Journal of Solar Energy / 2014 / Article / Tab 3

Research Article

Empirical Models for Estimating Global Solar Radiation over the Ashanti Region of Ghana

Table 3

Summary of the model evaluations using sunshine hours.

Model form MBE (MJ m−2 day−1)MPE (%)RMSE (MJ m−2 day−1)

Proposed0.95380.9098−0.01020.05850.0338
Turton (1987) [20]0.95810.91792.4926−14.31708.2670
Fagbenle (1990) [21]0.95780.91741.6177−9.29195.3654
Otu-Danquah (1990) [22]0.95610.91422.1885−12.57067.2586
Jackson and Akuffo (1992) [23]0.95530.91251.4688−8.43654.8715
Augustine and Nnabuchi (2009b) [18]0.95750.91682.4430−14.03198.1024

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