DQRs for Session: 152448 User:wharton4Completed: 08-20-2013

Data Quality Reports for Session: 152448 User: wharton4 Completed: 08/20/2013

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D020313.1	SGP/THWAPS/C1 - THWAPS C1 miscalibrated	sgpthwapsC1.a1, sgpthwapsC1.b1
D030917.21	SGP/THWAPS/B1/B5/B6/C1 - Missing data due to Ice storm and clock problems	sgpthwapsB1.00, sgpthwapsB1.a1, sgpthwapsB1.b1, sgpthwapsB5.00, sgpthwapsB5.a1, sgpthwapsB5.b1, sgpthwapsB6.00, sgpthwapsB6.a1, sgpthwapsB6.b1, sgpthwapsC1.00, sgpthwapsC1.a1, sgpthwapsC1.b1
D041123.1	SGP/THWAPS/C1 - RH Sensor Calibration	sgpthwapsC1.b1
D050812.10	SGP/THWAPS/C1 - Minor bias in humidity	sgpthwapsC1.a1, sgpthwapsC1.b1
D050812.12	SGP/THWAPS/C1 - Minor bias in saturation vapor pressure	sgpthwapsC1.b1
D070613.2	SGP/RAIN/C1 - Funnel clogged	sgprainC1.b1
D080116.24	SGP/THWAPS/C1 - RH Data Incorrect	sgpthwapsC1.b1
D090211.2	SGP/THWAPS/C1 - Barometer intermittent	sgpthwapsC1.b1
D090306.1	SGP/THWAPS/C1 - Time stamp of data record incorrect	sgpthwapsC1.b1
D090824.2	SGP/THWAPS/C1 - Wind speed incorrect	sgpthwapsC1.b1
D110724.1	SGP/RAIN/C1 - Incorrect precipitation measurements	sgprainC1.b1
D111027.1	SGP/RAIN/C1 - Missing data	sgprainC1.b1
D120113.5	SGP/RAIN/C1 - Reprocess: Incorrect datestamp	sgprainC1.b1
D120301.2	SGP/RAIN/C1 - Lightning strike	sgprainC1.b1
D130617.2	SGP/RAIN/C1 - Instrument problem	sgprainC1.00, sgprainC1.b1, sgprainauxC1.00, sgprainauxC1.b1
D130711.1	SGP/THWAPS/C1 - T/RH sensor failure	sgpthwapsC1.b1
D991008.1	SGP/THWAPS - RH values low by factor of 1.1	sgpthwapsC1.a1, sgpthwapsC1.b1, sgpthwapsC1.00, DsgpthwapsC1.a1, DsgpthwapsC1.b1

DQRID : D020313.1

Start Date	Start Time	End Date	End Time
03/09/2002	0340	04/23/2002	1418

Subject:	SGP/THWAPS/C1 - THWAPS C1 miscalibrated
DataStreams:	sgpthwapsC1.a1, sgpthwapsC1.b1
Description:	Power outages apparently led to the THWAPS HMP233 temperature and RH sensor being replaced at C1. The power went out at 0340 on 3/9 was restored at 0635 and went out again at 2025. The new HMP233 appears to be incorrectly calibrated and all temperature data since its installation are wrong. If I am correct about the nature of the calibration problem, the true average temperature can be recovered from that recorded by a linear conversion, but I don't think its worth the trouble.
Measurements:	sgpthwapsC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative, 30-min intervals, standard deviation(sd_rh) Temperature, air, 30-min intervals, standard deviation(sd_temp) Temperature, air(temp) Humidity, relative(rh) sgpthwapsC1.a1: Temperature, air, 30-min intervals, standard deviation(sd_temp) Humidity, relative, 30-min intervals, standard deviation(sd_rh) Humidity, relative(rh) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Temperature, air(temp)

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DQRID : D030917.21

Start Date	Start Time	End Date	End Time
03/09/2002	2055	03/11/2002	2005
03/13/2002	1755	03/14/2002	1505

