| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D000403.3 | NSA/MFRSR/C1 - Calibration checked | nsamfrsrC1.a0, nsamfrsrC1.b1 |
| D001107.2 | NSA/C1 data loss due to cut fiber optic cable | nsamettwrC1.a1, nsaorgC1.a1, nsapwsC1.a0 |
| D001121.25 | NSA/MFR10M/C1 - Missing data | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| D011119.1 | NSA/PWS/C1 - Present Weather Sensor Calibration/Checks | nsapwsC1.b1, nsapwsC1.a1 |
| D011119.2 | NSA/METTWR/C1 - Met Tower Data Incorrect During Calibrations/Changeouts | nsamettwrC1.b1, nsamettwrC1.a1 |
| D011128.2 | NSA/PWS/C1 - Calibration drift | nsapwsC1.a1 |
| D020402.2 | NSA/METTWR/C1 - C1 SPURIOUS INFORMATION IN DATA HEADER | nsamettwrC1.b1 |
| D020402.3 | NSA/METTWR/C1 - C1 WIND SPEED DATA QUESTIONABLE | nsamettwrC1.b1, nsamettwrC1.a1 |
| D020402.4 | NSA/METTWR/C1 - C1 WIND DIRECTION DATA SUSPECT | nsamettwrC1.b1, nsamettwrC1.a1 |
| D020422.3 | NSA/NIMFR/C1 - Serious Alignment/Tracker Problems | nsanimfrC1.a0, nsanimfrC1.b1 |
| D020424.1 | NSA/METTWRC1 - METTWRCQ DATA REPORTED AS -9999 | nsaorgC1.b1, nsaorgC1.a1, nsapwsC1.a1, nsamettwrC1.b1, nsamettwrC1.a1, nsapwsC1.b1 |
| D020424.2 | NSA/METTWRC1 - METTWRC1 NO DATA COLLECTED FROM TOWER | nsamettwrC1.b1, nsaorgC1.b1, nsaorgC1.a1, nsapwsC1.a1, nsamettwrC1.a1, nsapwsC1.b1 |
| D020610.2 | NSA/METTWR/C1 - Wind Speed data intermittently bad | nsamettwrC1.b1, nsamettwrC1.a1 |
| D020610.7 | NSA/METTWR/C1 - Data missing due to Power Failure | nsamettwrC1.a1, nsamettwrC1.b1 |
| D020626.3 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrC1.a0, nsamfrsrC1.b1 |
| D020712.1 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrC1.a0, nsamfrsrC1.b1 |
| D020814.7 | NSA/SKYRAD/C1 - reprocess: PIR identified as unshaded is really shaded | nsaskyrad20sC1.a1 |
| D021004.19 | NSA/GNDRAD/C1 - PIR thermopile instantaneous values intermittently read zero | nsagndrad20sC1.a1 |
| D021004.20 | NSA/GNDRAD/C1 - PIR thermopile instantaneous values intermittently read zero | nsagndrad20sC1.a1 |
| D021211.10 | NSA/GNDRAD/C1 - Unreasonable/missing PIR data due to maintenance | nsagndrad60sC1.a1 |
| D021211.11 | NSA/GNDRAD/C1 - Noisy PIR Data | nsagndrad60sC1.a1 |
| D021211.12 | NSA/GNDRAD/C1 - Noisy PIR Data | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021211.13 | NSA/GNDRAD/C1 - PIR1 Calibration problems resulted in small error | nsagndrad60sC1.a1 |
| D021211.2 | NSA/GNDRAD/C1 - IRT instrument maintenance | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021211.4 | NSA/GNDRAD/C1 - IRT removed for testing | nsagndrad60sC1.a1 |
| D021211.6 | NSA/GNDRAD/C1 - IRT data noisy | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021211.8 | NSA/GNDRAD/C1 - PIR offline | nsagndrad60sC1.a1 |
| D021211.9 | NSA/GNDRAD/C1 - Instrument maintenance | nsagndrad60sC1.a1 |
| D021212.1 | NSA/GNDRAD/C1 - Instrument Maintenance | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021212.10 | NSA/GNDRAD/C1 - Unreasonable PSP Data | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021212.2 | NSA/GNDRAD/C1 - PSP erroneously replaced by B&W | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021212.3 | NSA/GNDRAD/C1 - Instrument maintenance | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021212.4 | NSA/GNDRAD/C1 - Bad calibrations applied | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021212.5 | NSA/GNDRAD/C1 - Bad PSP calibrations applied | nsagndrad60sC1.a1 |
| D021212.6 | NSA/GNDRAD/C1 - Unexplained decrease in PSP and NET data values | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021212.7 | NSA/GNDRAD/C1 - Data corrupted by brief spike | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021212.8 | NSA/GNDRAD/C1 - Rad instruments shaded by shelter | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D021212.9 | NSA/GNDRAD/C1 - PSP Data corrupted by brief spike | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D030301.1 | NSA/GNDRAD/C1 - No power to IRT | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D030528.5 | NSA/METTWR/C1 - C1/METTWR PRESSURE DATA MISSING AND INCORRECT | nsamettwrC1.a1, nsamettwrC1.b1 |
| D030613.1 | NSA/PWS/C1 - C1/BARROW PWS WORKING INTERMITTENTLY | nsapwsC1.a1, nsapwsC1.b1 |
| D030626.1 | NSA/NIMFR/C1 - Failed logger board | nsanimfrC1.a0, nsanimfrC1.b1 |
| D031216.1 | NSA/GNDRAD/C1 - IRT cable failure | nsagndrad60sC1.b1 |
| D031216.2 | NSA/GNDRAD/C1 - IRT returned to vendor | nsagndrad60sC1.b1 |
| D040412.2 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrlangplotC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1 |
| D040523.1 | NSA/SKYRAD/C1 - Frosting and Condensation | nsaskyrad20sC1.a1, nsaskyrad60sC1.b1, nsaskyradC1.00 |
| D040604.2 | NSA/NIMFR/C1 - Alignment problem | nsanimfrC1.a0, nsanimfrC1.b1 |
| D040919.1 | NSA/GNDRAD/C1 - IRT power failure | nsagndrad60sC1.b1 |
| D041013.3 | NSA/GNDRAD/C1 - Frosting/Condensation | nsagndrad20sC1.a1, nsagndrad60sC1.b1, nsagndradC1.00 |
| D041025.1 | NSA/MFRSR/C1 - Failure of 500 nm channel | nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1, nsamfrsrC1.a0 |
| D041027.11 | NSA/NIMFR/C1 - No data collected during winter | nsanimfrC1.b1, nsanimfrC1.a0 |
| D041027.6 | NSA/MFRSR/C1 - No data collected during winter | nsamfrsrC1.a0, nsamfrsrC1.b1 |
| D041027.8 | NSA/MFR10M/C1 - No data collected during winter | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| D041129.2 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrlangplotC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1 |
| D041222.23 | NSA/MFR10M/C1 - Incorrect global metadata sensor_location | nsamfr10mC1.b1 |
| D050330.1 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrlangplotC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1 |
| D050604.1 | NSA/SKYRAD/C1 - Datalogger grounding problem | nsaskyrad20sC1.a0, nsaskyrad20sC1.a1, nsaskyrad60sC1.b1, nsaskyradC1.00 |
| D050629.1 | NSA/GNDRAD/C1/C2 - Upwelling Shortwave data flagged bad are good. | nsagndrad60sC1.b1, nsagndrad60sC2.b1 |
| D050811.2 | NSA/NIMFR/C1 - Intermittent Data | nsanimfrC1.b1, nsanimfrC1.a0 |
| D050825.3 | NSA/GNDRAD/C1 - Power Disconnected Briefly | nsagndrad60sC1.b1 |
| D051101.3 | NSA/MFR10M/C1 - Shadowband misaligned | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| D051102.2 | NSA/GNDRAD/C1 - PIR measurement | nsagndrad20sC1.a0 |
| D051107.2 | NSA/SKYRAD/C1 - Instrument logger, possible gounding problem | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1, nsaskyradC1.00 |
| D051202.1 | NSA/SKYRAD/C1 - Reprocess: Incorrect datalogger program affecting PIR1 and PIR2 downwelling longwave | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| D060209.4 | NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors | nsagndrad20sC1.a0, nsagndrad60sC1.b1, nsagndradC1.00 |
| D060209.5 | NSA/SKYRAD/C1 - Power outage affecting some SKYRAD instruments | nsaskyrad20sC1.a0, nsaskyradC1.00, nsaskyrad60sC1.b1 |
| D060217.2 | NSA/SKYRAD/C1 - Instrument noise | nsaskyrad60sC1.b1, nsaskyrad20sC1.a0 |
| D060414.2 | NSA/MFR10M/C1 - Head not being heated | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| D060630.39 | NSA/GNDRAD/C1 - Reprocess: Longwave Calibration error | nsagndrad60sC1.b1 |
| D060824.1 | NSA/GNDRAD/C1 - Incorrect calibration coefficients | nsagndrad20sC1.a0, nsagndrad20sC1.a1, nsagndrad60sC1.b1, nsagndradC1.00 |
| D060831.1 | NSA/MFRSR/C1 - Minor shading problem | nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1, nsamfrsrC1.b1, nsamfrsrC1.a0 |
| D060914.1 | NSA/MFR10M/C1 - Channel 415 noise | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| D061027.4 | NSA/MFRSR/C1 - Ch 673 false signal | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
| D061222.1 | NSA/MFRSR/C1 - Reprocessed: Recalibration | nsamfrsrC1.b1, nsamfrsrC1.a0 |
| D070418.1 | NSA/MFRSR/C1 - 940 Channel failure | nsamfrsrC1.b1, nsamfrsrC1.a0 |
| D071002.1 | NSA/SKYRAD/C1 - Preventive maintenance | nsaskyrad60sC1.b1, nsaskyrad20sC1.a0 |
| D071010.1 | NSA/GNDRAD/C1 - Preventive maintenance | nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
| D071018.2 | NSA/GNDRAD/C1 - Missing data | nsagndrad60sC1.b1 |
| D071025.1 | NSA/SKYRAD/C1 - Reprocessed: Incorrect calibration coefficient | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| D071025.3 | NSA/GNDRAD/C1 - Reprocessed: Incorrect calibration coefficient | nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
| D080107.2 | NSA/SKYRAD/C1 - Instrument cleaning effects | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| D080129.1 | NSA/NIMFR/C1 - Missing data | nsanimfrC1.b1, nsanimfrC1.a0 |
| D080222.3 | NSA/SKYRAD/C1 - IRT mirror heater failure | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| D080401.2 | NSA/MFRSR/C1 - Sensor shading problem | nsamfrsrC1.00, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
| D080409.1 | NSA/NIMFR/C1 - Tube heater malfunction | nsanimfrC1.a0, nsanimfrC1.b1 |
| D080418.1 | NSA/SKYRAD/C1 - Direct and Diffuse incorrect | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| D080514.3 | NSA/NIMFR/C1 - Instrument heater not functioning | nsanimfrC1.b1, nsanimfrC1.a0 |
| D080630.1 | NSA/SKYRAD/C1 - Tracker inoperative | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| D080725.1 | NSA/GNDRAD/C1 - IRT not connected | nsagndrad60sC1.a1 |
