*3.2. Locally and Remotely Derived Variables for Clustering*

Variables that were obtained on the basis of the meteorological parameters of the forecast site are called locally derived variables, while variables acquired depending upon the neighboring forecasting sites are called remotely derived variables. Derived variables were obtained following [23].

Neighboring solar stations relative to the forecast site were selected as follows:


• Three solar stations with the best similarity score were selected and used for clustering. Table 3 lists all locally and remotely derived variables.
