Validation of the ORCHIDEE land surface model against Fluxnet data
Abstract
ORCHIDEE is a land surface model that simulates all the biogeochemical processes influencing the global carbon cycle at the surface (photosynthesis, respiration, carbon allocation, fire,…) as well as water and energy exchanges with the atmosphere. The model can be coupled to atmospheric general circulation models (e.g. LMDZ) or run “off line”. In this study we test and validate ORCHIDEE against CO2, water and energy flux tower measurements performed at about 40 sites from the FluxNet network. Nearly all plant functional types (PFTs) were represented. The model is forced by meteorological data collected at each site. It is validated against flux measurements at different time scales, in order to check its ability to reproduce the diurnal cycle as well as the inter-annual variability of the fluxes. Results and statistical tests are presented for each site and each PFT.
- Publication:
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EGS - AGU - EUG Joint Assembly
- Pub Date:
- April 2003
- Bibcode:
- 2003EAEJA....11304O