Author :
KOFFI Kouakou Valentin
The study first studied the water quality of both surface and groundwater in a part of the crystalline basement aquifer of Northern Ghana which covers 25000 km2 and used five different methods to estimate present day recharge, namely the baseflow (BF) recession analysis, the Chloride Mass Balance (CMB) method, the Water Table Fluctuation (WTF) method, the model based method using the distributed WetSpass model and the simple water balance method. The impact of climate change was investigated based on two Regional Climate Models (RCM) nested in three Global Climate Models (GCM) under scenarios RCP4.5 and RCP8.5.