DQRs for Session: 142297 User:twfordCompleted: 05-07-2012

Data Quality Reports for Session: 142297 User: twford Completed: 05/07/2012

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D040129.1	SGP/SWATS/E19 - Unrecorded Precipitation	sgpswatspcpE19.a1
D040305.1	SGP/SWATS/E19 - Unrecorded Precipitation	sgpswatspcpE19.b1
D040525.16	SGP/SWATS/E19 - Metadata Errors	sgpswatsE19.a1, sgpswatsE19.b1, sgpswatspcpE19.a1
D040615.6	SGP/SWATS/E12 - Time drift	sgpswatsE12.b1, sgpswatspcpE12.b1
D041027.5	SGP/SWATS/E22 - Duplicate records removed from data files	sgpswatsE22.00, sgpswatspcpE22.b1
D090423.1	SGP/SWATS/E19 - Rain gauge failure	sgpswatspcpE19.b1
D090615.1	SGP/SWATS/E12 - Precip measurement failure	sgpswatspcpE12.b1

DQRID : D040129.1

Start Date	Start Time	End Date	End Time
08/07/2003	1450	10/12/2003	2359

Subject:	SGP/SWATS/E19 - Unrecorded Precipitation
DataStreams:	sgpswatspcpE19.a1
Description:	During this time period, the tipping bucket was obstructed and prevented from measuring precipitation, so any precipitation events will have erroneous measurements of 0. The obstruction is probably due to maintenance on 20030807 (YYYYMMDD) which resulted in erroneous recorded precipitation (nonzero) at 1450 GMT.
Measurements:	sgpswatspcpE19.a1: Precipitation, total(precip)

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DQRID : D040305.1

Start Date	Start Time	End Date	End Time
10/13/2003	0000	02/05/2004	1551

Subject:	SGP/SWATS/E19 - Unrecorded Precipitation
DataStreams:	sgpswatspcpE19.b1
Description:	During this time period, the tipping bucket was obstructed and prevented from measuring precipitation, so any precipitation events will have erroneous measurements of 0. The problem was corrected on 20040205 (YYYYMMDD) with erroneous recorded precipitation (nonzero) due to maintenance ending at 1551 GMT.
Measurements:	sgpswatspcpE19.b1: Precipitation, total(precip)

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DQRID : D040525.16

Start Date	Start Time	End Date	End Time
06/12/1997	0107	05/06/2003	2359

Subject:	SGP/SWATS/E19 - Metadata Errors
DataStreams:	sgpswatsE19.a1, sgpswatsE19.b1, sgpswatspcpE19.a1
Description:	The latitude, longitude and altitude of the El Reno (E19) site were incorrectly entered into the ARM database. The correct location of the SWATS.E19 instrument is: Lat: 35.557N Lon: 98.017W Alt: 421m
Measurements:	sgpswatsE19.b1: alt lon lat sgpswatspcpE19.a1: alt lon lat sgpswatsE19.a1: alt lat lon

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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) time_offset Sensor Temperature Rise, East Profile(trise_E) 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 : D041027.5

Start Date	Start Time	End Date	End Time
09/01/2004	0000	09/01/2004	2359

Subject:	SGP/SWATS/E22 - Duplicate records removed from data files
DataStreams:	sgpswatsE22.00, sgpswatspcpE22.b1
Description:	Due to a collection malfunction, the data for timestamps 163100 through 170000 were repeated in both the raw and cdf data sets. The duplicate records were removed.
Measurements:	sgpswatsE22.00: Raw data stream - documentation not supported sgpswatspcpE22.b1: time_offset time

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DQRID : D090423.1

Start Date	Start Time	End Date	End Time
04/10/2009	0000	05/26/2009	0000

Subject:	SGP/SWATS/E19 - Rain gauge failure
DataStreams:	sgpswatspcpE19.b1
Description:	The tipping-bucket rain gauge for the swatspcp was not functioning correctly. The rain gauge measured no precipitation after 03/29 even though most of the state received some precipitation on 04/12-04/13. The rain gauge was found to have a broken wire and was replaced on 05/21. Rainfall totals compare well with the El Reno Oklahoma Mesonet site for the last major rain event on 05/26.
Measurements:	sgpswatspcpE19.b1: Precipitation, total(precip)

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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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