Subject:	SGP/THWAPS/B1/B5/B6/C1 - Missing data due to Ice storm and clock problems
DataStreams:	sgpthwapsB1.00, sgpthwapsB1.a1, sgpthwapsB1.b1, sgpthwapsB5.00, sgpthwapsB5.a1, sgpthwapsB5.b1, sgpthwapsB6.00, sgpthwapsB6.a1, sgpthwapsB6.b1, sgpthwapsC1.00, sgpthwapsC1.a1, sgpthwapsC1.b1
Description:	Data are missing due to power failures caused by an ice storm and resulting system/instrument clock problems.
Measurements:	sgpthwapsC1.b1: alt Mean Wind Speed(wspd) lon Humidity, relative, 30-min intervals, standard deviation(sd_rh) base_time Temperature, air(temp) Unit Vector Wind Direction(wdir) time_offset sd_vap_pres sd_wdir Pressure, atmospheric, constant value of model level, RUC model output(pres) sd_pres Humidity, relative(rh) vbat Temperature, air, 30-min intervals, standard deviation(sd_temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) lat sgpthwapsB5.00: Raw data stream - documentation not supported sgpthwapsC1.a1: Temperature, air, 30-min intervals, standard deviation(sd_temp) Temperature, air(temp) sd_vap_pres vbat lon alt time_offset Humidity, relative(rh) base_time sd_wdir Pressure, vapor, 60-m height, 30-min intervals(vap_pres) sd_pres Unit Vector Wind Direction(wdir) Humidity, relative, 30-min intervals, standard deviation(sd_rh) lat Mean Wind Speed(wspd) Pressure, atmospheric, constant value of model level, RUC model output(pres) sgpthwapsB6.a1: sd_pres sd_wdir Mean Wind Speed(wspd) base_time lon Humidity, relative, 30-min intervals, standard deviation(sd_rh) vbat Temperature, air(temp) Unit Vector Wind Direction(wdir) Pressure, atmospheric, constant value of model level, RUC model output(pres) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) sd_vap_pres Temperature, air, 30-min intervals, standard deviation(sd_temp) Humidity, relative(rh) lat time_offset alt sgpthwapsC1.00: Raw data stream - documentation not supported sgpthwapsB6.b1: Humidity, relative(rh) base_time sd_pres Humidity, relative, 30-min intervals, standard deviation(sd_rh) vbat Temperature, air, 30-min intervals, standard deviation(sd_temp) sd_wdir Unit Vector Wind Direction(wdir) lon Mean Wind Speed(wspd) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Pressure, atmospheric, constant value of model level, RUC model output(pres) Temperature, air(temp) time_offset alt sd_vap_pres lat sgpthwapsB1.00: Raw data stream - documentation not supported sgpthwapsB1.b1: Mean Wind Speed(wspd) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Pressure, atmospheric, constant value of model level, RUC model output(pres) sd_vap_pres lat Humidity, relative(rh) Unit Vector Wind Direction(wdir) Temperature, air(temp) time_offset Temperature, air, 30-min intervals, standard deviation(sd_temp) lon Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_wdir vbat alt base_time sd_pres sgpthwapsB1.a1: sd_wdir lat Pressure, vapor, 60-m height, 30-min intervals(vap_pres) base_time Humidity, relative(rh) Pressure, atmospheric, constant value of model level, RUC model output(pres) Temperature, air, 30-min intervals, standard deviation(sd_temp) time_offset Temperature, air(temp) sd_pres lon vbat sd_vap_pres Unit Vector Wind Direction(wdir) alt Humidity, relative, 30-min intervals, standard deviation(sd_rh) Mean Wind Speed(wspd) sgpthwapsB6.00: Raw data stream - documentation not supported sgpthwapsB5.a1: lon Mean Wind Speed(wspd) lat Unit Vector Wind Direction(wdir) Humidity, relative(rh) Humidity, relative, 30-min intervals, standard deviation(sd_rh) base_time sd_pres vbat time_offset alt sd_vap_pres Temperature, air(temp) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) sd_wdir Pressure, atmospheric, constant value of model level, RUC model output(pres) Temperature, air, 30-min intervals, standard deviation(sd_temp) sgpthwapsB5.b1: lon sd_pres vbat sd_vap_pres Humidity, relative(rh) Unit Vector Wind Direction(wdir) time_offset Temperature, air, 30-min intervals, standard deviation(sd_temp) Humidity, relative, 30-min intervals, standard deviation(sd_rh) alt Pressure, atmospheric, constant value of model level, RUC model output(pres) lat Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Temperature, air(temp) sd_wdir base_time Mean Wind Speed(wspd)

