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Aquarius: Ocean Circulation

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Description

This short video from NASA discusses the role that salinity plays in Earth's climate and ocean circulation, focusing on the observations of the Aquarius satellite.

Disciplinary Core Ideas

  • The many dynamic and delicate feedbacks between the biosphere and other Earth systems cause a continual co-evolution of Earth’s surface and the life that exists on it.
  • Water continually cycles among land, ocean, and atmosphere via transpiration, evaporation, condensation and crystallization, and precipitation, as well as downhill flows on land.
  • Global movements of water and its changes in form are propelled by sunlight and gravity.
  • Variations in density due to variations in temperature and salinity drive a global pattern of interconnected ocean currents.
  • The ocean exerts a major influence on weather and climate by absorbing energy from the sun, releasing it over time, and globally redistributing it through ocean currents.

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