Predicting Regional Evapotranspiration and Groundwater Recharge: A Country-Wide Study From Ghana

Document Type

Article

Journal/Book Title/Conference

Water International

Volume

38

Issue

4

Publication Date

6-1-2013

First Page

408

Last Page

432

Abstract

This study uses a modified Granger and Gray model to estimate evapotranspiration and then groundwater recharge in Ghana. The overall results show that the model is capable of reliably predicting regional evapotranspiration using a small number of monitoring stations with meteorological data only. This information allows the estimation of groundwater recharge via the water balance equation. The results indicate that the aquifer system is sufficiently recharged, especially in northern Ghana, where dry conditions prevail, to allow the development of groundwater resources to satisfy increasing water demands.

Link to Full Text

Share

COinS