SHORTER CONTRIBUTIONS

ROTATION OF DUST DEVILS

H. B. Brooks Thule Air Base, Greenland

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Abstract

The writer has observed that large dust devils rotate cyclonically, at least near Tucson, Arizona. This implies that the dust-devil is a central feature of a convective cell whose horizontal radius is frequently a mile. A graph of wind speed versus vortex radius is included.

Abstract

The writer has observed that large dust devils rotate cyclonically, at least near Tucson, Arizona. This implies that the dust-devil is a central feature of a convective cell whose horizontal radius is frequently a mile. A graph of wind speed versus vortex radius is included.

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