Ground bottom distance m (Water Overlay)

Icon	Attribute	Unit	Range	Description	Default value
	GROUND_BOTTOM_DISTANCE_M	m		Assumed distance under the terrain surface where the soil becomes impenetrable for water.	10

The groundwater level cannot go below this depth, relative to the surface. The maximum amount of water that can be stored underground is equal to this attribute multiplied by the local terrain's WATER_STORAGE_PERCENTAGE.

Notes

• A varying ground bottom distance can be configured when using a Bottom distance prequel.

How-to's

• How to add and remove an Attribute

See also

• Bottom distance prequel (Water Overlay)

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Water Module

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Model attributes

Allowed water increase m • Avg shore width m • Avg terrain width m • Avg terrain storage m • Breach measurement distance m • Bridge elevation • Culvert dem threshold m • Design flood elevation m • Extended reconstruction • Ground bottom distance m • Ground bottom pressure m • Ground water • Ground water depth m • Ground watertable with surface • Impact flood threshold m • Impact range m • Increased resolution • Infiltration factor s

Limit area • Limit rain • Max infiltration m • Max water bottom m • Microrelief storage fraction • Min max elevation • Object entry correction • Prequel surface level relative • Rise rate distance m • Sewer overflow threshold • Shoreline • Show duration flood level m • Stabilizer angle • Start date ms • Surface water • Surface water evaporation factor • Timeframe times • Timeframes • Unsaturated fraction • Weir dam multiplier • Weir move interval s • Weir move range m • Weir move step m

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Building attributes • Hydrological features • Hydraulic structures •  Terrain attributes • Results • Simulation data