LAB #5 - Single Doppler Radar Interpretation

1.  Open the data set in /mnt/arch/cases/03may99

2.  Choose an appropriate surveillance scan at about 20:35 UTC.  Create a table indicating the approximate wind speed and direction from the surface to the top of the boundary layer every 500 meters above ground level (AGL).  What is the approximate depth of the boundary layer at this time?

3.  Plot the scan at 23:42:27 UTC.  Find and circle a rotational signature in the single Doppler velocity data.  Now plot the data at 23:44:36 UTC.  Find and circle a divergence signature.  Physically, what is likely responsible for the rotational and divergence signatures that you have located.

4.  Plot the radial velocity data at 00:09:48 UTC on 5/4/99.  On this scan, circle areas where the Doppler velocities are folded once.  Also circle areas where the Doppler velocities are folded twice.  Label the respective regions.

5.  Plot the radar reflectivity, Doppler velocity, and spectral width data at 00:14:25 UTC.  Zoom in on the storm closest to the radar.  Circle the area where you observe the largest spectral width.  Speculate as to what is generating the large spectral width values at this location.