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Marine Science > Physical Oceanography > Flashcards

Physical Oceanography Flashcards

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0
Q

Standing Wave

A

Wave energy does not move forward

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1
Q

Label the wave

A

A. Crest, B. Trough, C. Wavelength, D. Wave height, E. Flat water

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2
Q

Shallow water wave vs deep water wave

A

Shallow: less than 1/2 height
Deep: more than 1/2 height

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3
Q

Things that cause tsunamis

A

Landslide, earthquake, hurricanes

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4
Q

Lunar Day

A

24 hours 50 minutes. Affects tides by time of low and high is different

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5
Q

Spring Tide

A

Highest highs and lowest lows. Sun, moon and earth in a straight line

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6
Q

Neap Tide

A

Lowest highs, and highest lows. Sun moon and earth at 90 degree angle

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7
Q

Western Boundary Current

A

Swift, narrow, warm, deep

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8
Q

Eastern Boundary Current

A

Slow, broad, cold, shallow

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9
Q

Northern Hemisphere

Southern Hemisphere

A

Clockwise

Counter clockwise

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10
Q

More dense water

A

Cold and salty

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11
Q

Immediate source of waves and currents

A

Wind

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12
Q

300 feet apart, “feels” bottom at

A

150 feet

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13
Q

Steps as a wave approaches shore

A
  1. Wave “feels” bottom
  2. Wave crest peaks
  3. Friction, causing pile up
  4. 1:7 ratio; height to length
  5. 3:4 ratio; height to depth
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14
Q

Primary Forces

A

Density, thermohaline circulation and wind

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15
Q

Secondary Forces

A

Shape of ocean basin, coriolis, gyres

16
Q

Flood vs ebb

A

Flood- incoming tide

Ebb- outgoing tide

17
Q

What type of tidal system is found in Garden City? What does this mean?

A

Semi-diurnal. There are two high and two low tides

Marine Science (4 decks)

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