Chapte 13 Flashcards

1
Q

Tsunami

A

A wave that forms when a argue volume of ocean water is suddenly moved up and down

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2
Q

Storm surge

A

A local rise in sea level near the shore that is caused by strong winds from a storm,such as a hurricane

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3
Q

Tides

A

Daily movements of ocean water that change the level of the of the oceans surface.

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4
Q

Tide range

A

The difference between levels of ocean water at high tide and low tide

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5
Q

Spring tides

A

Tides that maximum daily tidal range that occur during the new and full moons

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6
Q

Neap tides

A

Tides with minimum daily tidal range that occur during the first and third quarters of the moon

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7
Q

Crest

A

The highest point of a wave

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8
Q

Trough

A

The owes the point of a wave

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9
Q

Wave length

A

The distance between two adjacent wave crests or wave throughs

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10
Q

Wave height

A

The vertical distance between a waves crest and its trough

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11
Q

Swells

A

Rolling waves that move in a steady procession across the ocean.

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12
Q

Wave period

A

The time between the passage of two wave crest or troughs at a fixed point

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13
Q

Breaker

A

A heightened water wave that begins to tumble downward or break upon nearing the shore

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14
Q

Surf

A

A heightened water wave that begins to tumble downward or break upon nearing the shore

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15
Q

Whitecaps

A

A white,foaming wave with a very steep crest that breaks in the open ocean before the wave gets close to the shore

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16
Q

Salinity

A

A measure of the amount of dissolved salts and other solids in a given amount of liquid

17
Q

Thermocline

A

A layer of water extending from 300m below sea leve

18
Q

Continental shelf

A

Begins at the shoreline and slopes toward the ocean

19
Q

Continental slope

A

Begins at the edge of the continental shelf

20
Q

Continental rise

A

The base of the continental slope

21
Q

Abyssal plain

A

The board flat portion of the,deep-ocean basin

22
Q

Mid-ocean ridge

A

Mountain chains formed where tectonic plates pulled apart

23
Q

Rift Valley

A

Forms between rift zones

24
Q

Seamount

A

Individual mountains of volcanic material

25
Ocean trenches
Bottomless cracks in the deep ocean basin
26
Surface current
Stream lie, movements
27
Coriolis effect
The curving of moving objects from a straight path
28
Deep current
Stream like movement of ocean water far below the surface
29
Upwelling
Process in which cold,nutrients water from deep ocean rises to the surface and replaces warm surface
30
El Niño
A periodic change in the location of warm cool surfaces in the PO
31
Swells
Rolling waves that move steady procession across the ocean