Abstract:This work analyses the long‐term temporal variability of the annual and seasonal series of reconstructed global solar radiation for both all‐sky and cloud‐free conditions in Badajoz (Spain) over the 1929–2015 period. Specifically, daily values of global horizontal irradiation (GHI) for all‐sky cases are derived from a semiempirical method based on the relationship between the cloud modification factor and sunshine duration records. Additionally, cloud‐free situations are selected using cloud cover (CC) informa… Show more
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