SGP/EBBR/E9 - Stopped Ventilation Fan

On April 18, 1995, a site operator discovered the right aspirator ventilation
fan of the EBBR to be stopped.  Inspection of the data indicates that this
condition began early in the GMT day.  Interpretation of the start time of
the condition is made more difficult by a slight bias low in absolute
temperature in comparison to the left temperature probe.  Lack of ventilation
of the temperature and relative humidity sensors attached to the AEM results
in incorrect measurements of air temperature and relative humidity by the
right aspirator probes, and therefore all quantities calculated from them,
including sensible and latent heat fluxes, are incorrect as well.
The quantities that are incorrect for the period above are:

5 minute:  tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, and vp_bot

15 minute: rr_thum_r, mv_hum_r, tair_r

30 minute: tair_top, tair_bot, thum_top, thum_bot, hum_top, hum_bot,
           vp_top, vp_bot, bowen, e, h

• Top vapor pressure(vapor_pressure_top)
• Bottom air temperature(temp_air_bottom)
• Top T/RH sensor temperature(temp_trh_top)
• Surface latent heat flux(latent_heat_flux)
• Top air temperature(temp_air_top)
• Top relative humidity (fractional)(rh_top_fraction)
• Bowen ratio(bowen_ratio)
• Bottom relative humidity (fractional)(rh_bottom_fraction)
• Surface sensible heat flux(sensible_heat_flux)
• Bottom vapor pressure(vapor_pressure_bottom)
• Bottom T/RH sensor temperature(temp_trh_bottom)

• Right air temperature(temp_air_right)
• Right relative humidity (mV)(rh_right_mv)
• Right T/RH sensor temperature (resistance ratio)(temp_trh_right_rr)

• Top vapor pressure(vapor_pressure_top)
• Top T/RH sensor temperature(temp_trh_top)
• Bottom relative humidity (fractional)(rh_bottom_fraction)
• Top air temperature(temp_air_top)
• Bottom air temperature(temp_air_bottom)
• Top relative humidity (fractional)(rh_top_fraction)
• Bottom vapor pressure(vapor_pressure_bottom)
• Bottom T/RH sensor temperature(temp_trh_bottom)