Water Availability Calculator

Calculate total water availability including surface water, groundwater, and non-conventional sources.

Catchment Area (km2)

Annual Precipitation (mm)

Evapotranspiration (mm/year)

Surface Runoff Coefficient (%)

Groundwater Recharge (% of precipitation)

Upstream Inflow (million m3/year)

Reservoir Capacity (million m3)

Inter-basin Transfer (million m3/year)

Desalination (million m3/year)

325 million m3/year

650 mm equivalent

Precipitation

500M m3

Evapotranspiration

250M m3

Surface Runoff

150M m3

GW Recharge

75M m3

Total Renewable Resources325M m3

Net from Precipitation250M m3

Storage Capacity Ratio15.4%

Surface Water46%

Groundwater23%