DQRID : D040130.1
Start DateStart TimeEnd DateEnd Time
11/21/2003163601/27/20042208
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Subject:
SGP/AOS/C1 - Ozone Instrument removed for repair
DataStreams:sgpaosauxC1.a0, sgpaosC1.a0
Description:
The ozone instrument was removed for calibration on 2003 11/21.  It was shipped to Boulder 
and was cleaned and calibrated.  It was sent back to SGP on 2003 12/02, but was damaged 
in transit by FedEx.  The instrument was reinstalled on 2003 12/03 but was found to be 
defective.  Large spikes were observed in the data.  Afetr a few days the instrument was 
removed and shipped to a vendor for repair.  The ozone monitor was returned to service 
after repair at 2004 01/27 (2208 GMT).
Suggestions: 
Do not use ozone data from this period.
Measurements:sgpaosauxC1.a0:
  • Ozone sample pressure(O3_Press)
  • Ozone sample frequency(O3_Samp)
  • Ozone sample temperature(O3_Temp)
  • Ozone line temperature set point(O3_SetPt)
  • Ozone mode(O3_Mode)
  • Ozone zero concentration(O3_Zro)
  • Ozone span concentration(O3_Spn)
  • Ozone offset value(O3_Offset)
  • Ozone line temp. from thermocouple attached to heater(O3_LinHeater)
  • unknown(O3_Cont)
  • Ozone span value(O3_Span)
  • Ozone line sample temperature (omega temp. sensor)(O3_LinTemp)
more
sgpaosC1.a0:
  • Ozone concentration(Ozone)
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