Table 2: Validation of the one variable correlation radio refractivity model for osogbo under different statistical tests.

Models R2 MBE RMSE MPE NSE IA
Eqn.16a 11.0 -2.9696 12.0094 0.7183 99.8779 99.9692
Eqn.16b 22.3 -0.5024 10.8893 0.0450 99.8996 99.9748
Eqn.16c 94.6 -0.0426 2.8806 0.0058 99.9930 99.9982
Eqn.16d 27.7 -0.0311 10.4910 -0.0799 99.9068 99.9767