DQRs for Session: 179514 User:nazemin1Completed: 09-08-2016

Data Quality Reports for Session: 179514 User: nazemin1 Completed: 09/08/2016

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected	Data Quality Metric
D020716.18	SGP/EBBR/E26 - 6 Month Checks	sgp30ebbrE26.b1	Incorrect
D020717.37	SGP/EBBR/E26 - Measurements Zero	sgp30ebbrE26.b1	Incorrect
D020717.38	SGP/EBBR/E26 - Measurements Incorrect	sgp30ebbrE26.b1	Incorrect
D020717.39	SGP/EBBR/E26 - Multiplexer 2 Failure From High Temperature	sgp30ebbrE26.b1	Suspect
D021113.1	SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header	sgp30ebbrE26.b1	Does not affect quality
D021113.4	SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header	sgp30ebbrE26.b1	Does not affect quality
D030110.27	SGP/EBBR/E26 - Data Incorrect during 6 month checks	sgp30ebbrE26.b1	Incorrect
D030117.26	SGP/EBBR/E26 - Measurements zero following logger restart	sgp30ebbrE26.b1	Incorrect
D030117.27	SGP/EBBR/E26 - Multiplexer Problem	sgp30ebbrE26.b1	Incorrect
D030117.28	SGP/EBBR/E26 - Water in broken Net Radiometer Dome	sgp30ebbrE26.b1	Incorrect
D030117.29	SGP/EBBR/E26 - Battery Voltage Low	sgp30ebbrE26.b1	Incorrect
D030128.2	SGP/EBBR/E26 - AEM Hung	sgp30ebbrE26.b1	Incorrect
D030128.3	SGP/EBBR/E26 - Data zeros following logger restart	sgp30ebbrE26.b1	Incorrect
D030128.4	SGP/EBBR/E26 - Left Air Temperature Incorrect	sgp30ebbrE26.b1	Incorrect
D030711.6	SGP/EBBR/E26 -Right Air Temperature Incorrect	sgp30ebbrE26.b1	Incorrect
D050324.3	SGP/EBBR/E26 - Incorrect soil type coefficients used	sgp30ebbrE26.b1	Incorrect
D050719.15	SGP/EBBR/E26 - Improved EBBR CR10 Program	sgp30ebbrE26.b1	Does not affect quality

DQRID : D020716.18

Start Date	Start Time	End Date	End Time	Data Quality Metric
05/02/2002	1500	05/02/2002	1531	Incorrect

Subject:	SGP/EBBR/E26 - 6 Month Checks
DataStreams:	sgp30ebbrE26.b1
Description:	The indicated measurements were incorrect during the 6 month checks.
Measurements:	sgp30ebbrE26.b1: temp_air_bottom temp_trh_top vapor_pressure_bottom bowen_ratio rh_top_fraction rh_bottom_fraction Latent heat flux(latent_heat_flux) temp_air_top temp_trh_bottom vapor_pressure_top Sensible heat flux(sensible_heat_flux)

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DQRID : D020717.37

Start Date	Start Time	End Date	End Time	Data Quality Metric
05/30/2002	1500	05/30/2002	1501	Incorrect

