DQRID : D020129.4
Start DateStart TimeEnd DateEnd Time
10/09/2001224510/12/20011301
more
Subject:
SGP EBBR E13 - E13 EBBR AEM Home 30 Offset or AEM in Mid Position
DataStreams:sgp30ebbrE13.b1, sgp5ebbrE13.b1, sgp15ebbrE13.b1
Description:
The AEM stopped before reaching the end of it's travel,
causing the home signals to be between 0 and 3 during 
part of this period.

The AEM home30 signal is offset by approximately 25 
during part of this period; it appears that the electronics 
of the AEM is adding the home15 and home30 voltages 
together when the AEM is in the home30 position.

All gradient data, sensible heat flux, latent heat flux,
and the Bowen ratio are incorrect during these conditions.
Suggestions: 
Correct heat fluxes cannot be recalculated for this period.

Flag the data with this comment.
Measurements:sgp15ebbrE13.b1:
  • Right air temperature(temp_air_right)
  • Left air temperature(temp_air_left)
  • Right T/RH sensor temperature (resistance ratio)(temp_trh_right_rr)
  • Left T/RH sensor temperature (resistance ratio)(temp_trh_left_rr)
  • Left relative humidity (mV)(rh_left_mv)
  • Right relative humidity (mV)(rh_right_mv)
more
sgp5ebbrE13.b1:
  • Bottom air temperature(temp_air_bottom)
  • Top relative humidity (fractional)(rh_top_fraction)
  • Top T/RH sensor temperature(temp_trh_top)
  • Top vapor pressure(vapor_pressure_top)
  • Bottom vapor pressure(vapor_pressure_bottom)
  • Top air temperature(temp_air_top)
  • Bottom T/RH sensor temperature(temp_trh_bottom)
  • Bottom relative humidity (fractional)(rh_bottom_fraction)
more
sgp30ebbrE13.b1:
  • Bowen ratio(bowen_ratio)
  • Top T/RH sensor temperature(temp_trh_top)
  • Surface sensible heat flux(sensible_heat_flux)
  • Top relative humidity (fractional)(rh_top_fraction)
  • Bottom air temperature(temp_air_bottom)
  • Top air temperature(temp_air_top)
  • Bottom relative humidity (fractional)(rh_bottom_fraction)
  • Surface latent heat flux(latent_heat_flux)
  • Bottom vapor pressure(vapor_pressure_bottom)
  • Bottom T/RH sensor temperature(temp_trh_bottom)
  • Top vapor pressure(vapor_pressure_top)
more

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