DQRID : D980416.1
Start DateStart TimeEnd DateEnd Time
10/31/1997160210/31/19971640
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Subject:
SGP/EBBR/E2 - EBBR E2 3 Month Check
DataStreams:sgp5ebbrE2.b1, sgp15ebbrE2.b1, sgp30ebbrE2.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 the period indicated.
Suggestions: 
Measurements:sgp30ebbrE2.b1:
  • Top relative humidity (fractional)(rh_top_fraction)
  • Bottom relative humidity (fractional)(rh_bottom_fraction)
  • Bottom air temperature(temp_air_bottom)
  • Top vapor pressure(vapor_pressure_top)
  • Surface sensible heat flux(sensible_heat_flux)
  • Bowen ratio(bowen_ratio)
  • Bottom T/RH sensor temperature(temp_trh_bottom)
  • Bottom vapor pressure(vapor_pressure_bottom)
  • Surface latent heat flux(latent_heat_flux)
  • Top air temperature(temp_air_top)
  • Top T/RH sensor temperature(temp_trh_top)
more
sgp5ebbrE2.b1:
  • Top T/RH sensor temperature(temp_trh_top)
  • Bottom vapor pressure(vapor_pressure_bottom)
  • Top relative humidity (fractional)(rh_top_fraction)
  • Top air temperature(temp_air_top)
  • Bottom air temperature(temp_air_bottom)
  • Bottom relative humidity (fractional)(rh_bottom_fraction)
  • Top vapor pressure(vapor_pressure_top)
  • Bottom T/RH sensor temperature(temp_trh_bottom)
more
sgp15ebbrE2.b1:
  • Right relative humidity (mV)(rh_right_mv)
  • Right air temperature(temp_air_right)
  • Right T/RH sensor temperature (resistance ratio)(temp_trh_right_rr)
  • Left relative humidity (mV)(rh_left_mv)
  • Left T/RH sensor temperature (resistance ratio)(temp_trh_left_rr)
  • Left air temperature(temp_air_left)
more

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