A Comparative Study of Some Regression Models to Estimate the Global Solar Radiation on a Horizontal Surface from Sunshine Duration and Meteorological Parameters for Ghardaïa Site, Algeria

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr class="thead"><td align="left"> </td><td align="center"><span style="width: 8.7250004px;"><svg height="7.9499998" id="M56" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 8.7250004 7.9499998" width="8.7250004" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,7.675)"><path d="M483 97q-42 -50 -88.5 -79.5t-68.5 -29.5q-37 0 -17 93l22 102h-2q-54 -79 -144 -149q-59 -46 -100 -46q-24 0 -43 29t-19 86q0 78 34.5 153t94.5 120q41 31 94 51.5t98 20.5q29 0 72 -9q26 -6 39 -6l2 -4q-30 -117 -67 -323q-8 -41 2 -41q16 0 79 58zM374 387
q-32 15 -73 15q-52 0 -83 -23q-48 -36 -78 -108.5t-30 -152.5q0 -33 8.5 -50.5t20.5 -17.5q31 0 107 79t99 132q15 40 29 126z" id="x1D44E"></path></g>
</svg></span></td><td align="center"><span style="width: 8.1000004px;"><svg height="12.4375" id="M57" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 8.1000004 12.4375" width="8.1000004" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.162)"><path d="M452 333q0 -82 -46 -164t-116 -128q-81 -53 -158 -53q-26 0 -51 13t-37 32q-26 41 -6 134l91 431q7 40 2.5 47t-34.5 7h-33l2 25q36 4 72.5 13t58.5 15.5t28 6.5q10 0 4 -29l-91 -391h2q65 77 130 116.5t105 39.5q36 0 56.5 -32t20.5 -83zM365 316q0 76 -35 76
q-31 0 -93.5 -49t-107.5 -110q-12 -37 -17 -70q-9 -65 12 -96.5t59 -31.5q31 0 56 14q53 29 89.5 105t36.5 162z" id="x1D44F"></path></g>
</svg></span></td><td align="center"><span style="width: 7.0250001px;"><svg height="7.9499998" id="M58" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 7.0250001 7.9499998" width="7.0250001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,7.675)"><path d="M383 397q0 -32 -35 -49q-12 -6 -23 8q-37 45 -84 45t-90 -71q-40 -65 -40 -167q0 -57 22 -86t59 -29q38 0 81.5 24.5t69.5 51.5l16 -21q-44 -53 -104 -84t-109 -31q-56 0 -89.5 41t-33.5 117q0 61 30 124t79 105q33 28 81 50.5t86 22.5q34 0 59 -15.5t25 -35.5z" id="x1D450"></path></g>
</svg></span></td><td align="center"><span style="width: 9.5625px;"><svg height="12.4375" id="M59" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 9.5625 12.4375" width="9.5625" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.162)"><path d="M530 686q-79 -330 -126 -595q-5 -24 4 -24q22 0 77 53l16 -24q-42 -49 -88 -78.5t-72 -29.5q-37 0 -19 83l21 99h-2q-62 -83 -153 -141q-65 -41 -97 -41q-28 0 -48 31.5t-20 91.5q0 71 32.5 144t88.5 118q36 30 94 52.5t94 22.5q38 0 68 -13l29 158q7 40 2 47.5t-38 7.5
h-35l1 26q39 4 76 13.5t58.5 17t27.5 7.5q16 0 9 -26zM387 375q-11 11 -38.5 20t-51.5 9q-45 0 -79 -23q-46 -32 -77.5 -107.5t-31.5 -143.5q0 -40 9.5 -58.5t23.5 -18.5q40 0 113.5 70t99.5 118z" id="x1D451"></path></g>
</svg></span></td><td align="center">CC</td><td align="center">RMSE</td><td align="center">MBE</td></tr><tr><td class="thead-hr" colspan="8"><hr/></td></tr><tr><td align="left">Linear</td><td align="center">0.420</td><td align="center">0.363</td><td align="center"> </td><td align="center"> </td><td align="center">0.785</td><td align="center">0.0453</td><td align="center">−0.0012</td></tr><tr><td align="left">Quadratic</td><td align="center">0.403</td><td align="center">0.446</td><td align="center">−0.0737</td><td align="center"> </td><td align="center">0.787</td><td align="center">0.0451</td><td align="center">−0.0007</td></tr><tr><td align="left">Logarithmic</td><td align="center">0.701</td><td align="center">0.106</td><td align="center"> </td><td align="center"> </td><td align="center">0.627</td><td align="center">0.0792</td><td align="center">0.0281</td></tr><tr><td align="left">Exponential</td><td align="center">0.264</td><td align="center">0.198</td><td align="center"> </td><td align="center"> </td><td align="center">0.763</td><td align="center">0.0511</td><td align="center">−0.0182</td></tr><tr><td align="left">Abdalla</td><td align="center">0.519</td><td align="center">0.357</td><td align="center">−0.0018</td><td align="center">−0.00126</td><td align="center">0.898</td><td align="center">0.0429</td><td align="center">−0.00059</td></tr><tr><td align="left">Ojosu et al.</td><td align="center">0.449</td><td align="center">0.358</td><td align="center">−0.00445</td><td align="center">−0.00619</td><td align="center">0.892</td><td align="center">0.0443</td><td align="center">−0.00068</td></tr><tr><td align="left">Hargreaves et al.</td><td align="center">0.261</td><td align="center">0.115</td><td align="center"> </td><td align="center"> </td><td align="center">0.431</td><td align="center">0.0883</td><td align="center">−0.00073</td></tr><tr class="table-tr"><td colspan="8"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

International Scholarly Research Notices

tab7

Table 7

Table 7: A Comparative Study of Some Regression Models to Estimate the Global Solar Radiation on a Horizontal Surface from Sunshine Duration and Meteorological Parameters for Ghardaïa Site, Algeria 

Table 7 | A Comparative Study of Some Regression Models to Estimate the Global Solar Radiation on a Horizontal Surface from Sunshine Duration and Meteorological Parameters for Ghardaïa Site, Algeria 