Research Article

Mapping Global Solar Radiation from Long-Term Satellite Data in the Tropics Using an Improved Model

Figure 3

Positions of solar radiation monitoring stations where solar radiation data are used for the model validation (red circle). Positions of the stations where solar radiation data are employed to relate with (blue triangle) A, B, C and D indicate the main regions namely, the northern region, northeastern region, central region and the southern region.
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