NSA/GNDRAD/C2 - Incorrect calibration coefficients applied to upwelling(Gndrad)PIR

An insitu test comparing the Gndrad PIR and the Gndrad IRT at the NSA was performed from 6 
Jan 2005 to 12 Jan 2005.  The radiometer mentor requested the Eppley single calibration 
coefficient for the PIR replace the 4 coefficients method developed by NREL.  The Grndrad 
PIR compared closer to the Gndrad IRT during this period. However, the radiometer mentor 
believes the 4 coefficient PIR irradiance measurements remains superior to the single 
coefficient Eppley PIR measurement method.  Further questions should be directed to the 
radiometer instrument mentor.

Disregard this data.

• Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
• 10 meter Upwelling Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
• PIR1 minimum(pir1_min)
• Upwelling longwave hemispheric irradiance, pyrgeometer, maxima(up_long_hemisp_max)
• Upwelling (10 meter) Longwave Hemispheric Irradiance, Ventilated Pyrgeometer,
  Standard Deviation(up_long_hemisp_std)
• PIR1 unshaded standard deviation(pir1_sd)
• PIR1 unshaded maximum(pir1_max)
• PIR1 mean(pir1_mean)

• (Raw data stream - documentation not supported)