Subject:	SGP/EBBR/E26 - Measurements Zero
DataStreams:	sgp30ebbrE26.b1
Description:	The measurements are often zero after a CR10 datalogger restart, as occurred here.
Measurements:	sgp30ebbrE26.b1: Average soil heat flow at the surface(surface_soil_heat_flux_avg) Net radiation(net_radiation) Wind speed vector mean(wspd_vec_mean) soil_heat_capacity_5 soil_heat_capacity_4 soil_heat_capacity_2 soil_heat_capacity_3 bowen_ratio rh_top_fraction soil_heat_capacity_1 Wind speed, lower, 1-min avg(wspd_arith_mean) home_signal_30 Latent heat flux(latent_heat_flux) Soil temperature mean 5(soil_temp_5) Soil temperature mean 4(soil_temp_4) soil_heat_flow_3 soil_heat_flow_2 Soil temperature mean 3(soil_temp_3) soil_heat_flow_1 Soil temperature mean 2(soil_temp_2) Soil temperature mean 1(soil_temp_1) soil_heat_flow_5 soil_heat_flow_4 vapor_pressure_top vapor_pressure_bottom corr_soil_heat_flow_4 corr_soil_heat_flow_3 corr_soil_heat_flow_2 corr_soil_heat_flow_1 temp_reference corr_soil_heat_flow_5 temp_air_bottom Wind direction vector mean(wdir_vec_mean) wdir_vec_std energy_storage_change_1 energy_storage_change_2 energy_storage_change_3 energy_storage_change_4 temp_air_top energy_storage_change_5 temp_trh_bottom soil_moisture_5 surface_soil_heat_flux_5 surface_soil_heat_flux_3 surface_soil_heat_flux_4 Atmospheric pressure(atmos_pressure) soil_moisture_1 soil_moisture_2 soil_moisture_3 soil_moisture_4 temp_trh_top rh_bottom_fraction home_signal_15 surface_soil_heat_flux_2 surface_soil_heat_flux_1 Sensible heat flux(sensible_heat_flux)

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DQRID : D020717.38

Start Date	Start Time	End Date	End Time	Data Quality Metric
05/30/2002	1530	05/30/2002	1531	Incorrect

Subject:	SGP/EBBR/E26 - Measurements Incorrect
DataStreams:	sgp30ebbrE26.b1
Description:	Change of energy storage (CES) measurements (calculated from the change of soil temperature with time) are sometimes incorrect after a CR10 program restart because the beginning measurement of the averaging period is zero. Average soil heat flow, sensible heat flux, and latent heat flux were affected and cannot be recalculated.
Measurements:	sgp30ebbrE26.b1: Average soil heat flow at the surface(surface_soil_heat_flux_avg) energy_storage_change_1 energy_storage_change_2 energy_storage_change_3 Latent heat flux(latent_heat_flux) energy_storage_change_4 surface_soil_heat_flux_2 surface_soil_heat_flux_1 energy_storage_change_5 Sensible heat flux(sensible_heat_flux) surface_soil_heat_flux_5 surface_soil_heat_flux_3 surface_soil_heat_flux_4

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DQRID : D020717.39

Start Date	Start Time	End Date	End Time	Data Quality Metric
06/01/2002	2115	06/30/2002	2356	Suspect

Subject:	SGP/EBBR/E26 - Multiplexer 2 Failure From High Temperature
DataStreams:	sgp30ebbrE26.b1
Description:	Multiplexer 2 is failing during times of control box temperatures above 29 degrees C. The failure begins in the last channel and progresses to lower channels as the temperature increases. It has not yet been determined whether the failure is in the relays or a solid state component of the multiplexer. This condition is probably due to the aging of the device and the millions of cycles that this 10 year old device has made. More failures of this sort may occur in the future. A cure is being sought aside from replacement of the multiplexers to prevent the problem. The indicated measurements need to be inspected to determine which ones are usable.
Measurements:	sgp30ebbrE26.b1: temp_air_bottom Average soil heat flow at the surface(surface_soil_heat_flux_avg) bowen_ratio Latent heat flux(latent_heat_flux) temp_air_top soil_heat_flow_3 soil_heat_flow_5 soil_heat_flow_4 Sensible heat flux(sensible_heat_flux) vapor_pressure_top vapor_pressure_bottom surface_soil_heat_flux_5 corr_soil_heat_flow_4 corr_soil_heat_flow_3 surface_soil_heat_flux_3 surface_soil_heat_flux_4 corr_soil_heat_flow_5

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DQRID : D021113.1

Start Date	Start Time	End Date	End Time	Data Quality Metric
04/01/2001	0000	06/18/2003	2359	Does not affect quality

