skip to main content
Excess GW Storage
This method category is dependent upon the selection of the Single Computed Outflow in the Solution Type category. The Excess GW Storage method is used to specify how excess groundwater will be modeled.
* No Excess Storage
This is the default method. It performs no calculations.
There are no slots specific to this method.
* Excess Storage to Outflow
Used if you want to specify a maximum possible storage in the groundwater. Any calculated storage that exceeds this value is converted to Outflow.
Slots Specific to This Method
 Max GW Capacity
Type: TableSlot
Units: VOLUME
Description: Maximum storage capacity of the groundwater system
Information:  
I/O: Optional; this slot is only used if it is input.
Method Details  
The calculated Storage value is first checked against Max GW Capacity. If Storage is greater than Max GW Capacity, excess storage is calculated as the difference between Storage and Max GW Capacity. Then, Storage is set equal to Max GW Capacity. The amount of excess storage is converted to a flow rate and added to the Outflow. If Storage is less than Max GW Capacity, nothing is done.
* Excess Storage Divert
Used if you want to specify a maximum possible storage in the groundwater. Any calculated storage that exceeds this value is converted to a flow value and set in a separate, linkable slot.
Slots Specific to This Method
 Max GW Capacity
Type: TableSlot
Units: VOLUME
Description: Maximum storage capacity of the groundwater system
Information:  
I/O: Optional; this slot is not used if it is not input.
 Excess GW Outflow
Type: SeriesSlot
Units: FLOW
Description: Represents the required flow rate to dissipate any excess storage
Information: Calculated as the excess storage (Storage minus Max GW Capacity) divided by the timestep length.
I/O: Output only
Method Details  
The calculated Storage value is first checked against Max GW Capacity. If Storage is greater than Max GW Capacity, excess storage is calculated as the difference between Storage and Max GW Capacity. Then, Storage is set equal to Max GW Capacity. The amount of excess storage is converted to a flow rate and the value is set on the Excess GW Outflow slot. If Storage is less than Max GW Capacity, nothing is done.
Revised: 07/17/2020