A new modified Potential Transpiration variable have been introduced disregarding the
reduction of canopy resistance that are related to the vapor pressure deficit and the
global radiation as calculated by using the Lohammar equation in the CoupModel.
The new variable in the Meteorological data module is named
PotMaxTranspiration and includes all canopies.
For separate canopies we have additional outputs in the Potential Transpiration Module:
Pot MaxTranspiration
Resistance Min Canopy
Response Transp Atm
Note that the atmospheric water stress depends on the parameters in the Lohammar equation
The suggestion to include this is originating from Lorenz Walthert