DQRs for Session: 131953 User:anneliese1Completed: 12-02-2010

Data Quality Reports for Session: 131953 User: anneliese1 Completed: 12/02/2010

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D060510.1	SGP/CO2FLX/C1 - Met stand was moved	sgp30co2flx4mmetC1.b1
D070416.4	SGP/CO2FLX/C1 - downwelling longwave hemispheric irradiance incorrect	sgp30co2flx4mmetC1.b1
D070803.2	SGP/CO2FLX/C1 - Disturbance around site	sgp30co2flx4mC1.b1, sgp30co2flx25mC1.b1, sgp30co2flx60mC1.b1, sgp30co2flx4mmetC1.b1
D070918.3	SGP/CO2FLX/C1 - Farm operation	sgp30co2flx4mmetC1.b1

DQRID : D060510.1

Start Date	Start Time	End Date	End Time
04/11/2006	1530	04/19/2006	1500

Subject:	SGP/CO2FLX/C1 - Met stand was moved
DataStreams:	sgp30co2flx4mmetC1.b1
Description:	Ameriflux program (Hank Loescher from Oregon state university) visits the site to intercompare his instruments with our 4m flux system. The met stand was moved by 30 feet and consequently: 1. Soil moisture sensors were disconnected, 2. Soil temperature sensors were disconnected, 3. Soil heat plates were disconnected, 4. The true direction of the anemometer boom was 230 degrees instead of the regular 270 degrees.
Measurements:	sgp30co2flx4mmetC1.b1: Average of four upper soil moisture sensors(mean_m_soil_upper) Average of four lower soil moisture sensors(mean_m_soil_lower) Average of two upper soil temperature sensors(mean_t_soil_upper) Unit Vector Wind Direction(wdir) Average of two middle soil temperature sensors(mean_t_soil_middle) Average of two lower soil temperature sensors(mean_t_soil_lower) Average of four soil heat flux probes(mean_g_soil)

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DQRID : D070416.4

Start Date	Start Time	End Date	End Time
04/28/2004	0000	04/02/2007	1930

Subject:	SGP/CO2FLX/C1 - downwelling longwave hemispheric irradiance incorrect
DataStreams:	sgp30co2flx4mmetC1.b1
Description:	Downwelling longwave radiation measurements (variable "r_down_long_hemisp") are bad due to a wiring issue. Users should not use the downwelling longwave hemispheric irradiance during this period. The downwelling shortwave and longwave radiation at CF is also available from the Broadband Radiometer Station (BRS).
Measurements:	sgp30co2flx4mmetC1.b1: Downwelling longwave hemispheric irradiance; t_rad corrected(r_down_long_hemisp)

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DQRID : D070803.2

Start Date	Start Time	End Date	End Time
07/24/2007	1300	07/26/2007	2359

Subject:	SGP/CO2FLX/C1 - Disturbance around site
DataStreams:	sgp30co2flx4mC1.b1, sgp30co2flx25mC1.b1, sgp30co2flx60mC1.b1, sgp30co2flx4mmetC1.b1
Description:	A bulldozer used to excavate the SGP Tower anchors was right around (within 10 feet) our systems.
Measurements:	sgp30co2flx4mC1.b1: WPL corrected CO2 flux(fc_corr) Mean CO2 density(mean_c) sgp30co2flx4mmetC1.b1: WPL corrected CO2 flux(fc_corr) Mean CO2 density(mean_c) sgp30co2flx60mC1.b1: Mean CO2 density(mean_c) WPL corrected CO2 flux(fc_corr) sgp30co2flx25mC1.b1: WPL corrected CO2 flux(fc_corr) Mean CO2 density(mean_c)

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DQRID : D070918.3

Start Date	Start Time	End Date	End Time
08/22/2007	1830	09/07/2007	1800

Subject:	SGP/CO2FLX/C1 - Farm operation
DataStreams:	sgp30co2flx4mmetC1.b1
Description:	Soil temperature, soil moisture, soil heat flux and upwelling surface radiation (long, short, and PAR) measurements were not valid from 20070822 to 20070907 due to farm operations.
Measurements:	sgp30co2flx4mmetC1.b1: stderr_mean_t_soil_lower Average of four upper soil moisture sensors(mean_m_soil_upper) stderr_mean_m_soil_lower Upwelling shortwave hemispheric irradiance; t_rad corrected(r_up_short_hemisp) stderr_mean_m_soil_upper stderr_mean_t_soil_middle Average of two lower soil temperature sensors(mean_t_soil_lower) Average of four soil heat flux probes(mean_g_soil) stderr_mean_t_soil_upper ppfd_up Average of four lower soil moisture sensors(mean_m_soil_lower) Upwelling longwave hemispheric irradiance; t_rad corrected(r_up_long_hemisp) Average of two upper soil temperature sensors(mean_t_soil_upper) stderr_mean_g_soil Average of two middle soil temperature sensors(mean_t_soil_middle)

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