SGP/SIRS/E27 - Instrument problem, Shadowband Misalignment

Downwelling and Upwelling longwave values are somewhat noisy due to noisy PIR (pygeometer) 
case and dome thermistor measurements on both the upwelling and downwelling PIRs. This 
problem dates back to the beginning of the SIRS E27 data stream.

User discretion.  Noise appears to be random with no offset but no analysis has been 

done to verify.

• inst_down_long_shaded_case_resist
• inst_down_long_shaded_dome_resist
• inst_up_long_dome_resist
• inst_up_long_case_resist

• down_long_hemisp_shaded_std
• down_long_hemisp_shaded_max
• inst_up_long_case_temp
• up_long_hemisp_std
• up_long_hemisp_max
• inst_up_long_dome_temp
• inst_down_long_shaded_dome_temp
• down_long_hemisp_shaded
• up_long_hemisp_min
• inst_down_long_shaded_case_temp
• up_long_hemisp
• down_long_hemisp_shaded_min

• Raw data stream - documentation not supported