Dear All, Which variable should I extract from the output files if I want to study surface solar radiation? Many thanks Claudia Pizzigalli CNR-ISAC Istituto di Scienze dell'Atmosfera e del Clima, sede di Lecce Str. Prov. Lecce-Monteroni km 1,200 73100 Lecce, Italy Phone: +39 0832 298816; Fax: +39 0832 298716