| D080725.2 | NSA/GNDRAD/C1 - Reprocess: IRT scale factor | nsagndrad60sC1.a1 |
| D080726.1 | NSA/GNDRAD/C1 - IRT failed | nsagndrad60sC1.a1 |
| D080728.1 | NSA/GNDRAD/C1 - IRT incorrect | nsagndrad60sC1.a1 |
| D080729.2 | NSA/GNDRAD/C1 - IRT scale factor | nsagndrad60sC1.a1 |
| D080904.5 | NSA/GNDRAD/C1 - Upwelling PIR ventilator fan failure | nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
| D080919.1 | NSA/GNDRAD/C1 - Net radiometer removed | nsagndrad60sC1.a1, nsagndrad60sC1.b1 |
| D090103.1 | NSA/MFRSR/C1 - Missing data | nsamfrsrC1.b1, nsamfrsrC1.a0 |
| D090209.2 | NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heated | nsagndrad60sC1.b1 |
| D090331.2 | NSA/MET/C1 - Temp/RH/wind data questionable | nsametC1.b1, nsatwrC1.b1 |
| D090331.3 | NSA/MET/C1 - PWS data missing due to snow impaction | nsametC1.b1 |
| D090331.4 | NSA/MET/C1 - Wind data intermittent | nsametC1.b1, nsatwrC1.b1 |
| D090331.5 | NSA/MET/C1 - CMH data missing | nsametC1.b1 |
| D090630.1 | NSA/MET/C1 - Met data incorrect during calibration | nsametC1.b1, nsatwrC1.b1 |
| D090630.2 | NSA/MET/C1 - PWS calibration | nsametC1.b1 |
| D090630.3 | NSA/MET/C1 - CMH calibration | nsametC1.b1 |
| D090708.3 | NSA/MFRSR/C1 - Shadowband misalignment | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
| D090710.1 | NSA/MET/C1 - 2m RH values incorrect | nsametC1.b1, nsatwrC1.b1 |
| D100208.13 | NSA/MET/C1 - CMH and 10m winds failure | nsametC1.b1 |
| D100211.1 | NSA/SKYRAD/C1 - Frosting/Condensation | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| D100423.1 | NSA/CSPHOT/C1 - Instrument Problems | nsacsphotalm1duboC1.a1, nsacsphotalmC1.a1, nsacsphotaotC1.a1, nsacsphotaotfiltC1.a1, nsacsphotaotfiltqaC1.a1, nsacsphotcoarsepfn1C1.a1, nsacsphotfinepfn1C1.a1, nsacsphotppC1.a1, nsacsphotsizeC1.a1, nsacsphottotalpfn1C1.a1 |
| D100504.1 | NSA/MET/C1 - CMH Data Missing | nsametC1.b1 |
| D100524.4 | NSA/NIMFR/C1 - Instrument noise (channels 870 and 940 | nsanimfrC1.a0, nsanimfrC1.b1, nsanimfraod1michC1.c1, nsanimfrlangleyC1.c1, nsanimfrlangplotC1.c1 |
| D100709.1 | NSA/MET/C1 - CMH Sent to Vendor for Repair | nsametC1.b1 |
| D100720.1 | NSA/NIMFR/C1 - Localized obstructions near horizon block direct beam | nsanimfrC1.a0, nsanimfrC1.b1, nsanimfraod1michC1.c1, nsanimfrlangleyC1.c1 |
| D100722.2 | NSA/MFRSR/C1 - Shadowband Misalignment | nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1, nsamfrsrC1.a0 |
| D101215.2 | NSA/MET/C1 - CMH offline | nsametC1.b1 |
| D101220.3 | NSA/MET/C1 - 10m wind sensor offline | nsametC1.b1 |
| D110217.1 | NSA/MET/C1 - CMH offline | nsametC1.b1 |
| D110602.2 | NSA/MET/C1 - CMH Failure | nsametC1.b1 |
| D110722.2 | NSA/MET/C1 - Wind sensor data missing | nsametC1.b1, nsatwrC1.b1 |
| D110817.5 | NSA/GNDRAD/C1 - Reprocessed: Miscalibrated upwelling SW | nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
| D110817.6 | NSA/SKYRAD/C1 - Reprocessed: Incorrect calibration coefficients | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| D110902.1 | NSA/SKYRAD/C1 - Incorrect data during power outage | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| D110902.2 | NSA/GNDRAD/C1 - Incorrect data during power outage | nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
| D111006.7 | NSA/MFRSR/C1 - Shadowband failure | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
| D111129.1 | NSA/MET/C1 - CMH communication failure | nsametC1.b1 |
| D120423.1 | NSA/MET/C1 - CMH failure | nsametC1.b1 |
| D120727.2 | NSA/CSPHOT/C1 - Tracking failure | nsacsphotalm1duboC1.a1, nsacsphotalmC1.a1, nsacsphotaotC1.a1, nsacsphotaotfiltC1.a1, nsacsphotaotfiltqaC1.a1, nsacsphotcoarsepfn1C1.a1, nsacsphotfinepfn1C1.a1, nsacsphotppC1.a1, nsacsphotsizeC1.a1, nsacsphottotalpfn1C1.a1 |
| D981102.1 | NSA/TOWER - Mislabeled tower sensors | nsamettwrC1.a1, nsametC1.00 |
| D981212.1 | NSA/SKYRAD - Barrow SKYRAD PIRD Misconfiguration 12/9 - 12/12/98 | nsaskyrad20sC1.a1, nsaskyrad60sC1.a1 |
| D990308.3 | NSA/SKYRAD/C1 - Incorrect 20s dome thermistor data | nsaskyrad20sC1.a1 |
| D990419.1 | NSA/MFR10M/C1 - Instrument rotated skyward to check calibration | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| D990619.1 | NSA/MFR10M/C1 - Instrument rotated skyward to check calibration | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| D990924.1 | NSA/GNDRAD/C1 - Reprocess: IRT insufficiently heated | nsagndrad60sC1.a1 |
| D991104.1 | NSA/NIMFR/C1 - Bad irradiance data | nsanimfrC1.a0, nsanimfrC1.b1 |
| D991116.1 | NSA/METTOWER - Questionable NSA Met-tower wind data | nsamettwrC1.a1, nsametC1.00 |
| D991116.2 | NSA/METTOWER - Questionable NSA Met-tower wind data | nsamettwrC1.a1, nsametC1.00 |
| D991129.1 | NSA/METOWER - Reprocess: Incorrect NSA wind direction minima and maxima | nsamettwrC1.a1, nsametC1.00 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/16/1999 | 0000 | 11/17/1999 | 2359 |
| Subject: | NSA/MFRSR/C1 - Calibration checked |
| DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1 |
| Description: | The calibration of the MFRSR was checked during deployment using Langley regression. These calibrations were bracketed by pre- and post-deployment calibration checks. Results from these checks indicate that the MFRSR was in a good state of calibration during the 1999 season. The ios (in W/m^2/nm) are: 415 nm - 1.767 500 nm - 1.949 616 nm - 1.710 674 nm - 1.539 867 nm - 0.954 These values are within 1% of the ios derived by taking the dot product of the filter functions with the Gueymard extraterrestrial spectrum. |
| Measurements: | nsamfrsrC1.a0:
nsamfrsrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/14/2000 | 0000 | 04/06/2000 | 2359 |
| Subject: | NSA/C1 data loss due to cut fiber optic cable |
| DataStreams: | nsamettwrC1.a1, nsaorgC1.a1, nsapwsC1.a0 |
| Description: | The fiber optic line connecting the MET TWR to the data collection facility was accidentally cut during snow removal. Data are unrecoverable. |
| Measurements: | nsapwsC1.a0:
nsamettwrC1.a1:
nsaorgC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/13/2000 | 0500 | 04/17/2000 | 0600 |
| 07/29/2011 | 2200 | 08/02/2011 | 2201 |
| Subject: | NSA/MFR10M/C1 - Missing data |
| DataStreams: | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| Description: | Data are missing and unrecoverable. |
| Measurements: | nsamfr10mC1.b1:
nsamfr10mC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/09/2001 | 2332 | 10/10/2001 | 0037 |
| Subject: | NSA/PWS/C1 - Present Weather Sensor Calibration/Checks |
| DataStreams: | nsapwsC1.b1, nsapwsC1.a1 |
| Description: | During the listed period the Barrow Present Weather Sensor was being checked and calibrated and the data was incorrect. The calibration was off more than 3% previous to the re-calibration. |
| Measurements: | nsapwsC1.a1:
nsapwsC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/09/2001 | 2300 | 10/13/2001 | 2301 |
| Subject: | NSA/METTWR/C1 - Met Tower Data Incorrect During Calibrations/Changeouts |
| DataStreams: | nsamettwrC1.b1, nsamettwrC1.a1 |
| Description: | Met Tower Data was incorrect during this period while sensor changeouts and calibrations were accomplished. |
| Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/23/2000 | 0000 | 10/10/2001 | 0037 |
| Subject: | NSA/PWS/C1 - Calibration drift |
| DataStreams: | nsapwsC1.a1 |
| Description: | The calibration of the sensor drifted downwards slightly more than 3% during the more than two years in between calibrations. The drift had no significant impact on the data produced. Note: the period of this DQR extends back prior to 20000503 when the datastream was named nsapwsC1.a0. |
| Measurements: | nsapwsC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/01/2001 | 0000 | 10/08/2001 | 2359 |
| Subject: | NSA/METTWR/C1 - C1 SPURIOUS INFORMATION IN DATA HEADER |
| DataStreams: | nsamettwrC1.b1 |
| Description: | There is an attribute for read_timeout_count that should not be included. The affected prtion of the header is: read_timeout_count:details = '0 = no error, 1 = error' User should disregard this attribute information in the header. |
| Measurements: | nsamettwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/25/2001 | 0000 | 10/13/2001 | 2301 |
| Subject: | NSA/METTWR/C1 - C1 WIND SPEED DATA QUESTIONABLE |
| DataStreams: | nsamettwrC1.b1, nsamettwrC1.a1 |
| Description: | The anemometers located at all 4 levels (2m, 10m, 20m, and 40m) are heated anemometers. The thermistors controlling the amount of power applied to the cups of the anemometers failed. This caused too much power to be sent to the heating elements. The cups bubbled and, in some cases, completely melted through. |
| Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/25/2001 | 0000 | 10/13/2001 | 2301 |
| Subject: | NSA/METTWR/C1 - C1 WIND DIRECTION DATA SUSPECT |
| DataStreams: | nsamettwrC1.b1, nsamettwrC1.a1 |
| Description: | The wind direction sensor at the 10m level and 20m level became frozen. The senor at the 10m level became frozen on July 25 2001. The date that the 20m level became frozen is unknown but occurred after the 10m level became frozen. Both sensors froze in such a way as to consistently report wind direction values out of the south. |
| Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/07/2002 | 0000 | 04/19/2002 | 1400 |
