Figure 1. Whole flight series, showing Cloud profiles Remote sensing legs Climbout sounding sounding Flux legs Power plant run Whole flight track Figure 1. Whole flight series, showing climb-out, stair-step descents through cloud, pass through remote sensing sites, climb through cloud, descent, flux legs, and the power plant run.

Figure 2. (Left) The step-down through the cloud, showing a profile of supercooled liquid water. (Right) The clear-air sounding, showing the profile of aerosol.

Fig. 3 Pass through supercooled liquid water at -35 C, which is unusually cold for liquid water.

Figure 4 Two photographs of a Kelvin- Helmholtz Billow cloud. Note the photo to the left (which was taken a few minutes after the upper photo) shows the cloud has “wrapped up”.