DQRs for Session: 135080 User:goulven1moCompleted: 05-25-2011

Data Quality Reports for Session: 135080 User: goulven1mo Completed: 05/25/2011

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
D050812.12	SGP/THWAPS/C1 - Minor bias in saturation vapor pressure	sgpthwapsC1.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 base_time Humidity, relative, 30-min intervals, standard deviation(sd_rh) 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_wdir sd_pres 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 : D050812.12

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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