Currents Waves Tides Vocabulary Gyres

100

Wind
What causes surface currents?

100

Orbital
Ocean waves are what type of wave?

100

Daily variation in sea level at a shoreline which varies by location
What is a tide?

100

Ocean Conveyor Belt
The constant motion of the ocean that is responsible for distributing heat throughout the world is known as what?

100

A large circular pattern of ocean movement caused by the meeting up of several currents
What is an ocean gyre?

200

Regions of calm ocean currents and winds within the horse latitudes
What are the doldrums and where are they located?

200

It is calculated by dividing the wavelength by the period of a wave.
How is wave speed calculated?

200

Theory that describes the driving factor of tides as two tidal bulges caused by the gravitational pull of the Moon and Sun on Earth created by Isaac Newton
What is Equilibrium Theory and who created it?

200

Friction Depth
What is the term for the depth in the ocean at which the wind is no longer strong enough to influence the water’s motion?

200

5
How many major world gyres are there?

300

Differences in water mass density (thermohaline circulation)
What causes deep ocean circulation?

300

Crest, Trough, and Wavelength
What are the 3 important parts of a wave?

300

Extreme Tides
The Bay of Fundy in Canada is an example of a location where what occurs?

300

90 degrees, Northern
Ekman transport moves seawater about ____ to the right in the _________ Hemisphere.

300

Right / Clockwise
What direction do gyres move in the northern hemisphere?

400

Warm temperature, high volume, fast current, flowing toward a pole
Describe three characteristics of a western boundary current.

400

Seiche
A _______ is the occurrence of water in a lake or bay rocking back and forth and “sloshing” from one shore to another as a result of an earthquake or strong winds

400

Tidal Bulge
A _______ _______ is when the ocean is pulled into huge waves with a wavelength the size of the entire ocean basin.

400

A current caused by the Earth’s rotation
What is a geostrophic current?

400

North Atlantic, South Atlantic, North Pacific, South Pacific, and Indian
Name the major world gyres.

500

Ocean circulation is responsible for moving heat throughout the world and therefore determines climate.
How does ocean circulation effect world climate?

500

Forces that create waves such as wind or seismic activity
What are disturbing forces?

500

Imperfect shape of the Earth, seasons, the shape of the ocean basins, & the Coriolis Effect
The Dynamic Theory of Tides takes into account that there are actually more than two tidal bulges and that tides are affected by what other factors?

500

It occurs when water is pushed against a coastline, forcing surface water to sink down. Downwelling is a key component to keeping the ocean oxygenated.
What causes downwelling and why is it beneficial?

500

Gulf Stream, Canary Current, and the N. Equatorial Current
Name the 3 major currents in the North Atlantic Gyre.

Ocean Currents, Waves, & Tides

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