| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 06/18/2008 | 0000 | 06/30/2008 | 2110 | Suspect |
| Subject: | SGP/SIRS/E18 - Ventilator Fan Failure |
| DataStreams: | sgpsirsE18.00, sgpsirs20sE18.a0, sgpsirsE18.b1 |
| Description: | At the start time specified the PSP (down_short_hemisp) ventilator fan failed. PM replaced the fan 6/30/2008 2110. Ventilator failure does adversely affect radiometer measurements but the extent has not been quantified. Mentor suggests using component sum method detailed in SIRS instrument handbook where down_short_hemisp = down_short_diffuse + short_direct_normal * cos (zenith angle) for each time record. |
| Suggestions: | Use down_short_hemisp with discretion or apply component sum method. |
| Measurements: | sgpsirs20sE18.a0: more
sgpsirsE18.b1: more sgpsirsE18.00: more |