DQRID : D980529.7
Start DateStart TimeEnd DateEnd Time
04/28/1998195804/28/19982031
more
Subject:
SGP/EBBR/E8 - Six Month Checks
DataStreams:sgp30ebbrE8.b1, sgp15ebbrE8.b1, sgp5ebbrE8.b1
Description:
During EBBR 6 month checks (formally called 3 month checks) the Automatic 
Exchange Mechanism is disabled (reflected by home signals near zero) so that
the two aspirator units can be placed at the same height.  The measurements
during these periods do not produce correct outputs of bowen ratio (bowen), 
sensible heat flux (h), or latent heat flux (e), nor do the air temperature
and relative humidity measurements indicate correct gradients.  Checks 
performed just before or after the AEM is disabled also lead to some 
incorrect data.  Incorrect 5, 15 minute and half hour data occurs for the 
period above.
Suggestions: 
Measurements:sgp5ebbrE8.b1:
  • Top T/RH sensor temperature(temp_trh_top)
  • Bottom air temperature(temp_air_bottom)
  • Bottom relative humidity (fractional)(rh_bottom_fraction)
  • Bottom T/RH sensor temperature(temp_trh_bottom)
  • Bottom vapor pressure(vapor_pressure_bottom)
  • Top relative humidity (fractional)(rh_top_fraction)
  • Top vapor pressure(vapor_pressure_top)
  • Top air temperature(temp_air_top)
more
sgp15ebbrE8.b1:
  • Right air temperature(temp_air_right)
  • Left air temperature(temp_air_left)
  • Left T/RH sensor temperature (resistance ratio)(temp_trh_left_rr)
  • Right relative humidity (mV)(rh_right_mv)
  • Left relative humidity (mV)(rh_left_mv)
  • Right T/RH sensor temperature (resistance ratio)(temp_trh_right_rr)
more
sgp30ebbrE8.b1:
  • Bottom vapor pressure(vapor_pressure_bottom)
  • Surface latent heat flux(latent_heat_flux)
  • Bottom air temperature(temp_air_bottom)
  • Bottom T/RH sensor temperature(temp_trh_bottom)
  • Bottom relative humidity (fractional)(rh_bottom_fraction)
  • Surface sensible heat flux(sensible_heat_flux)
  • Top relative humidity (fractional)(rh_top_fraction)
  • Top vapor pressure(vapor_pressure_top)
  • Bowen ratio(bowen_ratio)
  • Top T/RH sensor temperature(temp_trh_top)
  • Top air temperature(temp_air_top)
more

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