Subject:	SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header
DataStreams:	sgp30ebbrE26.b1
Description:	The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the EBBR 30 minute netcdf header have been incorrect from the beginning of processing the data into netcdf files. The correct units are MJ/m^3/C. This does not affect the data quality.
Measurements:	sgp30ebbrE26.b1: soil_heat_capacity_2 soil_heat_capacity_3 soil_heat_capacity_1 soil_heat_capacity_5 soil_heat_capacity_4

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DQRID : D021113.4

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/01/1993	1200	06/18/2003	1159	Does not affect quality

Subject:	SGP/EBBR - Incorrect Units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in 30EBBR Header
DataStreams:	sgp30ebbrE26.b1
Description:	The units for Soil Heat Capacity (cs1, cs2, cs3, cs4, cs5) in the EBBR 30 minute netcdf header have been incorrect from the beginning of processing the data into netcdf files. The correct units are MJ/m^3/C. This does not affect the data quality. (NOTE: The actual begin date of some of these data streams is as early as 7/4/93. This DQR applies to all 30m EBBR data.)
Measurements:	sgp30ebbrE26.b1: soil_heat_capacity_2 soil_heat_capacity_3 soil_heat_capacity_1 soil_heat_capacity_5 soil_heat_capacity_4

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DQRID : D030110.27

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/27/2002	1605	11/27/2002	1635	Incorrect

Subject:	SGP/EBBR/E26 - Data Incorrect during 6 month checks
DataStreams:	sgp30ebbrE26.b1
Description:	Some of the measurements are incorrect during the 6 month checks.
Measurements:	sgp30ebbrE26.b1: temp_air_bottom temp_trh_top vapor_pressure_bottom bowen_ratio rh_top_fraction rh_bottom_fraction Latent heat flux(latent_heat_flux) temp_air_top temp_trh_bottom vapor_pressure_top Sensible heat flux(sensible_heat_flux)

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DQRID : D030117.26

Start Date	Start Time	End Date	End Time	Data Quality Metric
07/11/2002	1600	07/11/2002	1629	Incorrect

Subject:	SGP/EBBR/E26 - Measurements zero following logger restart
DataStreams:	sgp30ebbrE26.b1
Description:	Most of the measurements were zero, which normally happens after a datalogger restart.
Measurements:	sgp30ebbrE26.b1: Average soil heat flow at the surface(surface_soil_heat_flux_avg) Net radiation(net_radiation) Wind speed vector mean(wspd_vec_mean) soil_heat_capacity_5 soil_heat_capacity_4 soil_heat_capacity_2 soil_heat_capacity_3 bowen_ratio rh_top_fraction soil_heat_capacity_1 Wind speed, lower, 1-min avg(wspd_arith_mean) home_signal_30 Latent heat flux(latent_heat_flux) Soil temperature mean 5(soil_temp_5) Soil temperature mean 4(soil_temp_4) soil_heat_flow_3 soil_heat_flow_2 Soil temperature mean 3(soil_temp_3) soil_heat_flow_1 Soil temperature mean 2(soil_temp_2) Soil temperature mean 1(soil_temp_1) soil_heat_flow_5 soil_heat_flow_4 vapor_pressure_top vapor_pressure_bottom corr_soil_heat_flow_4 corr_soil_heat_flow_3 corr_soil_heat_flow_2 corr_soil_heat_flow_1 temp_reference corr_soil_heat_flow_5 temp_air_bottom Wind direction vector mean(wdir_vec_mean) wdir_vec_std energy_storage_change_1 energy_storage_change_2 energy_storage_change_3 energy_storage_change_4 temp_air_top energy_storage_change_5 temp_trh_bottom soil_moisture_5 surface_soil_heat_flux_5 surface_soil_heat_flux_3 surface_soil_heat_flux_4 Atmospheric pressure(atmos_pressure) soil_moisture_1 soil_moisture_2 soil_moisture_3 soil_moisture_4 temp_trh_top rh_bottom_fraction home_signal_15 surface_soil_heat_flux_2 surface_soil_heat_flux_1 Sensible heat flux(sensible_heat_flux)

