Changes between Version 13 and Version 14 of Documentation/EvolutionOfFunctionality

Timestamp:

2020-05-06T21:12:06+02:00 (4 years ago)

Author:

luyssaert

Comment:

--

Documentation/EvolutionOfFunctionality

@@ -24 +24 @@
 || No || Snow temperature and dynamics || Describe snow energy budget in Krinner et al 2005 || How is it calculated now? See Tao || No changes || No changes ||
 || No || Soil hydrology || Describe bucket model. Calculated for X soil columns. || Vertical water flow in the soil is based on the Fokker-Planck equation that resolves water diffusion in non-saturated conditions from the Richards equation (Richards, 1931). The 4 m soil column consists of eleven moisture layers with an exponentially increasing depth (D'Orgeval et al., 2008). Bare soil, short vegetation, and tall vegetation each have their own water column. || No changes || No changes ||
-|| Soil and litter carbon and heterotrophic respiration || Following Parton et al. (1988), prescribed fractions of the different plant components go to the metabolic and structural litter pools following senescence, turnover or mortality. The decay of metabolic and structural litter is controlled by temperature and soil or litter humidity. For structural litter, its lignin content also influences the decay rate. || If there is insufficient N available to support the decomposition of the litter and soil carbon, heterotrophic respiration will be limited by the Nitrogen availability  || No changes ||
+|| No || Soil and litter carbon and heterotrophic respiration || Following Parton et al. (1988), prescribed fractions of the different plant components go to the metabolic and structural litter pools following senescence, turnover or mortality. The decay of metabolic and structural litter is controlled by temperature and soil or litter humidity. For structural litter, its lignin content also influences the decay rate. || If there is insufficient N available to support the decomposition of the litter and soil carbon, heterotrophic respiration will be limited by the Nitrogen availability  || No changes ||
 || No || Soil temperature || The soil temperature is computed according to the Fourier equation using a finite difference implicit scheme with seven numerical nodes unevenly distributed between 0 and 5.5 m (Hourdin, 1992). ? How many soil temperature columns did we have ? || The differences in the vertical discretisation between the soil hydrology and soil temperature resulted in difficulties to conserve energy. The soil hydrology and temperature are calculated on a single vertical discretisation. A separate soil temperature is calculated for the bare soil, short vegetation, and tall vegetation. || No changes || No changes ||
 || No || Vegetation distribution || Krinner et al 2005 describes global vegetation by 13 meta-classes (MTCs) with a specific parameter set (one for bare soil, eight for forests, two for grasslands and two for crop-lands) || The implementation of the MTC was generalized such that more than one PFT can be used to represent an MTC. ORCHIDEE 2.1 uses 13 MTCs to define 15 PFTs. || No changes || No changes || 
-|| Wood harvest || Not applicable || Wood harvest following LUHv2 maps. LUHv2 prescribes the amount of biomass to be harvested. Wood harvest is accounted for at the PFT level. || No changes || LUHv2 maps are used to decide whether the forests in a pixels are managed or not. If the forest is managed, ORCHIDEE calculates the harvested biomass following an RDI approach. ||
+|| No || Wood harvest || Not applicable || Wood harvest following LUHv2 maps. LUHv2 prescribes the amount of biomass to be harvested. Wood harvest is accounted for at the PFT level. || No changes || LUHv2 maps are used to decide whether the forests in a pixels are managed or not. If the forest is managed, ORCHIDEE calculates the harvested biomass following an RDI approach. ||