Data Quality Reports for Session: 180945 User: abdelhamida1 Completed: 11/01/2016

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D151201.2SGP ALL INSTRUMENTS - Icing EventsgpmetE13.b1Does not affect quality
D151218.8SGP/MET/E13 - Data suspect due to system power issuessgpmetE13.b1Suspect
D160104.7SGP Site Power Outage Due to Winter StormsgpmetE13.b1Does not affect quality
D160203.4SGP/MET/E13 - False tips in high windssgpmetE13.b1Does not affect quality


DQRID : D151201.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/27/2015000011/30/20152359Does not affect quality
Subject:
SGP ALL INSTRUMENTS - Icing Event
DataStreams:sgpmetE13.b1
Description:
An icing event (winter storm Cara) passed slowly through the area during this time frame.  
Instruments at the SGP may have been affected by ice accumulation.
Measurements:sgpmetE13.b1:
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • pwd_cumul_rain
  • logger_temp
  • Vapor pressure mean, calculated(vapor_pressure_mean)
  • temp_std
  • vapor_pressure_std
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • pwd_pw_code_15min
  • pwd_pw_code_1hr
  • tbrg_precip_total
  • pwd_pw_code_inst
  • Atmospheric pressure(atmos_pressure)
  • Humidity, relative, at 2-m height, 1-min avg(rh_mean)
  • Temperature mean(temp_mean)
  • wdir_vec_std
  • Wind speed vector mean(wspd_vec_mean)
  • pwd_cumul_snow
  • Wind direction vector mean(wdir_vec_mean)
  • rh_std
  • logger_volt
  • pwd_err_code
  • TBRG precipitation total, corrected(tbrg_precip_total_corr)

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DQRID : D151218.8
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/30/2015165412/04/20151516Suspect
Subject:
SGP/MET/E13 - Data suspect due to system power issues
DataStreams:sgpmetE13.b1
Description:
Issues with power supply to the system caused outages and suspect data during this time.
Measurements:sgpmetE13.b1:
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • pwd_cumul_rain
  • Vapor pressure mean, calculated(vapor_pressure_mean)
  • logger_temp
  • temp_std
  • vapor_pressure_std
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • pwd_pw_code_15min
  • tbrg_precip_total
  • pwd_pw_code_1hr
  • pwd_pw_code_inst
  • Atmospheric pressure(atmos_pressure)
  • Humidity, relative, at 2-m height, 1-min avg(rh_mean)
  • Temperature mean(temp_mean)
  • wdir_vec_std
  • Wind speed vector mean(wspd_vec_mean)
  • pwd_cumul_snow
  • Wind direction vector mean(wdir_vec_mean)
  • rh_std
  • logger_volt
  • TBRG precipitation total, corrected(tbrg_precip_total_corr)
  • pwd_err_code

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DQRID : D160104.7
Start DateStart TimeEnd DateEnd Time Data Quality Metric
12/26/2015000001/01/20162359Does not affect quality
Subject:
SGP Site Power Outage Due to Winter Storm
DataStreams:sgpmetE13.b1
Description:
On Saturday and Sunday, December 26 and 27th a powerful winter storm (Goliath) brought 
sleet and freezing rain to much of Oklahoma with wind gusts of 45 MPH at times. The result 
was very very slick roads and mass power outages.
 
The SGP central facility lost power at 8:55 PM CDT on Sunday, December 27th.  
The power was restored on 7:56 PM CDT on Wednesday, December 30th
 
Site Emergency procedures were activated and Technicians drained water out of instrument 
reservoirs and other measures as needed, early Monday morning.
 
On Wednesdays as roads and power started was restored to much of the areas east of I-35 , 
Site Technicians performed maintenance on several Extended Facilities.

During this period, data are potentially missing, incorrect, or suspect.  Carefully 
inspect the data before use.
Measurements:sgpmetE13.b1:
  • pwd_cumul_rain
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • Temperature mean(temp_mean)
  • qc_logger_volt
  • qc_temp_mean
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • qc_pwd_mean_vis_10min
  • temp_std
  • qc_rh_mean
  • pwd_pw_code_15min
  • qc_tbrg_precip_total_corr
  • qc_logger_temp
  • qc_pwd_mean_vis_1min
  • Wind speed vector mean(wspd_vec_mean)
  • Wind direction vector mean(wdir_vec_mean)
  • qc_pwd_cumul_rain
  • TBRG precipitation total, corrected(tbrg_precip_total_corr)
  • Vapor pressure mean, calculated(vapor_pressure_mean)
  • qc_pwd_pw_code_15min
  • logger_temp
  • vapor_pressure_std
  • qc_wdir_vec_mean
  • qc_pwd_pw_code_1hr
  • qc_pwd_precip_rate_mean_1min
  • pwd_pw_code_1hr
  • Humidity, relative, at 2-m height, 1-min avg(rh_mean)
  • qc_atmos_pressure
  • Altitude above mean sea level(alt)
  • pwd_cumul_snow
  • North latitude(lat)
  • qc_wspd_vec_mean
  • time_offset
  • qc_pwd_cumul_snow
  • pwd_err_code
  • East longitude(lon)
  • qc_tbrg_precip_total
  • qc_pwd_pw_code_inst
  • qc_vapor_pressure_mean
  • tbrg_precip_total
  • qc_time
  • pwd_pw_code_inst
  • Atmospheric pressure(atmos_pressure)
  • wdir_vec_std
  • time
  • base_time
  • qc_wspd_arith_mean
  • qc_wdir_vec_std
  • rh_std
  • logger_volt

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DQRID : D160203.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/21/1993000001/12/20161958Does not affect quality
Subject:
SGP/MET/E13 - False tips in high winds
DataStreams:sgpmetE13.b1
Description:
The TBRG's were mounted at a height that made them prone to vibrations caused by high 
winds which may have caused false tips.  The end date of this DQR indicates when the rain 
gauge was lowered to mitigate these effects.  

Effects on the total precipitation amounts are assumed to be negligible.
Measurements:sgpmetE13.b1:
  • tbrg_precip_total
  • TBRG precipitation total, corrected(tbrg_precip_total_corr)

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