Data Quality Reports for Session: 150557 User: ttaywhocke Completed: 06/03/2013

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D110217.1NSA/MET/C1 - CMH offlinensametC1.b1
D110602.2NSA/MET/C1 - CMH FailurensametC1.b1
D110722.2NSA/MET/C1 - Wind sensor data missingnsametC1.b1, nsatwrC1.b1
D111129.1NSA/MET/C1 - CMH communication failurensametC1.b1
D120105.2NSA/MET/C1 - Frosting/CondensationnsametC1.b1
D120423.1NSA/MET/C1 - CMH failurensametC1.b1


DQRID : D110217.1
Start DateStart TimeEnd DateEnd Time
01/24/2011180002/10/20112300
Subject:
NSA/MET/C1 - CMH offline
DataStreams:nsametC1.b1
Description:
Beginning 1/24/2011, the CMH went offline resulting in missing temperature and dewpoint 
measurements and erroneous vapor pressure, saturation vapor pressure, and RH measurements. 

Problem fixed with a power cycle.
Measurements:nsametC1.b1:
  • cmh_dew_point
  • cmh_temp
  • cmh_vapor_pressure
  • cmh_sat_vapor_pressure
  • cmh_rh

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DQRID : D110602.2
Start DateStart TimeEnd DateEnd Time
05/15/2011090005/28/20110010
Subject:
NSA/MET/C1 - CMH Failure
DataStreams:nsametC1.b1
Description:
The Chilled Mirror Hydrometer (CMH) developed a short in the wiring harness. All CMH data 
missing or incorrect during the period listed.
Measurements:nsametC1.b1:
  • cmh_dew_point
  • qc_cmh_dew_point
  • qc_cmh_rh
  • cmh_temp
  • cmh_vapor_pressure
  • qc_cmh_vapor_pressure
  • qc_cmh_sat_vapor_pressure
  • qc_cmh_temp
  • cmh_sat_vapor_pressure
  • cmh_rh

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DQRID : D110722.2
Start DateStart TimeEnd DateEnd Time
05/17/2011020007/20/20111823
Subject:
NSA/MET/C1 - Wind sensor data missing
DataStreams:nsametC1.b1, nsatwrC1.b1
Description:
2m, 10m, 20m wind sensors went off-line 5/17 due to GFCI tripping caused by failing CMH.   
The 2m and 20m data wind sensor returned 6/6, but the 10m remained offline until 7/20 as 
the sensor was damaged.
Measurements:nsametC1.b1:
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • Wind speed vector mean(wspd_vec_mean)
  • wdir_vec_std
  • Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
nsatwrC1.b1:
  • wdir_vec_std
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
  • Wind speed vector mean(wspd_vec_mean)

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DQRID : D111129.1
Start DateStart TimeEnd DateEnd Time
11/06/2011075811/19/20110800
Subject:
NSA/MET/C1 - CMH communication failure
DataStreams:nsametC1.b1
Description:
CMH lost communication with datalogger. All values from CMH were -6999 during this time 
resulting in the CMHRH flatlining at 100%. Communications was intermittent during entire 
time period.
Measurements:nsametC1.b1:
  • cmh_dew_point
  • cmh_temp
  • cmh_vapor_pressure
  • cmh_sat_vapor_pressure
  • cmh_rh

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DQRID : D120105.2
Start DateStart TimeEnd DateEnd Time
11/08/2011000002/22/20132035
Subject:
NSA/MET/C1 - Frosting/Condensation
DataStreams:nsametC1.b1
Description:
Beginning 20111108, the PWD began occasionally frosting over, signaling an alarm code and 
sometimes causing the PWD to stop reporting. A new PWD with hood heater attachment was 
installed 20130222.
Measurements:nsametC1.b1:
  • Rain, surface, 1-min avg(pws_precip_rate_mean_1min)
  • pws_cumul_snow
  • pws_pw_code_15min
  • PWS 10 minute mean visibility(pws_vis_mean_10min)
  • pws_pw_code_inst
  • pws_err_code
  • pws_cumul_rain
  • PWS 1 minute mean visibility(pws_vis_mean_1min)
  • pws_pw_code_1hr

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DQRID : D120423.1
Start DateStart TimeEnd DateEnd Time
12/07/2011221512/07/20112330
12/08/2011014512/08/20111345
12/25/2011030012/25/20110630
01/02/2012160001/03/20121900
01/05/2012033001/06/20120030
01/07/2012113001/08/20120100
01/08/2012073001/08/20120800
01/08/2012113001/09/20120000
01/14/2012080001/14/20121545
01/16/2012194501/17/20121945
01/18/2012180001/18/20121900
03/04/2012000003/04/20120200
12/04/2011130012/04/20111730
12/05/2011000012/05/20112100
12/05/2011213012/07/20110645
Subject:
NSA/MET/C1 - CMH failure
DataStreams:nsametC1.b1
Description:
Starting 14:17 GMT on 12/4/2011 the CMH Dew Point began reporting missing value, CMH 
relative humidity was flat-lining at 100% and CMH saturated vapor pressure was flat-lined at a 
high value.  This condition continued very intermittently for several months.  Issue was 
frosting and a failed ventilation fan.
Measurements:nsametC1.b1:
  • cmh_dew_point
  • cmh_temp
  • cmh_vapor_pressure
  • cmh_rh
  • cmh_sat_vapor_pressure

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