A Text-Book of Ocean Meteorology; Comp. From the Sailing Directories for the Oceans of the World - Softcover

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1887. Excerpt: ... CHAPTER VI. TEE NORTH PACIFIC OCEAN. WINDS. The North Pacific more resembles the North Atlantic than the other Oceans in its Meteorology, but differs from that Ocean in not having any Remarks. General connection with the Arctic area, for the passage of Behring Strait is too shallow and too narrow to affect the Ocean generally. Further than this, the great area of the Pacific seems to exercise a deadening effect on the motive forces of the Atmospheric and Ocean Currents which pass over it, both being of a more moderate character than in the Atlantic. The general arrangement of the Wind System of the North Pacific is this:--To the Northward of about lat. 30 (a parallel varying with the season) are found the S.W. anti-Trade Winds; between that parallel and lat. 7 or 10 N. (also varying with the sun's declination) is found the N.E. Trade Wind; and between the last-named parallel and the Northern limit of the S.E. Trade Wind is a narrow Belt of Calms or Variable Winds, to which the name of " Doldrums" has been applied; it is a well-known belt of difficulty to the sailor. The extent of the Trade Winds in latitude is usually considered to be from 30 S. to 30 N., but these limits are subject to so many variaWiiids ations, that such a statement must be received with great limit ations. We have not the means of drawing such a close approximation to a true mean as can be done in the Atlantic Ocean, from the fewer recorded observations. The following Table is given by the late Chevalier Ph. de Kerhallet, of the French Marine, as the result of the observations of ninety-two vessels which crossed the Line between the longitudes of 106 and 147 W. Table of the Limits of the N.E. and S.E. Trades, between long. 106 and 147' W., and the breadth of the interval between them ...