D Q R Report

DQRID : D020717.35

Start Date	Start Time	End Date	End Time
02/16/2002	1945	02/17/2002	0001
01/09/2002	1545	01/12/2002	0001
02/20/2002	0815	02/20/2002	1831
04/21/2002	2000	05/29/2002	1831
02/28/2002	1030	03/06/2002	1901
02/08/2002	0845	02/08/2002	2031
02/08/2002	2145	02/14/2002	2001
12/17/2001	1230	01/09/2002	1531
02/14/2002	2015	02/16/2002	1531
01/12/2002	0515	01/15/2002	0031
02/17/2002	0415	02/20/2002	0531

Subject:	SGP/EBBR/E22 - AEM Hung or High Home Signals
DataStreams:	sgp30ebbrE22.b1, sgp5ebbrE22.b1, sgp15ebbrE22.b1
Description:	The automatic exchange mechanism hung some times and continued to switch at other times, although with high home signal values. If home signal values are not in the proper ranges, the gradient calculation is not performed properly by the CR10 program. Affected flux measurements cannot be recalculated.
Suggestions:
Measurements:	sgp15ebbrE22.b1: Right air temperature(temp_air_right) Left air temperature(temp_air_left) more sgp5ebbrE22.b1: Bottom T/RH sensor temperature(temp_trh_bottom) Bottom relative humidity (fractional)(rh_bottom_fraction) Top vapor pressure(vapor_pressure_top) 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) Top T/RH sensor temperature(temp_trh_top) more sgp30ebbrE22.b1: Bottom T/RH sensor temperature(temp_trh_bottom) Top relative humidity (fractional)(rh_top_fraction) Top air temperature(temp_air_top) Bottom relative humidity (fractional)(rh_bottom_fraction) Surface latent heat flux(latent_heat_flux) Top vapor pressure(vapor_pressure_top) Top T/RH sensor temperature(temp_trh_top) Bottom air temperature(temp_air_bottom) Bowen ratio(bowen_ratio) Surface sensible heat flux(sensible_heat_flux) Bottom vapor pressure(vapor_pressure_bottom) more