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Table 9 Temperature- and extraterrestrial radiation-based models and their coefficients and error estimation

From: Global solar radiation estimation from commonly available meteorological data for Bangladesh

Model no. Equations a b c \(R^2\) MPE MBE RMSE MARE t stat
40 \(H/H_0 = a[1-\hbox {exp}(-b(\Delta T^{\mathrm{c}}/H_0))]\) 0.5268 0.6639 1.688 0.8204 0.223397 0.017537 0.23263 0.053098 0.250746
41 \(H/H_0 = a(\sqrt{\Delta T})(1+bH_0+c(H_0)^2)\) āˆ’0.006515 āˆ’5.961 0.3323 0.93 0.49945 āˆ’0.00891 0.152122 0.033675 0.194633
42 \(H/H_0 = a + b\Delta T + cH_0\) 0.1534 0.03344 0.002771 0.8975 0.191296 6.24Eāˆ’05 0.171798 0.039023 0.001204