006-physics-1 - Ocean Physics Ocean Ocean Physics Ocean...

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Ocean Physics Ocean Physics
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Ocean Physics Ocean Physics Buoyancy Temperature Light Density Pressure Depth Salinity Sound Dissolved Gasses
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Buoyancy
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Archimedes Principle of Buoyancy A floating object displaces a volume of fluid equal in mass to the floating object empty loaded with fish Displaced water
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Objects that are more dense than water will sink. Objects that are less dense than water will float. Objects that are the same density as water will neither sink nor float. float Neutrally buoyant sink
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Blubber Swim bladder Pneumatophore Organisms adaptation to buoyancy in water
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Air chambers Buoyancy Compensator Device (BCD) Organisms adaptation to buoyancy in water
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Temperature
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Isotherms Isotherms Lines of equal temperature 60 o 30 o 0 o 30 o 60 o tropic temperate temperate polar polar
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Sea Surface Temperature Sea Surface Temperature July 2005
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Properties of Light in the Ocean
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The Electromagnetic Radiation Spectrum Only green and blue wavelengths pass through water a great distance.
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Light Absorption in the Ocean Light Intensity decreases with depth 0-100 m (photic zone) 100-1000m (dysphotic zone) >1000 (aphotic zone)
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Light Penetration in the Ocean ~65% of visible light is absorbed in the 1
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006-physics-1 - Ocean Physics Ocean Ocean Physics Ocean...

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