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DQRID : D030117.27

Start Date	Start Time	End Date	End Time	Data Quality Metric
07/01/2002	0000	07/11/2002	1300	Incorrect

Subject:	SGP/EBBR/E26 - Multiplexer Problem
DataStreams:	sgp30ebbrE26.b1
Description:	One of the multiplexers exhibited dropouts of the channels, beginning with the last channel at temperatures above about 30 C and moving backward through the channels as the temperature rose. High temperatures affected the switching speed of the multiplexer. This is the first time that this behavior has been documented in a Campbell Scientific multiplexer. The multiplexer had been in continuous field use for 10 years and had experienced probably more switching cycles than what is normally expected of the device in that period. The multiplexer was replaced to solve the problem.
Measurements:	sgp30ebbrE26.b1: temp_air_bottom Average soil heat flow at the surface(surface_soil_heat_flux_avg) Latent heat flux(latent_heat_flux) temp_air_top surface_soil_heat_flux_2 surface_soil_heat_flux_1 Sensible heat flux(sensible_heat_flux) surface_soil_heat_flux_5 corr_soil_heat_flow_4 corr_soil_heat_flow_3 corr_soil_heat_flow_2 surface_soil_heat_flux_3 surface_soil_heat_flux_4 corr_soil_heat_flow_1 corr_soil_heat_flow_5

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DQRID : D030117.28

Start Date	Start Time	End Date	End Time	Data Quality Metric
08/27/2002	0830	09/05/2002	1700	Incorrect

Subject:	SGP/EBBR/E26 - Water in broken Net Radiometer Dome
DataStreams:	sgp30ebbrE26.b1
Description:	The net radiation measurement is incorrect. Measurements calculated using net radiation are also incorrect. No work-around is possible for this situation.
Measurements:	sgp30ebbrE26.b1: Latent heat flux(latent_heat_flux) Net radiation(net_radiation) Sensible heat flux(sensible_heat_flux)

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DQRID : D030117.29

Start Date	Start Time	End Date	End Time	Data Quality Metric
11/01/2002	0845	11/06/2002	0130	Incorrect

Subject:	SGP/EBBR/E26 - Battery Voltage Low
DataStreams:	sgp30ebbrE26.b1
Description:	When Battery Voltage drops below 10.5 volts, most measurements are suspect and some are often incorrect. The user will need to inspect the data carefully to determine the useability of the data.
Measurements:	sgp30ebbrE26.b1: Average soil heat flow at the surface(surface_soil_heat_flux_avg) Net radiation(net_radiation) Wind speed vector mean(wspd_vec_mean) soil_heat_capacity_5 soil_heat_capacity_4 soil_heat_capacity_2 soil_heat_capacity_3 bowen_ratio rh_top_fraction soil_heat_capacity_1 Wind speed, lower, 1-min avg(wspd_arith_mean) home_signal_30 Latent heat flux(latent_heat_flux) Soil temperature mean 5(soil_temp_5) Soil temperature mean 4(soil_temp_4) soil_heat_flow_3 soil_heat_flow_2 Soil temperature mean 3(soil_temp_3) soil_heat_flow_1 Soil temperature mean 2(soil_temp_2) Soil temperature mean 1(soil_temp_1) soil_heat_flow_5 soil_heat_flow_4 vapor_pressure_top vapor_pressure_bottom corr_soil_heat_flow_4 corr_soil_heat_flow_3 corr_soil_heat_flow_2 corr_soil_heat_flow_1 temp_reference corr_soil_heat_flow_5 temp_air_bottom Wind direction vector mean(wdir_vec_mean) wdir_vec_std energy_storage_change_1 energy_storage_change_2 energy_storage_change_3 energy_storage_change_4 temp_air_top energy_storage_change_5 temp_trh_bottom soil_moisture_5 surface_soil_heat_flux_5 surface_soil_heat_flux_3 surface_soil_heat_flux_4 Atmospheric pressure(atmos_pressure) soil_moisture_1 soil_moisture_2 soil_moisture_3 soil_moisture_4 temp_trh_top rh_bottom_fraction home_signal_15 surface_soil_heat_flux_2 surface_soil_heat_flux_1 Sensible heat flux(sensible_heat_flux)

