Ocean Surface Currents (slide 1 & 2)
Streamlike movements of water that occur at or near the surface of the ocean are called?
Surface currents
4.5
When currents meet landforms, they change _______
direction
Deep currents are ______ movements of ocean water far below the ocean surface.
steam-like
Waves are made of two main components - ________
crests and troughs
The Gulf Stream, transports __times more water than all of the rivers in the world
25
The current is almost ___ km wide
100
Warm water currents begin near the _____ and carry warm water to other parts of the ocean.
equator
Deep currents are ___ controlled by wind or the Coriolis effect.
not
A ________ is the distance between two adjusts crests or troughs.
wavelength
Surface currents can reach depths of _____ meters and lengths of several thousand kilometers.
several hundred
The East Australian Current transports staggering __ million cubic meters of water southward each second.
40
Surface currents greatly affect the ______ in many parts of the world.
climate
Ocean water gets _____ when it becomes saltier or gets colder.
denser
______ is the vertical distance between a wave's crest and its trough.
Wave heighth
Global winds blowing across the Earth’s surface create ________
surface currents
more than ___ km deep
1.5
Warm-water currents create ______ climates in coastal areas that would otherwise be much cooler (Iceland)
Warmer
Starting at a depth of about ___ meters, the water temperature becomes colder as the depth increases.
200
Ocean waves form because of ______ between the wind and the surface of the water.
friction
the rotation of the Earth causes surface currents to move in ______
curved paths
East
If Earth's surface were covered only with water, currents would travel in a ___________ across the Earth
fixed pattern
The denser water moves along the ocean floor and eventually travels toward the _____ in the form of a deep current.
equator
_____ is a type of wave that moves through matter and then vibrates our eardrums so we can hear.
Sound