Digging the METEOSAT Treasure—3 Decades of Solar Surface Radiation

摘要: Solar surface radiation data of high quality is essential for the appropriate monitoring and analysis Earth's budget climate system. Further, they are crucial efficient planning operation solar energy systems. However, well maintained measurements rare in many regions world over oceans. There, satellite derived information exclusive observational source. This emphasizes important role based data. Within this scope, new CM-SAF SARAH (Solar surfAce RAdiation Heliosat) record discussed as retrieval method used. The retrieved with sophisticated SPECMAGIC method, which on radiative transfer modeling. resulting irradiance, direct irradiance (horizontal normal) clear sky covering 3 decades. set validated Baseline Surface Radiation Network (BSRN) Global Energy Balance Archive (GEBA). Comparison BSRN performed order to estimate accuracy precision monthly daily means irradiance. shows a bias 1.3 \(W/m^2\) mean absolute (MAB) 5.5 means. For MAB 1 8.2 respectively. Thus, uncertainty range ground measurements. In evaluate trend time series compared GEBA. It has been found that enables trends an \(W/m^2/dec\); remarkable good result record. also its legacy version, MVIRI Overall, significant higher homogeneity than version. With temporal spatial resolution suited regional applications.