| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D020823.20 | NSA/AERI/C1 - AERI Detector Cooler Failure | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D020823.21 | NSA/AERI/C1 - Data Spikes due to power outage | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D020823.23 | NSA/AERI/C1 - Data Suspect Due to Instrument Maintenance | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D020823.25 | NSA/AERI/C1 - Loss of Temperature Stabilization | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D020823.26 | NSA/AERI/C1 - Data discontinuous | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D020823.27 | NSA/AERI/C1 - External Temperature Sensor Failed | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D021113.6 | NSA/AERI/C1 - AERI extended range detector at Barrow | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D030203.1 | NSA/AERI/C1 - Failure of AERI cryogenic cooler | nsaaeriC1.00, nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D030203.2 | NSA/AERI/C1 - Failure of AERI cryogenic cooler | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D030415.1 | NSA/AERI/C1 - Failure of AERI cryogenic cooler | nsaaeriC1.00, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D040909.1 | NSA/AERI/C1 - Data file header manipulated | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| D051102.2 | NSA/GNDRAD/C1 - PIR measurement | nsagndrad20sC1.a0 |
| D060209.4 | NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors | nsagndradC1.00, nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
| D060824.1 | NSA/GNDRAD/C1 - Incorrect calibration coefficients | nsagndradC1.00, nsagndrad20sC1.a0, nsagndrad20sC1.a1, nsagndrad60sC1.b1 |
| D070910.3 | NSA/RWP/C1 - Instrument problem | nsa915rwpwindconC1.a1, nsa915rwpwindmomC1.a0, nsa915rwpwindspecC1.a0 |
| D071010.1 | NSA/GNDRAD/C1 - Preventive maintenance | nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
| D071025.3 | NSA/GNDRAD/C1 - Reprocessed: Incorrect calibration coefficient | nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
| D080904.5 | NSA/GNDRAD/C1 - Upwelling PIR ventilator fan failure | nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
| D090629.5 | NSA/RWP/C1 - Missing data blocks | nsa915rwptempconC1.a1, nsa915rwptempmomC1.a0, nsa915rwpwindconC1.a1, nsa915rwpwindmomC1.a0, nsa915rwptempspecC1.a0, nsa915rwpwindspecC1.a0 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/18/2001 | 0000 | 10/24/2001 | 2359 |
| Subject: | NSA/AERI/C1 - AERI Detector Cooler Failure |
| DataStreams: | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | .The data is very noisy due to failure of the detector cooler to keep the detector at the set temperature. |
| Measurements: | nsaaerich2C1.a1:
nsaaerisummaryC1.a1:
nsaaerich1C1.a1:
nsaaeriengineerC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 08/19/1999 | 1830 | 08/19/1999 | 2000 |
| Subject: | NSA/AERI/C1 - Data Spikes due to power outage |
| DataStreams: | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | Spike in continuous data record from a power outage. |
| Measurements: | nsaaerich2C1.a1:
nsaaerisummaryC1.a1:
nsaaerich1C1.a1:
nsaaeriengineerC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/08/1999 | 0000 | 12/11/1999 | 2359 |
| Subject: | NSA/AERI/C1 - Data Suspect Due to Instrument Maintenance |
| DataStreams: | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | Conner and Ralph worked on the AERI during this week, so the data quality is questionable during this time period. |
| Measurements: | nsaaerich2C1.a1:
nsaaerisummaryC1.a1:
nsaaerich1C1.a1:
nsaaeriengineerC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/19/2001 | 1700 | 04/30/2001 | 2359 |
| Subject: | NSA/AERI/C1 - Loss of Temperature Stabilization |
| DataStreams: | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | Instrument lost temperature stabilization on 4/19 @ 1700 and data became very noisy and was shut down at 2300 (GMT). Turned back on 4/21 still look like detector temperature is to high, data very noisy. Production of good data resumed on 05/01/01. |
