Data Quality Reports for Session: 144428 User: cian Completed: 08/24/2012


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D021211.10NSA/GNDRAD/C1 - Unreasonable/missing PIR data due to maintenancensagndrad60sC1.a1
D021211.11NSA/GNDRAD/C1 - Noisy PIR Datansagndrad60sC1.a1
D021211.12NSA/GNDRAD/C1 - Noisy PIR Datansagndrad60sC1.a1, nsagndrad60sC1.b1
D021211.13NSA/GNDRAD/C1 - PIR1 Calibration problems resulted in small errornsagndrad60sC1.a1
D021211.2NSA/GNDRAD/C1 - IRT instrument maintenancensagndrad60sC1.a1, nsagndrad60sC1.b1
D021211.6NSA/GNDRAD/C1 - IRT data noisynsagndrad60sC1.a1, nsagndrad60sC1.b1
D021211.8NSA/GNDRAD/C1 - PIR offlinensagndrad60sC1.a1
D021211.9NSA/GNDRAD/C1 - Instrument maintenancensagndrad60sC1.a1
D021212.1NSA/GNDRAD/C1 - Instrument Maintenancensagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.10NSA/GNDRAD/C1 - Unreasonable PSP Datansagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.2NSA/GNDRAD/C1 - PSP erroneously replaced by B&Wnsagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.3NSA/GNDRAD/C1 - Instrument maintenancensagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.4NSA/GNDRAD/C1 - Bad calibrations appliednsagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.5NSA/GNDRAD/C1 - Bad PSP calibrations appliednsagndrad60sC1.a1
D021212.6NSA/GNDRAD/C1 - Unexplained decrease in PSP and NET data valuesnsagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.7NSA/GNDRAD/C1 - Data corrupted by brief spikensagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.8NSA/GNDRAD/C1 - Rad instruments shaded by shelternsagndrad60sC1.a1, nsagndrad60sC1.b1
D021212.9NSA/GNDRAD/C1 - PSP Data corrupted by brief spikensagndrad60sC1.a1, nsagndrad60sC1.b1
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
D040919.1NSA/GNDRAD/C1 - IRT power failurensagndrad60sC1.b1
D041013.3NSA/GNDRAD/C1 - Frosting/Condensationnsagndrad20sC1.a1, nsagndrad60sC1.b1, nsagndradC1.00
D050629.1NSA/GNDRAD/C1/C2 - Upwelling Shortwave data flagged bad are good.nsagndrad60sC1.b1, nsagndrad60sC2.b1
D050825.3NSA/GNDRAD/C1 - Power Disconnected Brieflynsagndrad60sC1.b1
D060209.4NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensorsnsagndrad20sC1.a0, nsagndrad60sC1.b1, nsagndradC1.00
D060630.39NSA/GNDRAD/C1 - Reprocess: Longwave Calibration errornsagndrad60sC1.b1
D060824.1NSA/GNDRAD/C1 - Incorrect calibration coefficientsnsagndrad20sC1.a0, nsagndrad20sC1.a1, nsagndrad60sC1.b1, nsagndradC1.00
D071010.1NSA/GNDRAD/C1 - Preventive maintenancensagndrad20sC1.a0, nsagndrad60sC1.b1
D071018.2NSA/GNDRAD/C1 - Missing datansagndrad60sC1.b1
D071025.3NSA/GNDRAD/C1 - Reprocessed: Incorrect calibration coefficientnsagndrad20sC1.a0, nsagndrad60sC1.b1
D080725.1NSA/GNDRAD/C1 - IRT not connectednsagndrad60sC1.a1
D080725.2NSA/GNDRAD/C1 - Reprocess: IRT scale factornsagndrad60sC1.a1
D080726.1NSA/GNDRAD/C1 - IRT failednsagndrad60sC1.a1
D080728.1NSA/GNDRAD/C1 - IRT incorrectnsagndrad60sC1.a1
D080729.2NSA/GNDRAD/C1 - IRT scale factornsagndrad60sC1.a1
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
D110513.9NSA/QCRAD/C1 - Incorrect value of solar zenith anglensaqcrad1longC1.c1, nsaqcrad1longC1.s1
D110817.5NSA/GNDRAD/C1 - Reprocessed: Miscalibrated upwelling SWnsagndrad20sC1.a0, nsagndrad60sC1.b1
D110902.2NSA/GNDRAD/C1 - Incorrect data during power outagensagndrad20sC1.a0, nsagndrad60sC1.b1
D990924.1NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heatednsagndrad60sC1.a1


