Groundwater - VOSWMM

Groundwater parameters should be applied to model the groundwater flow between an aquifer and the drainage system node.

Parameter Name	Description	Default Value
Aquifer	Aquifer object that lies below subcatchment (leave blank for no groundwater).
Receiving Node	The node name which receives groundwater from the aquifer
Surface Elevation [m]	Elevation of ground surface for the subcatchment (m or ft).	0
Groundwater Flow Coeff.	Multiplier of the distance between actual and threshold GW levels	0
Groundwater Flow Expon.	Exponent of the distance between actual and threshold level GW levels	0
Surface Water Flow Coeff.	Multiplier of the distance between surface water level and threshold GW level	0
Surface Water Flow Expon.	Exponent of the distance between surface water level and threshold GW level	0
Surface-GW Interaction Coeff.	Multiplier of the product of GW height and surface water height above aquifer bottom.	0
Fixed Surface water Depth [m]	Fixed depth of surface water at receiving node (ft or m) (set to zero if surface water depth will vary as computed by flow routing	0
Threshold Groundwater Elev. [m]	Groundwater elevation that must be reached before any flow occurs (ft or m). leave blank to use the receiving node’s invert elevation.
Bottom Elevation [m]	Elevation of the bottom of the aquifer
Water Table Elevation [m]	Elevation of the water table in the aquifer at the start of the simulation
Unsat. Zone Moisture	Moisture content of the unsaturated upper zone of the aquifer at the start of the simulation (fraction).