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DQRID : D041123.1

Start Date	Start Time	End Date	End Time
11/16/2004	2135	11/29/2004	1930

Subject:	SGP/THWAPS/C1 - RH Sensor Calibration
DataStreams:	sgpthwapsC1.b1
Description:	The analog output for the T/RH probe was incorrectly calibrated. This caused excessively high readings of RH.
Measurements:	sgpthwapsC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres Humidity, relative(rh)

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DQRID : D050812.10

Start Date	Start Time	End Date	End Time
09/21/1999	0000	12/07/1999	1100

Subject:	SGP/THWAPS/C1 - Minor bias in humidity
DataStreams:	sgpthwapsC1.a1, sgpthwapsC1.b1
Description:	The THWAPS humidity sensor output was scaled so that the instrument output voltage range (0-1VDC) represented 0-100 %RH. Comparisons with the co-located chilled mirror sensor at the CF suggested that the THWAPS RH sensor was reading artifically low at high humidities because of this 100 %RH maximum. The scaling of the system was changed so that 0-1 VDC now represents 0-110 %RH. This resulted in a slight loss of precision in the measurements, but since the RH measurement is only accurate to 2-3 %RH at best, this isn't a significant problem.
Measurements:	sgpthwapsC1.b1: Humidity, relative(rh) sgpthwapsC1.a1: Humidity, relative(rh)

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DQRID : D050812.12

Start Date	Start Time	End Date	End Time
09/21/1999	0000	08/10/2005	1445

Subject:	SGP/THWAPS/C1 - Minor bias in saturation vapor pressure
DataStreams:	sgpthwapsC1.b1
Description:	The saturation vapor correction when temps are below 0C contained an error in the multiplier. The incorrect multiplier only equates to an error of 0.01 kPa which is less than the stated uncertainty of the measurement (+/- 0.035 kPa).
Measurements:	sgpthwapsC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres)

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DQRID : D070613.2

Start Date	Start Time	End Date	End Time
06/01/2007	0000	06/02/2007	2359

Subject:	SGP/RAIN/C1 - Funnel clogged
DataStreams:	sgprainC1.b1
Description:	The funnel for the instrument was clogged and the results for this time period are not reliable.
Measurements:	sgprainC1.b1: lon time base_time lat Rainfall rate(rain_rate) Precipitation(precip_tbrg) time_offset alt

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DQRID : D080116.24

Start Date	Start Time	End Date	End Time
12/22/2007	1750	12/22/2007	2130

Subject:	SGP/THWAPS/C1 - RH Data Incorrect
DataStreams:	sgpthwapsC1.b1
Description:	The RH data was incorrect during the times listed. Reason unknown. The sensor recovered on its own.
Measurements:	sgpthwapsC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres Humidity, relative(rh)

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DQRID : D090211.2

Start Date	Start Time	End Date	End Time
01/09/2009	0000	02/13/2009	2359

Subject:	SGP/THWAPS/C1 - Barometer intermittent
DataStreams:	sgpthwapsC1.b1
Description:	Intermittent dropouts on the barometer data were occurring, with data reading low or missing. Loose wiring was the probable culprit. In most instances, only 1 minute of data was missing. Linear interpolation between the last known good point and the first good point following the dropout can be accomplished.
Measurements:	sgpthwapsC1.b1: Pressure, atmospheric, constant value of model level, RUC model output(pres)

