Data Quality Report for Order ID: 187768
User ID: bibii1    Date completed: 2017-09-17
All DQRs
DQR ID Subject Affected Data Streams Data Quality Metric
D160229.3 SGP/DL/DLPROF/C1 - Instrumental artifact in vertical velocity variance profiles sgpdlfptC1.b1 Suspect
 
DQR ID: D160229.3    (Back to Top)
Start Date Start Time End Date End Time Data Quality Metric
2011-04-20 16:00:00 2015-07-23 19:00:00 Suspect
Subject: SGP/DL/DLPROF/C1 - Instrumental artifact in vertical velocity variance profiles
Affected Datastreams: sgpdlfptC1.b1
Description Long-term averages of vertical velocity variance profiles developed from vertical staring data show a height-dependent sinusoidal modulation superimposed on the atmospheric variance profile. This modulation causes a wiggle in the variance profile. The period of the wiggle is about 350 m, and the effect is most obvious during hot afternoon periods in the summer months. The exact cause of this problem is not known, but we suspect that it may be caused by temperature sensitivity in beam alignment.
Measurements
  • radial_velocity (Radial velocity)