Mean relative differences (RD) with standard deviation (in parentheses) expressed in percent and root mean squared error (RMSE) of hourly GHI for all stations and monthly periods, for clear-sky and all-sky conditions.
Mean relative differences (RD) with standard deviation (in parentheses) expressedin percent and root mean squared error (RMSE) of hourly GHI for all stations andmonthly periods, for clear-sky and all-sky conditions.