| Measurements: | nsaaerich2C1.a1:
nsaaerisummaryC1.a1:
nsaaerich1C1.a1:
nsaaeriengineerC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 08/20/1999 | 1600 | 08/20/1999 | 2359 |
| Subject: | NSA/AERI/C1 - Data discontinuous |
| DataStreams: | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | Large unreasonable step in continous data record with slow progression toward original state. |
| Measurements: | nsaaerich2C1.a1:
nsaaerisummaryC1.a1:
nsaaerich1C1.a1:
nsaaeriengineerC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/16/1999 | 0000 | 12/10/1999 | 2359 |
| 09/07/2001 | 0000 | 09/09/2001 | 2359 |
| 10/28/2001 | 0130 | 10/28/2001 | 0200 |
| Subject: | NSA/AERI/C1 - External Temperature Sensor Failed |
| DataStreams: | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | There appear to have been some problem with the external temperature sensor. The outside temperature sensor data is not used in the derivation of the spectral IR data and are just a diagnostic tool. We have not found what caused this behaviour. |
| Measurements: | nsaaerich2C1.a1:
nsaaerisummaryC1.a1:
nsaaeriengineerC1.a1:
nsaaerich1C1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 04/18/2002 | 0132 | 05/16/2002 | 1830 |
| Subject: | NSA/AERI/C1 - AERI extended range detector at Barrow |
| DataStreams: | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | The extended range detector had failed and a borrowed replacement detector was installed. The replacement detector had enough air present in the dewar to cause the cryogenic cooler to work at full current. The detector was still warmer than optimal and there is more noise present in the data than is considered normal. The data must be used with discretion. The system was shut off on 020516 due to noise and rising detector temperatures. |
| Measurements: | nsaaerich2C1.a1:
nsaaerisummaryC1.a1:
nsaaerich1C1.a1:
nsaaeriengineerC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/20/2003 | 1835 | 01/25/2003 | 0041 |
| Subject: | NSA/AERI/C1 - Failure of AERI cryogenic cooler |
| DataStreams: | nsaaeriC1.00, nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | Failure of the cryogenic cooler for the AERI detector resulted in the instrument being shut down during the interval January 20, 2003 @1835GMT until January 25, 2003 @0041GMT, when a new cryogenic cooler was installed. All data are missing for this period. Data after the new cooler was installed are within normal acceptable limits. |
| Measurements: | nsaaeriC1.00:
nsaaerich2C1.a1:
nsaaerisummaryC1.a1:
nsaaerich1C1.a1:
nsaaeriengineerC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/17/2003 | 1749 | 01/20/2003 | 1835 |
| Subject: | NSA/AERI/C1 - Failure of AERI cryogenic cooler |
| DataStreams: | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | In January 2003, the cryogenic cooler current for the Barrow, AERI detector was steadily increasing. This increase is a sign of cooler failure. On January 16,2003, the cooler began to make noise. The cooler was shut-off on January 17,2003 and any condensed gases were allowed to vent. Condensed gases in the detector dewar cause a cooler to work harder and increase the current. The cooler was then resealed and turned on. However, the cooler did not recover and the current was at a maximum. The cooler was unable to completely cool the detector and the detector never achieved a temperature below 72K. Higher detector temperature increases instrument noise. The instrument was shut off on January 20, 2003 at 1835GMT to prevent a catatrophic failure due to complete cooler failure and repressurization of the detector dewar, which would result in a subsequent implosion of the dewar. |
| Measurements: | nsaaerich2C1.a1:
nsaaerisummaryC1.a1:
nsaaerich1C1.a1:
nsaaeriengineerC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/27/2003 | 2102 | 04/10/2003 | 2214 |
