| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 12/11/2011 | 1800 | 02/10/2012 | 0600 | Suspect |
| Subject: | PGH/AOS/M1 - Trailer temp too low, CCN affected |
| DataStreams: | pghaosccn100M1.a1 |
| Description: | The trailer temperature wasn't regulating very well. Night time temperatures fell to 10 C. The CCN doesn't operate well at low temperatures. As a consequence the instrument temperatures were below the acceptable range for the model calculation of %ss. The instrument still reported a %ss values, but this value is likely off by as much as 0.1%, especially at night when the trailer temperatures were low. |
| Suggestions: | Use night time data with caution and understand that they have a higher uncertainty. |
| Measurements: | pghaosccn100M1.a1: more
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