作者: Claire Thomas , Laurent Saboret , Etienne Wey , Philippe Blanc , Lucien Wald
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摘要: Abstract. Meteosat Second Generation (MSG) satellite images acquired every 15 min during daytime are currently processed by the Heliosat-2 method night to generate HelioClim-3 (HC3) database of surface solar irradiation for day before. A new service is proposed based on version 4 HC3 (HC3v4) that offers real-time and forecasted horizons up a few hours. The local persistence clear-sky index. Its results were compared coincident high quality global irradiations measured in fourteen stations belonging Baseline Surface Radiation Network (BSRN). For forecasts temporal horizon ahead, relative bias root mean square error (RMSE) range respectively from 0 2 %, 20 23 % most stations. correlation coefficient ranges 0.94 0.95. These performances similar HC3v4 same Expectedly, degrades as increases. 1 h ahead irradiation, bias, −3 1 %, 30 37 %, 0.90 0.91.