/page_ecoclimap.htm