| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 01/02/2011 | 0000 | 02/13/2011 | 2359 | Suspect |
| Subject: | SBS/CSPHOT/M1 - Malfunctions due to extreme cold |
| DataStreams: | sbscsphotaotM1.a1, sbscsphotppM1.a1, sbscsphotaotfiltM1.a1, sbscsphotalmM1.a1 |
| Description: | The CSPHOT motors and electronics experienced problems at the extreme cold temperatures (< -25 C) experienced at Steamboat Springs during this period. There were alignment problems and InGaAs/Silicon Discrepancy errors reported during the period of 1/1/2011-1/11/2011. There were robot errors reported during the coldest days of 2/1-2/4. Some data may be missing during that time period. The instrument ultimately had a robot malfunction on 2/14. Low temperatures may have affected the calibration accuracy during this time period. This can also affect the cloud screened data (level 1.5, sbscsphotaotfiltM1.a1 data). The cloud screening may filter out more data than expected on clear days. |
| Suggestions: | For data that is available during this time period mentor recommends using the quality assured level 2.0 AOT data from AERONET when available (datastream name sbscsphotaotfiltqaM1.a1). Post-calibration reprocessing should correct for calibration drifts and errors in the 1.5 cloud screening. Level 2.0 data and post-calibration level 1.5 data should become available by the end of 2011. Can also use MFRSR data if available. |
| Measurements: | sbscsphotalmM1.a1: more
sbscsphotaotfiltM1.a1: more sbscsphotaotM1.a1: more sbscsphotppM1.a1: more |