Shared Flashcard Set

Details

Surface Ocean Circulation
n/a
21
Geology
Undergraduate 1
07/14/2011

Additional Geology Flashcards

 


 

Cards

Term
Surface Ocean Circulation
Definition
mixed layer controlled by wind and Coriolis Effect; 10% of the ocean
Term
Deep Ocean Circulation
Definition
controlled by density variation; 90% of the ocean
Term
Ultimate Driver for Ocean Circulation (Energy Source)
Definition
Sun (Differential Heating) + via Force of Gravity
Term
Predominant Winds
Definition
Westerlies and Tradewinds
Term
Ekman Spiral
Definition
Each succesive layer is deflected by Coriolis and has a lower velocity; the first layer of the current is tweaked 45 degrees right, then a little more right after each layer
Term
Gyre
Definition
closed, circular flow around the peripherary of an ocean basin
Term
What causes gyres not to spiral down?
Definition
Because of gravity and Coriolis effect
Term
Distributes much of Earth's heat
Definition
Ocean Currents
Term
5 Gyres
Definition

North Atlantic,

South Atlantic,

North Pacific,

South Pacific,

South Indian

Term
North Atlantic Gyre
Definition
Spins Clockwise
Term
South Atlantic Gyre
Definition
Spins Clockwise
Term
North Pacific Gyre
Definition
Spins Clockwise
Term
South Pacific Gyre
Definition
Spins counter-clockwise
Term
South Indian Gyre
Definition
Spins Counter-clockwise
Term
Antarctic Circular Component
Definition
Circular flow but not around the peripharay of a basin, but the continent itself
Term

North Atlantic Basin:

Name the Currents

Definition
  1. Gulf Stream
  2. North Atlantic Current
  3. North Equitoral Current
  4. Canary Current
Term

South Atlantic Basin:

Name the Currents

Definition
  1. South Equitoral Current
  2. Brazil Current
  3. Benguela Current
  4. Westwind Drift
Term

North Pacific Basin:

Name the Currents

Definition
  1. North Pacific Current
  2. Kuroshio Current
  3. Alaskan/Californian Current
  4. South Equitorial Current
Term
South Indian Ocean Basin
Definition
  1. South Equitorial Current
  2. Alguhas Current
  3. West Australian Current
  4. Westwind Current
Term
Geostrophic Flow
Definition
Ekman transport piles water up in the center of the gyre
Term
Direction of Earth's Rotation
Definition
EAST
Supporting users have an ad free experience!