DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D140530.2 | MAO/SMPS/S1 - clogged impactor at the SMPS aerosol sample inlet | maoaossmpsS1.a1 | Suspect |
D140815.1 | MAO/AOS/S1/M1 - Instrument maintenance | maoaossmpsS1.a1 | Incorrect |
D141203.3 | MAO/ALL/S1 - Inlet down/off for cleaning and maintenance. | maoaossmpsS1.a1 | Incorrect |
D150311.17 | MAO/SMPS/S1 - Instrument maintenance | maoaossmpsS1.a1 | Incorrect |
D150429.6 | MAO/AOS/S1 - Flow rate change | maoaossmpsS1.a1 | Does not affect quality |
D151203.4 | MAO/SMPS/S1 - Reprocess: SMPS data | maoaossmpsS1.a1 | Does not affect quality |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/07/2014 | 1430 | 05/13/2014 | 2043 | Suspect |
Subject: | MAO/SMPS/S1 - clogged impactor at the SMPS aerosol sample inlet |
DataStreams: | maoaossmpsS1.a1 |
Description: | The clogging of the impactor leads to a decrease in the aerosol sample flow rate of the SMPS, which is nominally 1 lpm. This decrease in the SMPS sample flow rate results in an underestimation of the ambient size distribution and integrated number concentration. |
Measurements: | maoaossmpsS1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/09/2014 | 1600 | 08/15/2014 | 1500 | Incorrect |
Subject: | MAO/AOS/S1/M1 - Instrument maintenance |
DataStreams: | maoaossmpsS1.a1 |
Description: | Instrument maintenance and cleaning inlets affecting data. |
Measurements: | maoaossmpsS1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/10/2014 | 1325 | 08/10/2014 | 2115 | Incorrect |
Subject: | MAO/ALL/S1 - Inlet down/off for cleaning and maintenance. |
DataStreams: | maoaossmpsS1.a1 |
Description: | Inlet stack of MAOS A lowered. All instruments on internal cabin air. No atmospheric validity on HTDMA, PSAP, f(RH) dry neph, wet neph, aethalometer, PASS3, SP2, ACSM, CCN-200, Impactor, CPC, UCPC, SMPS. |
Measurements: | maoaossmpsS1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/06/2015 | 1558 | 03/06/2015 | 1612 | Incorrect |
03/05/2015 | 1458 | 03/05/2015 | 1522 | Incorrect |
03/04/2015 | 1345 | 03/04/2015 | 1348 | Incorrect |
03/05/2015 | 1458 | 03/06/2015 | 1848 | Incorrect |
03/05/2015 | 1351 | 03/05/2015 | 1414 | Incorrect |
03/04/2015 | 1302 | 03/04/2015 | 1317 | Incorrect |
03/05/2015 | 1435 | 03/05/2015 | 1458 | Incorrect |
Subject: | MAO/SMPS/S1 - Instrument maintenance |
DataStreams: | maoaossmpsS1.a1 |
Description: | A number of instrument maintenance tasks were performed. The flow rate of the system from the impactor was tested. Inlet flow rates and nozzle pressures were examined on the CPC 3772. The accuracy of the classifier voltage and sheath flow rates were evaluated. A HEPA filter zero test was performed. During an approximately 24 hour period, the voltage cable was left unplugged from the classifier. |
Measurements: | maoaossmpsS1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/17/2014 | 1300 | 04/20/2015 | 1845 | Does not affect quality |
Subject: | MAO/AOS/S1 - Flow rate change |
DataStreams: | maoaossmpsS1.a1 |
Description: | At begining of period, the bypass blower on MAOS A failed. This was replaced by the instrument operator, but operator was unable to reprogram the PID flow controller. The blower ran approximately 50% faster than designed flow rate. It is unlikely this significantly affected the flow dynamics or transmission efficiencies in the MAOS A sampling stack. The data is colored transparent, but the DQR is filed to alert the user. No specific degradation of signals were noted at this time. |
Measurements: | maoaossmpsS1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/29/2014 | 0000 | 12/28/2015 | 0000 | Does not affect quality |
Subject: | MAO/SMPS/S1 - Reprocess: SMPS data |
DataStreams: | maoaossmpsS1.a1 |
Description: | No affect on data quality |
Measurements: | maoaossmpsS1.a1:
|