Hurricane Cloud Physics. Robert A. Black NOAA/AOML/HRD. Main Research Topics . Rainfall and the warm rain process Precipitation Chemistry Aerosols Ice microphysics Lightning Ice particle nucleation Bergeron Process precipitation growth. How to get rain from vapor.
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Robert A. Black
Some very large drops. (9.6 mm between white lines)
After 30 years, there are still outstanding questions.
The vertical distribution of cloud water is unknown
The partitioning of the condensate mass between precipitating and non-precipitating particles, graupel, rain, and snow remains hard to quantify.
The relationship between updraft speed and all these particles at various altitudes is still uncertain
The influence of the SSA and other aerosols on the convection remains to be measured.
Lightning is a sign of stronger updraft - what is the relationship between flash rate, storm structure, and the microphysics that separates the charge?