Vertical Sidelobes affect NTDA

We see a case where the TDA is inconsistent in time, likely due to noisy velocity, KIND 28May2019 at 0116Z Wayne County, likely due to vertical velocity data smearing.

Velocity data smearing on the 0.5 degree tilt (likely originating fomr the 1.8 degree slice or higher).
1.8 degree slice where data smearing is likely originating.

Here (below) we see the detection return and it’s impressive that it is assigned the same ID as before. This will help for creating time series of the features attributes. That’s good news. What’s less good news is we see a great setup for vertical data smearing as broad rotation with a 60+ dBZ core aloft is being aliased downward. There is no easy solution for this I’m afraid. Spectrum width is very high (>20 kt) and CC is ~ 0.8 or less so there is a possible flagl for degraded data quality. However, these values also could legitimately occur with a strong TDS.

0.5 degree scans
2.4 degree scans

-marfafront