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Tide Tables
Layout
Tide Tables are published annually by the National Oceanic and
Atmospheric Administration. They are published in four volumes:
Europe and West Coast of Africa (including the Mediterranean Sea);
East Coast of North and South America (including Greenland); West
Coast of North and South America (including the Hawaiian Islands);
Central and Western Pacific Ocean and Indian Ocean.
The Tide Tables contain seven tables; each are briefly explained below:
Table 1 contains the predicted times and heights of high and low waters
for each day of the year at a number of places called reference stations.
All times stated in this table are for standard time. When using daylight
savings time, you must remember to add 1 hour.
Table 2 contains tidal difference information for heights and times at a
number of places called subordinate stations. This information is listed
in geographical order; each subordinate station is given a number, its
location is described, and its position is given to the nearest minute.
The data given for the subordinate station are applied to the predictions
at a specified reference station to obtain the tidal information for the
subordinate station. You’ll see how this works in the example problems
that follow.
Table 3 contains information used for finding the approximate height of
the tide at any time between high and low water. This table also
contains instructions for plotting tide information using a graphical
method. The graphical method is handy for those occasions when the
height of tide is required for a number of times on a given day.
Table 4 is a sunrise-sunset table listing LMT of the Sun’s upper limb for
every 5th day of the year.
Table 5 provides an adjustment to convert the LMT found in table 4 to
zone or standard time.
Table 6 gives the zone time of moonrise and moonset for each day of
the year at certain places.
Table 7 is a conversion of feet to meters table.
7-6
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