DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D160907.10 | ENA/CPC/C1 - New pump slightly under pressure | enaaoscpcfC1.b1, enaaoscpcfC1.a1 | Suspect |
D160907.11 | ENA/TRACEGAS/C1 - Flow meters not operating | enaaoscoC1.01, enaaoscoC1.b1 | Does not affect quality |
D160909.20 | ENA/AOS/C1 - Flow problem affecting concentrations | enaaoscpcfC1.a1, enaaoscpcfC1.b1 | Incorrect |
D161025.6 | ENA/AOS/C1 - Instrument mentors working at the site | enaaoscpcfC1.b1, enaaoscoC1.b1, enaaoscpcfC1.a1, enaaoscoC1.01 | Suspect |
D161026.2 | ENA/AOSMET/OZONE/TRACEGAS/C1 - missing data | enaaoscoC1.01, enaaoscoC1.b1 | Missing |
D161216.5 | ENA/TRACEGAS/C1 - Power failure | enaaoscoC1.01, enaaoscoC1.b1 | Incorrect |
D170303.12 | ENA/AOS/C1 - Dry air supply intermittently not working | enaaoscpcfC1.b1, enaaoscoC1.b1, enaaoscpcfC1.a1, enaaoscoC1.01 | Does not affect quality |
D170320.2 | ENA/CPC/C1 - Changes to upstream plumbing, may not have been sampling ambient. | enaaoscpcfC1.a1, enaaoscpcfC1.b1 | Incorrect |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/24/2016 | 0900 | 08/29/2016 | 0831 | Suspect |
Subject: | ENA/CPC/C1 - New pump slightly under pressure |
DataStreams: | enaaoscpcfC1.b1, enaaoscpcfC1.a1 |
Description: | Due to a pump failure, a different pump was used on the system. The orifice pressure was lower with this additional pump and the system may have been slightly under the pressure required to maintain critical flow on the CPC's critical orifice. Flow rate measurements during this time show very little change in the output flow rate. |
Measurements: | enaaoscpcfC1.a1:
enaaoscpcfC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/25/2016 | 1141 | 09/07/2016 | 1900 | Does not affect quality |
Subject: | ENA/TRACEGAS/C1 - Flow meters not operating |
DataStreams: | enaaoscoC1.01, enaaoscoC1.b1 |
Description: | Flow meters were not operating so that there were no standard adds for calibration. |
Measurements: | enaaoscoC1.01:
enaaoscoC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/08/2016 | 0035 | 09/08/2016 | 1501 | Incorrect |
Subject: | ENA/AOS/C1 - Flow problem affecting concentrations |
DataStreams: | enaaoscpcfC1.a1, enaaoscpcfC1.b1 |
Description: | Due to a flow problem with another instrument on the same sample line, the concentrations reported by the CPC are not representative of the atmospheric concentration of particles |
Measurements: | enaaoscpcfC1.a1:
enaaoscpcfC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/26/2016 | 0830 | 10/01/2016 | 0100 | Suspect |
Subject: | ENA/AOS/C1 - Instrument mentors working at the site |
DataStreams: | enaaoscpcfC1.b1, enaaoscoC1.b1, enaaoscpcfC1.a1, enaaoscoC1.01 |
Description: | Instrument mentors working at the site. Sample lines and electrical connections being reconfigured. Instruments that had no work done on them may still be affected. |
Measurements: | enaaoscpcfC1.a1:
enaaoscoC1.01:
enaaoscpcfC1.b1:
enaaoscoC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/25/2016 | 0050 | 10/25/2016 | 0518 | Missing |
Subject: | ENA/AOSMET/OZONE/TRACEGAS/C1 - missing data |
DataStreams: | enaaoscoC1.01, enaaoscoC1.b1 |
Description: | The Unit 1 computer was found stuck in boot screen and had to be powered off to reboot. Data is missing for this period. |
Measurements: | enaaoscoC1.01:
enaaoscoC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
11/11/2016 | 1610 | 11/12/2016 | 0937 | Incorrect |
Subject: | ENA/TRACEGAS/C1 - Power failure |
DataStreams: | enaaoscoC1.01, enaaoscoC1.b1 |
Description: | Instrument restarted after a power failure. Data not correct. Problem resolved after Operator intervention. |
Measurements: | enaaoscoC1.01:
enaaoscoC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
06/20/2016 | 0000 | 03/03/2017 | 0000 | Does not affect quality |
Subject: | ENA/AOS/C1 - Dry air supply intermittently not working |
DataStreams: | enaaoscpcfC1.b1, enaaoscoC1.b1, enaaoscpcfC1.a1, enaaoscoC1.01 |
Description: | Pentras dry air supply intermittently not working. Dry air missing for the humidigraph and the HT-DMA. Dry air supply for those instruments partially replaced by regular undried compressed air, lowering the delivery pressure. No direct effect on other instruments seen. |
Measurements: | enaaoscoC1.01:
enaaoscpcfC1.a1:
enaaoscpcfC1.b1:
enaaoscoC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/22/2017 | 1740 | 02/22/2017 | 1958 | Incorrect |
Subject: | ENA/CPC/C1 - Changes to upstream plumbing, may not have been sampling ambient. |
DataStreams: | enaaoscpcfC1.a1, enaaoscpcfC1.b1 |
Description: | During this time period, changes were being made to upstream plumbing (i.e. the impactor). The cpcf may not have been receiving all sample flow from the ambient during this time period. |
Measurements: | enaaoscpcfC1.a1:
enaaoscpcfC1.b1:
|