Data Quality Reports for Session: 119683 User: cpetrich Completed: 05/21/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D030301.1NSA/GNDRAD/C1 - No power to IRTnsagndrad60sC1.a1, nsagndrad60sC1.b1
D031216.1NSA/GNDRAD/C1 - IRT cable failurensagndrad60sC1.b1
D031216.2NSA/GNDRAD/C1 - IRT returned to vendornsagndrad60sC1.b1
D071018.2NSA/GNDRAD/C1 - Missing datansagndrad60sC1.b1
D071025.3NSA/GNDRAD/C1 - Reprocessed: Incorrect calibration coefficientnsagndrad20sC1.a0, nsagndrad60sC1.b1
D080904.5NSA/GNDRAD/C1 - Upwelling PIR ventilator fan failurensagndrad20sC1.a0, nsagndrad60sC1.b1
D080919.1NSA/GNDRAD/C1 - Net radiometer removednsagndrad60sC1.a1, nsagndrad60sC1.b1
D090209.2NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heated nsagndrad60sC1.b1


DQRID : D030301.1
Start DateStart TimeEnd DateEnd Time
09/24/2002172511/16/20020003
Subject:
NSA/GNDRAD/C1 - No power to IRT
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
The data logger failed to supply power to the IRT.
Measurements:nsagndrad60sC1.b1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)
nsagndrad60sC1.a1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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DQRID : D031216.1
Start DateStart TimeEnd DateEnd Time
05/27/2003140009/11/20031906
Subject:
NSA/GNDRAD/C1 - IRT cable failure
DataStreams:nsagndrad60sC1.b1
Description:
The IRT signal became very noisy and the problem was traced to the cable (after the 
instrument was returned to the vendor for diagnosis). The problem started occurring when ice 
surrounding the cable began to melt. The cable was repaired and the instrument reinstalled.
Measurements:nsagndrad60sC1.b1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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DQRID : D031216.2
Start DateStart TimeEnd DateEnd Time
09/11/2003190610/15/20030015
Subject:
NSA/GNDRAD/C1 - IRT returned to vendor
DataStreams:nsagndrad60sC1.b1
Description:
The IRT was returned to the vendor for diagnosis. It was found to be operating as expected 
and the signal noise problem was traced to the cable. The cable was repaired and the 
instrument reinstalled.
Measurements:nsagndrad60sC1.b1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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DQRID : D071018.2
Start DateStart TimeEnd DateEnd Time
07/27/1999215008/05/19992359
08/06/1999120808/07/19992359
10/03/1999000011/04/19992359
11/23/1999000011/28/19992359
01/28/2000000002/03/20002341
09/21/2000161909/24/20002258
03/15/2002205203/21/20021502
Subject:
NSA/GNDRAD/C1 - Missing data
DataStreams:nsagndrad60sC1.b1
Description:
Data are missing and unrecoverable.
Measurements:nsagndrad60sC1.b1:
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
    Deviation(up_long_hemisp_std)
  • Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
  • Instantaneous Upwelling Pyrgeometer Case Thermistor Temperature(inst_up_long_hemisp_case_temp)
  • base time(base_time)
  • Battery Voltage(vBatt)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard
    Deviation(up_short_hemisp_std)
  • lat(lat)
  • lon(lon)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)
  • Instantaneous Upwelling Pyrgeometer Dome Thermistor Temperature(inst_up_long_hemisp_dome_temp)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min)
  • Dummy altitude for Zeb(alt)
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
  • time(time)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • Time offset of tweaks from base_time(time_offset)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
  • Logger panel temperature(logger_temp)
  • Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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DQRID : D071025.3
Start DateStart TimeEnd DateEnd Time
10/04/2007013010/25/20072149
Subject:
NSA/GNDRAD/C1 - Reprocessed: Incorrect calibration coefficient
DataStreams:nsagndrad20sC1.a0, nsagndrad60sC1.b1
Description:
Installed Gndrad PSP (upwelling shortwave hemispheric irradiance) had calibration 
coefficient RS applied when it should have used Rsc.  ARM is using IR corrected coefficients 
Rsc@45 and CFc@45 for PSPs deployed at all facilities.  