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DQRID : D090306.1

Start Date	Start Time	End Date	End Time
12/09/2008	0000	01/23/2009	2359

Subject:	SGP/THWAPS/C1 - Time stamp of data record incorrect
DataStreams:	sgpthwapsC1.b1
Description:	Due to problems with the collector system, the datalogger was being time synched inappropriately. This problem was intermittent and did not affect every time stamp. The worst case time adjustments were approximately +/- 7 minutes. These were infrequent and most of the time adjustments were less than 7 minutes.
Measurements:	sgpthwapsC1.b1: time_offset base_time

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DQRID : D090824.2

Start Date	Start Time	End Date	End Time
07/17/2009	0000	11/27/2009	1745

Subject:	SGP/THWAPS/C1 - Wind speed incorrect
DataStreams:	sgpthwapsC1.b1
Description:	The wind sensor was reporting 0 m/s winds for excessive periods of time and appeared to measure lower wind speeds than nearby co-located wind sensors. Sensor was replaced.
Measurements:	sgpthwapsC1.b1: Mean Wind Speed(wspd)

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DQRID : D110724.1

Start Date	End Date	End Time
04/24/2010	04/24/2010	2359
04/26/2010	04/26/2010	2359
04/30/2010	04/30/2010	2359
05/03/2010	05/06/2010	2359
05/09/2010	05/10/2010	2359
05/12/2010	05/17/2010	2359
05/19/2010	05/25/2010	2359
05/29/2010	05/29/2010	2359
05/31/2010	05/31/2010	2359
06/04/2010	06/04/2010	2359
06/07/2010	06/07/2010	2359
06/09/2010	06/10/2010	2359
06/14/2010	06/16/2010	2359
06/20/2010	06/20/2010	2359
07/02/2010	07/07/2010	2359
07/10/2010	07/10/2010	2359
07/16/2010	07/16/2010	2359
07/24/2010	07/27/2010	2359
08/02/2010	08/02/2010	2359
08/15/2010	08/31/2010	2359
09/01/2010	09/09/2010	2359

Subject:	SGP/RAIN/C1 - Incorrect precipitation measurements
DataStreams:	sgprainC1.b1
Description:	RAIN TBRG precipitation measurements were significantly lower than accumulated precipitation measured by co-located ORG and MET instruments. This occurred in both light and heavy rain events. The tipping bucket sensor was replaced by a weighing bucket rain gauge.
Measurements:	sgprainC1.b1: Rainfall rate(rain_rate) Precipitation(precip_tbrg)

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DQRID : D111027.1

Start Date	Start Time	End Date	End Time
09/27/2011	1837	09/28/2011	0120
10/07/2011	1427	10/18/2011	1527
09/01/2011	0012	09/03/2011	2206
09/17/2011	1238	09/19/2011	1516

Subject:	SGP/RAIN/C1 - Missing data
DataStreams:	sgprainC1.b1
Description:	The datalogger connection was disrupted resulting in no data from the weighing bucket rain gauge.
Measurements:	sgprainC1.b1: total_mm total_weight error_latch stat_latch frequency2 frequency1 frequency3 Precipitation rate(precip_rate) Precipitation, total(precip) temp3 weight3 weight2 temp1 weight1 Model derived 2-meter temperature(temp2)

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DQRID : D120113.5

Start Date	Start Time	End Date	End Time
11/21/2011	0000	11/21/2011	2359

Subject:	SGP/RAIN/C1 - Reprocess: Incorrect datestamp
DataStreams:	sgprainC1.b1
Description:	The datestamp was off by one day for a several day period. Precipitation was only reported for one day during this time period. The data for 20111121 should be reported as 20111122.
Measurements:	sgprainC1.b1: maintenance_cnt total_mm volt_min error_latch alt stat_latch weight3 time_offset weight2 weight1 time total_weight base_time scans_per_min lon frequency2 frequency1 Precipitation rate(precip_rate) lat frequency3 Precipitation, total(precip) ptemp temp3 temp1 Model derived 2-meter temperature(temp2)