DQRID : D021211.10
Start DateStart TimeEnd DateEnd Time
01/19/1999183001/20/19992359
Subject:
NSA/GNDRAD/C1 - Unreasonable/missing PIR data due to maintenance
DataStreams:nsagndrad60sC1.a1
Description:
During this period, there are data gaps and the data that were
collected are unreasonable.  Instrument maintenance was being
performed
Measurements:nsagndrad60sC1.a1:
  • psp1_mean
  • psp1_sd
  • net_std
  • net_max
  • psp1_min
  • psp1_max
  • pir1_sd
  • pir1_max
  • pir1_min
  • net_mean
  • pir1_mean
  • net_min
  • net
  • net_sd


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DQRID : D021211.11
Start DateStart TimeEnd DateEnd Time
09/01/1998000002/28/19992359
Subject:
NSA/GNDRAD/C1 - Noisy PIR Data
DataStreams:nsagndrad60sC1.a1
Description:
During the period referenced, the ground PIR was noisy in comparison to the sky PIR data.  
At the end of November, the noise increased to roughly 10 W/m2 from peak to peak.  After 
12/23/98, the noise decreased in amplitude but still had noisy patterns.  

On 01/17-18/99, there was an increase again in the noise level (4 GMT 01/17 - 5 GMT 
01/18). During this period the gndrad IRT data also exhibited noise patterns (the IRT was not 
operational).

In February, the instrument exhibited large noise variations again.  On 02/16, a wiring 
problem was corrected and the noise dropped back to 1-5 W/m2.  However, the noise levels 
began to increase again.
Measurements:nsagndrad60sC1.a1:
  • pir1_sd
  • pir1_max
  • pir1_min
  • pir1_mean


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DQRID : D021211.12
Start DateStart TimeEnd DateEnd Time
03/01/1999000012/31/20002359
Subject:
NSA/GNDRAD/C1 - Noisy PIR Data
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
During the period referenced, the ground PIR was noisy in  
              comparison to the the sky PIR data.  (Note U021211.1 documents
              same problem for 9/1/98-2/28/99)

              The noise problem continued after the GNDRAD data logger was 
              replaced in late September. Particularly strong examples of the 
              noise can be seen in data from 11/10 - 11/19/99. The peak to 
              peak noise reaches 12 W/m2.
Measurements:nsagndrad60sC1.b1:
  • pir1_mean
  • pir1_max
  • pir1_sd
  • pir1_min

nsagndrad60sC1.a1:
  • pir1_sd
  • pir1_max
  • pir1_min
  • pir1_mean


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DQRID : D021211.13
Start DateStart TimeEnd DateEnd Time
12/08/1998205112/15/19981200
Subject:
NSA/GNDRAD/C1 - PIR1 Calibration problems resulted in small error
DataStreams:nsagndrad60sC1.a1
Description:
The dome correction coefficients were not properly reset in calibration file until the 
early morning of 12/15. These errors probably account for less than 4% in error.
Measurements:nsagndrad60sC1.a1:
  • pir1_max
  • pir1_sd
  • pir1_min
  • pir1_mean


