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V_t- The intermediate storage volume (i.e., the available water) at time step t from Equation 10

The evaporation volume from the farm dam at time step t is calculated by Equation 14:

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If ActEvapVol_t is greater than the available water V_t, the estimation is as in Equation 15, else by Equation 16.

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Where:

ActEvapVol_t – The actual evaporation volume from the farm dam at time step t

Evap_t - The inputted evaporation timeseries parameter at time step t

V_t- The intermediate storage volume at time step t from Equation 12 or 13

Available water

The available water for an onstream farm dam can then be calculated by Equation 17 as:

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Where:

AvailableWater_t – The available water for the demand and release in the farm dam at time step t

DeadStorageVol_t – The dead storage volume required in the farm dam at time step t

V_{t- The intermediate storage volume at time step t from Equation 1015 or 16}

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.