The Thermohaline Circulation - The Great Ocean Conveyor Belt
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Provided by: NASA|Published on: March 20, 2021
Articles/Websites
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Synopsis
- This video and article explain thermohaline circulation, or the movement of cold surface water into the deeper parts of the ocean, which occurs near polar regions.
- Students will also learn about the Antarctic Circumpolar Current, a current that flows around the Earth without encountering any land masses, allowing for thermohaline circulation.

Subjects: Earth and Space Sciences
Authors: NASA
Region: Global
Languages: English
Teaching Materials
Positives
- The article does a good job of explaining thermohaline circulation.
- The video presents a simple animation of the ocean currents that will help students to visualize thermohaline circulation.
Additional Prerequisites
- Teachers may want to read the article with students before viewing the video because the video does not have any audio or text to describe the phenomenon.
- Teachers may want to pause the animation at intervals to discuss what is happening in the visualization.
Differentiation
- In advanced earth science classes, teachers could show the video to students without any context and ask them to form a hypothesis about what is happening.
- Classes could discuss why the thermohaline circulation is likened to an ocean conveyor belt and the effect that the circulation has on ocean ecosystems.
- Other resources on this topic include this TED-Ed video on ocean currents, this video on the ways that climate change impacts ocean currents, and this video on how oceans circulate.
Scientist Notes
Teaching Tips
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Resource Type and Format
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