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DQRID : D021211.2
Start DateStart TimeEnd DateEnd Time
09/15/1999172009/15/19992000
Subject:
NSA/GNDRAD/C1 - IRT instrument maintenance
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
IRT offline while instrument cable was being rebuilt.  Data are bad.
Measurements:nsagndrad60sC1.b1:
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)

nsagndrad60sC1.a1:
  • irt1_max
  • irt1_min
  • irt1_sd
  • irt1_mean


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DQRID : D021211.6
Start DateStart TimeEnd DateEnd Time
12/10/1999000012/29/20001859
Subject:
NSA/GNDRAD/C1 - IRT data noisy
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
After re-installation of the IRT on 12/10/99, the data are noisy. Source of the noise is 
believed to be the heater connected directly to the IRT.  Instrument was taken offline on 
12/30/1999 and shipped back to PNNL for repair/testing.
Measurements:nsagndrad60sC1.b1:
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)

nsagndrad60sC1.a1:
  • irt1_max
  • irt1_min
  • irt1_sd
  • irt1_mean


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DQRID : D021211.8
Start DateStart TimeEnd DateEnd Time
02/16/1999003002/16/19992000
02/17/1999000002/17/19990100
Subject:
NSA/GNDRAD/C1 - PIR offline
DataStreams:nsagndrad60sC1.a1
Description:
The PIR was taken off line during this period; data recorded 
              during this period are garbage.
Measurements:nsagndrad60sC1.a1:
  • pir1_sd
  • pir1_max
  • pir1_min
  • pir1_mean


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DQRID : D021211.9
Start DateStart TimeEnd DateEnd Time
12/08/1998203012/08/19982050
Subject:
NSA/GNDRAD/C1 - Instrument maintenance
DataStreams:nsagndrad60sC1.a1
Description:
Instrument replaced. Data affected by the work done during this time.
Measurements:nsagndrad60sC1.a1:
  • pir1_sd
  • pir1_max
  • pir1_min
  • pir1_mean


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DQRID : D021212.1
Start DateStart TimeEnd DateEnd Time
06/13/2001210006/13/20012200
Subject:
NSA/GNDRAD/C1 - Instrument Maintenance
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
Tip tower was lowered for instrument maintenance.  Data taken 
              during this period are corrupt.
Measurements:nsagndrad60sC1.b1:
  • psp1_min
  • psp1_max
  • psp1_sd
  • psp1_mean

nsagndrad60sC1.a1:
  • psp1_mean
  • psp1_sd
  • psp1_min
  • psp1_max


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DQRID : D021212.10
Start DateStart TimeEnd DateEnd Time
03/03/1999120003/03/19991515
Subject:
NSA/GNDRAD/C1 - Unreasonable PSP Data
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
During the darkness in the middle of this night, the PSP had a
              signal of 15 W/m2 over a three hour long period.  Cause unknown.
Measurements:nsagndrad60sC1.b1:
  • psp1_min
  • psp1_max
  • psp1_sd
  • psp1_mean

nsagndrad60sC1.a1:
  • psp1_mean
  • psp1_sd
  • psp1_min
  • psp1_max


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DQRID : D021212.2
Start DateStart TimeEnd DateEnd Time
06/13/2001230006/21/20011800
Subject:
NSA/GNDRAD/C1 - PSP erroneously replaced by B&W
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
The PSP was erroneously replaced with a B&W on 6/13 and then 
              changed back to the PSP on 6/21. Data should still be good since
              appropriate calibration factors were applied.
Measurements:nsagndrad60sC1.b1:
  • psp1_min
  • psp1_max
  • psp1_sd
  • psp1_mean

nsagndrad60sC1.a1:
  • psp1_mean
  • psp1_sd
  • psp1_min
  • psp1_max


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DQRID : D021212.3
Start DateStart TimeEnd DateEnd Time
06/21/2001180006/21/20011830
Subject:
NSA/GNDRAD/C1 - Instrument maintenance
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
The tip tower was lowered for instrument maintenance.  Data
              recorded are garbage.
Measurements:nsagndrad60sC1.b1:
  • psp1_min
  • psp1_max
  • psp1_sd
  • psp1_mean

nsagndrad60sC1.a1:
  • psp1_mean
  • psp1_sd
  • psp1_min
  • psp1_max


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DQRID : D021212.4
Start DateStart TimeEnd DateEnd Time
11/08/2001010011/09/20010300
Subject:
NSA/GNDRAD/C1 - Bad calibrations applied
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
Bad data due to erroneous calibration constant in configuration 
              file
Measurements:nsagndrad60sC1.b1:
  • pir1_mean
  • psp1_sd
  • pir1_sd
  • psp1_min
  • psp1_max
  • psp1_mean
  • pir1_max
  • pir1_min

nsagndrad60sC1.a1:
  • psp1_mean
  • psp1_sd
  • psp1_min
  • psp1_max
  • pir1_max
  • pir1_sd
  • pir1_min
  • pir1_mean


