Ener Rusen, Selmin; Hammer, Annette; Akinoglu, Bulent G. - In: Energy 58 (2013) C, pp. 417-425
In this work, the current version of the satellite-based HELIOSAT method and ground-based linear Ångström–Prescott type relations are used in combination. The first approach is based on the use of a correlation between daily bright sunshine hours (s) and cloud index (n). In the second...
