Water Resources - Total External (Actual)

Total actual external renewable water resources (ERWR actual): That part of the country's annual renewable water resources which is not generated in the country. It includes inflows from upstream countries (groundwater and surface water), and part of the water of border lakes or rivers. Contrary to natural external renewable water resources (i.e. the situation without human influence), ERWRactual take into account the quantity of flow reserved by upstream (incoming flow) and/or downstream (outflow) countries through formal or informal agreements or treaties, and possible water abstraction occurring in the upstream countries. Therefore, it may vary with time.