dataset: ENSYM_ET100_DRY

Calculated using the Ensym model. The potential evapotranspiration minus actual un-saturated evapotranspiration calculation can be used to set an upper limit to groundwater evaporation rates. Ensym estimates daily spatial evapotranspiration by solving for physical processes using analytical solutions and empirical equations. Evaporation of water from the soil surface is calculated using a Ritchie's two-stage evaporation algorithim. After infiltration , drying occurs at the potential rate up to a specified limit (stage I) and thereafter at a rate reflecting diffusion processes that are assumed proportional to the square root of time (Stage II). In general transpiration is calculated as a function of pan evaporation, leaf area index, soil moisture content, plant density and temperature however the specifics of the calculations vary with landuse and the particular plant growth model utilised. For further information: https://ensym.dse.vic.gov.au/home/aboutensym Beverly, C., 2007. Technical Manual - Models of the Catchment Analysis Tool. Victoria. Department of Sustainability and Environment.