| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 05/06/2009 | 1550 | 05/18/2009 | 1830 | Incorrect |
| Subject: | SGP/SIRS/E12 - NIP failure |
| DataStreams: | sgpsirs20sE12.a0, sgpsirsE12.b1 |
| Description: | The short_direct_normal values are mostly missing (-9999) starting when the datastream came back from an extended period of no data files. Ops determined the NIP (short_direct_normal datastream) instrument had failed and it was replaced. Values of short_direct_normal can be reconstructed using the following relationship applied for each time period: short_direct_normal = (down_short_hemisp - down_short_diffuse)/cos (zenith angle) |
| Suggestions: | |
| Measurements: | sgpsirs20sE12.a0: more
sgpsirsE12.b1: more |