Abstract
THE resistance offered by the earth's surface to the wind is known to reduce its velocity and to cause deviations in its direction both horizontal and vertical, as well as to retard the progress of the storm itself. This friction to which aërial currents are subjected is probably least for a surface of water such as the sea—greater for plains of loose sand, where, as in the Nubian deserts, lofty sand pillars are produced—and greater still where the surface is immoveable, as in the case of solid land; but the greatest resistance of all is due to the obstruction offered by rugged hills and lofty mountain-ranges.
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Observations on a Remarkable Formation of Cloud at the Isle of Skye * . Nature 12, 487–488 (1875). https://doi.org/10.1038/012487a0
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DOI: https://doi.org/10.1038/012487a0