Evaporation m (Water Overlay): Difference between revisions
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* 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 derived from the theory described in 2.3 Gewasverdamping{{ref|GWZ2016}} in the book Grondwaterzakboekje, which combines the formula of Makkink with a temperature dependent factor{{ref|GWZ2016-2}} (which is approximately linear between 0 and 24 C). Based on the reference evaporation graph{{ref|GWZ2016-3}}, the rate was averaged for March, June, and September during cloudy, rainy days typical of heavy rainfall events. | * 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 derived from the theory described in 2.3 Gewasverdamping{{ref|GWZ2016}} in the book Grondwaterzakboekje, which combines the formula of Makkink with a temperature dependent factor{{ref|GWZ2016-2}} (which is approximately linear between 0 and 24 C). Based on the reference evaporation graph{{ref|GWZ2016-3}}, the rate was averaged for March, June, and September during cloudy, rainy days typical of heavy rainfall events. | ||
|seealso= | |seealso= | ||
* [[Water | * [[Water transpiration factor (Water Overlay)]] | ||
* [[Ground transpiration formula (Water Overlay)]] | * [[Ground transpiration formula (Water Overlay)]] | ||
* [[Surface evaporation formula (Water Overlay)]] | * [[Surface evaporation formula (Water Overlay)]] | ||
Revision as of 13:01, 13 July 2026
| 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
- An array of maximum 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 derived from the theory described in 2.3 Gewasverdamping[1] in the book Grondwaterzakboekje, which combines the formula of Makkink with a temperature dependent factor[2] (which is approximately linear between 0 and 24 C). Based on the reference evaporation graph[3], the rate was averaged for March, June, and September during cloudy, rainy days typical of heavy rainfall events.
How-to's
See also
- Water transpiration factor (Water Overlay)
- Ground transpiration formula (Water Overlay)
- Surface evaporation formula (Water Overlay)
- Evapotranspiration model (Water Overlay)
References
- ↑ Grondwaterzakboekje, Gwz2016 (Impressed druk en print) ∙ Makkink, Bram Bot (2016) ∙ Page(s): 2.3 Gewasverdamping, Referentiegewasverdamping
- ↑ Grondwaterzakboekje, Gwz2016 (Impressed druk en print) ∙ Makkink, Bram Bot (2016) ∙ Page(s): Tabel 2.3 Benadering van en
- ↑ Grondwaterzakboekje, Gwz2016 (Impressed druk en print) ∙ Makkink, Bram Bot (2016) ∙ Page(s): Fig. 2.7 referentiegewasverdamping
- Group
- Weather
- Bottom distance • Bottom pressure • Bottom resistance • Ground conductivity • Groundwater datum • Groundwater depth • Manning • Max infiltration • Microrelief • Sewer level • Surface level • Surface u • Surface v • Terrain elevation • Unsaturated fraction
- Elevation
- Elevation model
- Related