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Vocabulary Challenge
Why was six afraid of seven? Because seven, eight, nine!
Match the term to its defintion.
1.
a fixed point on the shore from which tide
heights may
2.
a wavelike advance of the tide in a
narrow bay or river
3.
the period of time when the disk of the
Moon is fully illuminated
4.
the point of rotation for Kelvin waves, that
is, tides
5.
a long-wavelength gravity wave that
propagates eastward along the equator
or counterclockwise in Northern
Hemisphere basins
6.
the portion of sea level variability
attributable to changes in seawater
density
7.
the time of one complete tidal cycle;
about 24 hours and 50 minutes
8.
the average height of the ocean relative
to a shoreline when the effects of tides,
waves, and other ocean disturbances
have been removed
9.
the center point of no tidal displacement
around which amphidromic tides rotate
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-210.
the angle between the position of the
Moon (or Sun) and the equatorial plane;
analogous to latitude, declination takes
values of 90 degrees at the North Pole
and -90 degrees at the South Pole
11.
the vertical height of the tide above the
zero tide height, the tidal datum, or a
tide gauge benchmark
12.
the average of the lowest tide that
occurs in regions with mixed
semidiurnal tides
13.
the individual contributions of the
gravitational forces of planetary bodies
to the tides
14.
the response of Earth’s crust to the daily
differential gravitational forces of the
Sun and the Moon
15.
a fixed marker on a hard substrate on
which measurements of tide height can
be based
16.
the discrepancy between
measurements of sea level based on
tide gauge stations versus satellites
17.
the 16.8-year time period over which
measurements of zero tide levels are
based
18.
the period during the tidal cycle when
the tidal range is maximal
19.
when viewed from Earth, the period
when no Moon is visible at nighttime
20.
the horizontal (tangential) gravitational
forces of the Moon and Sun that cause
the tides
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Total Grade
-321.
the ideal shape of the Earth from which
measurements of sea level may be
based
22.
the highest sea level during a tidal cycle
23.
the time of delay between the passage
of the Moon overhead and the high tide
24.
the subsidence or uplift of Earth’s crust
that results from advancing or retreating
glaciers, respectively
25.
flows of water associated with tides
26.
the period of the tidal cycle when tidal
currents are maximal
27.
the idea put forth by Newton that the
tides could be explained as tidal bulges
resulting from the gravitational forces of
the Sun and the Moon
28.
a type of daily tidal pattern
characterized by one high tide and one
low tide
29.
the minimum sea level in a tidal cycle
30.
changes in sea level due to increases or
decreases in the amount of seawater
31.
the tilt of Earth relative to its plane of
orbit around the Sun
32.
as viewed from Earth, the period of the
lunar cycle when the disk of the Moon
appears half full
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Total Grade
-433.
the volume of water in an estuary
contributed by the ocean, typically
estimated as the difference between
sea level at the mean high and mean
low tides
34.
the semidiurnal tidal component caused
by the Moon’s gravitational field
35.
the length of time for the Moon to orbit
Earth and return to the same position
relative to distant stars; about 27.3 days
36.
the period at the height of the high or
low tide when the speed of tidal currents
is minimal
37.
the daily periodic rise and fall of the sea
surface due to horizontal movements of
water
38.
the theoretical accumulations of water
that result from the gravitational forces
of the Moon and the Sun, as developed
by Sir Isaac Newton
39.
the period of time in the monthly tidal
cycle when the range of tides is minimal
40.
the time between successive high or
low tides; about 12 hours and 25
minutes
41.
the long-wavelength Kelvin wave
produced as a result of dynamic forcing
of the tides; in essence, the tides
42.
in amphiodromic tides, the line that
connects equivalent times
43.
the semidiurnal component of tides
caused by the gravitational attraction of
the Sun
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Total Grade
-544.
a quantitative description of tidal
motions in terms of their wavelike
motions
45.
in amphidromic tides, the line that
connects equivalent tide heights
46.
tidal range
47.
periods of Earth’s geologic history
between the ice ages
48.
a daily tidal pattern characterized by two
high tides and two low tides of
approximate equal height
49.
a tidal pattern consisting of two high
tides and two low tides of unequal
height
50.
the period of time when tidal currents
are slack, usually at the peak of the high
and low tides
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Total Grade