| TIDAL VECTORS PAGE 1 |
The gravitational pull causes a bulge (HW) and two LW on the earth's surface.
The HW on the opposite side is caused by centrifugal force, as earth spins at 1,000 miles per hour.
The moon orbits the earth every 28 days, causing bigger tides and smaller tides, when the sun and moon are in line (transit) or opposition.
BIG TIDES
Channel harbours, about TWO DAYS after...
Small Tides
(opposition) occur shortly after the 1st and last quarter. Channel harbours, about TWO DAYS after...
7 days between a spring and neap.
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