Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/01/2010 | 1540 | 04/18/2011 | 2010 | Incorrect |
Subject: | SGP/AOS/C1 - CPC leak |
DataStreams: | sgpaosC1.a0, sgpnoaaaosC1.b1, sgpaoscpcC1.a1, sgpnoaaaosavgC1.b1, sgpnoaaaosC1.b0, sgpnoaaaosavgC1.b0 |
Description: | There was a slow internal leak in the CPC instrument and the data slowly decreased over time. The CN concentration is a lower limit and is likely 5 to 20% lower than the actual value with higher errors toward the end of the DQR period. The problem was fixed by replacing the CPC saturator block. |
Suggestions: | Assume the concentration is low but that the daily trends are correct as they follow the CCN profiles. |
Measurements: | sgpaosC1.a0: more
sgpnoaaaosavgC1.b0: more sgpnoaaaosavgC1.b1: more sgpaoscpcC1.a1: more sgpnoaaaosC1.b0: more sgpnoaaaosC1.b1: more |