Ground bottom pressure m (Water Overlay): Difference between revisions

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{{Overlay attribute
[[File:Wateroverlay_wizard_ground_bottom_pressure_m_setting.png|thumb|right|The ground bottom pressure m setting can be configured in the Bottom boundary step of a [[Water Overlay]] wizard, when the [[Ground water (Water Overlay)|ground water mode]] set to '''Complete'''.]]
|attribute=SEEPAGE_FLUCTUATION
{{Overlay attributes|<onlyinclude>
|unit=m (head)
{{Overlay attributes|type=row|overlay=Water
|description=The additional head of higher areas outside the project causing groundwater seepage. This seepage fluctuation is [[Underground_seepage_formula_(Water_Overlay)|added on top of the base seepage]]. This variation can be defined over time, similar to a weather's [[Rain_m_(Water_Overlay)|rainfall]]
|attribute=GROUND_BOTTOM_PRESSURE_M
|icon=[[File:waterwizard_icon_seepage_fluctuation.png]]
|unit=m
}}
|description=Optional: The additional head of higher areas outside the project causing water to flow in or out of the ground from deeper ground layers through the bottom boundary.  
|icon=waterwizard_icon_bottom_pressure.png
|defaultvalue=0
}}</onlyinclude>}}
 
This optionally fluctuating bottom pressure is added to the spatially defined [[Bottom pressure prequel (Water Overlay)|Bottom pressure]] and [[Bottom resistance prequel (Water Overlay)| resistance]], to calculate [[Ground bottom flow formula (Water Overlay)|ground bottom flow]].
 
This attribute can be defined as [[time sequence (Water Overlay)|values over time]], using an array of values, defined as pairs of the {{time sequence start}} and its value from that point on.


==How-to's==
{{article end
|notes=
* Only configurable when the [[Ground water (Water Overlay)|ground water mode]] is set to '''Complete'''.
|howtos=
* [[How to add and remove an Attribute]]
* [[How to add and remove an Attribute]]
|seealso=
* [[Bottom resistance prequel (Water Overlay)]]
* [[Bottom pressure prequel (Water Overlay)]]
* [[Ground model (Water Overlay)#Ground bottom flow]]
* [[Ground bottom flow result type (Water Overlay)]]
* [[Ground bottom flow formula (Water Overlay)]]
}}


==See also==
{{WaterOverlay model attribute nav}}
* [[Underground_seepage_formula_(Water_Overlay)|Seepage formula]]
* [[Seepage_Geotiffs_(Water Overlay)|Seepage geotiffs]]
* [[Ground_last_seepage_result_type_(Water_Overlay)|Seepage result type]]
 
{{WaterOverlay_model_attribute_nav}}

Latest revision as of 13:12, 29 January 2024

The ground bottom pressure m setting can be configured in the Bottom boundary step of a Water Overlay wizard, when the ground water mode set to Complete.

This optionally fluctuating bottom pressure is added to the spatially defined Bottom pressure and resistance, to calculate ground bottom flow.

This attribute can be defined as values over time, using an array of values, defined as pairs of the start-time and its value from that point on.