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Transit Planning Publications, Continued
Tide Tables and
The Tide Tables are prediction tables published in four volumes by the
Tidal Current
Tables
National Ocean Service. They are East Coast of North and South America,
including Greenland; West Coast of North and South America, including
the Hawaiian Islands; Europe and the West Coast of Africa, including the
Mediterranean Sea; and Central and Western Pacific Ocean and the
Indian Ocean (annual editions). Each volume includes information on the
height and time of high and low water at thousands of locations; also
included is information on times of sunrise and sunset, moonrise and
moonset, and other astronomical phenomena. The Tide Tables will be
covered in detail in chapter 7.
Tidal Current Tables are prediction tables published in two volumes by
NOS--Atlantic Coast of North America, and Pacific Coast of North
America and Asia (annual editions); each volume includes data on the
times and strengths of flood and ebb currents and the time of slack water
for thousands of locations; also included are diagrams for certain heavily
traveled bodies of water that facilitate determination of optimum transit
times and speeds, and astronomical data similar to that in Tide Tables.
The Tidal Current Tables will be covered in detail in chapter 7.
Pilot Charts
The Pilot Charts present available data in graphic form that will assist the
mariner in selecting the safest and fastest routes. Besides timely
information of a varied nature, Pilot Charts graphically depict magnetic
variation, currents, prevailing winds and calms, percentage of gales, tracks
of tropical and extratropical cyclones, wave heights, surface air and water
temperatures, percentage of fog, surface barometric pressure, ice and
iceberg limits, the location of ocean weather-station ships, and
recommended routes for steam and sailing vessels. Additionally, such
topics as winds (including gales and cyclones), pressures, temperatures,
visibility, and wave heights are discussed in brief paragraphs at the sides
of each chart. Pilot Charts are published quarterly with each sheet
containing three monthly charts and an article of general information.
3-7
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