MacDonald, A.M. 
ORCID: https://orcid.org/0000-0001-6636-1499; Calow, R.C.; Nicol, A.L.; Hope, B.; Robins, N.S..
2001
Ethiopia : water security and drought.
British Geological Survey.
(WC/01/002)
(Unpublished)
Abstract
A map showing groundwater availability during drought for Ethiopia presented at a scale of 1:3,500,000. The map was
constructed by combining three factors:
(1) rock permeability (derived from the hydrogeology map)
(2) the ability of the rock to store water (from the hydrogeology map)
(3) recharge to the groundwater (estimated from rainfall data).
Areas of high permeability, high storage and high recharge have most groundwater available during drought
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