Data Quality Reports for Session: 184172 User: aron1habte Completed: 03/10/2017


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D121003.1SGP/SIRS/E13 - Instrument problemsgpsirsE13.b1Suspect
D121003.2SGP/SIRS/E13 - Reprocessed: Incorrect UIR calibrationsgpsirsE13.b1Does not affect quality
D121211.1SGP/SIRS/E13 - Upwelling LW hemisp connectionsgpsirsE13.b1Incorrect
D130329.1SGP/SIRS/E13 - UIR Instrument problemsgpsirsE13.b1Incorrect
D151201.2SGP ALL INSTRUMENTS - Icing EventsgpsirsE13.b1Does not affect quality
D160104.7SGP Site Power Outage Due to Winter StormsgpsirsE13.b1Does not affect quality


DQRID : D121003.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/13/2012000009/20/20122045Suspect
Subject:
SGP/SIRS/E13 - Instrument problem
DataStreams:sgpsirsE13.b1
Description:
up_long_hemisp measurements are intermittant and remain so after extensive 
troubleshooting.  This problem will likly remain open ended until site ops can replace the cable which 
serves the up_long_hemisp instrument (i.e. the Eppley PIR).
Measurements:sgpsirsE13.b1:
  • up_long_hemisp_std
  • inst_up_long_case_temp
  • Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • inst_up_long_dome_temp
  • Upwelling longwave hemispheric net infrared(up_long_netir)
  • Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)


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DQRID : D121003.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/30/2012205809/20/20121852Does not affect quality
Subject:
SGP/SIRS/E13 - Reprocessed: Incorrect UIR calibration
DataStreams:sgpsirsE13.b1
Description:
For the time range specified the UIR had incorrect calibration coefficients applied.  The 
k1 coefficient applied was 0.25042 when it should have been 0.2558.  This resulted in the 
instrument under reporting up_long_hemsip by approximately 2.1%. 

Reprocessing completed 20121119
Measurements:sgpsirsE13.b1:
  • up_long_hemisp_std
  • inst_up_long_case_temp
  • Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • inst_up_long_dome_temp
  • Upwelling longwave hemispheric net infrared(up_long_netir)
  • Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)


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DQRID : D121211.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
10/25/2012085011/21/20121540Incorrect
Subject:
SGP/SIRS/E13 - Upwelling LW hemisp connection
DataStreams:sgpsirsE13.b1
Description:
On 10/25 an intermittent problem began on the up_long_hemispheric (UIR) instrument dome 
thermistor which resulted in incorrect or missing calculated flux.  Maintenance tightened 
connections on 11/21 which appears to have resolved the problem.
Measurements:sgpsirsE13.b1:
  • up_long_hemisp_std
  • inst_up_long_case_temp
  • Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • inst_up_long_dome_temp
  • Upwelling longwave hemispheric net infrared(up_long_netir)
  • Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)


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DQRID : D130329.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/30/2013000003/26/20132122Incorrect
Subject:
SGP/SIRS/E13 - UIR Instrument problem
DataStreams:sgpsirsE13.b1
Description:
Due to a bad connection the up_long_hemisp datastream (upwelling Epply PIR instrument) has 
intermittent missing data during the time range specified.

Missing data are not recoverable.  However, the sgpqcrad1longE13.c1 datastream adequately 
identifies missing values and removes them.  Recommendation to the user is to use this 
VAP datastream for valid values of up_long_hemisp irradiance from this station.
Measurements:sgpsirsE13.b1:
  • up_long_hemisp_std
  • inst_up_long_case_temp
  • Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • inst_up_long_dome_temp
  • Upwelling longwave hemispheric net infrared(up_long_netir)
  • Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)


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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:sgpsirsE13.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:sgpsirsE13.b1:
  • inst_down_long_shaded_case_temp
  • Irradiance, shortwave, downwelling, hemispheric, pyranometer, mifkba(down_short_hemisp_min)
  • up_long_hemisp_std
  • Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer(down_short_diffuse_hemisp)
  • Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, minima(down_short_diffuse_hemisp_min)
  • Upwelling shortwave hemispheric irradiance, pyranometer(up_short_hemisp)
  • Shortwave Direct Normal Irradiance(short_direct_normal)
  • up_short_hemisp_std
  • vBatt
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • down_short_diffuse_hemisp_std
  • Irradiance, shortwave, direct normal, pyrheliometer, mifkba(short_direct_normal_min)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • inst_down_long_shaded_dome_temp
  • Downwelling shortwave hemispheric irradiance, pyranometer(down_short_hemisp)
  • down_short_hemisp_std
  • Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, maxima(down_short_diffuse_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima(down_short_hemisp_max)
  • Downwelling longwave hemispheric net infrared(down_long_netir)
  • Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp)
  • Upwelling longwave hemispheric net infrared(up_long_netir)
  • Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • Irradiance, longwave, downwelling, hemispheric, shaded pyrgeometer(down_long_hemisp_shaded)
  • down_long_hemisp_shaded_std
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • short_direct_normal_std
  • inst_up_long_case_temp
  • inst_up_long_dome_temp


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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:sgpsirsE13.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:sgpsirsE13.b1:
  • inst_down_long_shaded_case_temp
  • Irradiance, shortwave, downwelling, hemispheric, pyranometer, mifkba(down_short_hemisp_min)
  • up_long_hemisp_std
  • Upwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer(down_short_diffuse_hemisp)
  • Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, minima(down_short_diffuse_hemisp_min)
  • East longitude(lon)
  • Upwelling shortwave hemispheric irradiance, pyranometer(up_short_hemisp)
  • Shortwave Direct Normal Irradiance(short_direct_normal)
  • up_short_hemisp_std
  • North latitude(lat)
  • vBatt
  • Downwelling Longwave Hemispheric Irrad., Shaded Ventilated Pyrgeometer, Minima(down_long_hemisp_shaded_min)
  • down_short_diffuse_hemisp_std
  • Irradiance, shortwave, direct normal, pyrheliometer, mifkba(short_direct_normal_min)
  • Altitude above mean sea level(alt)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • inst_down_long_shaded_dome_temp
  • time_offset
  • Downwelling shortwave hemispheric irradiance, pyranometer(down_short_hemisp)
  • down_short_hemisp_std
  • Downwelling Shortwave Hemispheric Irradiance, Pyranometer, Maxima(down_short_hemisp_max)
  • Irradiance, shortwave, downwelling, diffuse, hemispheric, pyranometer, maxima(down_short_diffuse_hemisp_max)
  • Downwelling longwave hemispheric net infrared(down_long_netir)
  • Upwelling longwave hemispheric irradiance, pyrgeometer(up_long_hemisp)
  • Upwelling longwave hemispheric net infrared(up_long_netir)
  • base_time
  • Upwelling Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • Irradiance, longwave, downwelling, hemispheric, shaded pyrgeometer(down_long_hemisp_shaded)
  • down_long_hemisp_shaded_std
  • Downwelling Longwave Hemispheric Irradiance, Shaded Pyrgeometer, Maxima(down_long_hemisp_shaded_max)
  • short_direct_normal_std
  • inst_up_long_case_temp
  • inst_up_long_dome_temp


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END OF DATA