| Subject: | NSA/NIMFR/C1 - Serious Alignment/Tracker Problems |
| DataStreams: | nsanimfrC1.a0, nsanimfrC1.b1 |
| Description: | Late in the evening of April 6, Barrow site had a power failure. When power was restored the tracker went to the wrong position and stopped. The tracker remained in the stopped position until April 19 14:00 when operations was restored. While the Tracker was stopped the NIMFR was pointed some place in space. Head and tube temp remained normal. Detectors were recording no signals or zero sun. |
| Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/04/2002 | 1006 | 02/04/2002 | 1022 |
| 02/11/2002 | 2100 | 02/21/2002 | 1929 |
| Subject: | NSA/METTWRC1 - METTWRCQ DATA REPORTED AS -9999 |
| DataStreams: | nsaorgC1.b1, nsaorgC1.a1, nsapwsC1.a1, nsamettwrC1.b1, nsamettwrC1.a1, nsapwsC1.b1 |
| Description: | Due to local power outages caused by winter storms, the Bridgeview collection program became corrupted. All tower data and associated instruments on the tower reported as -9999. |
| Measurements: | nsapwsC1.a1:
nsamettwrC1.a1:
nsamettwrC1.b1:
nsapwsC1.b1:
nsaorgC1.a1:
nsaorgC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/04/2002 | 1023 | 02/11/2002 | 2059 |
| 02/21/2002 | 1930 | 02/21/2002 | 2002 |
| Subject: | NSA/METTWRC1 - METTWRC1 NO DATA COLLECTED FROM TOWER |
| DataStreams: | nsamettwrC1.b1, nsaorgC1.b1, nsaorgC1.a1, nsapwsC1.a1, nsamettwrC1.a1, nsapwsC1.b1 |
| Description: | Power outage caused fatal errors in the Bridgeview collection program. No data was ingested from the tower and sensors located on the tower. |
| Measurements: | nsapwsC1.a1:
nsamettwrC1.a1:
nsamettwrC1.b1:
nsapwsC1.b1:
nsaorgC1.a1:
nsaorgC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/28/2002 | 1530 | 09/18/2002 | 1915 |
| Subject: | NSA/METTWR/C1 - Wind Speed data intermittently bad |
| DataStreams: | nsamettwrC1.b1, nsamettwrC1.a1 |
| Description: | Wind speed at 20m level icing up and wind speed values are intermittently 0 m/s, lower than other sensors and good at times. Heater failure on sensor that prevents icing. |
| Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/06/2002 | 0150 | 06/07/2002 | 1707 |
| Subject: | NSA/METTWR/C1 - Data missing due to Power Failure |
| DataStreams: | nsamettwrC1.a1, nsamettwrC1.b1 |
| Description: | From 020606.0150-0204, the met twr data (all levels) are all -9999 due to a power failure. The collection program was shut down from 0205-1930, so no data were collected. And from 1931-020607.1707, the data are all -9999 again due to the power failure. |
| Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/12/2002 | 0000 | 04/24/2002 | 2359 |
| Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
| DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1 |
| Description: | Data quality poor due to bad alignment. |
| Measurements: | nsamfrsrC1.a0:
nsamfrsrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/07/2002 | 0000 | 11/07/2002 | 2359 |
| Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
| DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1 |
| Description: | The Barrow MFRSR shadowband did not operate properly following the spring installation (4-7-2002). The band was misaligned and multiple attempts to correct the alignment were unsuccessful. It was not possible to correct the problem because of persistent clouds. The problem continued throughout the entire MFRSR data collection season. |
| Measurements: | nsamfrsrC1.a0:
nsamfrsrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/15/2002 | 1905 | 03/03/2003 | 2359 |
| Subject: | NSA/SKYRAD/C1 - reprocess: PIR identified as unshaded is really shaded |
| DataStreams: | nsaskyrad20sC1.a1 |
| Description: | On 5/15/02 the Global PIR was moved from the unshaded position on the Skyrad stand to a shaded spot on the tracker. It is still using the same Logger channel as it did as an unshaded PIR even though it is now shaded. |
| Measurements: | nsaskyrad20sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/01/2001 | 0000 | 02/20/2002 | 2313 |
| Subject: | NSA/GNDRAD/C1 - PIR thermopile instantaneous values intermittently read zero |
| DataStreams: | nsagndrad20sC1.a1 |
| Description: | GNDRAD intermittently reported false zero values for the third instantaneous value (50 sec after the minute) of the PIR thermopile voltage. |
| Measurements: | nsagndrad20sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/06/1998 | 2157 | 03/31/2001 | 2359 |
| Subject: | NSA/GNDRAD/C1 - PIR thermopile instantaneous values intermittently read zero |
| DataStreams: | nsagndrad20sC1.a1 |
| Description: | GNDRAD intermittently reported false zero values for the third instantaneous value (50 sec after the minute) of the PIR thermopile voltage. |
| Measurements: | nsagndrad20sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/19/1999 | 1830 | 01/20/1999 | 2359 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/01/1998 | 0000 | 02/28/1999 | 2359 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/01/1999 | 0000 | 12/31/2000 | 2359 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/08/1998 | 2051 | 12/15/1998 | 1200 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/15/1999 | 1720 | 09/15/1999 | 2000 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/29/1999 | 1900 | 05/19/2000 | 0000 |
| Subject: | NSA/GNDRAD/C1 - IRT removed for testing |
| DataStreams: | nsagndrad60sC1.a1 |
| Description: | The IRT instrument was at PNNL for cold temperature modifications and testing. Instruments returned for the summer season. Data collected after the instrument return looks reasonable. IRT data recorded during the period the instrument was removed is bad. |
| Measurements: | nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/10/1999 | 0000 | 12/29/2000 | 1859 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/16/1999 | 0030 | 02/16/1999 | 2000 |
| 02/17/1999 | 0000 | 02/17/1999 | 0100 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/08/1998 | 2030 | 12/08/1998 | 2050 |
| Subject: | NSA/GNDRAD/C1 - Instrument maintenance |
| DataStreams: | nsagndrad60sC1.a1 |
| Description: | Instrument replaced. Data affected by the work done during this time. |
| Measurements: | nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/13/2001 | 2100 | 06/13/2001 | 2200 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/03/1999 | 1200 | 03/03/1999 | 1515 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/13/2001 | 2300 | 06/21/2001 | 1800 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/21/2001 | 1800 | 06/21/2001 | 1830 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/08/2001 | 0100 | 11/09/2001 | 0300 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/21/1999 | 0000 | 02/09/1999 | 2359 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/27/1999 | 2330 | 04/27/1999 | 2335 |
| 04/28/1999 | 1920 | 04/28/1999 | 1930 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/13/1999 | 1945 | 03/13/1999 | 1955 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/08/1999 | 0000 | 09/30/1999 | 2359 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/07/2001 | 2100 | 11/07/2001 | 2105 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/24/2002 | 1725 | 11/16/2002 | 0003 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/21/2003 | 0501 | 05/28/2003 | 1659 |
| Subject: | NSA/METTWR/C1 - C1/METTWR PRESSURE DATA MISSING AND INCORRECT |
| DataStreams: | nsamettwrC1.a1, nsamettwrC1.b1 |
| Description: | Starting at 0501 UTC on 05/21, pressure readings frequently are out of tolerance. The read timeout value had changed from 250 ms to 150 ms. Changed the read time out back to 250 ms. Unknown as to how read timeout values changed. |
| Measurements: | nsamettwrC1.a1:
nsamettwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/17/2002 | 0200 | 04/22/2003 | 1918 |
| Subject: | NSA/PWS/C1 - C1/BARROW PWS WORKING INTERMITTENTLY |
| DataStreams: | nsapwsC1.a1, nsapwsC1.b1 |
| Description: | The PWS worked intermittently throughout entire period. Extensive troubleshooting located a broken wire in the RS-232 connector. Contact was made intermittently allowing some data to be recorded. |
| Measurements: | nsapwsC1.a1:
nsapwsC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/30/2003 | 0000 | 06/04/2003 | 2359 |
| Subject: | NSA/NIMFR/C1 - Failed logger board |
| DataStreams: | nsanimfrC1.a0, nsanimfrC1.b1 |
| Description: | A problem with the logger board led to erratic values for all data during the listed time period. The affected data are not correctable. |
| Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/27/2003 | 1400 | 09/11/2003 | 1906 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/11/2003 | 1906 | 10/15/2003 | 0015 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/31/2004 | 0000 | 04/15/2004 | 2359 |
| Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
| DataStreams: | nsamfrsrlangplotC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1 |
| Description: | During this time period the shadowband was misaligned. Portions of the data have acceptable shading and experienced data users can apply screening. |
| Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/13/2004 | 0000 | 05/18/2004 | 0000 |
| Subject: | NSA/SKYRAD/C1 - Frosting and Condensation |
