Evaporation m (Water Overlay)

Attribute	Unit	Description
EVAPORATION_M	end-time, m	An array of values, each pair indicating until what time that period of evaporation will last and what amount evaporates in that period.

Notes

Image of the evaporation model in the Water Module

• A maximum of 10.000 values (5.000 pairs) can be defined.
• Internally each period with amount values are converted to an evaporation rate per second at a particular time in the simulation.
• The default value is set to 0.125 mm in 2 hours (0.000125 m in 7200 seconds), which corresponds to 1.5 mm per day. This value is based on the theory described in 2.3 Gewasverdamping<reference name="GWZ2016"/> in the book Grondwaterzakboekje. Based on the plotted lines, it was selected as an average of march, june and september, for a cloudy rainy day.

How-to's

• How to configure more realistic evaporation rates for a Water Overlay

See also

• Water evaporation factor (Water Overlay)

References

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Rain m • Evaporation m

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