DQRID : D950626.11
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/18/1995013004/18/19951620Incorrect
more
Subject:
SGP/EBBR/E9 - Stopped Ventilation Fan
DataStreams:sgp5ebbrE9.b1, sgp30ebbrE9.b1, sgp15ebbrE9.b1
Description:
On April 18, 1995, a site operator discovered the right aspirator ventilation
fan of the EBBR to be stopped.  Inspection of the data indicates that this
condition began early in the GMT day.  Interpretation of the start time of
the condition is made more difficult by a slight bias low in absolute
temperature in comparison to the left temperature probe.  Lack of ventilation
of the temperature and relative humidity sensors attached to the AEM results
in incorrect measurements of air temperature and relative humidity by the
right aspirator probes, and therefore all quantities calculated from them,
including sensible and latent heat fluxes, are incorrect as well.
The quantities that are incorrect for the period above are:

5 minute:  tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, and vp_bot

15 minute: rr_thum_r, mv_hum_r, tair_r

30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, vp_bot, bowen, e, h
Suggestions: 
Measurements:sgp30ebbrE9.b1:
  • vapor_pressure_top
  • temp_air_bottom
  • temp_trh_top
  • latent_heat_flux
  • temp_air_top
  • rh_top_fraction
  • bowen_ratio
  • rh_bottom_fraction
  • sensible_heat_flux
  • vapor_pressure_bottom
  • temp_trh_bottom
more
sgp15ebbrE9.b1:
  • temp_air_right
  • rh_right_mv
  • temp_trh_right_rr
more
sgp5ebbrE9.b1:
  • vapor_pressure_top
  • temp_trh_top
  • rh_bottom_fraction
  • temp_air_top
  • temp_air_bottom
  • rh_top_fraction
  • vapor_pressure_bottom
  • temp_trh_bottom
more

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