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Deep Currents – Thermohaline Circulation Driven by differences in density Have both vertical and horizontal movements Connects surface and deep oceans. Deep Ocean Currents. Thermohaline Circulation. Thermohaline Circulation. Deep Current Flow Pattern. Thermohaline Circulation.

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Deep Ocean Currents


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    Presentation Transcript
    1. Deep Currents – Thermohaline Circulation • Driven by differences in density • Have both vertical and horizontal movements • Connects surface and deep oceans Deep Ocean Currents

    2. Thermohaline Circulation

    3. Thermohaline Circulation

    4. Deep Current Flow Pattern Thermohaline Circulation

    5. Intermediate Current Formation Thermohaline Circulation

    6. NADW Formation Thermohaline Circulation

    7. AABW Formation Thermohaline Circulation

    8. AABW Formation • Restricted by seafloor • topography Thermohaline Circulation

    9. Thermohaline Circulation • Antarctica Intermediate Water depth to low salinity layer salinity

    10. Thermohaline Circulation • Atlantic Water Masses

    11. Thermohaline Circulation • Mediterranean Water temperature salinity

    12. Thermohaline Circulation • Mediterranean Water

    13. Thermohaline Circulation • Pacific Ocean – Low Salinity in Northern Polar Regions

    14. Thermohaline Circulation • Indian Ocean Formation? Temperature Salinity Dissolved oxygen

    15. Thermohaline Circulation

    16. Thermohaline Circulation • Conveyor-Belt Circulation

    17. Dissolved Oxygen in Bottom Water Thermohaline Circulation

    18. Dissolved Nitrate in Bottom Water Thermohaline Circulation

    19. Dissolved Silica in Bottom Water Thermohaline Circulation

    20. Thermohaline Circulation young waterold water oxygen rich oxygen poor nutrients poor nutrient enriched