| DataStreams: | nsaskyrad20sC1.a1, nsaskyrad60sC1.b1, nsaskyradC1.00 |
| Description: | The operators in both Barrow and Atqasuk reported significant ice buildup during nights for the period specified, with the ice melting during the days. This condition is reported in preventative maintenance reports as continuing until on or near 5/18/2004. However, review of data shows no discernable radiometer icing. |
| Measurements: | nsaskyradC1.00:
nsaskyrad60sC1.b1:
nsaskyrad20sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/26/2004 | 0600 | 06/03/2004 | 1925 |
| Subject: | NSA/NIMFR/C1 - Alignment problem |
| DataStreams: | nsanimfrC1.a0, nsanimfrC1.b1 |
| Description: | NIMFR at the Barrow Site was not pointing directly at the sun because the solar tracker was not aligned correctly. As a consequence, the measured irradiances are too low. Once the alignment problem was fixed at 6/3/2004 1925 GMT, the problem was apparently solved. The NIP might similarly be affected. |
| Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/15/2004 | 0000 | 09/22/2004 | 0552 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/09/2004 | 0000 | 10/15/2004 | 2359 |
| 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:
nsagndradC1.00:
nsagndrad20sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/22/2004 | 2359 | 11/05/2004 | 2030 |
| Subject: | NSA/MFRSR/C1 - Failure of 500 nm channel |
| DataStreams: | nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1, nsamfrsrC1.a0 |
| Description: | The 500nm channel measurement was reporting values near zero due to a loose cable. All other channels were reporting normal values. |
| Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/01/2000 | 1802 | 04/25/2001 | 2328 |
| 11/06/2001 | 2310 | 03/15/2002 | 0210 |
| 11/07/2002 | 1903 | 03/06/2003 | 1502 |
| 11/17/2003 | 2303 | 04/06/2004 | 1702 |
| 11/08/2004 | 2302 | 02/17/2005 | 2002 |
| 11/28/2005 | 2303 | 03/14/2006 | 2002 |
| 11/20/2006 | 2202 | 03/20/2007 | 0002 |
| 10/31/2007 | 0003 | 03/06/2008 | 1502 |
| 11/16/1998 | 2336 | 03/16/1999 | 2042 |
| 11/18/1999 | 0250 | 02/03/2000 | 0048 |
| Subject: | NSA/NIMFR/C1 - No data collected during winter |
| DataStreams: | nsanimfrC1.b1, nsanimfrC1.a0 |
| Description: | The sun does not rise above the horizon at the NSA sites between November and January each year. During this time period, the MFR instruments are removed and returned to PNNL for maintenance and calibration. The instruments are generally re-installed in March. |
| Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/16/1998 | 2336 | 03/16/1999 | 2251 |
| 11/18/1999 | 1712 | 01/31/2000 | 1740 |
| 11/01/2000 | 1800 | 03/09/2001 | 1615 |
| 10/30/2007 | 2303 | 03/06/2008 | 1502 |
| 11/28/2005 | 2302 | 03/27/2006 | 2102 |
| 11/20/2006 | 1957 | 04/06/2007 | 2025 |
| 11/08/2004 | 2202 | 02/18/2005 | 1802 |
| 11/17/2003 | 1903 | 03/31/2004 | 2302 |
| 11/05/2001 | 2300 | 03/08/2002 | 1900 |
| 11/05/2002 | 1903 | 03/06/2003 | 2002 |
| Subject: | NSA/MFRSR/C1 - No data collected during winter |
| DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1 |
| Description: | The sun does not rise above the horizon at the NSA sites between November and January each year. During this time period, the MFR instruments are removed and returned to PNNL for maintenance and calibration. The instruments are generally re-installed in March. |
| Measurements: | nsamfrsrC1.a0:
nsamfrsrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/16/1998 | 2336 | 03/15/1999 | 1858 |
| 11/18/1999 | 0213 | 02/03/2000 | 0119 |
| 11/01/2000 | 1849 | 03/13/2001 | 0249 |
| 11/08/2001 | 0106 | 03/14/2002 | 0105 |
| 11/07/2002 | 2302 | 04/17/2003 | 0002 |
| 11/18/2003 | 1903 | 04/01/2004 | 2002 |
| 11/08/2004 | 2302 | 02/18/2005 | 1802 |
| 11/29/2005 | 1802 | 03/15/2006 | 0002 |
| 11/20/2006 | 2302 | 03/26/2007 | 1605 |
| 10/30/2007 | 2000 | 03/06/2008 | 1502 |
| Subject: | NSA/MFR10M/C1 - No data collected during winter |
| DataStreams: | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| Description: | The sun does not rise above the horizon at the NSA sites between November and January each year. During this time period, the MFR instruments are removed and returned to PNNL for maintenance and calibration. The instruments are generally re-installed in March. |
| Measurements: | nsamfr10mC1.b1:
nsamfr10mC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/01/2004 | 1600 | 10/03/2004 | 1838 |
| Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
| DataStreams: | nsamfrsrlangplotC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1 |
| Description: | During the time period specified, the shadowband was misaligned due to ice-accumulation on the band. Portions of the data have acceptable shading and can be used by experienced data users applying appropriate screening. |
| Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/19/2003 | 0000 | 07/21/2003 | 2359 |
| Subject: | NSA/MFR10M/C1 - Incorrect global metadata sensor_location |
| DataStreams: | nsamfr10mC1.b1 |
| Description: | During the time period specified, the global metadata attribute sensor_location was incorrectly reported as 60m. The correct value is 10m. |
| Measurements: | nsamfr10mC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/19/2005 | 0000 | 07/05/2005 | 1500 |
| Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
| DataStreams: | nsamfrsrlangplotC1.c1, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1 |
| Description: | There were shading problems during the specified period, at different times of the day during the time period. Portions of the data have acceptable shading and can be used by experienced data users applying appropriate screening. |
| Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/13/2005 | 1100 | 05/13/2005 | 2000 |
| 05/19/2005 | 0830 | 05/24/2005 | 1800 |
| 05/28/2005 | 1730 | 05/29/2005 | 1800 |
| 05/31/2005 | 1500 | 06/04/2005 | 0900 |
| 06/10/2005 | 0300 | 06/10/2005 | 0400 |
| Subject: | NSA/SKYRAD/C1 - Datalogger grounding problem |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad20sC1.a1, nsaskyrad60sC1.b1, nsaskyradC1.00 |
| Description: | Both PIRs reported unreasonable high readings with coincident low reading from the IRT. Since both PIR instruments exhibited exactly the same behaviour and the IRT an opposite response during large suspect data excursions this indicates that the false signal maybe the result of poor grounding. The PIR1,2 data and the IRT data are most adversely affected. During the problem periods PIR irradiance increased (typ pos 200-300W/m2) while the IRT response was negative (typ neg 20-30W/m2) but followed the response of the PIR. The Skyrad shortwave instruments were also affected but to much less extent (within their uncertainties). Data quality flags are typically not triggered during these problem periods. Data logger grounding was improved on 6/10 2005. The problem hasn't re-occurred since that time. |
| Measurements: | nsaskyradC1.00:
nsaskyrad60sC1.b1:
nsaskyrad20sC1.a1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/01/2005 | 0000 | 04/30/2005 | 2359 |
| 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:
nsagndrad60sC2.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 08/08/2005 | 1700 | 08/11/2005 | 2359 |
| Subject: | NSA/NIMFR/C1 - Intermittent Data |
| DataStreams: | nsanimfrC1.b1, nsanimfrC1.a0 |
| Description: | The NIMFR occasionally flat lined in comparison to the the co-located MFRSR. Poor electrical connection. Intermittent data are missing and unrecoverable. |
| Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 08/24/2005 | 0030 | 08/24/2005 | 0030 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/27/1998 | 0000 | 04/24/1998 | 2359 |
| Subject: | NSA/MFR10M/C1 - Shadowband misaligned |
| DataStreams: | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| Description: | During the period 19980327-19980416, the latitude and longitude entered into the MFR10m and used by the instrument software to control shadowband placement was incorrect. This resulted in a slight shading problem. Users should be aware of the problem and use the data during this period with caution. The internal lat and lon were corrected on 19980416, but the shadowband was not properly aligned. This resulted in a more pronounced shading problem. The alignment was corrected on 19980424. Data during this period should also be used with caution. |
| Measurements: | nsamfr10mC1.b1:
nsamfr10mC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/04/2004 | 0000 | 08/27/2005 | 0450 |
| Subject: | NSA/GNDRAD/C1 - PIR measurement |
| DataStreams: | nsagndrad20sC1.a0 |
| Description: | Fan on PIR failed sometime during this period. Looking at QC plots does not seem to indicate an actual time of failure. Near beginning of period, deltas from comparison to IRT are lower, and larger later, possibly indicating failure sometime in here, but there are no definates. CM/PM reports do not indicate status of fan so this is a broad range. |
| Measurements: | nsagndrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/22/2005 | 1230 | 10/22/2005 | 1600 |
| Subject: | NSA/SKYRAD/C1 - Instrument logger, possible gounding problem |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1, nsaskyradC1.00 |
