___________ currents – streamlike movements of water
- influenced by:
o ________________________________
o ________________________________
o ________________________________
- help people predict where objects in the open ocean
will be carried
___________ currents – streamlike movements of water
- influenced by:
o ________________________________
o ________________________________
o ________________________________
- help people predict where objects in the open ocean
will be carried
_________ currents – horizontal, streamlike movements of water
that occur at or near the ocean surface
- controlled by three factors:
o ________________________________
o ________________________________
o ________________________________
- ex. Gulf Stream
_________ currents – horizontal, streamlike movements of water
that occur at or near the ocean surface
- controlled by three factors:
o ________________________________
o ________________________________
o ________________________________
- ex. Gulf Stream
Global Winds
- Near the equator winds blow ocean water
_________________________________
- Near the poles ocean water is blown
__________________________________
Global Winds
- Near the equator winds blow ocean water
_________________________________
- Near the poles ocean water is blown
__________________________________
Coriolis Effect
- Curving of moving objects from a straight path due to
__________________________________________
- causes surface currents in the Northern Hemisphere to
turn _________________________________
- causes surface currents in the southern hemisphere to
turn _________________________________
Coriolis Effect
- Curving of moving objects from a straight path due to
__________________________________________
- causes surface currents in the Northern Hemisphere to
turn _________________________________
- causes surface currents in the southern hemisphere to
turn _________________________________
Continental Deflections
- when surface currents meet continents, the currents
___________________________, or change direction
Continental Deflections
- when surface currents meet continents, the currents
___________________________, or change direction
Current Notes
Ocean currents – stream-like movements of water
- influenced by: weather, Earth’s rotation, position of the
continents
- help people predict where objects in the open ocean
will be carried
Surface currents – horizontal, stream-like movements of water
that occur at or near the ocean surface
- controlled by three factors: global winds, Coriolis
effect, continental deflections
- ex. Gulf Stream
Global Winds
- Near the equator winds blow ocean water east to west
- Near the poles ocean water is blown west to east
Coriolis Effect - Curving of moving objects from a straight path
due to Earth’s rotation
- earth’s rotation causes wind and surface currents to
move in curved paths
- causes surface currents in the Northern Hemisphere to
turn clockwise
- causes surface currents in the southern hemisphere to
turn counterclockwise
Continental Deflections
- when surface currents meet continents, the currents
deflect, or change direction
Deep Currents – streamlike movements of ocean water located far
below the surface
- not directly controlled by wind. Form in parts of the
ocean where water density increases.
- Density – the amount of matter in a given space
- Density of ocean water is affected by temperature and
salinity
- Salinity – a measure of the amount of dissolved salts or
solids in a liquid
-
Decreasing the temperature of ocean water and
increasing the water’s salinity increase the water’s
density