Cambridge Encyclopedia » Cambridge Encyclopedia Vol. 27


air boundary warm cold

A meteorological term for the sharp boundary between two parcels of air of different origin and characteristics, along which a steep horizontal temperature gradient exists. A warm front is the leading boundary of warm air, and a cold front is the leading boundary of polar or cold air. Each front is associated with its characteristic weather. In a depression, the meeting of the cold front with the warm front results in an occluded front.

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