| Description: | Possible Skyrad datalogger grounding issues have re-appeared at NSA/C1 for only this short time period. Anomalous data readings during the time range specified are similar to problem which occurred in early summer 2005. |
| Measurements: | nsaskyradC1.00:
nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/04/2004 | 1900 | 09/09/2005 | 2142 |
| Subject: | NSA/SKYRAD/C1 - Reprocess: Incorrect datalogger program affecting PIR1 and PIR2 |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| Description: | The excitation delays using in measuring the PIR1 case thermistor commonly named "Case1" and the PIR2 dome thermistor called "Dome2" were discovered to have been incorrectly set to 0 in the Skyrad datalogger program when the new CR23X based Skyrad loggers were installed. The result of no delay in these measurements results in an error in the measured resistance of the thermistors, Case1 and Dome2 and thus the calculated PIR1 and PIR2 irradiances. The errors are inversely proportial to temperature. Users can apply the temperature dependent irradiance corrections shown in the table below. Recall that the reported uncertainty of PIRs is typically +-.25% to +-.5% or 1 to 2 W/m2. The error corrections become the same order of magnitude or larger than the instrument uncertainties at or below 260K or 9F. Correction Table for Skyrad (TWP and NSA) DIR1 and DIR2 Irradiance DIR1 DIR1 DIR2 DIR2 T[F] Tcase[K] Correction[W/m2] Tdome[K] Correction[W/m2] 109.4 316.13 0.00 316.13 0.00 100.5 311.20 -0.15 311.20 0.12 93.2 307.14 -0.12 307.14 0.10 87.0 303.70 -0.10 303.70 0.08 81.6 300.70 -0.17 300.70 0.14 77.0 298.15 -0.22 298.15 0.18 59.4 288.35 -0.34 288.35 0.27 47.4 281.72 -0.23 281.72 0.18 38.5 276.74 -0.42 276.74 0.34 31.3 272.77 -0.48 272.77 0.38 25.4 269.48 -0.61 269.48 0.49 20.3 266.67 -0.67 266.67 0.54 16.0 264.25 -0.82 264.25 0.66 12.1 262.11 -0.98 262.11 0.79 8.7 260.19 -0.97 260.19 0.78 5.6 258.46 -1.07 258.46 0.86 2.7 256.89 -1.17 256.89 0.94 0.1 255.44 -1.33 255.44 1.07 -2.3 254.11 -1.41 254.11 1.13 -4.5 252.87 -1.43 252.87 1.15 -6.6 251.71 -1.52 251.71 1.22 -8.5 250.63 -1.63 250.63 1.31 -10.4 249.62 -1.73 249.62 1.39 -12.2 248.58 -1.79 248.58 1.44 -15.4 246.82 -1.93 246.82 1.55 -18.3 245.23 -2.05 245.23 1.65 -20.9 243.78 -2.22 243.78 1.78 -23.3 242.44 -2.36 242.44 1.89 -25.5 241.21 -2.58 241.21 2.07 -27.5 240.07 -2.65 240.07 2.13 -29.5 239.01 -2.75 239.01 2.21 -31.3 238.00 -3.02 238.00 2.42 |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/07/2006 | 0910 | 02/07/2006 | 2350 |
| 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:
nsagndradC1.00:
nsagndrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/07/2006 | 0910 | 02/07/2006 | 2350 |
| Subject: | NSA/SKYRAD/C1 - Power outage affecting some SKYRAD instruments |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyradC1.00, nsaskyrad60sC1.b1 |
| Description: | During the power outage the downwelling global measurement from the PSP instrument and downwelling diffuse 8-48 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 downwelling 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: | nsaskyradC1.00:
nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/15/2006 | 1300 | 02/16/2006 | 1500 |
| Subject: | NSA/SKYRAD/C1 - Instrument noise |
| DataStreams: | nsaskyrad60sC1.b1, nsaskyrad20sC1.a0 |
| Description: | Skyrad data appears affected by noise creating bias in analog voltage readings on 02/15/2006 from 1300-1800GMT and again on 02/16/2006 from 1300-1500GMT. The second night the noise is attenuated significantly. By 02/17 no bias/noise is detectable. The thermistor measurements in PIR1 and PIR2 were unaffected during these excursions and showed no deviation from normal during the problem period. In addition, the onboard logger temperature and battery voltage read normal throughout. The problem has not reappeared as of 4/25/2006. |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/15/2006 | 0002 | 03/22/2006 | 0028 |
| Subject: | NSA/MFR10M/C1 - Head not being heated |
| DataStreams: | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| Description: | Head heater was not operational during the period specified. |
| Measurements: | nsamfr10mC1.b1:
nsamfr10mC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/04/2004 | 1600 | 12/21/2005 | 1855 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 08/11/2006 | 1930 | 08/25/2006 | 1859 |
| 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:
nsagndradC1.00:
nsagndrad20sC1.a1:
nsagndrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/01/2006 | 0000 | 08/31/2006 | 2359 |
| Subject: | NSA/MFRSR/C1 - Minor shading problem |
| DataStreams: | nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1, nsamfrsrC1.b1, nsamfrsrC1.a0 |
| Description: | There was a very minor shading problem when the instrument resumed banding after solar midnight. This only affected a small portion of each day; not more than two hours after the instrument resumed banding after solar midnight. 7/9 is the best example of the problem. The boundaries of this DQR are a little loose as the often cloudy conditions make it difficult to precisely say when the problem stopped. Maintenance was performed on 9/5, but the problem was not visible sometime before that. |
| Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/06/2006 | 0000 | 11/22/2006 | 2359 |
| Subject: | NSA/MFR10M/C1 - Channel 415 noise |
| DataStreams: | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| Description: | There are some very minor downward spikes in the 415 channel that were first noticed in the daytime data on 9/7/2006. They occur throughout Sept and less into Oct/Nov. The instrument was pulled on 11/22 and will be examined over the winter. The spikes really are very minor, and at times only appear as minor bulges when the plot is expanded to a very large scale. |
| Measurements: | nsamfr10mC1.b1:
nsamfr10mC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/14/2006 | 2300 | 03/27/2006 | 2100 |
| Subject: | NSA/MFRSR/C1 - Ch 673 false signal |
| DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
| Description: | Channel 673 was reporting bad data immediately after the post winter installation. The cause was likely a bad connection. All other channels are OK. Do not use 673 for the period covered by this DQR. |
| Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsrlangleyC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/27/2006 | 2100 | 11/20/2006 | 2359 |
| Subject: | NSA/MFRSR/C1 - Reprocessed: Recalibration |
| DataStreams: | nsamfrsrC1.b1, nsamfrsrC1.a0 |
| Description: | The originally applied calibrations were bad. Corrected calibrations were applied and reprocessed data were archived February 5, 2007. (Note: these data were subsequently reprocessed again and archived in November 2007) |
| Measurements: | nsamfrsrC1.a0:
nsamfrsrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/06/2007 | 2026 | 10/30/2007 | 2302 |
| Subject: | NSA/MFRSR/C1 - 940 Channel failure |
| DataStreams: | nsamfrsrC1.b1, nsamfrsrC1.a0 |
| Description: | Channel 940 failed and will not be replaced before the system is removed for calibration in the Fall. |
| Measurements: | nsamfrsrC1.a0:
nsamfrsrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/30/2007 | 1937 | 10/03/2007 | 0300 |
| Subject: | NSA/SKYRAD/C1 - Preventive maintenance |
| DataStreams: | nsaskyrad60sC1.b1, nsaskyrad20sC1.a0 |
| Description: | Preventive maintenance to rebuild ventilator fan and exchange instruments during this time removed Skyrad instruments from operation. Most data collected are not scientifically relevant. |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/02/2007 | 2300 | 10/04/2007 | 0145 |
| 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:
nsagndrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/23/1999 | 0000 | 11/28/1999 | 2359 |
| 01/28/2000 | 0000 | 02/03/2000 | 2341 |
| 09/21/2000 | 1619 | 09/24/2000 | 2258 |
| 03/15/2002 | 2052 | 03/21/2002 | 1502 |
| 07/27/1999 | 2150 | 08/05/1999 | 2359 |
| 08/06/1999 | 1208 | 08/07/1999 | 2359 |
| 10/03/1999 | 0000 | 11/04/1999 | 2359 |
| Subject: | NSA/GNDRAD/C1 - Missing data |
| DataStreams: | nsagndrad60sC1.b1 |
| Description: | Data are missing and unrecoverable. |
| Measurements: | nsagndrad60sC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/03/2007 | 0359 | 10/25/2007 | 2148 |
| Subject: | NSA/SKYRAD/C1 - Reprocessed: Incorrect calibration coefficient |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| Description: | Installed Skyrad PSP (downwelling shortwave hemispheric irradiance) had calibration coefficient Rs applied when it should have used Rsc. ARM is using IR corrected Rsc and CFc coefficients for PSPs deployed at all facilities. PSP #32026 should use RSc@45=8.7578 ?V/W/m? and not Rs@45=8.6335. Reprocessed to correct downwelling shortwave hemispheric irradiance (DS) by: DS(new) = (DS(old) / 115.83 ) * 114.18 Reprocessing completed March 2008. |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/04/2007 | 0130 | 10/25/2007 | 2149 |
| 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:
nsagndrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/16/2007 | 0000 | 12/24/2007 | 2359 |
