DQRID : D971021.1
Start DateStart TimeEnd DateEnd Time
04/16/1997153304/16/19971625
more
Subject:
SGP/EBBR/E7 - EBBR Biannual Checks
DataStreams:sgp15ebbrE7.b1, sgp5ebbrE7.b1, sgp30ebbrE7.b1
Description:
During EBBR 6-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:sgp5ebbrE7.b1:
  • Top vapor pressure(vapor_pressure_top)
  • Bottom air temperature(temp_air_bottom)
  • Top T/RH sensor temperature(temp_trh_top)
  • Bottom T/RH sensor temperature(temp_trh_bottom)
  • Top air temperature(temp_air_top)
  • Bottom vapor pressure(vapor_pressure_bottom)
  • Bottom relative humidity (fractional)(rh_bottom_fraction)
  • Top relative humidity (fractional)(rh_top_fraction)
more
sgp15ebbrE7.b1:
  • Left relative humidity (mV)(rh_left_mv)
  • Right relative humidity (mV)(rh_right_mv)
  • Right T/RH sensor temperature (resistance ratio)(temp_trh_right_rr)
  • Left air temperature(temp_air_left)
  • Left T/RH sensor temperature (resistance ratio)(temp_trh_left_rr)
  • Right air temperature(temp_air_right)
more
sgp30ebbrE7.b1:
  • Top vapor pressure(vapor_pressure_top)
  • Top T/RH sensor temperature(temp_trh_top)
  • Bottom air temperature(temp_air_bottom)
  • Bowen ratio(bowen_ratio)
  • Top air temperature(temp_air_top)
  • Bottom vapor pressure(vapor_pressure_bottom)
  • Bottom T/RH sensor temperature(temp_trh_bottom)
  • Surface sensible heat flux(sensible_heat_flux)
  • Surface latent heat flux(latent_heat_flux)
  • Bottom relative humidity (fractional)(rh_bottom_fraction)
  • Top relative humidity (fractional)(rh_top_fraction)
more

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