Hourly irradiation measured at Aswan station, Egypt (2004-2010)

Irradiation data has been filtered to remove suspicious data. Each measurement is flagged (columns 6, 8, 10): "0": passed - Measurement has successfully passed the quality control. "1": failed - Measurement is outside the range of expected extreme values. "2": failed - Measurement is greater than rarely observed values. "3": failed - Measurement is greater than rarely observed values and outside the range of expected extreme values. "4": suspicious - Though measurement passed the tests, further visual screening casts doubts on its validity. "5": night values.