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DQRID : D030128.2

Start Date	Start Time	End Date	End Time	Data Quality Metric
12/04/2002	1015	01/10/2003	1600	Incorrect

Subject:	SGP/EBBR/E26 - AEM Hung
DataStreams:	sgp30ebbrE26.b1
Description:	The AEM hung inbetween home positions during the period. The Bowen ratio, gradient measurements, sensible heat flux, and latent heat flux are incorrect.
Measurements:	sgp30ebbrE26.b1: temp_air_bottom temp_trh_top vapor_pressure_bottom bowen_ratio rh_top_fraction rh_bottom_fraction Latent heat flux(latent_heat_flux) temp_air_top temp_trh_bottom vapor_pressure_top Sensible heat flux(sensible_heat_flux)

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DQRID : D030128.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/10/2003	1900	01/10/2003	1904	Incorrect

Subject:	SGP/EBBR/E26 - Data zeros following logger restart
DataStreams:	sgp30ebbrE26.b1
Description:	Most measurements were zero after restart of the CR10 datalogger, after a calibration changeout of the EBBR unit.
Measurements:	sgp30ebbrE26.b1: Average soil heat flow at the surface(surface_soil_heat_flux_avg) Net radiation(net_radiation) Wind speed vector mean(wspd_vec_mean) soil_heat_capacity_5 soil_heat_capacity_4 soil_heat_capacity_2 soil_heat_capacity_3 bowen_ratio rh_top_fraction soil_heat_capacity_1 home_signal_30 Wind speed, lower, 1-min avg(wspd_arith_mean) Latent heat flux(latent_heat_flux) Soil temperature mean 5(soil_temp_5) Soil temperature mean 4(soil_temp_4) soil_heat_flow_3 soil_heat_flow_2 Soil temperature mean 3(soil_temp_3) soil_heat_flow_1 Soil temperature mean 2(soil_temp_2) Soil temperature mean 1(soil_temp_1) soil_heat_flow_5 soil_heat_flow_4 vapor_pressure_top vapor_pressure_bottom corr_soil_heat_flow_4 corr_soil_heat_flow_3 corr_soil_heat_flow_2 corr_soil_heat_flow_1 temp_reference corr_soil_heat_flow_5 temp_air_bottom Wind direction vector mean(wdir_vec_mean) wdir_vec_std energy_storage_change_1 energy_storage_change_2 energy_storage_change_3 energy_storage_change_4 temp_air_top energy_storage_change_5 temp_trh_bottom soil_moisture_5 surface_soil_heat_flux_5 surface_soil_heat_flux_3 surface_soil_heat_flux_4 Atmospheric pressure(atmos_pressure) soil_moisture_1 soil_moisture_2 soil_moisture_3 soil_moisture_4 temp_trh_top rh_bottom_fraction home_signal_15 surface_soil_heat_flux_2 surface_soil_heat_flux_1 Sensible heat flux(sensible_heat_flux)

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DQRID : D030128.4

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/14/2003	1725	01/23/2003	1715	Incorrect

Subject:	SGP/EBBR/E26 - Left Air Temperature Incorrect
DataStreams:	sgp30ebbrE26.b1
Description:	The left air temperature was incorrect during the period. Poor electronic connections may have caused this.
Measurements:	sgp30ebbrE26.b1: temp_air_bottom vapor_pressure_bottom bowen_ratio Latent heat flux(latent_heat_flux) temp_air_top vapor_pressure_top Sensible heat flux(sensible_heat_flux)

