Total renewable water resources
Total Renewable Water Resources (TRWR): The sum of internal renewable water resources (IRWR) and external renewable water resources (ERWR). It corresponds to the maximum theoretical yearly amount of water available for a country at a given moment.
[Total renewable water resources] = [Total renewable surface water]+[Total renewable groundwater]-[Overlap between surface water and groundwater]
Climate, water resources
View data for this variable  in the AQUASTAT Main Database