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DQRID : D021212.5
Start DateStart TimeEnd DateEnd Time
01/21/1999000002/09/19992359
Subject:
NSA/GNDRAD/C1 - Bad PSP calibrations applied
DataStreams:nsagndrad60sC1.a1
Description:
The ground radiation data are bad during this period due to 
              erroneous calibration factors in the logger configuration file.
Measurements:nsagndrad60sC1.a1:
  • psp1_mean
  • psp1_sd
  • net_std
  • net_max
  • psp1_min
  • psp1_max
  • pir1_max
  • pir1_sd
  • pir1_min
  • net_mean
  • pir1_mean
  • net_min
  • net
  • net_sd


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DQRID : D021212.6
Start DateStart TimeEnd DateEnd Time
04/27/1999233004/27/19992335
04/28/1999192004/28/19991930
Subject:
NSA/GNDRAD/C1 - Unexplained decrease in PSP and NET data values
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
100 W/m2 dip in the PSP data; NET data also affected. Possibly 
              due to operators working around the instruments.
Measurements:nsagndrad60sC1.b1:
  • net
  • net_min
  • psp1_sd
  • net_std
  • net_mean
  • net_sd
  • net_max
  • psp1_min
  • psp1_max
  • psp1_mean

nsagndrad60sC1.a1:
  • psp1_mean
  • psp1_sd
  • net_std
  • net_max
  • psp1_min
  • psp1_max
  • net_mean
  • net_min
  • net
  • net_sd


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DQRID : D021212.7
Start DateStart TimeEnd DateEnd Time
03/13/1999194503/13/19991955
Subject:
NSA/GNDRAD/C1 - Data corrupted by brief spike
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
There is a unreasonable spike at this time. Simultaneous spikes on the NET, the PSP, and 
the PIR. Cause unknown, but most likely related to data logger.
Measurements:nsagndrad60sC1.b1:
  • net
  • psp1_sd
  • net_std
  • net_mean
  • net_max
  • psp1_mean
  • pir1_max
  • net_min
  • pir1_mean
  • pir1_sd
  • net_sd
  • psp1_min
  • psp1_max
  • pir1_min

nsagndrad60sC1.a1:
  • net_max
  • psp1_min
  • pir1_max
  • net_mean
  • net_min
  • psp1_mean
  • psp1_sd
  • net_std
  • psp1_max
  • pir1_sd
  • pir1_min
  • pir1_mean
  • net
  • net_sd


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DQRID : D021212.8
Start DateStart TimeEnd DateEnd Time
03/08/1999000009/30/19992359
Subject:
NSA/GNDRAD/C1 - Rad instruments shaded by shelter
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
Each day around 02:00 - 03:30 GMT there is a unexpected decrease 
              for the PSP irradiance measurement due to a shading problem 
              associated with the swing set location relative to the instrument 
              shelter.  The GNDRAD NET and MFR instrument data also reflects 
              this problem.  Problem was resolved when the GNDRAD instruments 
              were moved to the 10 meter tip tower.
Measurements:nsagndrad60sC1.b1:
  • net
  • psp1_sd
  • net_std
  • net_mean
  • net_max
  • psp1_mean
  • pir1_max
  • net_min
  • pir1_mean
  • pir1_sd
  • net_sd
  • psp1_min
  • psp1_max
  • pir1_min

nsagndrad60sC1.a1:
  • net_max
  • psp1_min
  • pir1_max
  • net_mean
  • net_min
  • psp1_mean
  • psp1_sd
  • net_std
  • psp1_max
  • pir1_sd
  • pir1_min
  • pir1_mean
  • net
  • net_sd