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DQRID : D030711.6

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/24/2003	1635	03/06/2003	1520	Incorrect

Subject:	SGP/EBBR/E26 -Right Air Temperature Incorrect
DataStreams:	sgp30ebbrE26.b1
Description:	One of the Right Air Temperature connections was loose, producing incorrect data.
Measurements:	sgp30ebbrE26.b1: temp_air_bottom bowen_ratio Latent heat flux(latent_heat_flux) temp_air_top Sensible heat flux(sensible_heat_flux)

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DQRID : D050324.3

Start Date	Start Time	End Date	End Time	Data Quality Metric
01/10/2003	1700	03/03/2005	1600	Incorrect

Subject:	SGP/EBBR/E26 - Incorrect soil type coefficients used
DataStreams:	sgp30ebbrE26.b1
Description:	The soil type coefficents for soil moisture were incorrect from the day of the system installation on, making soil moisture values too large. As a result, soil heat flows were overmeasured, and sensible and latent heat fluxes were underestimated.
Measurements:	sgp30ebbrE26.b1: Average soil heat flow at the surface(surface_soil_heat_flux_avg) energy_storage_change_1 energy_storage_change_2 energy_storage_change_3 energy_storage_change_4 energy_storage_change_5 surface_soil_heat_flux_5 soil_moisture_5 surface_soil_heat_flux_3 surface_soil_heat_flux_4 soil_moisture_1 soil_heat_capacity_5 soil_moisture_2 soil_heat_capacity_4 soil_moisture_3 soil_moisture_4 soil_heat_capacity_2 soil_heat_capacity_3 soil_heat_capacity_1 Latent heat flux(latent_heat_flux) surface_soil_heat_flux_2 surface_soil_heat_flux_1 Sensible heat flux(sensible_heat_flux) corr_soil_heat_flow_4 corr_soil_heat_flow_3 corr_soil_heat_flow_2 corr_soil_heat_flow_1 corr_soil_heat_flow_5

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DQRID : D050719.15

Start Date	Start Time	End Date	End Time	Data Quality Metric
04/01/2001	0000	03/31/2005	1700	Does not affect quality

Subject:	SGP/EBBR/E26 - Improved EBBR CR10 Program
DataStreams:	sgp30ebbrE26.b1
Description:	Effective 20050331.1700, the EBBR.E26 CR10 program was revised to improve the quality of the primary measurements as follows: 1) An RMS procedure is used to determine max and min limits of acceptable soil heat flow. This is applied to the individual soil sets. Measurements outside the limits are rejected and the measurements within the limits are used to calculate the average soil heat flow. 2) Max and min limits are used to determine incorrect values of net radiation, sensible heat flux (h), latent heat flux (e), and automatic exchange mechanism (AEM) signal. If AEM signal is outside the limits, h and e are set to 999s. If net radiation is outside the limits, h and e are set to 999s. If h or e are outside the limits, h and e are set to 999s. Virtually no incorrect soil measurement will affect the primary measurements of h and e. By setting h and e to 999s, it can be easily seen that the primary variables are incorrect; no other interpretation is possible. Prior to 20050331, the improved CR10 program was NOT in effect. DQRs have been submitted for known instances of incorrect soil measurements which affected the quality of the primary measurements of h and e. Note: the DQR begin date is the begin date of the sgp30ebbrE26.b1 data stream. The earlier version of the CR10 program was also used on previous EBBR datastream names (e.g. sgp30ebbrE26.a1). ~
Measurements:	sgp30ebbrE26.b1: Average soil heat flow at the surface(surface_soil_heat_flux_avg) Latent heat flux(latent_heat_flux) Sensible heat flux(sensible_heat_flux)

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