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Oceanography Ch 09

The Tides

TermDefinition
diurnal tide tide with one high water and one low water each tidal day
semidiurnal tide tide with two high waters and two low waters each tidal day
high water high tide
low water low tide
flood tide rising tide; the period of the tide between low water and the next high water.
ebb tide falling tide; the period of the tide between high water and the next low water
tidal current alternating horizontal movement of water associated with the rise and fall of the tide.
slack water state of a tidal current when its velocity is near zero; occurs when the tidal current changes direction
tidal day time interval between two successive passes of the Moon over a meridian, approximately twenty-four hours and fifty minutes
centrifugal force outward-directed force acting on a body moving along a curved path or rotating about an axis; an inertial force
centripetal force inward-directed force necessary to keep an object moving in a curved path or rotating about an axis.
spring tide tides occurring near the times of the new and full Moon, when the range of the tide is greatest
neap tide tides occurring near the times of the first and last quarters of the Moon, when the range of the tide is least
declinational tide variation of the position of the tidal bulge, north and south of the equator due to changes in the position of the moon relative to the earth
tidal bore high-tide crest that advances rapidly up an estuary or river as a breaking wave
elliptical orbits non circular orbit of the moon around the earth…also, non circular orbit of the earth around the sun
Created by: Permian
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