The Groundwater to groundwater flow variable represents subsurface flow from one groundwater node to another. Create a runoff/infiltration link from one groundwater node to another, then enter data on the link. The link will have a direction, which indicates the normal direction of flow. Negative values indicate flow in the reverse direction. If included, do not also include flow in Natural Recharge.
Entered on: Data View, Branch: Supply and Resources \ Runoff and Infiltration \ from <source GW> \ to <destination GW>, Category: Inflows and Outflows, Tab: Groundwater to Groundwater Flow