Table 6: Mean bias and spatial root mean square difference (RMSD) at different sub-domains considered in Figure 1(b) from the ensemble of GCMs (Ens/GCMs), the ensemble of RCMs driven by the same GCMs (Ens/ECHAM5 and Ens/HadCM3), and the ensemble of all RCMs (multi-model ensemble: Ens/RCMs) rainfall with respect to GPCP. Ensembles data are interpolated to GPCP grid. Bias is expressed as percentage of GPCP value while RMSD as mm/day.

EnsemblesEns/GCMsEns/ECHAM5Ens/HadCM3Ens/RCMs
MetricsBiasRMSDBiasRMSDBiasRMSDBiasRMSD

Sahel−12.990.81−4.690.88−3.550.90−4.120.63
Guinea11.092.1132.873.195.141.6519.002.11
West Africa−2.351.1314.251.764.351.019.301.09