Figure 2.

Analysis of the T-r_e relations for the clouds in Fig. 1. T is the temperature, and r_e is the cloud particle effective radius for the clouds in the six frames in Fig. 1, respectively. Plotted are the 15% (long dashed line) 50% (solid line), and 85% (short dashed line) percentiles of the r_e for each 1°C interval. The black and red lines correspond to the dusty boxes. The vertical green line marks the 14-μm precipitation threshold. A full description of the meaning of the T-r_e charts is given in ref. 5.