Fig. 3.

The influence of neighborhoods’ rimer velocity and drizzle drop diameter on the fraction of secondary ice events vs. rimer velocity (A and B) and drizzle size (C and D). Drizzle drop diameter is associated with drizzle spectral reflectivity (right y axis in D). A and B are binned by rimer velocity every 0.3 m$\cdot {\mathrm{s}}^{-1}$, and C and D are binned by drizzle spectral reflectivity every 2 dBZ$\cdot$s$\cdot {\mathrm{m}}^{-1}$.