Total renewable surface water
This is the sum of the internal renewable surface water resources and the total external renewable surface water resources. An example of the calculation rules is available in this sheet: http://www.fao.org/nr/water/aquastat/data/wrs/readPdf.html?f=AFG-WRS_eng.pdf.
[Total renewable surface water] = [Surface water: total external renewable]+[Surface water produced internally]
Climate, water resources
View data for this variable  in the AQUASTAT Main Database