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Ocean water moves in currents What causes ocean currents? How do ocean currents distribute heat around the globe and interact with climate and weather?

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Presentation on theme: "Ocean water moves in currents What causes ocean currents? How do ocean currents distribute heat around the globe and interact with climate and weather?"— Presentation transcript:

1 Ocean water moves in currents What causes ocean currents? How do ocean currents distribute heat around the globe and interact with climate and weather? Ocean Currents

2 Surface currents are caused by strong winds blowing over the ocean. ZThey extend 300-500 feet down ZCover large areas of ocean ZThey curve with the rotation of Earth (coriolis effect.mp4)coriolis effect.mp4 ZThey carry warm water away from equator and cool water away from the poles ZThey affect Earth’s temperatures

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5 Pacific Gyre Pollution Clip ZPacific Garbage Dump- Nightline.mp4Pacific Garbage Dump- Nightline.mp4

6 Deep Currents are caused by differences in the density of the water. Downwelling is water movement from the surface down. This movement carries oxygen from the surface to animals deeper in the ocean. SalinitySalinity and temperature temperature

7 Upwelling Z Upwelling moves water down deep up to the surface. Upwelling ZThis movement brings up nutrients to the animals at the surfacemovement

8 Climate and Weather ZCurrents help distribute heat around the globe by moving warm and cold water around. ZThe moving water changes the temperature of the air above it. ZBeware of El Nino !What is El Nino.mp4What is El Nino.mp4

9 Answer the following: ZWhat causes ocean currents? Z How do ocean currents distribute heat around the globe and interact with climate and weather?


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