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DQRID : D021212.9
Start DateStart TimeEnd DateEnd Time
11/07/2001210011/07/20012105
Subject:
NSA/GNDRAD/C1 - PSP Data corrupted by brief spike
DataStreams:nsagndrad60sC1.a1, nsagndrad60sC1.b1
Description:
Large unreasonable narrow spike in PSP data; cause not known.
Measurements:nsagndrad60sC1.b1:
  • psp1_min
  • psp1_max
  • psp1_sd
  • psp1_mean

nsagndrad60sC1.a1:
  • psp1_mean
  • psp1_sd
  • psp1_min
  • psp1_max


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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 Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)

nsagndrad60sC1.a1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • sfc_ir_temp_std
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)


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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 Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)


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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 Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)


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DQRID : D040919.1
Start DateStart TimeEnd DateEnd Time
09/15/2004000009/22/20040552
Subject:
NSA/GNDRAD/C1 - IRT power failure
DataStreams:nsagndrad60sC1.b1
Description:
After performing corrective maintenance which involved turning off power to the GNDRAD 
instruments and data logger, power to the IRT was not restored. The problem was corrected by 
replacing the data logger.
Measurements:nsagndrad60sC1.b1:
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)


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DQRID : D041013.3
Start DateStart TimeEnd DateEnd Time
10/09/2004000010/15/20042359
Subject:
NSA/GNDRAD/C1 - Frosting/Condensation
DataStreams:nsagndrad20sC1.a1, nsagndrad60sC1.b1, nsagndradC1.00
Description:
The GNDRAD PIR and IRT comparison was showing the IRT 2-4 W/m^2 greater than the PIR.  
Suspected snow or frost on the instrument(s).  Corrective maintenance performed 10/15/04 at 
21:30 UT.  Optics of both instruments were cleaned.  Upwelling longwave measurement 
agreement restored (+/- 5 W/^2).

Although the relative performance (agreement) of the two instruments improved after 
corrective maintenance (+/- 2 W/m^2), no correction is suggested because the agreement remains 
with the estimated measurement uncertainty of +/- 4 W/m^2 (IRT) and +/-10 W/m^2 (Inverted 
PIR)
Measurements:nsagndrad60sC1.b1:
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • net_std
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • up_long_hemisp_std
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)

nsagndradC1.00:
  • Raw data stream - documentation not supported

nsagndrad20sC1.a1:
  • pir1_case_therm
  • inst_up_long_hemisp_tp
  • inst_up_long_case_resist
  • pir1_dome_therm
  • pir1_voltage
  • inst_up_long_dome_resist


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DQRID : D050629.1
Start DateStart TimeEnd DateEnd Time
04/01/2005000004/30/20052359
Subject:
NSA/GNDRAD/C1/C2 - Upwelling Shortwave data flagged bad are good.
DataStreams:nsagndrad60sC1.b1, nsagndrad60sC2.b1
Description:
The Upwelling Shortwave at both NSA facilites, C1 and C2, have been flagged red by the 
automatic tests because it is above empiical limits determined for a more southerly site 
(SGP) for this time of year. The data are good and should be flagged green. The test limits 
will be revised for NSA.
Measurements:nsagndrad60sC1.b1:
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)

nsagndrad60sC2.b1:
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)


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DQRID : D050825.3
Start DateStart TimeEnd DateEnd Time
08/24/2005003008/24/20050030
Subject:
NSA/GNDRAD/C1 - Power Disconnected Briefly
DataStreams:nsagndrad60sC1.b1
Description:
Power to the Tip tower and Groundrad was disconnected briefly while ground resistance 
measurements were made. 

The following comments are from Inst. Mentor Tom Stoffel: 

The longwave and shortwave irradiances from GNDRAD were not effected by the
temporary power disconnect.  Data are good.  This would have only stopped
the ventilators for a brief time and the data do not show any signs of poor
instrument responses.

