SBS/GNDRAD/M1 - IRT bias

The IRT was indicating lower surface temperatures than the PIR. It is unknown how the 
problem was corrected, but there was a concurrent increase in logger voltage of 0.02 V.

• Effective Surface (Skin) Temperature(sfc_ir_temp)
• Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
• Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)

SBS/GNDRAD/M1 - Upwelling Shortwave data incorrect

Upwelling shortwave signal is flat (0 W/m^2) from 1532 UTC on 2010-09-24 through 1636 UTC 
on 2010-09-28 when it jumps to 600W/m^2. 

Value jumps between 800 W/m^2 and -9999 (missing) until 1833 UTC 2010-09-28.

Signal is adjusted downward ~250 W/m^2 at 2208 UTC on 2010-09-28. 

Data during the specified period are incorrect and cannot be corrected.

• inst_up_short_hemisp

• Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
• up_short_hemisp_std
• Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)

SBS/GNDRAD/M1 - Upwelling longwave initial problems

The Upwelling Longwave signal was not present in the datastreams until 1746 UTC on 
9/23/2010. The signal was then very noisy and frequently above empirical limits (575 W/m^2) 
between 1700 and 2200 UTC until 2208 on 9/28/2010 when it was adjusted upward about 50 W/m^2.

• inst_up_long_hemisp_case_resist
• inst_up_long_hemisp_dome_resist
• inst_up_long_hemisp_tp

• Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
• Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
• Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
• inst_up_long_hemisp_dome_temp
• up_long_hemisp_std
• inst_up_long_hemisp_tp
• inst_up_long_hemisp_case_temp

SBS/GNDRAD/M1 - Noise in upwelling LW/SW signals

During these periods the Upwelling Longwave and Upwelling Shortwave signals experience 
wild swings between large negative and large positive values, sometimes going missing 
(-9999) for several hours at a time.

• inst_up_long_hemisp_case_resist
• inst_up_long_hemisp_dome_resist
• inst_up_long_hemisp_tp
• inst_up_short_hemisp

• Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
• Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
• Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
• up_short_hemisp_std
• Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
• inst_up_long_hemisp_tp
• inst_up_long_hemisp_dome_temp
• Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
• Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
• up_long_hemisp_std
• inst_up_long_hemisp_case_temp