| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D050614.1 | SGP/VCEIL/C1 - poor signal | sgpvceil25kC1.b1 |
| D051011.6 | SGP/MWR/C1 - New software version (4.15) installed | sgpmwrlosC1.b1, sgpmwrtipC1.a1 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 05/05/2005 | 1842 | 04/19/2006 | 1713 |
| Subject: | SGP/VCEIL/C1 - poor signal |
| DataStreams: | sgpvceil25kC1.b1 |
| Description: | When parameters were changed (set noise_h2_compensation to "ON" and units to "METERS") to correct a low amplitude problem, the backscatter plots began displaying horizontal stripes indicating detector "ringing". However, the cloud base heights are not affected. The problem was corrected when the instrument was replaced. |
| Measurements: | sgpvceil25kC1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 07/31/2002 | 2027 | 08/04/2005 | 1959 |
| Subject: | SGP/MWR/C1 - New software version (4.15) installed |
| DataStreams: | sgpmwrlosC1.b1, sgpmwrtipC1.a1 |
| Description: | A problem began with the installation of MWR.EXE version 4.12 in July 2002. The software had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier problem. The software upgrade corrected the earlier problem but introduced a new one that caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of tip curves, and saturation of CPU usage. Software versions 4.13 and 4.14 also produced these problems. The new MWR software, version 4.15, was installed on 08/04/2005. As a consequence of this upgrade, the tip curve frequency increased. The tip cycle time decreased from ~60s to ~50s. |
| Measurements: | sgpmwrtipC1.a1:
sgpmwrlosC1.b1:
|