The "sfc_ir_temp" data were, however, impacted during the brief (2
readings?) interval.
Measurements:nsagndrad60sC1.b1:
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • external_voltage


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DQRID : D060209.4
Start DateStart TimeEnd DateEnd Time
02/07/2006091002/07/20062350
Subject:
NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors
DataStreams:nsagndrad20sC1.a0, nsagndrad60sC1.b1, nsagndradC1.00
Description:
During the power outage the upwelling global measurement from the PSP instrument shows a 
slight increase from -5 to +0 W/m2.  This is due to removal of thermal offsets induced by 
the AC heater during the power outage.  This heater is installed within the PSP 
ventilator - it is necessary for the NSA/C1 climate.
The upwelling longwave PIR instrument is unaffected due to case and dome temperature 
corrections.
The IRT is AC powered and was not operational during this time period.
Measurements:nsagndrad60sC1.b1:
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
  • up_short_hemisp_std
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)

nsagndradC1.00:
  • Raw data stream - documentation not supported

nsagndrad20sC1.a0:
  • inst_sfc_ir_signal


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DQRID : D060630.39
Start DateStart TimeEnd DateEnd Time
11/04/2004160012/21/20051855
Subject:
NSA/GNDRAD/C1 - Reprocess: Longwave Calibration error
DataStreams:nsagndrad60sC1.b1
Description:
Modified pyrgeometer calibration procedures were implemented beginning in December 2003.  
These modified procedures introduced a calibration bias in the longwave data.  The 
previous procedures were re-implemented at all sites between December 2005 and February 2006 to 
restore proper calibrations.                                                             
                The data collected while the incorrect procedures were in place are 
being reprocessing to remove the calibration bias.  Note, this also affected standard 
deviation, maximum and minimum data fields.
Measurements:nsagndrad60sC1.b1:
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)


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DQRID : D060824.1
Start DateStart TimeEnd DateEnd Time
08/11/2006193008/25/20061859
Subject:
NSA/GNDRAD/C1 - Incorrect calibration coefficients
DataStreams:nsagndrad20sC1.a0, nsagndrad20sC1.a1, nsagndrad60sC1.b1, nsagndradC1.00
Description:
BarrowC1, Gndrad. On Aug 11th the PSP-US was changed out and the Campbell program was 
changed to reflect this.  However, an old program that uses the 4 coefficient PIR cal factors 
was used. The PIR-UIR was not changed out, however, the logger program coeffs reverted 
back to the 4 Coeffcients.  The Eppley PIR-UIR coefficients for this S/N 30168F3 are :  
K0=0.0, K1(aka k)=.25253, K2= 1.0, K3=-4, Kr=0.0.
Measurements:nsagndrad60sC1.b1:
  • net_min
  • pir1_mean
  • net_std
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • pir1_sd
  • net_mean
  • net_sd
  • up_long_hemisp_std
  • net_max
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • pir1_max
  • pir1_min

nsagndradC1.00:
  • Raw data stream - documentation not supported

nsagndrad20sC1.a1:
  • pir1_case_therm
  • inst_up_long_hemisp_tp
  • inst_up_long_case_resist
  • pir1_dome_therm
  • pir1_voltage
  • inst_up_long_dome_resist

nsagndrad20sC1.a0:
  • inst_up_long_dome_resist
  • inst_up_long_hemisp_tp
  • inst_up_long_case_resist


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DQRID : D071010.1
Start DateStart TimeEnd DateEnd Time
10/02/2007230010/04/20070145
Subject:
NSA/GNDRAD/C1 - Preventive maintenance
DataStreams:nsagndrad20sC1.a0, nsagndrad60sC1.b1
Description:
Preventive maintenance including ventilator repairs and instrument changeout during this 
time resulted in data that are not scientifically relevant.
Measurements:nsagndrad60sC1.b1:
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • psp1_sd
  • net_std
  • net_mean
  • net_max
  • up_long_hemisp_std
  • psp1_mean
  • pir1_max
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
  • up_short_hemisp_std
  • net_min
  • pir1_mean
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • pir1_sd
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • net_sd
  • psp1_min
  • psp1_max
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
  • pir1_min

nsagndrad20sC1.a0:
  • inst_up_long_dome_resist
  • inst_up_short_hemisp
  • inst_up_long_hemisp_tp
  • inst_up_long_case_resist


