| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 05/01/2016 | 0000 | 06/24/2016 | 0800 | Suspect |
| Subject: | ASI/TRACEGAS/M1 - Slow return to ambient measurement after HNO3 calibration |
| DataStreams: | asiaosnoxM1.a1 |
| Description: | Nitric acid permeation source is used to calibrate at 06:00 on odd days. The response on the NO2 and NOy channels is large and takes excessive time to recover after the calibration. This is apparent as a spike in the data after the calibration. Users should ignore this spike. HNO3 calibration was turned off. |
| Suggestions: | The return to ambient can be as long as an hour or more. |
| Measurements: | asiaosnoxM1.a1: more
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