cloud base


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cloud base

[′klau̇d ‚bās]
(meteorology)
For a given cloud or cloud layer, that lowest level in the atmosphere at which the air contains a perceptible quantity of cloud particles.

cloud base

The lower surface of a cloud. The cloud base is measured from the ground.
References in periodicals archive ?
Computer simulations of daytime cloud formation in the area support these observations, Lawton notes, and they also suggest that the altitude of the cloud base would rise about 200 m above today's height if the lowlands were completely deforested.
Scientists had already blamed the rise of the cloud base for the longer periods of mistfree conditions observed at the downwind edge of the forest.