Application of the Surface Energy Balance in Richard's equation-based model using climatic data to calculate soil evaporation
- Czech University of Life Sciences Prague, Faculty of Environmental Sciences, Department of Water Resources and Environmental Modeling, Czechia (gustavocardenas507@gmail.com)
This research aims to observe the behaviour between heat flow at the limit of the unsaturated area and the earth's surface (evaporation) through different methods based on the surface energy balance. This behavior has been determined by the DRUtES. DRUtES is a free software able to determine the evaporation in the surface using climate and hydraulic parameters determined by the Richard equation. Richards’ equation describes the flow of water in an unsaturated porous medium due to the actions of gravity and capillarity neglecting the flow of the non-wetting phase, usually air (Farthing & Ogden, 2017).
The results obtained have been compared with the Penman-Monteith potential evapotranspiration model, this one as a referenced value. The results obtained help to understand the loss of water in the unsaturated area. This first approach using DRUtES and evaporation methods will allow a deeper investigation in the future regarding the impact of climate change on climate variables and their effects on soil moisture (unsaturated area) and natural aquifer recharge.
Key words: Evaporation, surface energy balance, Richard's Equation, zone unsaturated, Penman-Monteith.
How to cite: Cárdenas-Castillero, G. and Arbelaez, J.: Application of the Surface Energy Balance in Richard's equation-based model using climatic data to calculate soil evaporation, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-20055, https://doi.org/10.5194/egusphere-egu2020-20055, 2020.
This abstract will not be presented.