PSP #32012F3 should use RSc@45=109.39 and not Rs@45=110.97.  

Reprocessed to correct upwelling shortwave hemispheric irradiance (US) by:
US(new) = (US(old) / 110.97 ) * 109.39

Reprocessing completed March 2008.
Measurements:nsagndrad20sC1.a0:
  • Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)
nsagndrad60sC1.b1:
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Minima(up_short_hemisp_min)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Standard
    Deviation(up_short_hemisp_std)
  • Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)

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DQRID : D080904.5
Start DateStart TimeEnd DateEnd Time
07/20/2008033009/15/20081930
Subject:
NSA/GNDRAD/C1 - Upwelling PIR ventilator fan failure
DataStreams:nsagndrad20sC1.a0, nsagndrad60sC1.b1
Description:
The PIR exhibited a positive bias of approximately 6 W/m2 compared to the upwelling IRT 
due to ventilator fan failure.  Thus, the up_long_hemisp, data stream is high by about 6 
W/m2.    
   
Bias is not consistent and depends on atmospheric conditions. Either disregard the 
up_long_hemisp data or use the IRT for an estimate of the up_long_hemisp values during this time 
period.
Measurements:nsagndrad20sC1.a0:
  • Instantaneous Upwelling Pyrgeometer Case Thermistor Resistance, Pyrgeometer(inst_up_long_hemisp_case_resist)
  • Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
  • Instantaneous Upwelling Pyrgeometer Dome Thermistor Resistance, Pyrgeometer(inst_up_long_hemisp_dome_resist)
nsagndrad60sC1.b1:
  • Instantaneous Upwelling Pyrgeometer Dome Thermistor Temperature(inst_up_long_hemisp_dome_temp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Standard
    Deviation(up_long_hemisp_std)
  • Instantaneous Upwelling Pyrgeometer Thermopile(inst_up_long_hemisp_tp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Maxima(up_long_hemisp_max)
  • Instantaneous Upwelling Pyrgeometer Case Thermistor Temperature(inst_up_long_hemisp_case_temp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer(up_long_hemisp)
  • Upwelling (10 meter) Longwave Hemispheric Irradiance, Pyrgeometer, Minima(up_long_hemisp_min)

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DQRID : D080919.1
Start DateStart TimeEnd DateEnd Time
02/03/2000000003/03/20032359
Subject:
NSA/GNDRAD/C1 - Net radiometer removed
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
The net radiometer was removed from the NSA.C1 GNDRAD instrument suite on Feb 3, 2000.  
Net rad variables were filled with garbage data until Sept 23, 2000 and with missing values 
(-9999) until 20041103.  The net rad variables were removed from the netcdf files after 
20041103.

A reprocessing task (RID-526) has been submitted to the queue to address the need to add 
metadata to the NSA.C1 GNDRAD netcdf files documenting the missing data as well as to move 
toward a consistent datastream format throughout time.
Measurements:nsagndrad60sC1.b1:
  • base time(base_time)
nsagndrad60sC1.a1:
  • NET standard deviation(net_sd)
  • NET mean(net_mean)
  • Net Radiation, Standard Deviation(net_std)
  • Net Radiation, Maxima(net_max)
  • Net Radiation, Minima(net_min)
  • Net Radiation(net)

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DQRID : D090209.2
Start DateStart TimeEnd DateEnd Time
03/01/1999000012/22/20002020
Subject:
NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heated
DataStreams:nsagndrad60sC1.b1
Description:
IRT had insufficient heating to maintain an internal reference temperature above 0 degrees 
C. Measurements of surface temperature were over-estimated when instrument was below 
freezing.

Data will be reprocessed, but users can correct data using the following correction 
factor:

If T_reference < -5?C, then

  IRT_corrected = (IRT_original - 32.993K)/0.87238

where T_reference can be estimated with the ambient temperature (e.g. 
inst_up_long_hemisp_dome_temp or inst_up_long_dome_temp)
Measurements:nsagndrad60sC1.b1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature, Standard Deviation(sfc_ir_temp_std)

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