DQRID : D971021.2
Start DateStart TimeEnd DateEnd Time
04/29/1997200304/29/19972030
more
Subject:
SGP/EBBR/E8 - EBBR Biannual Checks
DataStreams:sgp30ebbrE8.b1, sgp15ebbrE8.b1, sgp5ebbrE8.b1
Description:
During EBBR 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 before or after the 
AEM is disabled also lead to some incorrect data.  Incorrect 5, 15 minute and 
half hour data occurs for periods indicated.
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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