DQRs for Session: 139913 User:yunyanCompleted: 01-18-2012

Data Quality Reports for Session: 139913 User: yunyan Completed: 01/18/2012

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D040615.6	SGP/SWATS/E12 - Time drift	sgpswatsE12.b1, sgpswatspcpE12.b1
D050503.6	SGP/SWATS/E12 - Reprocess: Changed Depth Dimension	sgpswatsE12.b1
D060531.6	SGP/SWATS/E9 - Incorrect reference temperature	sgpswatsE9.b1
D060802.1	SGP/SWATS/E12 - Incorrect soil moisture	sgpswatsE12.b1
D071026.2	SGP/SWATS/E12 - Reprocess: Incorrect calibrations	sgpswatsE12.b1
D081210.13	SGP/SWATS/E15 - Incorrect soil moisture	sgpswatsE15.b1
D110707.1	SGP/SWATS/E15 - Missing data	sgpswatsE15.b1

DQRID : D040615.6

Start Date	Start Time	End Date	End Time
02/19/2004	2212	03/10/2004	2247

Subject:	SGP/SWATS/E12 - Time drift
DataStreams:	sgpswatsE12.b1, sgpswatspcpE12.b1
Description:	The time synchronization server stopped working on Feb. 19th at 22:12:16 GMT. The clock was corrected by -5600.177269 seconds on March 10th at 22:47 GMT. The recorded times for observations are off by amounts ranging from 0 seconds on Feb. 19th to 5600 seconds on March 10th.
Measurements:	sgpswatspcpE12.b1: Precipitation, total(precip) time base_time time_offset sgpswatsE12.b1: tref Soil Temperature, West Profile(tsoil_W) Soil Water Potential, East Profile(soilwatpot_E) Sensor Temperature Rise, West Profile(trise_W) Volumetric Water Content, West Profile(watcont_W) Sensor Temperature Rise, East Profile(trise_E) time_offset Soil Water Potential, West Profile(soilwatpot_W) base_time Volumetric Water Content, East Profile(watcont_E) Soil Temperature, East Profile(tsoil_E)

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DQRID : D050503.6

Start Date	Start Time	End Date	End Time
07/13/1996	0000	04/19/2005	2359

Subject:	SGP/SWATS/E12 - Reprocess: Changed Depth Dimension
DataStreams:	sgpswatsE12.b1
Description:	The dimension "depth" in the netCDF files was incorrectly reported as 8, and has been changed. Newer files with the correct smaller depth dimension do not have extra placeholder values and thus are smaller in size.
Measurements:	sgpswatsE12.b1: depth

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DQRID : D060531.6

Start Date	Start Time	End Date	End Time
04/24/2006	1600	06/01/2006	1600

Subject:	SGP/SWATS/E9 - Incorrect reference temperature
DataStreams:	sgpswatsE9.b1
Description:	The reference temperature was incorrect resulting in incorrect results for soil moisture measurements.
Measurements:	sgpswatsE9.b1: Volumetric Water Content, East Profile(watcont_E) tref Soil Water Potential, West Profile(soilwatpot_W) Soil Water Potential, East Profile(soilwatpot_E) Volumetric Water Content, West Profile(watcont_W) Sensor Temperature Rise, East Profile(trise_E) Sensor Temperature Rise, West Profile(trise_W)

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DQRID : D060802.1

Start Date	Start Time	End Date	End Time
07/12/2006	0000	08/15/2006	1800

Subject:	SGP/SWATS/E12 - Incorrect soil moisture
DataStreams:	sgpswatsE12.b1
Description:	Temperature rise values were way to high (~40 deg C). Water potential is calculated from a rise (and subsequent drop) in temperature in the sensor that is normally ~1-5 degrees C. When the temperature rise is too high, the soil moisture data is dubious at best and unusable at worst. Since this "out-of-bounds" t_rise is so high, the soil moisture data are practically unusable. Soil temperature measurements were not affected.
Measurements:	sgpswatsE12.b1: Soil Water Potential, West Profile(soilwatpot_W) Soil Water Potential, East Profile(soilwatpot_E) Sensor Temperature Rise, West Profile(trise_W) Volumetric Water Content, West Profile(watcont_W) Volumetric Water Content, East Profile(watcont_E) Sensor Temperature Rise, East Profile(trise_E)

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DQRID : D071026.2

Start Date	Start Time	End Date	End Time
08/28/2007	2100	11/06/2007	1700

Subject:	SGP/SWATS/E12 - Reprocess: Incorrect calibrations
DataStreams:	sgpswatsE12.b1
Description:	Incorrect data configuration program was loaded on logger resulting in incorrect coefficients applied. Data will be reprocessed with correct coefficients.
Measurements:	sgpswatsE12.b1: tref Soil Temperature, West Profile(tsoil_W) Soil Water Potential, West Profile(soilwatpot_W) Soil Water Potential, East Profile(soilwatpot_E) Sensor Temperature Rise, West Profile(trise_W) Volumetric Water Content, West Profile(watcont_W) Volumetric Water Content, East Profile(watcont_E) Soil Temperature, East Profile(tsoil_E) Sensor Temperature Rise, East Profile(trise_E)

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DQRID : D081210.13

Start Date	Start Time	End Date	End Time
05/07/2008	2000	11/04/2008	2000

Subject:	SGP/SWATS/E15 - Incorrect soil moisture
DataStreams:	sgpswatsE15.b1
Description:	At 20:00 GMT on 05/07/08, temperature rise data from ALL sensors on both profiles began reporting values of temperature change near 0 C. These incorrect values of temperature rise result in incorrect soil moisture data for all sensors. Soil temperature data are unaffected.
Measurements:	sgpswatsE15.b1: Soil Water Potential, West Profile(soilwatpot_W) Soil Water Potential, East Profile(soilwatpot_E) Volumetric Water Content, East Profile(watcont_E) Sensor Temperature Rise, East Profile(trise_E) Volumetric Water Content, West Profile(watcont_W) Sensor Temperature Rise, West Profile(trise_W)

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DQRID : D110707.1

Start Date	Start Time	End Date	End Time
08/18/1997	0907	09/09/1997	1605
01/28/2002	2307	02/10/2002	1707
03/14/2002	2307	03/16/2002	0007
12/19/2004	1307	12/23/2004	2108
07/02/2006	1207	07/05/2006	1733
10/10/2007	1607	10/23/2007	1658
10/31/2007	1707	11/06/2007	2045
05/08/2010	0907	05/13/2010	1907
09/16/2010	0107	09/21/2010	1516
05/23/2011	2107	06/14/2011	1527
06/18/2011	0407	06/27/2011	1307

Subject:	SGP/SWATS/E15 - Missing data
DataStreams:	sgpswatsE15.b1
Description:	Data are missing and unrecoverable.
Measurements:	sgpswatsE15.b1: serial_numbers_E Soil Water Potential, East Profile(soilwatpot_E) time_offset Volumetric Water Content, East Profile(watcont_E) Sensor Temperature Rise, East Profile(trise_E) depth Soil Temperature, West Profile(tsoil_W) lat base_time alt tref Soil Water Potential, West Profile(soilwatpot_W) serial_numbers_W lon Soil Temperature, East Profile(tsoil_E) Volumetric Water Content, West Profile(watcont_W) Sensor Temperature Rise, West Profile(trise_W)

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