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DQRID : D120301.2

Start Date	Start Time	End Date	End Time
06/12/2011	0500	06/15/2011	0000

Subject:	SGP/RAIN/C1 - Lightning strike
DataStreams:	sgprainC1.b1
Description:	A lightning strike took out the instrument on 6/12. Error_latch and stat_latch flags were tripped and the instrument failed to record precip measured by co-located instruments (e.g. on 6/13). Voltage and other data fields were also very erratic. Instrument was replaced and normal operations resumed on 20110615.
Measurements:	sgprainC1.b1: maintenance_cnt total_mm volt_min total_weight error_latch scans_per_min stat_latch frequency2 frequency1 frequency3 Precipitation rate(precip_rate) Precipitation, total(precip) ptemp temp3 weight3 weight2 temp1 weight1 Model derived 2-meter temperature(temp2)

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DQRID : D130617.2

Start Date	Start Time	End Date	End Time
05/30/2013	0000	06/13/2013	1900

Subject:	SGP/RAIN/C1 - Instrument problem
DataStreams:	sgprainC1.00, sgprainC1.b1, sgprainauxC1.00, sgprainauxC1.b1
Description:	Instrument has shown very large jumps in accumulated rain during the past week when there is no rain or very little rain. This is coupled with a known issue that is being worked on with the filtering out of noise in the instrument. This filtering leads to removal of low rain rate data resulting low accumulation totals on days with low maximum rain rates (<60 mm/hr)
Measurements:	sgprainC1.b1: maintenance_cnt total_mm volt_min error_latch alt stat_latch weight3 weight2 time_offset weight1 time total_weight base_time scans_per_min lon frequency2 frequency1 lat frequency3 Precipitation rate(precip_rate) Precipitation, total(precip) ptemp temp3 temp1 Model derived 2-meter temperature(temp2) sgprainauxC1.00: AVHRR satellite images for Darwin from BOM (RAW)(raw) sgprainauxC1.b1: lon panel_temp_min batt_volt panel_temp_max time_offset base_time alt batt_volt_max time batt_volt_min lat sgprainC1.00: AVHRR satellite images for Darwin from BOM (RAW)(raw)

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DQRID : D130711.1

Start Date	Start Time	End Date	End Time
06/28/2013	0130	07/03/2013	1510

Subject:	SGP/THWAPS/C1 - T/RH sensor failure
DataStreams:	sgpthwapsC1.b1
Description:	Storm damage caused failure of the temperature/humidity sensor. Sensor replaced.
Measurements:	sgpthwapsC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres Temperature, air, 30-min intervals, standard deviation(sd_temp) Temperature, air(temp) Humidity, relative(rh)

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DQRID : D991008.1

Start Date	Start Time	End Date	End Time
09/27/1999	1445	10/14/1999	2230

Subject:	SGP/THWAPS - RH values low by factor of 1.1
DataStreams:	sgpthwapsC1.a1, sgpthwapsC1.b1, sgpthwapsC1.00, DsgpthwapsC1.a1, DsgpthwapsC1.b1
Description:	Because of instrument mentor stupidity, all C1 THWAPS RH data collected from the begin date of this DQR are low by a factor of 1.1. This error also will affect the vapor pressure data. The problem is that the CSI data logger is expecting the data to be scaled 0-100%RH on the range 0-1V, but it is now being scaled 0-110%RH on the range 0-1V.
Measurements:	sgpthwapsC1.b1: Pressure, vapor, 60-m height, 30-min intervals(vap_pres) Humidity, relative, 30-min intervals, standard deviation(sd_rh) sd_vap_pres Humidity, relative(rh) sgpthwapsC1.a1: sd_vap_pres Humidity, relative, 30-min intervals, standard deviation(sd_rh) Humidity, relative(rh) Pressure, vapor, 60-m height, 30-min intervals(vap_pres) sgpthwapsC1.00: Raw data stream - documentation not supported DsgpthwapsC1.a1: Development data stream - documentation not supported DsgpthwapsC1.b1: Development data stream - documentation not supported

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