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DQRID : D071018.2
Start DateStart TimeEnd DateEnd Time
11/23/1999000011/28/19992359
01/28/2000000002/03/20002341
09/21/2000161909/24/20002258
03/15/2002205203/21/20021502
07/27/1999215008/05/19992359
08/06/1999120808/07/19992359
10/03/1999000011/04/19992359
Subject:
NSA/GNDRAD/C1 - Missing data
DataStreams:nsagndrad60sC1.b1
Description:
Data are missing and unrecoverable.
Measurements:nsagndrad60sC1.b1:
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • up_short_hemisp_std
  • inst_up_long_hemisp_tp
  • alt
  • lon
  • inst_up_long_hemisp_case_temp
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • vBatt
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)
  • base_time
  • inst_up_long_hemisp_dome_temp
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • up_long_hemisp_std
  • lat
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • logger_temp
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
  • time
  • time_offset


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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:nsagndrad60sC1.b1:
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
  • up_short_hemisp_std
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)

nsagndrad20sC1.a0:
  • inst_up_short_hemisp


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DQRID : D080725.1
Start DateStart TimeEnd DateEnd Time
12/10/1998220001/20/19990059
Subject:
NSA/GNDRAD/C1 - IRT not connected
DataStreams:nsagndrad60sC1.a1
Description:
The IRT was unplugged from the Zeno data logger on 12/10/1998 for a interference test and 
when it was plugged back in on 12/22, the connector at the data logger was damaged. The 
data logger and connecter were replaced on 1/20/1999.
Measurements:nsagndrad60sC1.a1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • sfc_ir_temp_std
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)


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DQRID : D080725.2
Start DateStart TimeEnd DateEnd Time
01/20/1999010003/04/19991506
Subject:
NSA/GNDRAD/C1 - Reprocess: IRT scale factor
DataStreams:nsagndrad60sC1.a1
Description:
The IRT scale factors in the data logger were incorrectly set to m = 100 degC/V, b = -60 
degC. They were corrected to 25 degC/V and -50 degC.

Correct with: IRT(C) = (IRT_bad+60C)*(25/100) - 50C
Measurements:nsagndrad60sC1.a1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • sfc_ir_temp_std
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)


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DQRID : D080726.1
Start DateStart TimeEnd DateEnd Time
02/09/1999213803/03/19991200
Subject:
NSA/GNDRAD/C1 - IRT failed
DataStreams:nsagndrad60sC1.a1
Description:
The IRT failed and was replaced with one installed inside an insulated enclosure.
Measurements:nsagndrad60sC1.a1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • sfc_ir_temp_std
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)


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DQRID : D080728.1
Start DateStart TimeEnd DateEnd Time
04/06/1998000005/13/19982152
Subject:
NSA/GNDRAD/C1 - IRT incorrect
DataStreams:nsagndrad60sC1.a1
Description:
The IRT data were very noisy and unrepresentative.
Measurements:nsagndrad60sC1.a1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • sfc_ir_temp_std
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)


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DQRID : D080729.2
Start DateStart TimeEnd DateEnd Time
05/13/1998215206/04/19982208
Subject:
NSA/GNDRAD/C1 - IRT scale factor
DataStreams:nsagndrad60sC1.a1
Description:
The IRT scale factors in the data logger were incorrectly set to m = 100 degC/V, b = -60 
degC. They were corrected to 25 degC/V and -50 degC.
Measurements:nsagndrad60sC1.a1:
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • sfc_ir_temp_std
  • Effective Surface (Skin) Temperature(sfc_ir_temp)
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)


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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:nsagndrad60sC1.b1:
  • inst_up_long_hemisp_tp
  • inst_up_long_hemisp_dome_temp
  • inst_up_long_hemisp_case_temp
  • up_long_hemisp_std
  • Radiation, longwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_long_hemisp)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Maxima(up_long_hemisp_max)
  • Upwelling Longwave Hemispheric Irradiance, Unventilated Pyrgeometer, Minima(up_long_hemisp_min)

nsagndrad20sC1.a0:
  • inst_up_long_hemisp_tp
  • inst_up_long_hemisp_case_resist
  • inst_up_long_hemisp_dome_resist


