DQRID : D031103.1
Start DateStart TimeEnd DateEnd Time
10/30/2003154511/13/20031545
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Subject:
SGP/EBBR/E26 - AEM Home Signals Incorrect, Surface Fluxes Incorrect
DataStreams:sgp30ebbrE26.b1, sgp5ebbrE26.b1, sgp15ebbrE26.b1
Description:
During a preventative maintenance visit to perform the 6-month
calibrations, the home15 and home30 outputs began reading the
same as one another.  A fuse replacement and lubrication of the 
AEM sprockets on 11/13 corrected the problem.

During the interval specified, the home15, home30, and sensible
and latent heat fluxes are incorrect.
Suggestions: 
There is no work around to this problem.
Measurements:sgp5ebbrE26.b1:
  • Bottom vapor pressure(vapor_pressure_bottom)
  • Top vapor pressure(vapor_pressure_top)
  • Bottom T/RH sensor temperature(temp_trh_bottom)
  • AEM position indicator(home_signal)
  • Top relative humidity (fractional)(rh_top_fraction)
  • Top T/RH sensor temperature(temp_trh_top)
  • Bottom air temperature(temp_air_bottom)
  • Bottom relative humidity (fractional)(rh_bottom_fraction)
  • Top air temperature(temp_air_top)
more
sgp15ebbrE26.b1:
  • Right T/RH sensor temperature (resistance ratio)(temp_trh_right_rr)
  • Right air temperature(temp_air_right)
  • Left air temperature(temp_air_left)
  • Left relative humidity (mV)(rh_left_mv)
  • Left T/RH sensor temperature (resistance ratio)(temp_trh_left_rr)
  • Right relative humidity (mV)(rh_right_mv)
more
sgp30ebbrE26.b1:
  • Bowen ratio(bowen_ratio)
  • AEM position indicator 0 to 15 mins(home_signal_15)
  • Bottom relative humidity (fractional)(rh_bottom_fraction)
  • AEM position indicator 15 to 30 mins(home_signal_30)
  • Top T/RH sensor temperature(temp_trh_top)
  • Bottom T/RH sensor temperature(temp_trh_bottom)
  • Top relative humidity (fractional)(rh_top_fraction)
  • Top air temperature(temp_air_top)
  • Surface latent heat flux(latent_heat_flux)
  • Bottom air temperature(temp_air_bottom)
  • Top vapor pressure(vapor_pressure_top)
  • Surface sensible heat flux(sensible_heat_flux)
  • Bottom vapor pressure(vapor_pressure_bottom)
more

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