DQRID : D980616.1
Start DateStart TimeEnd DateEnd Time
06/01/1998130006/02/19981930
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Subject:
SGP/SMOS/E15 - Incorrect SMOS temperatures at E15
DataStreams:sgpsmosE15.01, sgp1smosE15.00, sgp1440smosE15.a0, sgp30smosE15.a1, sgp1smosE15.a0
Description:
The temperatures reported by the SMOS at E15 started drifting high at about 
1300 GMT on 1 JUN 1998 until reporting 72.6 C, and then the sensor failed.  
It started reporting correctly again at about 1930 GMT on 2 JUN 1998.  The 
humidity data reported during this period is either questionable or missing.
The cause of the drift and subsequent failure as well as the cause of recovery
are unknown.  The techs reported no problems during the bi-weekly check on
2 JUN 1998 at 1850 GMT.
Suggestions: 
Flag all E15 temperature and humidity data taken during this period as incorrect.
Measurements:sgp1440smosE15.a0:
  • Time of Relative Humidity(time_min_rh)
  • Daily minimum vapor pressure(min_vap_pres)
  • Time of maximum vapor pressure(time_max_vap_pres)
  • Minimum Relative Humidity(min_rh)
  • Daily maximum relative humidity(max_rh)
  • Time of maximum relative humidity(time_max_rh)
  • Time of Minimum Temperature(time_min_temp)
  • Maximum Temperature(max_temp)
  • Maximum Vapor Pressure(max_vap_pres)
  • Time of minimum vapor pressure(time_min_vap_pres)
  • Time of maximum air temperature(time_max_temp)
  • Daily minimum air temperature(min_temp)
more
sgp30smosE15.a1:
  • Standard deviation of vapor pressure(sd_vap_pres)
  • Standard Deviation of Air Temperature(sd_temp)
  • Relative Humidity (hybrid-b grid)(rh)
  • Environmental Temperature (hybrid-b grid)(temp)
  • Standard Deviation of Relative Humidity(sd_rh)
  • Vapor Pressure (kiloPascals)(vap_pres)
more
sgp1smosE15.a0:
  • Vapor Pressure (kiloPascals)(vap_pres)
  • Relative Humidity (hybrid-b grid)(rh)
  • Environmental Temperature (hybrid-b grid)(temp)
more
sgp1smosE15.00:
  • (Raw data stream - documentation not supported)
more
sgpsmosE15.01:
  • (Raw data stream - documentation not supported)
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