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 |
---|---|---|---|---|---|---|---|---|---|---|
13 | \(H/H_0=a(S/S_0)^{\mathrm{b}}+cC\) | 1.339 | 3.267 | 0.4219 | 0.9146 | 0.066105 | 0.006986 | 0.171177 | 0.037596 | 0.135465 |
14 | \(H/H_0=a(S/S_0)^2+bC^2\) | 1.006 | 0.4028 | – | 0.9023 | 0.295246 | 0.006515 | 0.188949 | 0.038023 | 0.114425 |
15 | \(H/H_0 = a(S/S_0)^5+bP^c\) | 1.41 | 0.1989 | 0.1082 | 0.8997 | 0.215373 | 0.00887 | 0.197046 | 0.039099 | 0.149449 |
16 | \(H/H_0=a(S/S_0)^3+P/b\) | 1.4113 | 1.131 | – | 0.8976 | −0.00125 | 0.007672 | 0.189384 | 0.04183 | 0.134476 |
17 | \(H/H_0=a(S/S_0)^{\mathrm{b}}+cH_0\) | 0.9802 | 3.555 | 0.03149 | 0.906 | −0.27016 | 0.000564 | 0.191613 | 0.035362 | 0.009765 |
18 | \(H/H_0=a(S/S_0)^{\mathrm{b}}+c\sqrt{H_0}\) | 0.8906 | 3.988 | 0.1102 | 0.9352 | 0.195275 | 0.000947 | 0.154964 | 0.032697 | 0.020278 |
19 | \(H/H_0=a(S/S_0)^{\mathrm{b}}+c\Delta T^2\) | 0.3834 | 0.162 | 0.001501 | 0.9063 | 0.15129 | 0.012653 | 0.152788 | 0.030127 | 0.275613 |
20 | \(H/H_0=a(S/S_0)+b\sqrt{\Delta T}\) | 0.1133 | 0.1377 | – | 0.8994 | 0.174281 | 0.01076 | 0.159612 | 0.033007 | 0.224097 |
21 | \(H/H_0=a\sqrt{(S/S_0)}+a\sqrt{\Delta T}\) | 0.1274 | – | – | 0.8872 | 0.607408 | −0.00757 | 0.179579 | 0.037655 | 0.139899 |