DQRs for Session: 103016 User:koontzCompleted: 12-05-2006

Data Quality Reports for Session: 103016 User: koontz Completed: 12/05/2006

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D060119.1	NSA/METTWR/C1 - CMH Data Not Representative	nsamettwr4hC1.b1
D060215.4	NSA/METTWR/C1 - CMH Data missing	nsamettwr4hC1.b1
D060220.1	NSA/METTWR/C1 - Ultrasonic Wind Sensor Values Incorrect	nsamettwr4hC1.b1
D060220.2	NSA/METTWR/C1 - PWS data missing due to blizzard	nsamettwr4hC1.b1
D060224.1	NSA/METTWR/C1 - 2m Wind Speed Artificially Low	nsamettwr4hC1.b1
D060303.2	NSA/METTWR/C1 - CMH temp inaccurate	nsamettwr4hC1.b1
D060323.1	NSA/METTWR/C1 - 10m Wind Speed Low	nsamettwr4hC1.b1
D060323.2	NSA/METTWR/C1 - 10m Wind Speed Intermittently Low	nsamettwr4hC1.b1
D060323.3	NSA/METTWR/C1 - 40m Wind Speeds Intermittently Low	nsamettwr4hC1.b1
D060323.4	NSA/METTWR/C1 - 20m Wind Speeds Intermittently Low	nsamettwr4hC1.b1
D060426.5	NSA/METTWR/C1 - CMH Data Missing	nsamettwr4hC1.b1
D060426.6	NSA/METTWR/C1 - CMH Data Suspect	nsamettwr4hC1.b1
D060526.3	NSA/METTWR/C1 - Wind direction measurements suspect	nsamettwr4hC1.b1
D060817.4	NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa	nsamettwr4hC1.b1
D060913.6	NSA/METTWR/C1 - Present Weather Sensor data missing or incorrect due to calibration.	nsamettwr4hC1.b1

DQRID : D060119.1

Start Date	Start Time	End Date	End Time
01/09/2006	0120	01/09/2006	2330

Subject:	NSA/METTWR/C1 - CMH Data Not Representative
DataStreams:	nsamettwr4hC1.b1
Description:	The intake of the CMH was blocked with hoar frost. The temperatures measured by the chilled mirror and the temperature probe were not representative of the ambient conditions as a result. The RH data calculated from these values is incorrect also.
Measurements:	nsamettwr4hC1.b1: Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP) Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)

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DQRID : D060215.4

Start Date	Start Time	End Date	End Time
02/15/2006	1204	02/15/2006	2222

Subject:	NSA/METTWR/C1 - CMH Data missing
DataStreams:	nsamettwr4hC1.b1
Description:	CMH dew point and temp data was missing. Since Dew Point and Temp data missing RH% value = 100% during outage. Corrosion on power plug was athe problem.
Measurements:	nsamettwr4hC1.b1: Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP) Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)

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DQRID : D060220.1

Start Date	Start Time	End Date	End Time
02/19/2006	1829	02/20/2006	0400

Subject:	NSA/METTWR/C1 - Ultrasonic Wind Sensor Values Incorrect
DataStreams:	nsamettwr4hC1.b1
Description:	The values collected from the ultrasonic wind sensor were intermittently incorrect. Heavy wet snow during blizzard condition was interfering with the ultrasonic readings.
Measurements:	nsamettwr4hC1.b1: Sonic Arithmetic Mean Wind Speed(SonicWS_S_WVT) Sonic Vector Averaged Wind Direction(SonicWD_DU_WVT) Average Y Component of Sonic Wind Speed(SonicY_AVG) Standard Deviation of Sonic Vector Averaged Wind Direction(SonicWD_SDU_WVT) Average Sonic Static Speed of Sound(SonicS_AVG) Sonic Vector Averaged Wind Speed(SonicWS_U_WVT) Average X Component of Sonic Wind Speed(SonicX_AVG)

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DQRID : D060220.2

Start Date	Start Time	End Date	End Time
02/19/2006	1632	02/20/2006	2137

Subject:	NSA/METTWR/C1 - PWS data missing due to blizzard
DataStreams:	nsamettwr4hC1.b1
Description:	PWS was offline and data was missing. A blizzard consisting of heavy wet snow and strong winds caused snow impaction in the optics. The PWS reported missing data as it was unable to measure anything meaningful.
Measurements:	nsamettwr4hC1.b1: 15 minute Present Weather Code(PwCod15mi) 1 minute Average Visibility(AvgVis1mi) Instant Present Weather Code(InstPwCod) 1 hour Present Weather Code(PwCod1hr) Cumulative Snow Sum(CumSnow) 10 minute Average Visibility(AvgVis10m) Precipitation Rate(PcpRate) Present Weather Sensor Alarm(PWSAlarm)

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DQRID : D060224.1

Start Date	Start Time	End Date	End Time
02/19/2006	2010	02/20/2006	0934

Subject:	NSA/METTWR/C1 - 2m Wind Speed Artificially Low
DataStreams:	nsamettwr4hC1.b1
Description:	The 2m wind speed values were artificially low due to snow impaction during a heavy blizzard. The cup anemometer heaters could not keep up with the rapid deposition of snow.
Measurements:	nsamettwr4hC1.b1: 2m Vector Averaged Wind Speed(WS2M_U_WVT) 2m Arithmetic Mean Wind Speed(WS2M_S_WVT)

