NASA Langley ARM October 1995 IOP Data File Revision History

ARM Southern Great Plains (SGP) data:

• The data were reprocessed on 22 April 1997. The visible calibration was updated using intercalibration with NOAA-14 AVHRR. The navigation and clear-sky albedos were slightly improved so that minor changes in clear and cloud properties may have occurred. A slightly different narrowband-broadband calibration based on a single equation derived from October 1986 ERBS and GOES-6 data was applied to compute shortwave albedos. These albedos were validated using ARM/UAV high-altitude broadband flux measurements from the Egrett. The LW fluxes were derived with an October 1986 GOES-6/ERBS correlation (no change).
• The data were reprocessed with a new visible calibration on 14 January 1997.
• The first official version of ARM SGP October 1995 IOP cloud product data was made available on this server 13 February 1996.

ARM Central Facility (CF) data:

• The data were reprocessed on 22 April 1997. Please see the corresponding explanation for the SGP data above.
• The data were reprocessed with a new visible calibration on 14 January 1997.
• The first official version of ARM CF October 1995 IOP cloud product data was made available on this server 13 February 1996.