Solar Radiation Assessed by CPTEC Model GL: A Comparison between Results with GOES and MSG over Northeastern Brazil

Distribution of solar radiation over South America is daily assessed by the CPTEC's GL1.2 model using GOES satellite imagery (VIS channel). Meteosat Second Generation full-resolution imagery is also being ingested from 2007 on. VIS MSG images used for estimating solar radiation with essentially the same code GL show similar results over Northeastern Brazil (where lines-of-sight of both satellites have similar zenith angles, helping comparisons). This result encourages the integrated use of both satellites for monitoring of solar radiation over a large area including South America and Africa.