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DQRID : D060303.2

Start Date	Start Time	End Date	End Time
02/28/2006	0700	03/06/2006	2100

Subject:	NSA/METTWR/C1 - CMH temp inaccurate
DataStreams:	nsamettwr4hC1.b1
Description:	The CMH Temperature was consistently 4-7 degrees warmer than the 2M, 40M, 20M, and 10M temp. Intake fan failure; fan was replaced.
Measurements:	nsamettwr4hC1.b1: Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP) Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)

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DQRID : D060323.1

Start Date	Start Time	End Date	End Time
01/02/2006	0500	01/06/2006	1745
01/14/2006	1202	01/23/2006	1140

Subject:	NSA/METTWR/C1 - 10m Wind Speed Low
DataStreams:	nsamettwr4hC1.b1
Description:	The 10m wind speed values are too low due to ice accumulation on the cup anemometer.
Measurements:	nsamettwr4hC1.b1: 10m Arithmetic Mean Wind Speed(WS10M_S_WVT) 10m Vector Averaged Wind Speed(WS10M_U_WVT)

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DQRID : D060323.2

Start Date	Start Time	End Date	End Time
01/09/2006	1030	01/13/2006	0402

Subject:	NSA/METTWR/C1 - 10m Wind Speed Intermittently Low
DataStreams:	nsamettwr4hC1.b1
Description:	The 10m wind speeds are intermittently too low due to ice accumulation on the cup anemometer.
Measurements:	nsamettwr4hC1.b1: 10m Arithmetic Mean Wind Speed(WS10M_S_WVT) 10m Vector Averaged Wind Speed(WS10M_U_WVT)

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DQRID : D060323.3

Start Date	Start Time	End Date	End Time
01/10/2006	0600	01/13/2006	0402
01/26/2006	1602	01/27/2006	0516
02/03/2006	0020	02/05/2006	0540

Subject:	NSA/METTWR/C1 - 40m Wind Speeds Intermittently Low
DataStreams:	nsamettwr4hC1.b1
Description:	The 40m wind speed values were too low due to ice accumulation on the cup anemometer.
Measurements:	nsamettwr4hC1.b1: 40m Vector Averaged Wind Speed(WS40M_U_WVT) 40m Arithmetic Mean Wind Speed(WS40M_S_WVT)

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DQRID : D060323.4

Start Date	Start Time	End Date	End Time
01/12/2006	0812	01/13/2006	0402
02/03/2006	0115	02/03/2006	1603

Subject:	NSA/METTWR/C1 - 20m Wind Speeds Intermittently Low
DataStreams:	nsamettwr4hC1.b1
Description:	The 20m wind speeds were artificially low due to ice accumulation on the cup anemometer.
Measurements:	nsamettwr4hC1.b1: 20m Vector Averaged Wind Speed(WS20M_U_WVT) 20m Arithmetic Mean Wind Speed(WS20M_S_WVT)

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DQRID : D060426.5

Start Date	Start Time	End Date	End Time
03/23/2006	2250	03/25/2006	0036

Subject:	NSA/METTWR/C1 - CMH Data Missing
DataStreams:	nsamettwr4hC1.b1
Description:	CMH data was missing due to it being removed for maintenance.
Measurements:	nsamettwr4hC1.b1: Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP) Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)

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DQRID : D060426.6

Start Date	Start Time	End Date	End Time
03/25/2006	0037	04/11/2006	1811

Subject:	NSA/METTWR/C1 - CMH Data Suspect
DataStreams:	nsamettwr4hC1.b1
Description:	CMH data was suspect due to incorrect calibration caused by procedural errors. The procedures were corrected and a new calibration completed.
Measurements:	nsamettwr4hC1.b1: Chilled Mirror Calculated Vapor Pressure(VPCMH) Chilled Mirror Calculated Relative Humidity(CMHRH) Chilled Mirror Dew Point(CMHDP) Chilled Mirror Temperature(CMHTemp) Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)

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DQRID : D060526.3

Start Date	Start Time	End Date	End Time
05/25/2006	0300	06/01/2006	0000

Subject:	NSA/METTWR/C1 - Wind direction measurements suspect
DataStreams:	nsamettwr4hC1.b1
Description:	20m wind direction standard deviation was 0 degrees for extended periods of time. This suggests the wind vane was icing up.
Measurements:	nsamettwr4hC1.b1: 20m Vector Averaged Wind Direction(WD20M_DU_WVT) Standard Deviation of 20m Vector Averaged Wind Direction(WD20M_SDU_WVT)

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DQRID : D060817.4

Start Date	Start Time	End Date	End Time
10/31/2003	0000	07/12/2006	1608

Subject:	NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa
DataStreams:	nsamettwr4hC1.b1
Description:	Barometric pressure data was converted from hPa to kPa in order to standardize the measurement units among ARM sites and to conform to accepted standard units determined by the scientific community.
Measurements:	nsamettwr4hC1.b1: Atmospheric Pressure(AtmPress)

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DQRID : D060913.6

Start Date	Start Time	End Date	End Time
06/13/2006	2145	06/13/2006	2335

Subject:	NSA/METTWR/C1 - Present Weather Sensor data missing or incorrect due to calibration.
DataStreams:	nsamettwr4hC1.b1
Description:	The Present Weather Sensor data was missing or incorrect due to calibration checks.
Measurements:	nsamettwr4hC1.b1: 15 minute Present Weather Code(PwCod15mi) 1 minute Average Visibility(AvgVis1mi) Instant Present Weather Code(InstPwCod) 1 hour Present Weather Code(PwCod1hr) Cumulative Snow Sum(CumSnow) 10 minute Average Visibility(AvgVis10m) Precipitation Rate(PcpRate) Cumulative Water Sum(CumH2O) Present Weather Sensor Alarm(PWSAlarm)

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