Event Title

Modeling Steady-State Evaporation from a Shallow Water Table

Presenter Information

Morteza Sadeghi

Location

ECC 307/309

Event Website

http://water.usu.edu/

Start Date

4-4-2012 2:10 PM

End Date

4-4-2012 2:30 PM

Description

Evaporation from soil constitutes a significant component of water balance in hydrology. The presence of a shallow water table can lead to sustained water loss that is dependent on soil hydraulic properties and water table depth. In this paper, an exact analytical solution to steady-state evaporation from a shallow water table is developed. The novel solution shows excellent agreement with numerical solutions for a broad range of soil texture from sand to clay. The applicability of the solution to predict the location of the drying front was also verified using experimental data. The solution may be used for directly modeling steady-state evaporation or for inverse determination of soil hydraulic properties.

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Apr 4th, 2:10 PM Apr 4th, 2:30 PM

Modeling Steady-State Evaporation from a Shallow Water Table

ECC 307/309

Evaporation from soil constitutes a significant component of water balance in hydrology. The presence of a shallow water table can lead to sustained water loss that is dependent on soil hydraulic properties and water table depth. In this paper, an exact analytical solution to steady-state evaporation from a shallow water table is developed. The novel solution shows excellent agreement with numerical solutions for a broad range of soil texture from sand to clay. The applicability of the solution to predict the location of the drying front was also verified using experimental data. The solution may be used for directly modeling steady-state evaporation or for inverse determination of soil hydraulic properties.

https://digitalcommons.usu.edu/runoff/2012/AllAbstracts/46