ocean surface currents slide (1 and 2)
Streamlike movements of water that occur at or near the surface of the ocean are called.
Surface currents
How deep is the East Australian Current?
1.5km
When currents meet landforms, they ____________
change direction
Deep currents are ______ ____ movements of ocean water far below the ocean surface.
stream like
Waves are made of two main components - ______ and troughs
Crests
The Gulf Stream, which is one of the
longest surface currents, transports 25
times more water than all of the rivers in
the world and flows from Florida to
Iceland
The East Australian Current does or doesn't flow along the East coast of Australia.
does
If Earth's surface were covered only with water, currents would travel in a _________ ________ across the Earth
fixed pattern
Deep _______ are not controlled by wind or the Coriolis effect.
currents
A crest is the highest point and the _______ is the lowest point.
Trough
what create surface currents?
Global winds blowing across the Earth’s surface.
Speeds in the core of the EAC are
among the ________ in the South Pacific, up
to 4.5 mph an hour.
strongest
When currents meet landforms, they change direction. This is known as _______ ________.
continental deflection.
Deep currents are mainly controlled by ________ in water density.
increases
A ___________ is the distance between two adjust crests or troughs.
wavelength
Just as with winds, the rotation of the Earth causes surface currents to move in curved paths rather than straight lines, because of the
Coriolis Effect
The East Australian Current transports a staggering ___________ cubic metres of water southward each second. 40 million or 5,000
40 million
Surface currents ________ affect the climate in many parts of the world.
greatly
Temperature and ________ affect the density of ocean water.
salinity
_____ _____ is the vertical distance between a waves crest and its trough.
wave height
currents in the Northern Hemisphere turn _________ while currents in the Southern Hemisphere turn ________________.
clockwise and counterclockwise
The current is almost ______ wide. 50 km or 100 km
100 km
Cold-water currents create cooler climates in coastal areas that would be much __________
warmer
Ocean water gets denser when it becomes _______ or gets colder.
saltier
Ocean waves form because of ______ between the wind and the surface of the water. Waves move in a circular pattern.
Friction