Data Quality Reports for Session: 185300 User: malynn Completed: 05/01/2017


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D040722.2NSA/MET/TWR/C1 - Chilled Mirror transmit logic board chipset unsuited for Arctic
temperatures
nsametC1.b1Missing
D050527.2NSA/MET/C1 - Reprocessed: Incorrect Maximum for Precip ValuesnsametC1.b1Does not affect quality
D051025.2NSA/MET/C1 - Reprocessed: Variable specific time-offsetnsametC1.b1Does not affect quality


DQRID : D040722.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/01/2003000004/23/20041858Missing
Subject:
NSA/MET/TWR/C1 - Chilled Mirror transmit logic board chipset unsuited for Arctic 
temperatures
DataStreams:nsametC1.b1
Description:
Data missing due to problems with manufacturer's transmit logic board chipset.  They were 
generic chips not rated for Arctic temperatures.
Measurements:nsametC1.b1:
  • qc_pws_cumul_snow
  • qc_pws_pw_code_15min
  • qc_pws_precip_rate_mean_1min
  • qc_wspd_arith_mean
  • qc_pws_cumul_rain
  • qc_rh_mean
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • qc_wspd_vec_mean
  • pwd_pw_code_1hr
  • qc_atmos_pressure
  • qc_logger_temp
  • pws_cumul_rain
  • qc_pws_vis_mean_1min
  • qc_cmh_temp
  • pws_pw_code_15min
  • Wind speed vector mean(wspd_vec_mean)
  • qc_pwd_pw_code_inst
  • pwd_pw_code_inst
  • qc_pws_pw_code_1hr
  • qc_time
  • cmh_dew_point
  • dew_point_mean
  • qc_trh_err_code
  • pws_mean_vis_10min
  • pws_mean_vis_1min
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • pwd_cumul_snow
  • qc_pws_pw_code_inst
  • time
  • wdir_vec_std
  • qc_vapor_pressure_mean
  • qc_cmh_rh
  • cmh_temp
  • trh_err_code
  • logger_volt
  • North latitude(lat)
  • PWS 1 minute mean visibility(pws_vis_mean_1min)
  • pws_err_code
  • Atmospheric pressure(atmos_pressure)
  • qc_pwd_pw_code_1hr
  • pwd_pw_code_15min
  • vapor_pressure_std
  • cmh_vapor_pressure
  • pws_pw_code_1hr
  • pws_precip_rate_mean_1min
  • pws_cumul_snow
  • qc_pws_mean_vis_10min
  • temp_std
  • qc_temp_mean
  • pwd_cumul_rain
  • qc_pws_err_code
  • qc_cmh_vapor_pressure
  • qc_pws_vis_mean_10min
  • qc_cmh_sat_vapor_pressure
  • qc_pwd_cumul_rain
  • cmh_rh
  • Humidity, relative, at 2-m height, 1-min avg(rh_mean)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • PWS 10 minute mean visibility(pws_vis_mean_10min)
  • pwd_err_code
  • qc_pwd_pw_code_15min
  • qc_cmh_dew_point
  • qc_pwd_mean_vis_1min
  • Wind direction vector mean(wdir_vec_mean)
  • Altitude above mean sea level(alt)
  • qc_pws_mean_vis_1min
  • cmh_sat_vapor_pressure
  • qc_wdir_vec_mean
  • Temperature mean(temp_mean)
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • Vapor pressure mean, calculated(vapor_pressure_mean)
  • qc_logger_volt
  • pws_pw_code_inst
  • base_time
  • logger_temp
  • qc_pwd_mean_vis_10min
  • East longitude(lon)
  • qc_dew_point_mean
  • dew_point_std
  • time_offset
  • qc_pwd_precip_rate_mean_1min
  • rh_std
  • qc_pwd_cumul_snow


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DQRID : D050527.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/31/2003000005/26/20051014Does not affect quality
Subject:
NSA/MET/C1 - Reprocessed: Incorrect Maximum for Precip Values
DataStreams:nsametC1.b1
Description:
The max values for cumulative rain sum of 99 mm and the rain rate of 999 mm/hr were 
incorrectly reported.  The max values of the cumulative rain sum is 99.99 mm and the rain rate 
is 999.99 mm/hr.

The data were reprocessed to correct the error flagging; reprocessed data were archived in 
March 2011.
Measurements:nsametC1.b1:
  • pws_precip_rate_mean_1min
  • pwd_cumul_rain


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DQRID : D051025.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/31/2003000009/14/20051420Does not affect quality
Subject:
NSA/MET/C1 - Reprocessed: Variable specific time-offset
DataStreams:nsametC1.b1
Description:
Data from the Barometer, Chilled Mirror Hygrometer and the Present Weather Sensor were 
one-minute behind due to timing problems collecting data from the Serial Data Multiplexer 
that handled these sensors.

Time offset was corrected and reprocessed data were archived March 2011.
Measurements:nsametC1.b1:
  • cmh_dew_point
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • pws_err_code
  • Atmospheric pressure(atmos_pressure)
  • cmh_vapor_pressure
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • pws_pw_code_1hr
  • cmh_sat_vapor_pressure
  • pwd_cumul_snow
  • pws_precip_rate_mean_1min
  • pws_pw_code_15min
  • pwd_pw_code_inst
  • cmh_temp
  • pwd_cumul_rain
  • cmh_rh


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