| Subject: | NSA/SKYRAD/C1 - Instrument cleaning effects |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| Description: | Starting Dec 16th the Skyrad PIR1 and PIR2 (down_long_hemispheric)started differing by greater than 30W/m2 at times. This is much greater than expected for these instruments (typical is <10-15 W/m2). NSA OMIS reports and observer comments reveal that PM periodically clean the snow from the IRT and ventilator fans on Skyrad and Gndrad. In the case of the Skyrad PIRs, one lies in the wind shadow of the other and builds up more snow which is periodically cleaned out and then builds up again causing the PIR1 PIR2 discrepancies. Disregard down_long_hemispheric during this time period. However, data suggests PIR2 is most likely at fault - potentially use PIR1 data during this time period. |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 08/01/2003 | 1603 | 08/03/2003 | 1959 |
| 11/05/2003 | 0303 | 11/07/2003 | 2301 |
| 10/20/2000 | 1511 | 10/22/2000 | 0044 |
| 08/09/2001 | 0011 | 08/12/2001 | 0609 |
| 08/15/2001 | 0011 | 08/20/2001 | 1809 |
| 10/06/2000 | 2336 | 10/08/2000 | 2246 |
| 11/02/1999 | 1039 | 11/04/1999 | 2322 |
| 10/12/1999 | 0000 | 10/14/1999 | 0039 |
| 08/15/1998 | 0046 | 08/17/1998 | 0458 |
| 10/16/1998 | 1536 | 10/19/1998 | 2300 |
| 07/28/1999 | 0048 | 08/09/1999 | 0122 |
| 08/22/1999 | 2308 | 08/30/1999 | 2345 |
| 05/18/1998 | 1513 | 05/20/1998 | 0020 |
| 03/23/1998 | 1535 | 03/25/1998 | 1732 |
| 05/11/1998 | 1535 | 05/14/1998 | 0048 |
| Subject: | NSA/NIMFR/C1 - Missing data |
| DataStreams: | nsanimfrC1.b1, nsanimfrC1.a0 |
| Description: | Data are missing and unrecoverable. |
| Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/16/2007 | 0000 | 02/11/2008 | 1135 |
| Subject: | NSA/SKYRAD/C1 - IRT mirror heater failure |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| Description: | The heater of the IRT gold mirror failed due to a broken wire (that probably occurred on 12/13 during maintenance of the solar tracker) allowing snow and frost to accumulate on the mirror until it was cleared during daily preventative maintenance. The problem was corrected when the heater wires were replaced. |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/06/2008 | 1800 | 06/19/2008 | 2000 |
| Subject: | NSA/MFRSR/C1 - Sensor shading problem |
| DataStreams: | nsamfrsrC1.00, nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
| Description: | Immediately following the post winter re-installation, a shading problem is evident between the hours of 1900 and 0200 (spans midnight). This continues until 4/10/2008 when an attempt was made to resolve the problem. It helped some, but shifted the shading problem between the hours of 0200 - 1900. On 6/19/2008 site maintenance resolved the problem. |
| Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsraod1michC1.c1:
nsamfrsrlangleyC1.c1:
nsamfrsrC1.00:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/06/2008 | 1500 | 03/29/2008 | 0000 |
| Subject: | NSA/NIMFR/C1 - Tube heater malfunction |
| DataStreams: | nsanimfrC1.a0, nsanimfrC1.b1 |
| Description: | The instrument was installed after winter calibration and the tube heater was found to be operating erratically. The purpose of the heating the tube is to keep condensation from forming on the window. Though erratic, the tube temperature was generally warm enough that no condensation should have formed. There was never any evidence of this in the irradiance data. Since it is not believed to have affected the adversely, this DQR is being assigned as transparent. |
| Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/17/2008 | 0632 | 04/23/2008 | 1815 |
| Subject: | NSA/SKYRAD/C1 - Direct and Diffuse incorrect |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| Description: | The short_direct_normal (NIP) instrument and cable were damaged by tracker rewind malfunction. Tracker and NIP replaced on 4/22 2200GMT but tracker not operational until 4/23 1815GMT. Thus, down_short_diffuse_hemisp (8-48) was not shaded 4/22 to 4/23. Do not use 8-48 data from 4/22 to 4/23. NIP data is not recoverable during entire time but can be estimated using component sum for each 1 minute data: Direct = (global - diffuse)/cos(zenith angle) |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/21/2008 | 1800 | 04/22/2008 | 0100 |
| Subject: | NSA/NIMFR/C1 - Instrument heater not functioning |
| DataStreams: | nsanimfrC1.b1, nsanimfrC1.a0 |
| Description: | For a short period the instrument heater was not functioning. Do not use data covered by this DQR. Could look at the MFRSR, but it has been experiencing shading issues. This is a very short period of data, so not much is lost. |
| Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/27/2008 | 2000 | 06/30/2008 | 1740 |
| Subject: | NSA/SKYRAD/C1 - Tracker inoperative |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| Description: | Tracker stopped working at this site during the time range specified. Reason for failure is unknown. Tracker power cycled and restarted by maintenance 06/30 2008 1740 GMT. The short_direct_normal (NIP) and down_short_diffuse_hemisp (8-48) data are bad during this time. Data are not recoverable. |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/10/1998 | 2200 | 01/20/1999 | 0059 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/20/1999 | 0100 | 03/04/1999 | 1506 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/09/1999 | 2138 | 03/03/1999 | 1200 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/06/1998 | 0000 | 05/13/1998 | 2152 |
| Subject: | NSA/GNDRAD/C1 - IRT incorrect |
| DataStreams: | nsagndrad60sC1.a1 |
| Description: | The IRT data were very noisy and unrepresentative. |
| Measurements: | nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/13/1998 | 2152 | 06/04/1998 | 2208 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/20/2008 | 0330 | 09/15/2008 | 1930 |
| 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:
nsagndrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/03/2000 | 0000 | 03/03/2003 | 2359 |
| 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:
nsagndrad60sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/06/2000 | 2321 | 10/08/2000 | 2247 |
| 10/11/1999 | 2124 | 10/14/1999 | 0022 |
| 04/17/2011 | 0000 | 06/27/2011 | 1815 |
| 02/26/2009 | 0000 | 05/04/2009 | 2200 |
| 06/25/2001 | 1800 | 06/27/2001 | 1800 |
| 04/16/2003 | 2302 | 04/19/2003 | 0102 |
| 06/29/2003 | 1602 | 07/01/2003 | 2002 |
| 05/19/2001 | 1800 | 05/21/2001 | 0100 |
| 08/22/1999 | 2334 | 08/30/1999 | 2317 |
| 10/01/1999 | 2201 | 10/04/1999 | 0039 |
| 03/19/1999 | 2019 | 03/29/1999 | 2017 |
| 10/22/1998 | 1258 | 10/26/1998 | 2319 |
| 04/11/1998 | 0410 | 04/14/1998 | 1052 |
| 04/24/1998 | 1603 | 04/30/1998 | 0049 |
| 08/18/1998 | 1811 | 08/20/1998 | 1730 |
| 10/17/1998 | 0024 | 10/20/1998 | 1606 |
| Subject: | NSA/MFRSR/C1 - Missing data |
| DataStreams: | nsamfrsrC1.b1, nsamfrsrC1.a0 |
| Description: | Data are missing and unrecoverable. |
| Measurements: | nsamfrsrC1.a0:
nsamfrsrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/01/1999 | 0000 | 12/22/2000 | 2020 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/18/2008 | 0000 | 09/20/2008 | 2359 |
| Subject: | NSA/MET/C1 - Temp/RH/wind data questionable |
| DataStreams: | nsametC1.b1, nsatwrC1.b1 |
| Description: | New wind sensors and new T/RH probes were being installed during this time period. The tower booms were lowered and much of the data collected were not at listed heights nor were the data accurate due to configurations during install. |
| Measurements: | nsametC1.b1:
nsatwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/10/2008 | 1220 | 10/10/2008 | 1750 |
| 10/11/2008 | 0700 | 10/11/2008 | 1100 |
| 11/07/2008 | 0652 | 11/08/2008 | 1903 |
| 11/22/2008 | 1400 | 11/24/2008 | 0310 |
| 11/25/2008 | 1900 | 11/27/2008 | 0300 |
| 02/13/2009 | 1450 | 02/18/2009 | 1800 |
| Subject: | NSA/MET/C1 - PWS data missing due to snow impaction |
| DataStreams: | nsametC1.b1 |
| Description: | Blizzard conditions caused the optics to become impacted with snow and ice rendering the Present Weather Detector inoperative. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/01/2008 | 0000 | 12/18/2008 | 2100 |
| Subject: | NSA/MET/C1 - Wind data intermittent |
| DataStreams: | nsametC1.b1, nsatwrC1.b1 |
| Description: | There was a loose wire on the serial data multiplexer causing the wind data to become missing during high wind situations. The high winds caused the enclosure to vibrate making the connection intermittent. |
| Measurements: | nsametC1.b1:
nsatwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/29/2008 | 1800 | 11/30/2008 | 1730 |
| 12/29/2008 | 1500 | 12/30/2008 | 0800 |
| 01/01/2009 | 0138 | 01/02/2009 | 0447 |
| 01/04/2009 | 0624 | 01/06/2009 | 1428 |
| 01/07/2009 | 1740 | 01/08/2009 | 1720 |
| 01/14/2009 | 0930 | 01/14/2009 | 2103 |
| Subject: | NSA/MET/C1 - CMH data missing |
| DataStreams: | nsametC1.b1 |
| Description: | The data from the CMH was missing during these times due to a failing logic board. The board was replaced. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/08/2009 | 2244 | 06/11/2009 | 2037 |
| Subject: | NSA/MET/C1 - Met data incorrect during calibration |
| DataStreams: | nsametC1.b1, nsatwrC1.b1 |
