DQR ID | Subject | Data Streams Affected |
---|---|---|
D090120.5 | SGP/AOS/C1 - Pump failure and subsequent failure of humidified nephelometer | sgpaosC1.a1 |
D090721.1 | SGP/AOS/C1 - Annual maintenance | sgpaip1ogrenC1.c1, sgpaipavg1ogrenC1.c1, sgpaosC1.a1, sgpaosauxC1.a1, sgpaosccnC1.a1 |
D101020.7 | SGP/AOS/C1 - Data processing problem | sgpaosC1.a1, sgpnoaaaosC1.b1, sgpnoaaaosavgC1.b1 |
D101214.3 | SGP/AOS/C1 - Missing data | sgpaosauxC1.a1, sgpaosccnC1.a1, sgpaosC1.a1 |
D110407.1 | SGP/AOS/C1 - Missing data | sgpaosccn100C1.a1, sgpaosclap3wC1.a1, sgpaoscpcC1.a1, sgpaosnephdryC1.a1, sgpaosnephwetC1.a1, sgpaospsap3wC1.a1 |
D110815.3 | SGP/AOS/C1 - Nephelometer shutter error | sgpaip1ogrenC1.c1, sgpaipavg1ogrenC1.c1, sgpaosnephdryC1.a1, sgpnoaaaosC1.b1, sgpnoaaaosavgC1.b1, sgpnoaaaosfitrhC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/19/2008 | 0112 | 01/06/2009 | 1912 |
Subject: | SGP/AOS/C1 - Pump failure and subsequent failure of humidified nephelometer |
DataStreams: | sgpaosC1.a1 |
Description: | The pump for the aerosol sampling system failed over a weekend. The humidifier continued to operate and soaked the inside of both the reference and wet nephelometers. The nephelometers were returned for repair. A replacement neph was installed on 2008-August 5 @1858 UTC. The nephs were repaired and returned to SGP in December 2008. The humidification system was rebuilt and installed on 2009 January 6 at 1912 UTC. |
Measurements: | sgpaosC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/06/2009 | 2000 | 07/10/2009 | 0000 |
Subject: | SGP/AOS/C1 - Annual maintenance |
DataStreams: | sgpaip1ogrenC1.c1, sgpaipavg1ogrenC1.c1, sgpaosC1.a1, sgpaosauxC1.a1, sgpaosccnC1.a1 |
Description: | The instruments were not connected to the inlet while they were being cleaned and calibrated. |
Measurements: | sgpaosC1.a1:
sgpaip1ogrenC1.c1:
sgpaipavg1ogrenC1.c1:
sgpaosauxC1.a1:
sgpaosccnC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/2009 | 0000 | 10/01/2010 | 0000 |
Subject: | SGP/AOS/C1 - Data processing problem |
DataStreams: | sgpaosC1.a1, sgpnoaaaosC1.b1, sgpnoaaaosavgC1.b1 |
Description: | The AOS data was reprocessed for the AMF, SGP and NSA sites. There was an error in the processing of the corrections for the PSAP absorption signal such that a low pass filter was implemented for the scattering data used in these corrections.The difference between the corrected and previous data is < 0.05 Mm-1 (below the instrument detection limit) and should not have a significant effect on the previous data. Data will be reprocessed at a later time when more significant changes to the data processing are implemented. |
Measurements: | sgpnoaaaosavgC1.b1:
sgpaosC1.a1:
sgpnoaaaosC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/22/2007 | 1829 | 12/24/2007 | 1500 |
04/26/2008 | 0100 | 04/28/2008 | 1539 |
05/13/2010 | 1018 | 05/18/2010 | 1427 |
08/21/2010 | 0119 | 08/23/2010 | 1248 |
10/18/2010 | 1238 | 10/19/2010 | 1624 |
10/29/2010 | 1620 | 11/01/2010 | 1348 |
01/15/2011 | 1616 | 01/18/2011 | 1602 |
Subject: | SGP/AOS/C1 - Missing data |
DataStreams: | sgpaosauxC1.a1, sgpaosccnC1.a1, sgpaosC1.a1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgpaosC1.a1:
sgpaosauxC1.a1:
sgpaosccnC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/31/2011 | 1800 | 04/03/2011 | 1912 |
Subject: | SGP/AOS/C1 - Missing data |
DataStreams: | sgpaosccn100C1.a1, sgpaosclap3wC1.a1, sgpaoscpcC1.a1, sgpaosnephdryC1.a1, sgpaosnephwetC1.a1, sgpaospsap3wC1.a1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgpaosclap3wC1.a1:
sgpaosnephdryC1.a1:
sgpaoscpcC1.a1:
sgpaospsap3wC1.a1:
sgpaosnephwetC1.a1:
sgpaosccn100C1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/25/2011 | 0000 | 08/03/2011 | 0000 |
Subject: | SGP/AOS/C1 - Nephelometer shutter error |
DataStreams: | sgpaip1ogrenC1.c1, sgpaipavg1ogrenC1.c1, sgpaosnephdryC1.a1, sgpnoaaaosC1.b1, sgpnoaaaosavgC1.b1, sgpnoaaaosfitrhC1.b1 |
Description: | The neph backscatter shutter started to fail which resulted in large background values in the dry nephelometer. The data is poor quality even though it may look ok. Instead use the data in the wet nephelometer. Note that during some of this time period the RH value inside of this neph ramped up and down so use data at the low RH values. |
Measurements: | sgpnoaaaosavgC1.b1:
sgpaosnephdryC1.a1:
sgpnoaaaosC1.b1:
sgpaip1ogrenC1.c1:
sgpaipavg1ogrenC1.c1:
sgpnoaaaosfitrhC1.b1:
|