Data Quality Reports for Session: 185227 User: opersson1 Completed: 04/25/2017

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D150806.2NSA/MET/C1 - CMH offlinensametC1.b1Missing
D160715.2NSA/MET/C1 - Chilled mirror hygrometer noisensametC1.b1Suspect
D160715.3NSA/MET/C1 - Chilled mirror hygrometer data dropoutsnsametC1.b1Incorrect
D160729.8NSA/MET/C1 - Chilled mirror hygrometer missing datansametC1.b1Missing
D170120.10NSA/MET/C1 - Present weather detector reporting backscatter and hardware warningsnsametC1.b1Suspect
D170302.1NSA/MET/C1 - Present weather detector hardware errornsametC1.b1Incorrect


DQRID : D150806.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/03/2015093708/04/20151201Missing
Subject:
NSA/MET/C1 - CMH offline
DataStreams:nsametC1.b1
Description:
Moisture inside the power cable caused the instrument to go offline. The cable was 
replaced and data prior to the instrument self-check should not be used.
Measurements:nsametC1.b1:
  • cmh_dew_point
  • cmh_temp
  • cmh_vapor_pressure
  • cmh_rh
  • cmh_sat_vapor_pressure

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DQRID : D160715.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/14/2016120006/14/20162359Suspect
Subject:
NSA/MET/C1 - Chilled mirror hygrometer noise
DataStreams:nsametC1.b1
Description:
During this time, the chilled mirror hygrometer experiences periods of noisy humidity 
data, likely due to mirror contamination.
Measurements:nsametC1.b1:
  • cmh_dew_point
  • cmh_vapor_pressure
  • cmh_rh

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DQRID : D160715.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/22/2016095906/23/20162024Incorrect
07/03/2016190007/06/20160648Incorrect
05/21/2016103305/21/20161209Incorrect
06/17/2016100106/19/20160959Incorrect
Subject:
NSA/MET/C1 - Chilled mirror hygrometer data dropouts
DataStreams:nsametC1.b1
Description:
During these times, the chilled mirror hygrometer humidity data drops or remains stagnant 
below expected values.
Measurements:nsametC1.b1:
  • cmh_dew_point
  • cmh_vapor_pressure
  • cmh_rh

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DQRID : D160729.8
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/13/2016223207/15/20160037Missing
Subject:
NSA/MET/C1 - Chilled mirror hygrometer missing data
DataStreams:nsametC1.b1
Description:
Chilled mirror hygrometer data are missing during this time.
Measurements:nsametC1.b1:
  • cmh_dew_point
  • cmh_temp
  • cmh_vapor_pressure
  • cmh_rh
  • cmh_sat_vapor_pressure

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DQRID : D170120.10
Start DateStart TimeEnd DateEnd Time Data Quality Metric
12/23/2016001712/23/20162123Suspect
01/01/2017140301/06/20172339Suspect
Subject:
NSA/MET/C1 - Present weather detector reporting backscatter and hardware warnings
DataStreams:nsametC1.b1
Description:
The present weather detector diagnostics reported backscatter or hardware warnings during 
these times. Data are suspect or missing.
Measurements:nsametC1.b1:
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • pwd_err_code
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • pwd_pw_code_inst
  • pwd_pw_code_1hr
  • pwd_cumul_rain
  • pwd_pw_code_15min
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • pwd_cumul_snow

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DQRID : D170302.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/04/2017214202/05/20170124Incorrect
02/03/2017214402/03/20172151Incorrect
02/06/2017222102/07/20171821Incorrect
02/03/2017231102/03/20172311Incorrect
02/02/2017071502/02/20171610Incorrect
02/05/2017142302/06/20170154Incorrect
01/03/2017141101/04/20171433Incorrect
02/03/2017042702/03/20170427Incorrect
01/02/2017225001/03/20170057Incorrect
02/08/2017014903/01/20172340Incorrect
01/04/2017174901/04/20172336Incorrect
01/05/2017115901/06/20172339Incorrect
01/03/2017122201/03/20171245Incorrect
02/05/2017075102/05/20171252Incorrect
02/04/2017091302/04/20171816Incorrect
01/01/2017140301/02/20170606Incorrect
01/03/2017084901/03/20170918Incorrect
Subject:
NSA/MET/C1 - Present weather detector hardware error
DataStreams:nsametC1.b1
Description:
The present weather detector began reporting a hardware error (a bad connection of the 
rain sensor). The problem began intermittently, and then became constant after 2/8. 
Visibility data are not affected, except when the instrument was disconnected for maintenance 
(2/24 and 3/1, indicated by DQ values).
Measurements:nsametC1.b1:
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • pwd_pw_code_inst
  • pwd_pw_code_1hr
  • pwd_cumul_rain
  • pwd_pw_code_15min
  • pwd_cumul_snow

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