EquilAdjustPsi

Factor to account for differences between water tension in the middle of top layer and actual vapour pressure at soil surface.

Default	Unit	Symbol	Equation	Function
1	-	ψeg	(4.7), (4.8)	Vapour pressure at the soil surface

Normal values ranges from 0 to 2. 0 implies that there is no difference in soil moisture between the soil surface and the uppermost soil layer. 1 implies that the surface can be two orders of magnitudes drier and one order of magnitude wetter than the uppermost soil layer, if the “MaxSurf” parameters are set to default values.