Polar displays

Plan Position Indicator (PPI) plots show intensity vs. azimuth and range in a polar plot.
Radius: range [m]; Angle: azimuth [degrees]; Color: log(intensity) [-]
Created with ppi.m.

File 3: 19931106_003838_surv.cdf
ppi1.png Dark blue - low intensity;
Red - high intensity.
ppi2.png Limited to open ocean view (70-215°);
Intensity corrected for power drop off;
Black - low intensity;
White - high intensity.