DQRs for Session: 148108 User:perezCompleted: 02-21-2013

Data Quality Reports for Session: 148108 User: perez Completed: 02/21/2013

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D040722.3	NSA/METTWR/C2 - Chilled Mirror grounding and timing issues	nsamettwr2hC2.b1
D050527.3	NSA/METTWR/C2 - Incorrect Maximum for Precip Values	nsamettwr2hC2.b1
D060223.3	NSA/METTWR/C2 - CMH Data incorrect	nsamettwr2hC2.b1
D060223.4	NSA/METTWR/C2 - PWS data incorrect	nsamettwr2hC2.b1
D060818.1	NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa	nsamettwr2hC2.b1
D060913.3	NSA/METTWR/C2 - PWS data missing/incorrect due to maintenance.	nsamettwr2hC2.b1

DQRID : D040722.3

Start Date	Start Time	End Date	End Time
11/06/2003	1719	07/14/2004	1500

Subject:	NSA/METTWR/C2 - Chilled Mirror grounding and timing issues
DataStreams:	nsamettwr2hC2.b1
Description:	From beginning of data stream, the chilled mirror data was intermittent at best. Problems with grounding and timing issues between logging instruments caused data to be incorrect and at times missing.
Measurements:	nsamettwr2hC2.b1: VPCMH CMHDP SatVPCMH CMHRH CMHTemp

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DQRID : D050527.3

Start Date	Start Time	End Date	End Time
11/06/2003	0000	05/26/2005	1014

Subject:	NSA/METTWR/C2 - Incorrect Maximum for Precip Values
DataStreams:	nsamettwr2hC2.b1
Description:	The max values for cumulative rain sum of 99 mm and the rain rate of 999 mm/hr are incorrect. In communication with the manufacturer it has been found that the manual was in error. The actual max values of the cumulative rain sum is 99.99 mm and the rain rate is 999.99 mm/hr.
Measurements:	nsamettwr2hC2.b1: CumH2O Precipitation Rate(PCPRate)

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DQRID : D060223.3

Start Date	Start Time	End Date	End Time
02/19/2006	1405	02/20/2006	1107
02/21/2006	0619	02/21/2006	2255

Subject:	NSA/METTWR/C2 - CMH Data incorrect
DataStreams:	nsamettwr2hC2.b1
Description:	CMH data was incorrect due to blockage of intake by heavy, wet snow during blizzard conditions.
Measurements:	nsamettwr2hC2.b1: VPCMH CMHDP SatVPCMH CMHRH CMHTemp

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DQRID : D060223.4

Start Date	Start Time	End Date	End Time
02/21/2006	1113	02/21/2006	2359

Subject:	NSA/METTWR/C2 - PWS data incorrect
DataStreams:	nsamettwr2hC2.b1
Description:	The Present Weather Sensor measurement optics were blocked by heavy, wet snow during blizzard conditions.
Measurements:	nsamettwr2hC2.b1: PWCod1hr CumSnow PWSAlarm CumH2O PWcod15mi InstPWCod Visibility, 1 minute average(AvgVis1mi) Precipitation Rate(PCPRate) Visibility, 10 minute average(AvgVis10m)

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DQRID : D060818.1

Start Date	Start Time	End Date	End Time
11/06/2003	0000	07/12/2006	1853

Subject:	NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa
DataStreams:	nsamettwr2hC2.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:	nsamettwr2hC2.b1: Pressure, atmospheric(AtmPress)

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DQRID : D060913.3

Start Date	Start Time	End Date	End Time
08/21/2006	2228	08/21/2006	2329
08/22/2006	0233	08/22/2006	0301
08/23/2006	2214	08/23/2006	2219
08/24/2006	1617	08/24/2006	1628
08/25/2006	0257	08/25/2006	0309
09/01/2006	0158	09/01/2006	0331

Subject:	NSA/METTWR/C2 - PWS data missing/incorrect due to maintenance.
DataStreams:	nsamettwr2hC2.b1
Description:	Present Weather Sensor data was missing or incorrect due to maintenance activities repeated approximately daily as we were trying to correct another problem.
Measurements:	nsamettwr2hC2.b1: PWCod1hr CumSnow PWSAlarm CumH2O PWcod15mi InstPWCod Visibility, 1 minute average(AvgVis1mi) Precipitation Rate(PCPRate) CMHTemp Visibility, 10 minute average(AvgVis10m)

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