GOES-R data from 11.2 µm, 12.3 µm, 3.9 µm, 0.64 µm, 0.47 µm and 1.6 µm are used for the cloud fraction detection, which is compared with hourly METAR data quantitatively and qualitatively.
The study is done for hourly cloud fraction for overestimation and underestimation of Satellite data compare with METAR during Day and Night period for 500 stations in Canada and US. We found overestimation and underestimation of cloud fraction occurred in less than 3% of cases (day or night ). Overall error statistics for the satellite estimations were around -2% bias and 20% mean absolute error. Qualitatively, day period cloud fraction is more accurate than night period.