Currents Flashcards
(10 cards)
0
Q
Three factors that influence currents
A
Uneven heating of the atmospher, rotation of earth , continents
1
Q
What are currents
A
Continuos movement of ocean water
2
Q
What are surface currents driven by
A
Winds
3
Q
How deep can the currents flow
A
100-200 m
4
Q
What do upwellings do
A
Bring cold water from the depth of the ocean to the surface
5
Q
What’s the thermocline
A
It is the level below the mixed layer and Is where the water decease dramatically
6
Q
Is colder water more dense then warmer water?
A
Yes
7
Q
What’s an overturn
A
When convection currents mix with the surface and bottom waters
8
Q
What are the five main gyres
A
North Atlantic , south Atlantic , South Indian, North Pacific, South Pacific
9
Q
What are the five main currents
A
Gulf Stream, North Atlantic , irminger, Labrador, Greenland
