DQRs for Session: 136859 User:ismnCompleted: 08-17-2011

Data Quality Reports for Session: 136859 User: ismn Completed: 08/17/2011

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D030619.2	SGP/SWATS/E4 - Incorrect soil moisture data	sgpswatsE4.b1
D040212.5	SGP/SWATS/E4 - Sensor failures, 5cm and 15cm W	sgpswatsE4.b1
D040615.6	SGP/SWATS/E12 - Time drift	sgpswatsE12.b1, sgpswatspcpE12.b1
D050503.6	SGP/SWATS/E12 - Reprocess: Changed Depth Dimension	sgpswatsE12.b1
D060802.1	SGP/SWATS/E12 - Incorrect soil moisture	sgpswatsE12.b1
D071026.2	SGP/SWATS/E12 - Reprocess: Incorrect calibrations	sgpswatsE12.b1
D090615.1	SGP/SWATS/E12 - Precip measurement failure	sgpswatspcpE12.b1

DQRID : D030619.2

Start Date	Start Time	End Date	End Time
05/23/2003	1100	07/02/2003	1500
07/02/2003	1500	07/30/2003	1600
09/10/2003	1600	10/08/2003	1600
08/23/2007	1600	09/05/2007	1500

Subject:	SGP/SWATS/E4 - Incorrect soil moisture data
DataStreams:	sgpswatsE4.b1
Description:	The temperature rise readings on both the east and west profiles are too high. This also causes the matric potential and water content data to be incorrect. For the first, third and fourth date ranges, measurements are incorrect for all sensor locations (each depth on both profiles). For the second date range, measurements are incorrect for the lowest 8 sensor locations (the 60cm, 85cm, 125cm, and 175cm depths on both profiles).
Measurements:	sgpswatsE4.b1: Sensor Temperature Rise, West Profile(trise_W) Soil Water Potential, West Profile(soilwatpot_W) Sensor Temperature Rise, East Profile(trise_E) Volumetric Water Content, West Profile(watcont_W) Volumetric Water Content, East Profile(watcont_E) Soil Water Potential, East Profile(soilwatpot_E)

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DQRID : D040212.5

Start Date	Start Time	End Date	End Time
02/12/2004	1500	02/18/2004	1900

Subject:	SGP/SWATS/E4 - Sensor failures, 5cm and 15cm W
DataStreams:	sgpswatsE4.b1
Description:	The temperature rise readings from the 15-cm depth on the west profile were incorrect from 20040212:1500 to 20040217:0800. This also caused the matric potential and water content data for the 15-cm depth to be incorrect. The temperature rise readings from the 5-cm depth on the west profile were incorrect from 20040217:2300 to 20040218:1900. This also caused the matric potential and water content data for the 5-cm depth to be incorrect.
Measurements:	sgpswatsE4.b1: Sensor Temperature Rise, West Profile(trise_W) Soil Water Potential, West Profile(soilwatpot_W) Volumetric Water Content, West Profile(watcont_W)

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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 : 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 : D090615.1

Start Date	Start Time	End Date	End Time
06/04/2009	0000	06/16/2009	1628

Subject:	SGP/SWATS/E12 - Precip measurement failure
DataStreams:	sgpswatspcpE12.b1
Description:	The tipping-bucket rain gauge was not functioning correctly. The rain gauge measured no meaningful precipitation after 6/3 and did not agree well with nearby Oklahoma mesonet site precipitation measurements. Rain gauge replaced 6/16.
Measurements:	sgpswatspcpE12.b1: Precipitation, total(precip)

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