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Water and Seawater

Chapter 3. Water and Seawater. Water Molecules. Water has three states. GAS. WATER. ICE. Ice Floats. Water carries heat energy. Water is a powerful solvent. Seawater. Oceans pick up dissolved solids from a variety of sources. Seawater sampling. A Niskin Bottle in action.

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Water and Seawater

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Presentation Transcript

  1. Chapter 3 Water and Seawater

  2. Water Molecules

  3. Water has three states GAS WATER ICE

  4. Ice Floats

  5. Water carries heat energy

  6. Water is a powerful solvent.

  7. Seawater

  8. Oceans pick up dissolved solids from a variety of sources

  9. Seawater sampling A Niskin Bottle in action

  10. Elevated Salinity Red Sea

  11. Low Salinities Baltic Sea Atlantic Ocean at mouth of Amazon River

  12. Temperature, Salinity and Density

  13. String of water bottles

  14. A rosette of sampling bottles and other instruments

  15. Water Column profile for temperature

  16. 19th Century Oceanography Chart from HMS Challenger Expedition

  17. Satellite Imagery Ocean surface temperatures – easier than taking millions of Niskin samples (assuming you have satellite).

  18. Seawater and Dissolved Gases

  19. Oxygen Carbon dioxide Nitrogen

  20. Pressure and water depth

  21. Density and Ocean Layering

  22. Water Column Profiles

  23. Temperature profiles vary with latitude

  24. Thermohaline Circulation

  25. Three-layered ocean

  26. Solar energy generate movement of air masses

  27. Hadley Cells

  28. Prevailing winds

  29. Major oceanic surface currents

  30. Thermohaline Circulation

  31. Wave Structure

  32. Wave structure

  33. Tides

  34. Tides Grunion (Leuresthes tenuis)

  35. Tides Two forces pull at the water

  36. Tides

  37. Tides The Earth rotates through the bulges generated by centrifugal and gravitational forces

  38. Tides Semidiurnal

  39. Tides Mixed Semidiurnal

  40. Tides Diurnal

  41. Tides

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