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Water Resources - Total Internal Renewable
Entry ID: geodata_1004

Abstract: Total Internal renewable water resources (IRWR): long-term average annual flow of rivers and recharge of aquifers generated from endogenous precipitation. Double counting of surface water and groundwater resources is avoided by deducting the overlap from the sum of the surface water and groundwater resources. Surface water is the water of rivers and lakes; groundwater is the water captured in underground reservoirs. Surface water flows can contribute to groundwater replenishment through seepage in the river bed. Aquifers can discharge into rivers and contribute their base flow, the sole source of river flow during dry periods. Therefore, the respective flows of both systems are not wholly additive.
Related URL
Description: Search and access the data from the UNEP Environmental Data Explorer.
Geographic Coverage
Spatial coordinates   
  N: -60.5   S: -90.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Title: Water Resources - Total Internal Renewable
Dataset Release Date: 2010-01-01 00:00:00
Temporal Coverage
Start Date: 1958-01-01
Stop Date: 2012-12-31
Use Constraints Public
Data Center
FAO Statistical Databases, Food and Agriculture Organization, United Nations Supplemental Info
Data Center URL:

Data Center Personnel
Email: FAOSTAT-Queries at
Contact Address:
Food and Agriculture Organization (FAO)
Viale delle Terme di Caracalla
City: Rome
Postal Code: 00100
Country: ITALY
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Email: geo at
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-02-21
Last DIF Revision Date: 2017-08-24