| Subject: | NSA/AERI/C1 - Failure of AERI cryogenic cooler |
| DataStreams: | nsaaeriC1.00, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | The cryogenic cooler current reached its maximum value, which indicates a potential failure of the cooler unit. The effect of the cooler failure is an increase in detector temperature. Detector temperature is normally 69K. At temperatures in excess of 72K, the long wave responsivity decreases due to detector noise. During the period of March 27, 2003 @ 21:02 GMT through April 10, 2003 @ 23:42 GMT, the cooler current was at its maximum and detector temperatures varied from 72-75K. The increase in detector noise may affect some calculations. |
| Measurements: | nsaaeriC1.00:
nsaaerisummaryC1.a1:
nsaaeriengineerC1.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/21/1999 | 0000 | 03/21/1999 | 2359 |
| 03/24/1999 | 0000 | 03/24/1999 | 2359 |
| Subject: | NSA/AERI/C1 - Data file header manipulated |
| DataStreams: | nsaaerich1C1.a1, nsaaerich2C1.a1, nsaaerisummaryC1.a1, nsaaeriengineerC1.a1 |
| Description: | The NSA.C1 AERI data for 19990321 and 19990324 were processed on July 23, 2004 using version 1.24 of the ingest. This resulted in the creation of .b1 level data files. Because the other March 1999 data are .a1 level data files, the .b1 files were modified using nc_tools (nc_copy, ncvarrename, ncattcopy) to create .a1 level data files. The data in the files were not changed in anyway. Only header modifications were made. The user may notice small header differences between these files and others from March 1999. |
| Measurements: | nsaaerich2C1.a1:
nsaaerisummaryC1.a1:
nsaaerich1C1.a1:
nsaaeriengineerC1.a1:
|
| 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 |
|---|---|---|---|
| 02/07/2006 | 0910 | 02/07/2006 | 2350 |
| Subject: | NSA/GNDRAD/C1 - power outage affecting some GNDRAD sensors |
| DataStreams: | nsagndradC1.00, nsagndrad20sC1.a0, nsagndrad60sC1.b1 |
| 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 |
|---|---|---|---|
| 08/11/2006 | 1930 | 08/25/2006 | 1859 |
| Subject: | NSA/GNDRAD/C1 - Incorrect calibration coefficients |
| DataStreams: | nsagndradC1.00, nsagndrad20sC1.a0, nsagndrad20sC1.a1, nsagndrad60sC1.b1 |
| 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 |
|---|---|---|---|
| 08/22/2007 | 2010 | 12/13/2007 | 2310 |
| Subject: | NSA/RWP/C1 - Instrument problem |
| DataStreams: | nsa915rwpwindconC1.a1, nsa915rwpwindmomC1.a0, nsa915rwpwindspecC1.a0 |
| Description: | When data returned to ingest the windcon wind direction and wind speeds are not comparing well with the co-located sondes. Wind direction values are constant, with no changes. Problem is that the phase shifter wiring was bad when it was reinstalled. |
| Measurements: | nsa915rwpwindspecC1.a0:
nsa915rwpwindconC1.a1:
nsa915rwpwindmomC1.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 |
|---|---|---|---|
| 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 |
|---|---|---|---|
| 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 |
|---|---|---|---|
| 06/01/2009 | 1600 | 06/01/2009 | 1700 |
| 06/12/2009 | 1600 | 06/12/2009 | 1700 |
| 06/19/2009 | 1600 | 06/18/2009 | 1700 |
| 06/22/2009 | 1600 | 06/22/2009 | 1700 |
| 06/26/2009 | 1600 | 06/26/2009 | 1700 |
| 06/29/2009 | 1600 | 06/29/2006 | 1700 |
| Subject: | NSA/RWP/C1 - Missing data blocks |
| DataStreams: | nsa915rwptempconC1.a1, nsa915rwptempmomC1.a0, nsa915rwpwindconC1.a1, nsa915rwpwindmomC1.a0, nsa915rwptempspecC1.a0, nsa915rwpwindspecC1.a0 |
| Description: | The nsa915rwpC1 instrument was being re-booted at the end of the hour resulting in the unnecessary data loss. The time of re-boot was modified to the middle of the hour to avoid the 1-2 data loss period. |
| Measurements: | nsa915rwpwindspecC1.a0:
nsa915rwpwindconC1.a1:
nsa915rwptempmomC1.a0:
nsa915rwpwindmomC1.a0:
nsa915rwptempspecC1.a0:
nsa915rwptempconC1.a1:
|