Figure 1. Ruby lidar (0.694-micron) height-time display (7.5 m by 10 s) of range-corrected cloud backscattering in relative units based on a logarithmic grayscale. This cirrus cloud, generated by hurricane Nora, was observed at the Facility for Atmospheric Remote Sensing in Salt Lake City, UT on 25 September 1997.
Figure 2. Linear depolarization ratios (delta, see color scale at top) as calculated from the cirrus cloud in Fig. 1. Low depolarization ratios (0.0 to 0.05) reveal the presence of horizontally oriented ice crystals.
