World main ocean routes for power vessels .. Ocean Passages for the World is ~vritten for use in planning deep-sea voyages. It contains. Ocean Passage for the World - Ebook download as PDF File .pdf), Text File .txt) or read book online. Ocean Passage for the World. NP Ocean Passages for the World, 6th Edition [, PDF]. Year: Language: english. Author: UKHO. Genre: Guide. Publisher: UKHO.

Ocean Passages For The World Pdf

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OCEAN PASSAGES FOR THE WORLD Format, pdf mariners with wealth of valuable information related to the planning of ocean voyages. In addition to paper format, ADMIRALTY Ocean Passages for the World volumes are available as ADMIRALTY e-Nautical Publications (AENP). AENPs bring. Also see the Indian Ocean pages on raukhamatfrogal.cf 1. OCEAN PASSAGES. & LANDFALLS. Cruising routes of the world. Rod Heikell and.

Low or moderate swell is liable to occur to the leeward of all the main wind belts; there is, for instance, a persistent moderate - at times heavy - swell along the N. Heavy swell is generally only produced in the extratropical gale zones; however, in favourable circumstances it penetrates up to 3, miles beyond the confines of these zones.

Ocean passages for the world and routeing charts

These circumstances are most likely to arise in the rear of the eastward-moving depressions where, in the Northern Hemisphere, the winds are North Westerly and in the Southern Hemisphere, South Westerly.

From this it follows i that heavy swell is more likely to out-run the gale zones on their tropical, than on their poleward flanks; and ii that it is more likely to be experienced in the eastern than in the western side of the oceans.

In low latitudes gales are almost entirely confined to those areas frequented by tropical storms. In a normal year the number of such storms seldom exceeds two a month in any one area. South of the Equator there are no tropical storms in these winter months.

The chart shows the mean monthly position of the Intertropical Convergency Zone. The severity of the weather near the Zone depends upon the degree of wind convergence occurring there and varies both in space and time from clear skies, when there is no convergence, to squalls, with heavy rain and thunderstorms, when the convergence is marked.

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Only the location and direction of the main ocean currents are indicated. A direct result of this is that, according to whether the wind blows from warmer to colder latitudes, or vice versa, the surface water temperatures will be above, or below, the average for the latitude. Some idea of the relative warmth or coldness of the currents is given by the extent to which the sea isotherms in the vicinity of the current arrows bend polewards or equatorwards respectively; thus the Benguella Current is obviously cold, the Agulhas Current warm.

In the open ocean, and along leeward shores, sea and air temperatures agree fairly closely within 1 or so ; thus August sea temperature off Scilly is approximately C. Along windward shores, especially in high latitudes, differences up to 20C.

Sometimes the air will be much colder than the sea e. Sea fog is likely to form wherever warm air passes over cold water; it is most likely to be persistent where the sea isotherms lying athwart the track of a wind blowing from warmer to colder waters are packed closely together.

Areas in which sea fog may be encountered on at least days a month are indicated by a light stipple; days a month areas are shown by a darker stipple.

UKHO Announce new ‘Ocean Passages for the World’ (NP136) to be split

Ice is about the most variable of all the elements depicted on this chart. The year-to-year fluctuations in the limit of pack-ice or icebergs for that matter are often very considerable.

Marine Tracker Tracker Archive. UKHO Genre: Guide Publisher: UKHO Format: PDF Quality: Scanned pages Description: This classic volume on ocean voyage planning has routeing details for powered and sailing vessels; individual chapters on each of the world's oceans; advice on winds, weather, climate, seasonal factors, currents, swell, ice hazards; and the shortest routes between ports and important positions. Additional info: That is why the quantity of pages in this torrent is not equal with original numbering.

Reply Toggle Dropdown Quote. Topic has been moved from forum Nautical charts, tables, sailing directions to forum Archive admin.Approaching across the Bay of Biscay.

To the NW of Norway the warm N-setting current diverges. Arquipelago dos Acores. The central and E sections of this belt are especially stormy and winds of force 7 and over may be expected on 16 to 20 days per month in January and February.

Arquipelago dos Acores see 2. Dhiorix Korinthou 5. April and May Transition period 6. Diagram 2.

If entering the Indian Ocean 3.

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