NASA Remote Sensing Validation Data: Gizan, Saudi Arabia
	Site Coordinates  Latitude:   16.90 °N  Longitude:   42.58 °E  Elevation:   7  meters  Time Zone:   +3

• Calibration History

• Format of the Data Files

• Quality Assessment with SERI_QC

• Flagging Convention for SERI_QC

Data Available:
1998 January February March April May June July August September October November December	1999 January February March April May June July August September October November December	2000 January February March April May June July August September October November December	2001 * January February March April May June July August September October November December
2002 * January Februuary March April May June July August September October November December	2003 January

* Note: Data for Gizan from August 2001 through May 2002 was reprocessed using updated calibration coefficients. The effect of the change was variable, depending on time of day and irradiance.The maximum change to the measurements occurs at midday, and is less than 7 W/M² (less than 0.7%.) Near sunrise and sunset, the change is typically less than 1 or 2 W/M² (up to about 2%.)