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Ice Accretion, London Road, St. John's
Ice Accretion, London Road, St. John's
Ice accretion occurs when liquid rain or drizzle, falling from an upper level warm air layer at temperature (T) > 0°C, falls into a low level air layer at T < 0°C and comes in contact with a surface or object whose temperature is below the freezing point. Under these conditions a layer of clear ice accumulates to a thickness that depends upon the intensity of the precipitation, its duration and the prevailing wind speed.

Reproduced by permission of Colin Banfield. ©1995.
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