ORCHIDEE is one of the 13 global hydrology models following the ISIMIP2a protocol which form the base of simulations for the ISIMIP2a global water sector outputs; for a full technical description of the ISIMIP2a Simulation Data from Water (global) Sector, see this DOI link: http://doi.org/10.5880/PIK.2017.010
Spin-Up Design: We use the 1901-1910 climate condition, pre-industry CO2 (287.14 ppm), land cover map of 1860 to do the spin-up until the soil carbon to be equilibrium. Then a simulation from 1861 to 1900 was performed with varied CO2 and land-cover/land-use change, and climate of 1901-1910 cycled. The final transient simulation of 1901-2012 was forced by varied climate, CO2 and land-cover/land-use change.
Natural Vegetation Partition: Prescribe natural vegetation cover. The land cover map is derived from GLC2000, and classified according to Poulter et al., 2011. The land-cover change is derived from Hurtt et al., dataset.
Management & Adaptation Measures
Technological Progress: No
Soil Layers: 11 layer water difussion
Water-Use Types: No
Water-Use Sectors: we only have nosoc runs
Runoff Routing: will be based on DDM30
Land-Use Change Effects: MIRCA dynamic land use change
Dams & Reservoirs
Dam And Reservoir Implementation: No
Is Co2 Fertilisation Accounted For?: True
How Is Vegetation Represented?: Dynamic simulation of growth and productivity (with prescribed spatial distribution of crops and pasture), annual natural vegetation fraction (PFTs) is forced based on harmonized GLC2000 for year 2000 and LUH dataset (Hurtt et al., 2011) for land cover change.
Potential Evapotranspiration: "Penman-Monteith, Milly’s correction
for soil moisture stress is applied."
Snow Melt: Energy balance at the snow surface
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