Droplet Fall Speeds and Droplet Growth

  • Q: what determines the droplets fall speed relative to the ground??

  • A: droplet size and updraft strength -->

  • given a growing cu with an updraft strength of 4 ms-1:

  • if the particle terminal velocity is -2 ms-1, the particles fall speed is: ANSWER

  • if the particle terminal velocity is -4 ms-1, the particles fall speed is: ANSWER

  • if the particle terminal velocity is -6 ms-1, the particles fall speed is: ANSWER