The ASCROM package provide four atomic models called
ClimaticWaterDemand, IrrigationDemand,
ActualIrrigation, WaterFlows and their
corresponding configuration in order to facilitate the use of the
models.
These four atomic models are intended to be coupled to simulate the
atmosphere/soil/plant system.
This coupled model is intended as an alternative to the Stics model when
testing the above and below ground water flows.
References: “Crop evapotranspiration - Guidelines for computing crop water requirements - FAO Irrigation and drainage paper 56” - See documentation http://www.fao.org/3/X0490E/X0490E00.htm#Contents