cal_Kr_for_DualKc: Dimensionless evaporation reduction coefficient

In simET: Tools for Simulation of Evapotranspiration of Field Crops and Soil Water Balance

Dimensionless evaporation reduction coefficient

Description

It dependent on the soil water depletion (cumulative depth of evaporation) from the topsoil layer (Kr = 1 when De,i-1 is equal or lesser than REW)

Usage

cal_Kr_for_DualKc(TEW, REW, De)

Arguments

TEW	maximum cumulative depth of evaporation (depletion) from the soil surface layer when Kr = 0 (TEW = total evaporable water)
REW	cumulative depth of evaporation (depletion) at the end of stage 1 (REW = readily evaporable water), mm
De	cumulative depth of evaporation (depletion) from the soil surface layer at the end of day i-1 (the previous day),mm

Value

A value for evaporation reduction coefficient

References

Allen, R. G., Pereira, L. S., Raes, D., & Smith, M. FAO Irrigation and drainage paper No. 56. Rome: Food and Agriculture Organization of the United Nations, 1998.

simET documentation built on Aug. 19, 2023, 5:09 p.m.