Ocean Currents (Leaving Cert Geography): Flashcards
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Ocean currents definition
Ocean currents definition
Continuous flows of seawater
% of ocean water in surface currents
% of ocean water in surface currents
10%
% of ocean water in deep currents
% of ocean water in deep currents
90%
Primary driver of surface currents
Primary driver of surface currents
Wind
What drives deep-water currents
What drives deep-water currents
Water density differences
Thermohaline circulation meaning
Thermohaline circulation meaning
Density-driven ocean current movement
Cold, salty water property
Cold, salty water property
Denser, sinks to ocean floor
Warm, less salty water property
Warm, less salty water property
Less dense, remains near surface
Coriolis effect direction in N hemisphere
Coriolis effect direction in N hemisphere
To the right
Coriolis effect direction in S hemisphere
Coriolis effect direction in S hemisphere
To the left
Origin of warm ocean currents
Origin of warm ocean currents
Near the equator
Origin of cold ocean currents
Origin of cold ocean currents
Polar or high-latitude regions
Gyres definition
Gyres definition
Large circular surface ocean current systems
Gyre rotation in northern hemisphere
Gyre rotation in northern hemisphere
Clockwise
Number of major ocean gyres
Number of major ocean gyres
Five