DQRID : D020905.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/19/1997000012/24/19981845Suspect
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Subject:
SGP/IRT10m/C1 - Reprocess: IRT insufficiently insulated
DataStreams:sgpirt10mC1.b1
Description:
The upwelling IRT on the 10m tower was insufficiently insulated to maintain an internal 
reference temperature above 0 degrees C. Measurements of surface temperature were 
over-estimated when instrument was below freezing.

Data will be reprocessed, but users can correct data using the following correction 
factor:

If T_reference < -5°C, then

  IRT_corrected = (IRT_original - 32.993K)/0.87238

where T_reference can be estimated with ambient temperature (e.g.
inst_up_long_hemisp_dome_temp or inst_up_long_dome_temp from SGP.E13 SIRS)
Suggestions: 
Measurements:sgpirt10mC1.b1:
  • sfc_ir_temp_min
  • sfc_ir_temp_std
  • sfc_ir_temp
  • sfc_ir_temp_max
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