DQRID : D970716.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/19/1997013007/08/19971915Incorrect
more
Subject:
SGP/EBBR/E8 - AEM Inoperative
DataStreams:sgp30ebbrE8.b1
Description:
Beginning on 19 June 1997, the set screw holding one of the AEM sprockets 
to the drive motor became stripped, preventing the aspirator units from 
exchanging every time.  The problem was intermittent until 24 June when 
site operations personnel determined that a new sprocket (therefore a 
replacement AEM) was needed.  The AEM was therefore left in the position 
such that the right aspirator was in the bottom position continuously, with 
home signals indicating values near -1.  The AEM was replaced on 8 July 
1997.

For most of the time period above, home signals, bowen, e, h, and all 
thermocouple and probe tmperatures, probe relative humidities, and vapor 
pressures do not reflect a switching AEM.  However, temperatures, RH and 
vapor pressures are accurate for their height.  Obviously, bowen, e, and h 
are incorrect.
Suggestions: 
Measurements:sgp30ebbrE8.b1:
  • latent_heat_flux
  • bowen_ratio
  • sensible_heat_flux
more

Close this window