Table 2: Mean bias and spatial root mean square difference (RMSD) at different subdomains considered in Figure 1(b) for CMAP, CRU, and GPCC rainfall with respect to GPCP. Observational datasets (CMAP, CRU, and GPCC) are interpolated to GPCP grid. Bias is expressed as percentage of GPCP value while RMSD as mm/day.

ObservationsCMAPCRUGPCC
MetricsBiasRMSDBiasRMSDBiasRMSD

Sahel−10.350.41−2.790.40−6.340.51
Guinea1.530.748.511.313.331.17
West Africa−5.180.492.860.69−2.30 0.69