| Description: | All met data from the tower booms (temp, RH, winds and derived variables) were incorrect due to the booms being lowered from their measurement heights. Additionally, the scaffolding was located directly adjacent to the booms affecting the wind field and the Temp/RH data. |
| Measurements: | nsametC1.b1:
nsatwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/10/2009 | 0014 | 06/10/2009 | 0130 |
| Subject: | NSA/MET/C1 - PWS calibration |
| DataStreams: | nsametC1.b1 |
| Description: | The PWS was undergoing calibration. Any data collected during this time is not representative of the atmospheric state. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/10/2009 | 0159 | 06/10/2009 | 1940 |
| Subject: | NSA/MET/C1 - CMH calibration |
| DataStreams: | nsametC1.b1 |
| Description: | CMH data missing due to removal of the sensor for annual calibration. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/05/2009 | 0000 | 08/11/2009 | 1830 |
| Subject: | NSA/MFRSR/C1 - Shadowband misalignment |
| DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
| Description: | There is a minor shading issue at high zenith angles (0530 - 1630 UTC). Due to extremely persistent cloudy conditions, maintenance was not attempted until 20090811. Cloudy conditions persisted, and it was never clear from the data if the instrument was shading properly at high zenith angles. Therefore, the DQR end date is listed as the time maintenance was performed. |
| Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsraod1michC1.c1:
nsamfrsrlangleyC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/13/2009 | 2215 | 07/08/2009 | 2250 |
| Subject: | NSA/MET/C1 - 2m RH values incorrect |
| DataStreams: | nsametC1.b1, nsatwrC1.b1 |
| Description: | The new t/rh probe installed during annual calibrations and checks began to exhibit readings that were biased high compared to the Chilled Mirror Hygrometer. In high RH conditions the sensor would consistently report RH values in excess of 105%. Comparisons to the other tower levels also suggested that the 2m level RH data is suspect. |
| Measurements: | nsametC1.b1:
nsatwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/23/2010 | 0513 | 02/05/2010 | 2100 |
| Subject: | NSA/MET/C1 - CMH and 10m winds failure |
| DataStreams: | nsametC1.b1 |
| Description: | At 0513GMT on 1/23 the atmos_pressure and CMH - temp, RH, DP & Sat. VP changed abruptly to unlikely values. The 10m winds failed at 1420GMT. The CMH was repaired on 02/04/2010 at 2254GMT and the 10m winds sensor was replaced on 02/05/2010 at 2100GMT. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/09/2010 | 1500 | 02/09/2010 | 2300 |
| 01/18/2010 | 0345 | 01/21/2010 | 0030 |
| 01/24/2010 | 1930 | 01/26/2010 | 0800 |
| Subject: | NSA/SKYRAD/C1 - Frosting/Condensation |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| Description: | The down_long_hemisp1 varied up to 40 W/m^2 higher than down_long_hemisp2 during the affected time periods. Cold temperatures reported by the IRT suggest the issue is with PIR1. Icing or frost on PIR1 or within the ventilator may be to blame but ops reports can't substantiate this. Data from PIR1 should be avoided during these suspect time periods. |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/25/2010 | 0000 | 04/07/2010 | 2300 |
| Subject: | NSA/CSPHOT/C1 - Instrument Problems |
| DataStreams: | nsacsphotalm1duboC1.a1, nsacsphotalmC1.a1, nsacsphotaotC1.a1, nsacsphotaotfiltC1.a1, nsacsphotaotfiltqaC1.a1, nsacsphotcoarsepfn1C1.a1, nsacsphotfinepfn1C1.a1, nsacsphotppC1.a1, nsacsphotsizeC1.a1, nsacsphottotalpfn1C1.a1 |
| Description: | Data should not be used during this time period due to problems relating to re-installation of the instrument after calibration. Problems were resolved by April 8, 2010. |
| Measurements: | nsacsphotaotfiltqaC1.a1:
nsacsphotaotfiltC1.a1:
nsacsphotcoarsepfn1C1.a1:
nsacsphotalmC1.a1:
nsacsphotaotC1.a1:
nsacsphotsizeC1.a1:
nsacsphottotalpfn1C1.a1:
nsacsphotfinepfn1C1.a1:
nsacsphotppC1.a1:
nsacsphotalm1duboC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/23/2010 | 1943 | 04/26/2010 | 1903 |
| Subject: | NSA/MET/C1 - CMH Data Missing |
| DataStreams: | nsametC1.b1 |
| Description: | The GFCI had tripped causing the CMH to lose power. All CMH variables are missing except CMHRH which reports 100% for the entire time. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/19/2010 | 2102 | 05/07/2010 | 2359 |
| Subject: | NSA/NIMFR/C1 - Instrument noise (channels 870 and 940 |
| DataStreams: | nsanimfrC1.a0, nsanimfrC1.b1, nsanimfraod1michC1.c1, nsanimfrlangleyC1.c1, nsanimfrlangplotC1.c1 |
| Description: | Channels 870 and 940 were experiencing frequent drop outs. |
| Measurements: | nsanimfrlangleyC1.c1:
nsanimfrlangplotC1.c1:
nsanimfrC1.a0:
nsanimfraod1michC1.c1:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/25/2010 | 1730 | 07/07/2010 | 2200 |
| Subject: | NSA/MET/C1 - CMH Sent to Vendor for Repair |
| DataStreams: | nsametC1.b1 |
| Description: | CMH connector on the transmitter enclosure that goes to the head unit degraded and failed. System was removed and sent to the manufacturer for repair. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/09/2002 | 1000 | 08/02/2002 | 1200 |
| 05/09/2003 | 1000 | 08/02/2003 | 1200 |
| 05/09/2004 | 1000 | 08/02/2004 | 1200 |
| 05/09/2005 | 1000 | 08/02/2005 | 1200 |
| 05/09/2006 | 1000 | 08/02/2006 | 1200 |
| 05/09/2007 | 1000 | 08/02/2007 | 1200 |
| 05/09/2008 | 1000 | 08/02/2008 | 1200 |
| 05/09/2009 | 1000 | 08/02/2009 | 1200 |
| Subject: | NSA/NIMFR/C1 - Localized obstructions near horizon block direct beam |
| DataStreams: | nsanimfrC1.a0, nsanimfrC1.b1, nsanimfraod1michC1.c1, nsanimfrlangleyC1.c1 |
| Description: | Near midnight during periods of 24hr (or near 24hr) sun, there are local obstructions that partially to completely block the direct beam, causing a reduction in instrument signal. |
| Measurements: | nsanimfrlangleyC1.c1:
nsanimfrC1.a0:
nsanimfraod1michC1.c1:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/18/2010 | 1900 | 06/08/2010 | 0000 |
| Subject: | NSA/MFRSR/C1 - Shadowband Misalignment |
| DataStreams: | nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1, nsamfrsrC1.a0 |
| Description: | Shading issue was present in the early morning and late in the day, near those times when the sun was lowest in the sky. Issue was resolved sometime on 06/07/2010 |
| Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsraod1michC1.c1:
nsamfrsrlangleyC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/01/2010 | 1208 | 12/09/2010 | 2259 |
| Subject: | NSA/MET/C1 - CMH offline |
| DataStreams: | nsametC1.b1 |
| Description: | CMH removed for repair. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/23/2010 | 1543 | 11/05/2010 | 0716 |
| Subject: | NSA/MET/C1 - 10m wind sensor offline |
| DataStreams: | nsametC1.b1 |
| Description: | The 10m wind sensor values were 0 m/s and 000 for wind direction. The sensor lost communications. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/24/2011 | 1800 | 02/10/2011 | 2300 |
| Subject: | NSA/MET/C1 - CMH offline |
| DataStreams: | nsametC1.b1 |
| Description: | Beginning 1/24/2011, the CMH went offline resulting in missing temperature and dewpoint measurements and erroneous vapor pressure, saturation vapor pressure, and RH measurements. Problem fixed with a power cycle. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/15/2011 | 0900 | 05/28/2011 | 0010 |
| Subject: | NSA/MET/C1 - CMH Failure |
| DataStreams: | nsametC1.b1 |
| Description: | The Chilled Mirror Hydrometer (CMH) developed a short in the wiring harness. All CMH data missing or incorrect during the period listed. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/17/2011 | 0200 | 07/20/2011 | 1823 |
| Subject: | NSA/MET/C1 - Wind sensor data missing |
| DataStreams: | nsametC1.b1, nsatwrC1.b1 |
| Description: | 2m, 10m, 20m wind sensors went off-line 5/17 due to GFCI tripping caused by failing CMH. The 2m and 20m data wind sensor returned 6/6, but the 10m remained offline until 7/20 as the sensor was damaged. |
| Measurements: | nsametC1.b1:
nsatwrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/20/2011 | 2211 | 07/25/2011 | 1842 |
| 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:
nsagndrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/20/2011 | 2229 | 07/25/2011 | 1843 |
| Subject: | NSA/SKYRAD/C1 - Reprocessed: Incorrect calibration coefficients |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| Description: | On 7/20/2011 starting 2229GMT ops replaced the Skyrad shortwave instruments (PSP/8-48/NIP) corresponding to the datastreams (down_short_hemisp, down_short_diffuse_hemisp, short_direct_normal) but the calibration coefficients weren't changed until 07/25/2011 1842GMT. Data were reprocessed and archived in September 2011. |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/27/2011 | 1700 | 05/02/2011 | 0100 |
| Subject: | NSA/SKYRAD/C1 - Incorrect data during power outage |
| DataStreams: | nsaskyrad20sC1.a0, nsaskyrad60sC1.b1 |
| Description: | During a power outage the downwelling diffuse 8-48 and the downwelling shortwave direct were incorrect. The IRT was also affected during this time period. |
| Measurements: | nsaskyrad60sC1.b1:
nsaskyrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/27/2011 | 1700 | 05/02/2011 | 0100 |
