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Option 3: Allows a variable surface area per time step calculated as a non-linear function of storage volume at that time step using user-defined coefficients according to a regression relationship as defined by McMurray (2004) 1
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Where:
At- The surface water area at time step t
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The seepage volume from the farm dam at time step t is estimated by Equation 11:
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If ActSeepageVolt is greater than the available water Vt, the estimation is then continued by Equation 12, else by Equation 13:
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Where:
ActSeepageVolt - The actual seepage volume from the farm dam at time step t
SeepageTSt - The inputted parameter of seepage at time step t
Vt- The intermediate storage volume (i.e., the available water) at time step t from Equation 10
References
1 McMurray, D, 2004. Farm Dam Volume Estimations from Simple Geometric Relationships. Department of Water, Land and Biodiversity Conservation. South Australia. Report No. DWLBC 2004/48.