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contact nucleus

A type of ice nucleating aerosol particle characterized by its ability to initiate the ice phase in a supercooled water drop when it contacts the drop surface. Nucleation may occur at a different temperature (usually higher) than would occur for a totally immersed particle. The contact can occur through a variety of processes, including diffusion (modified by gradients of temperature and water vapor) or collection by differential fall speed.

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Penulis

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