American practical navigator: an epitome of navigation and nautical astronomy (1914)
Bowditch, Nathaniel, 1773-1838, Logan, George Wood, 1868-1915, United States. Navy Dept. Bureau of Equipment · Washington, Govt. Print. Off · leaf 225
tsunrise or sunset. When it is possible to observe this bar, the changes in its positionat intervals of a few hours will enable the observer to determine the direction ofmovement of the storm. 481. CHARACTER OF TROPICAL CYCLONIC STORMS.—Within the tropics thestorm area is small, the region covered… … fPorto St. IN LOW LATITUDES Velocity along pafhabout 11 miles per tour 20° 80° 70° FIG. 73. CYCLONIC STORMS. 219 for this distance amounted to 2 inches. In the typhoons of the Xorth Pacific Oceangradients of one inch in 60 miles are not infrequent. The successive isobars arealmost circular. As a…
Navigation · Nautical astronomy
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