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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

nsagndrad60sC1.a1:
  • net_std
  • net_mean
  • net_max
  • net_min
  • net
  • net_sd


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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 Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)


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DQRID : D110513.9
Start DateStart TimeEnd DateEnd Time
09/02/2004000009/02/20042359
Subject:
NSA/QCRAD/C1 - Incorrect value of solar zenith angle
DataStreams:nsaqcrad1longC1.c1, nsaqcrad1longC1.s1
Description:
A missing lat/lon value in the SKYRAD input file on 8/26/04 led to incorrect calculation 
of solar zenith angle in the 9/2/04 QCRAD file (QCRAD reads in a week of data at a time 
and uses lat/lon from the first file).  

The solar zenith angles in this file are all incorrect.  The radiation data are likely 
fine, but many of the tests on the shortwave fluxes use solar zenith angle and therefore the 
qc and aqc fields may be incorrect and may incorrectly flag the shortwave flux data.  

The longwave data should be unaffected.
Measurements:nsaqcrad1longC1.s1:
  • zenith
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Best Estimate Global Downwelling Shortwave Hemispheric Irradiance(BestEstimate_down_short_hemisp)
  • lon
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • source_BestEstimate_down_short_hemisp
  • lat

nsaqcrad1longC1.c1:
  • aqc_GSW2SumSW
  • source_BestEstimate_down_short_hemisp
  • Radiation, shortwave, direct normal irradiance, 1-min avg(short_direct_normal)
  • Radiation, shortwave, downwelling total hemispheric irradiance, 1-min avg(down_short_hemisp)
  • aqc_down_short_diffuse_hemisp
  • aqc_short_direct_normal
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)
  • aqc_down_short_hemisp
  • lon
  • aqc_DifSW2GSW
  • Radiation, shortwave, downwelling diffuse hemispheric irradiance, 1-min avg(down_short_diffuse_hemisp)
  • lat
  • zenith
  • aqc_SWupTest
  • Best Estimate Global Downwelling Shortwave Hemispheric Irradiance(BestEstimate_down_short_hemisp)


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DQRID : D110817.5
Start DateStart TimeEnd DateEnd Time
07/20/2011221107/25/20111842
Subject:
NSA/GNDRAD/C1 - Reprocessed: Miscalibrated upwelling SW
DataStreams:nsagndrad20sC1.a0, nsagndrad60sC1.b1
Description:
On 7/20/2011 2211GMT Ops replaced the Gndrad upwelling shortwave instrument (PSP) but the 
calibration coefficients weren't changed until 07/25/2011 1842GMT.  

The up_short_hemisp data were reprocessed and archived in September 2011.
Measurements:nsagndrad60sC1.b1:
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Maxima(up_short_hemisp_max)
  • up_short_hemisp_std
  • Upwelling Shortwave Hemispheric Irradiance, Unventilated Pyranometer, Minima(up_short_hemisp_min)
  • Radiation, shortwave, at 10-m height, upwelling hemispheric irrad., 1-min avg(up_short_hemisp)

nsagndrad20sC1.a0:
  • inst_up_short_hemisp


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DQRID : D110902.2
Start DateStart TimeEnd DateEnd Time
04/27/2011170005/02/20110100
Subject:
NSA/GNDRAD/C1 - Incorrect data during power outage
DataStreams:nsagndrad20sC1.a0, nsagndrad60sC1.b1
Description:
During a power outage the IRT data were incorrect.
Measurements:nsagndrad60sC1.b1:
  • Surface Infra-Red Temperature Minima(sfc_ir_temp_min)
  • sfc_ir_temp_std
  • Surface Infra-Red Temperature Maxima(sfc_ir_temp_max)
  • Effective Surface (Skin) Temperature(sfc_ir_temp)

nsagndrad20sC1.a0:
  • inst_sfc_ir_signal


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DQRID : D990924.1
Start DateStart TimeEnd DateEnd Time
04/06/1998215612/22/20002020
Subject:
NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heated
DataStreams:nsagndrad60sC1.a1
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.a1:
  • irt1_max
  • irt1_min
  • irt1_sd
  • irt1_mean


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END OF DATA