Subject:  SGP/EBBR/E18  Pressure Low 
DataStreams:  sgp5ebbrE18.b1, sgp30ebbrE18.b1

Description:  Pressure readings suddenly dropped to unrealistic levels.
Sensible Heat Flux was underestimated and Latent Heat Flux
was overestimated because of this problem. 
Suggestions:  Use the pressure readings from the SMOS at E21 (very near E18) to correct
the sensible and latent heat fluxes, as follows:
Corrected Sensible Heat Flux = SMOS/EBBR pressure * Sensible Heat Flux
Corrected Latent Heat Flux = EBBR/SMOS pressure * Latent Heat Flux
These are approximations with about 1% error. 
Measurements:  sgp30ebbrE18.b1:  Bowen ratio(bowen_ratio)
 Surface latent heat flux(latent_heat_flux)
 Surface sensible heat flux(sensible_heat_flux)
 Atmospheric pressure(atmos_pressure)
more
sgp5ebbrE18.b1:  Atmospheric pressure(atmos_pressure)
more
