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Currents & Climate Earth’s Waters Chapter 4.4 Pages 134-140.

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Presentation on theme: "Currents & Climate Earth’s Waters Chapter 4.4 Pages 134-140."— Presentation transcript:

1 Currents & Climate Earth’s Waters Chapter 4.4 Pages

2 Go With the Flow Currents:Currents: a large stream of moving water that flows through the ocean –Carry water great distances –Occur at varying depths

3 Surface Currents Surface currents affect water to a depth of several hundred meters –Driven mainly by wind Coriolis EffectMove in circular pattern due to Coriolis Effect, caused by Earth’s rotation.

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6 Deep Currents Deep Currents are caused by differences in density, not wind 1.Warm surface water flows to poles 2.Cools and sinks 3.Flows back towards equator.

7 Climate ClimateClimate is the pattern of temperature and precipitation typical of an area over a long period of time Currents affect climate by cooling / warming air above them.

8 Upwelling UpwellingUpwelling is the upward movement of cold water from the deep Caused when wind pushes warm surface water away Deep water brings with it valuable nutrients.

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