American practical navigator: an epitome of navigation and nautical astronomy (1914)
Bowditch, Nathaniel, 1773-1838, United States. Navy Dept. Bureau of Equipment, Logan, George Wood, 1868-1915 · Washington, Govt. Print. Off. · leaf 215
, and the direction of the wind at any point, instead of being identical withthat of the gradient at that point, is deflected by a certain amount, crossing thelatter at an angle which in practice varies between 45° and 90° (4 to 8 compasspoints), the wind in the latter case blowing parallel to the… … Fig. 69. WINDS. 209 northeasterly—the NE. trade; the southerly wdnds of the polar slope become south-westerly—the prevailmg westerly w^iuds of northern latitudes. So, too, for thesouthern hemisphere, the southerly winds of the equatorial slope here becomingsoutheasterly—the SE. trades; the…
Navigation · Nautical astronomy
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