| 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:
nsagndrad20sC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/23/2011 | 1857 | 09/07/2011 | 2200 |
| Subject: | NSA/MFRSR/C1 - Shadowband failure |
| DataStreams: | nsamfrsrC1.a0, nsamfrsrC1.b1, nsamfrsraod1michC1.c1, nsamfrsrlangleyC1.c1, nsamfrsrlangplotC1.c1 |
| Description: | The shadowband operation was not functioning during the specified period resulting in essentially useless data. Do not use these data. |
| Measurements: | nsamfrsrlangplotC1.c1:
nsamfrsrC1.a0:
nsamfrsrC1.b1:
nsamfrsraod1michC1.c1:
nsamfrsrlangleyC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 11/06/2011 | 0758 | 11/19/2011 | 0800 |
| Subject: | NSA/MET/C1 - CMH communication failure |
| DataStreams: | nsametC1.b1 |
| Description: | CMH lost communication with datalogger. All values from CMH were -6999 during this time resulting in the CMHRH flatlining at 100%. Communications was intermittent during entire time period. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/07/2011 | 2215 | 12/07/2011 | 2330 |
| 12/08/2011 | 0145 | 12/08/2011 | 1345 |
| 12/25/2011 | 0300 | 12/25/2011 | 0630 |
| 01/02/2012 | 1600 | 01/03/2012 | 1900 |
| 01/05/2012 | 0330 | 01/06/2012 | 0030 |
| 01/07/2012 | 1130 | 01/08/2012 | 0100 |
| 01/08/2012 | 0730 | 01/08/2012 | 0800 |
| 01/08/2012 | 1130 | 01/09/2012 | 0000 |
| 01/14/2012 | 0800 | 01/14/2012 | 1545 |
| 01/16/2012 | 1945 | 01/17/2012 | 1945 |
| 01/18/2012 | 1800 | 01/18/2012 | 1900 |
| 03/04/2012 | 0000 | 03/04/2012 | 0200 |
| 12/04/2011 | 1300 | 12/04/2011 | 1730 |
| 12/05/2011 | 0000 | 12/05/2011 | 2100 |
| 12/05/2011 | 2130 | 12/07/2011 | 0645 |
| Subject: | NSA/MET/C1 - CMH failure |
| DataStreams: | nsametC1.b1 |
| Description: | Starting 14:17 GMT on 12/4/2011 the CMH Dew Point began reporting missing value, CMH relative humidity was flat-lining at 100% and CMH saturated vapor pressure was flat-lined at a high value. This condition continued very intermittently for several months. Issue was frosting and a failed ventilation fan. |
| Measurements: | nsametC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/09/2012 | 0000 | 06/14/2012 | 2359 |
| Subject: | NSA/CSPHOT/C1 - Tracking failure |
| DataStreams: | nsacsphotalm1duboC1.a1, nsacsphotalmC1.a1, nsacsphotaotC1.a1, nsacsphotaotfiltC1.a1, nsacsphotaotfiltqaC1.a1, nsacsphotcoarsepfn1C1.a1, nsacsphotfinepfn1C1.a1, nsacsphotppC1.a1, nsacsphotsizeC1.a1, nsacsphottotalpfn1C1.a1 |
| Description: | Instrument was not acquiring the sun due to a problem with the head leveling. Data during this period are questionable. |
| Measurements: | nsacsphotaotfiltqaC1.a1:
nsacsphotaotfiltC1.a1:
nsacsphotcoarsepfn1C1.a1:
nsacsphotalmC1.a1:
nsacsphotaotC1.a1:
nsacsphotsizeC1.a1:
nsacsphottotalpfn1C1.a1:
nsacsphotfinepfn1C1.a1:
nsacsphotppC1.a1:
nsacsphotalm1duboC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 08/21/1998 | 0000 | 10/22/1998 | 2200 |
| Subject: | NSA/TOWER - Mislabeled tower sensors |
| DataStreams: | nsamettwrC1.a1, nsametC1.00 |
| Description: | The NSA tower data displayed on the local computer screen had the height mislabeled. Data written to files were correct. When the data acquisition program was fixed on 22 OCT 1998, only the computer display was changed. |
| Measurements: | nsamettwrC1.a1:
nsametC1.00:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/09/1998 | 0000 | 12/12/1998 | 2359 |
| Subject: | NSA/SKYRAD - Barrow SKYRAD PIRD Misconfiguration 12/9 - 12/12/98 |
| DataStreams: | nsaskyrad20sC1.a1, nsaskyrad60sC1.a1 |
| Description: | The PIRD was incorrectly set from 12/9/98 to 12/12/98 that resulted in an error of approximately 3.7% (was set to 243902 instead of 235294). |
| Measurements: | nsaskyrad60sC1.a1:
nsaskyrad20sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 02/14/1998 | 0130 | 04/19/1999 | 2359 |
| Subject: | NSA/SKYRAD/C1 - Incorrect 20s dome thermistor data |
| DataStreams: | nsaskyrad20sC1.a1 |
| Description: | The 30-second and 50-second PIR2 diffuse dome thermistor data in all skyrad 20s data records taken to data is in fact case thermistor data. No other data are affected. The 20 second skyrad data cannot be used to recompute the diffuse PIR2 data. Note: This data was named pir2_dome_therm at the beginning of this time range andlater the variable was renamed to inst_down_lng_shaded2_dome_resist. |
| Measurements: | nsaskyrad20sC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/13/1999 | 0000 | 04/14/1999 | 2359 |
| Subject: | NSA/MFR10M/C1 - Instrument rotated skyward to check calibration |
| DataStreams: | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| Description: | For purposes of checking the calibration stability, the GNDMFR at the NSA Barrow was turned upside down for two days (19990413-19990414). So instead of looking at the ground, this instrument was pointed toward the zenith. When the GNDMFR was turned outside down and compared with the MFRSR data, very good agreement between the two data streams was observed. This indicates that both instruments' calibrations are remaining stable. |
| Measurements: | nsamfr10mC1.b1:
nsamfr10mC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/10/1999 | 0110 | 06/10/1999 | 2030 |
| Subject: | NSA/MFR10M/C1 - Instrument rotated skyward to check calibration |
| DataStreams: | nsamfr10mC1.a0, nsamfr10mC1.b1 |
| Description: | On 19990609 at about 16:10 LST the instrument was flipped upside down so that it was pointed directly at the zenith to assess the calibration stability of the both the MFR10m and the MFRSR. This test revealed agreement between the two instruments that ranged from 0.5 to 2.5%, depending on the wavelength channel under consideration. The average "error" is 1.5%. This is reasonably good agreement between the two instruments, and there is no evidence of gross calibration problems. The test ended on 19990610 at about 11:30 LST, at which time the MFR10m was positioned to point towards the ground. |
| Measurements: | nsamfr10mC1.b1:
nsamfr10mC1.a0:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/06/1998 | 2156 | 12/22/2000 | 2020 |
| 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:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/08/1999 | 0000 | 11/01/1999 | 2200 |
| Subject: | NSA/NIMFR/C1 - Bad irradiance data |
| DataStreams: | nsanimfrC1.a0, nsanimfrC1.b1 |
| Description: | The NIMFR at the NSA site failed on 99/10/08 due to a faulty connector. The head temperature and board voltage are OK, but all irradiance data is bad. The connector was cleaned on 99/11/01 and the irradiance data started flowing again. |
| Measurements: | nsanimfrC1.a0:
nsanimfrC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/08/1999 | 2200 | 10/25/1999 | 2300 |
| Subject: | NSA/METTOWER - Questionable NSA Met-tower wind data |
| DataStreams: | nsamettwrC1.a1, nsametC1.00 |
| Description: | The data analysis software for the NSA Met_tower system was upgraded at 2200 GMT on 8 SEP 1999. The upgrade included replacement of missing data with -99.99's when the routine that polled the Met-tower sensors timed out. This resulted in large negative spikes in the 1-min averages. These spikes almost always occurred during the first several 1-min periods of a half-hour data processing routine. On 25 OCT 1999 at 2300 the routine that replaced missing data was changed to insert the previous 1-min averaged data instead of -99.99. Since at the most only one or two values are missing in ay averaging period, this change results in a reasonable estimate of the true mean values |
| Measurements: | nsamettwrC1.a1:
nsametC1.00:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/08/1999 | 2200 | 11/15/1999 | 2200 |
| Subject: | NSA/METTOWER - Questionable NSA Met-tower wind data |
| DataStreams: | nsamettwrC1.a1, nsametC1.00 |
| Description: | The data analysis software for the NSA Met-tower system was upgraded at 2200 GMT on 8 SEP 1999. The upgrade included insertion of -99.99's for the wind vectors when the wind speed or direction were either missing or equal to 0. This resulted in incorrect vector averaged wind speed, wind direction, and standard deviation of wind direction. When this occurred, the vector-averaged wind speed and standard deviation of wind direction were often abnormally high and the vector-averaged wind direction was often approximately 225 deg. Starting at 2300 GMT on 25 OCT 99 missing wind data were replaced by the previous 1-min average and starting at 2200 GMT on 15 NOV 1999 the computed wind vectors were used whenever wind speeds or wind directions were 0. |
| Measurements: | nsamettwrC1.a1:
nsametC1.00:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/24/1998 | 0000 | 11/29/1999 | 2000 |
| Subject: | NSA/METOWER - Reprocess: Incorrect NSA wind direction minima and maxima |
| DataStreams: | nsamettwrC1.a1, nsametC1.00 |
| Description: | From the time of installation of the NSA C1 Met-tower system on 24 MAR 1998 until 29 NOV 1999 all wind direction minima and maxima were reported as raw (unrotated) data. In order to obtain correct minima and maxima 30 deg must be subtracted from the value. All mean wind directions were computed from rotated (corrected) data. |
| Measurements: | nsamettwrC1.a1:
nsametC1.00:
|