Ocean Currents Chapter 16 1 Ocean Currents Masses

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Ocean Currents Chapter 16. 1

Ocean Currents Chapter 16. 1

Ocean Currents • Masses of ocean water that flow from one place to another.

Ocean Currents • Masses of ocean water that flow from one place to another.

Currents • Two types of ocean currents: – Surface currents – Deep currents

Currents • Two types of ocean currents: – Surface currents – Deep currents

Surface Currents that ONLY move horizontally in the UPPER part of the Oceans surface

Surface Currents that ONLY move horizontally in the UPPER part of the Oceans surface • Develop from friction between the ocean and the wind that blows across the surface.

Color your surface current map using the Key on your Surface Current Map! BLUE

Color your surface current map using the Key on your Surface Current Map! BLUE = Cold Current RED = Warm Current

Global Winds Create Currents Draw and Label a Global Winds Diagram according to this

Global Winds Create Currents Draw and Label a Global Winds Diagram according to this diagram. http: //www. youtube. com/watch? NR=1&v=DHrapz. HPCSA

Gyres • Huge circular-moving current systems that are driven by the global winds. •

Gyres • Huge circular-moving current systems that are driven by the global winds. • 5 main gyres!

Gyre Plastic Pollution

Gyre Plastic Pollution

What if this was YOUR home?

What if this was YOUR home?

Locate the 5 main Gyres on your surface current map. Label the Gyres on

Locate the 5 main Gyres on your surface current map. Label the Gyres on your map

Why? Great Britain and Alaska are at similar latitudes, yet Great Britain is about

Why? Great Britain and Alaska are at similar latitudes, yet Great Britain is about 25 degrees warmer than Alaska…

Ocean Currents and Climate Gulf Stream is a great example of bringing warmth to

Ocean Currents and Climate Gulf Stream is a great example of bringing warmth to a high latitude. It brings heat from the equator region to areas more North and South

Deep Currents • VERTICAL (up and down) currents of ocean water • Caused by

Deep Currents • VERTICAL (up and down) currents of ocean water • Caused by differences in water density • Dense water SINKS • LESS dense water RISES

Deep Currents • A result of temperature or salinity changes temp = sinks salinity

Deep Currents • A result of temperature or salinity changes temp = sinks salinity = density