| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D110409.1 | SGP/RL/C1 - Incorrect time array | sgp10rlprofasr1ferrC1.c1, sgp10rlprofbe1turnC1.c0, sgp10rlprofbe1turnC1.c1, sgp10rlprofdep1turnC1.c1, sgp10rlprofext1ferrC1.c1, sgp10rlprofmr1turnC1.c1, sgprlC1.a0, sgprllogC1.a0, sgprlprofmerge1turnC1.c0 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 03/27/2011 | 0100 | 03/29/2011 | 1300 |
| Subject: | SGP/RL/C1 - Incorrect time array |
| DataStreams: | sgp10rlprofasr1ferrC1.c1, sgp10rlprofbe1turnC1.c0, sgp10rlprofbe1turnC1.c1, sgp10rlprofdep1turnC1.c1, sgp10rlprofext1ferrC1.c1, sgp10rlprofmr1turnC1.c1, sgprlC1.a0, sgprllogC1.a0, sgprlprofmerge1turnC1.c0 |
| Description: | On March 27 2011 at 0100 GMT the Raman lidar's instrument computer automatically advanced it's time by one hour (transition to daylight savings time). The problem was eventually fixed on March 29 2011 at 1300 when the clock was set back one hour to the correct time. The ingest experienced problems when the clock was set back one hour. The time arrays in the following files are set one hour ahead of what they should be: 1. sgprlC1.a0.20110327.000001.cdf for profile indices equal to or greater than 355 2. all of sgprlC1.a0.20110327.120001.cdf 3. all of sgprlC1.a0.20110328.134549.cdf 4. all of sgprlC1.a0.20110329.000005.cdf 5. sgprlC1.a0.20110329.120005.cdf for profile indices less than or equal to 72 Also, the time arrays in sgprlC1.a0.20110329.120005.cdf between profile indices 73 through 641 are incorrect. In this case, the offset varies approximately linearly with profile index from 1 hour at index 73 to 0 at index 641. The ingest apparently introduced some unphysical variations in time in this part of the file. |
| Measurements: | sgp10rlprofasr1ferrC1.c1:
sgp10rlprofdep1turnC1.c1:
sgprlprofmerge1turnC1.c0:
sgp10rlprofmr1turnC1.c1:
sgprllogC1.a0:
sgp10rlprofext1ferrC1.c1:
sgprlC1.a0:
sgp10rlprofbe1turnC1.c1:
sgp10rlprofbe1turnC1.c0:
|