Abstract
DURING the three-and-a-half years' cruise of the Challenger, ending with May, 1876, observations of the force and direction of the wind were made on 1202 days, at least twelve times each day, of which 650 days were on the open sea, and 552 days near land. The observations of force were made on Beaufort's Scale, (0–12) being the scale of wind-force observed at sea. The five oceans have been examined separately, viz., the North and South Atlantic, the North and South Pacific, and the Southern Ocean, and thereafter the results grouped together. The mean diurnal periodicity in the force of the wind on the open sea and near land respectively is shown on Fig. 1, where the figures on the left are Beaufort's Scale, and those on the right their equivalents in miles per hour. The solid line represents the mean force on the opea sea, and the dotted line the mean force near land.
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BUCHAN, A. Diurnal Variation Of The Velocity Of The Wind On The Open Sea, And Near And On Land 1 . Nature 27, 413–415 (1883). https://doi.org/10.1038/027413b0
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DOI: https://doi.org/10.1038/027413b0