Low-Level Beam Blockage
S-Pol IHOP_2002, Oklahoma Panhandle
Beam blockage was minimal for S-Pol during IHOP, even at the lowest
elevation angles. Partial beam blockage was evident only in the
0.0° SUR tilt. Blockage was likely due to grain silos and farm
buildings located within several kilometers of the radar.
Correlations may be done between panoramic
images and the radar imagery, as shown below.
In the image below, partial beam blockage gives a "spokey" effect to
the reflectivity data, while barely interrupting the continuous nature
of the velocity field. Partial blockage is evident in reflectivity at
approximately 9°, 28°, 88°, 155°, 226°, 307°,
and several other azimuths.
--- Bob Rilling ---
/ NCAR Atmospheric Technology Division
Created: Mon Jan 6 15:25:43 MST 2003