ocean surface currants
Streamlike movements of water that occur at or near the surface of the ocean are called
surface currents
The East Australian Current transports a staggering ____ _____cubic metres of water southward each second
40 million
_______ currents create ______ climates in coastal areas that would otherwise be much cooler
Warm-water,warmer
200
A _____ is the highest point and the trough is the lowest point.
crest
Surface currents are controlled by what four factors
The current is almost _____ km wide, and more than 1.5 km deep
100
_______ currents create _____ climates in coastal areas that would be much warmer
Cold-water, cooler
Temperature and salinity affect the ___ of ocean water
density
______ is the vertical distance between a waves crest and its trough.
Wave height
The Gulf Stream, which is one of the longest surface currents, transports____times more water than all of the rivers in the world and flows from Florida to Iceland!
25
Speeds in the core of the EAC are among the strongest in the South Pacific, up to _____ an hour.
4.5 mph
Warm water currents begin near the _____ and carry warm water to other parts of the ocean.
equator
Cold air chills the water molecules at the surface, causing them to move _________. As a result, the volume of the water decreases, and the water becomes denser.
closer together
Ocean waves form because of ______between the wind and the surface of the water. Waves move in a circular pattern.
friction
Global winds blowing across the Earth’s surface create _______ ________.
surface currents.
flow ______ from the Great Barrier Reef.
southward
Coldwater currents begin closer to the ____ and carry cool water to other parts of the ocean. The map below shows the Earth's surface currents.
poles
are stream-like movements of ocean water far below the ocean surface. Deep currents are not controlled by wind or the Coriolis effect. Deep currents are mainly controlled by ______ in water density.
increases
A wave is ______ as a transfer of energy
defined
Surface currents can reach depths of several hundred meters and lengths of several __________ ________.
thousand kilometers
The Australian Current does flow along the ____coast of Australia
East
continental deflection.
The denser water moves along the______ and eventually travels toward the equator in the form of a deep current.
ocean floor
A ________ is the distance between two adjust crests or troughs
wavelength