the oceanic environment
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The Oceanic Environment. Statistics for the earth\'s water supply:. Oceans 97.61%  Polar Ice & Glaciers 2.08  Groundwater 0.29  Freshwater lakes 0.009  Saline Lakes 0.008  Soil Moisture 0.005  Rivers 0.00009  Atmosphere  0.0009. Physical Characteristics of Water:.

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statistics for the earth s water supply
Statistics for the earth\'s water supply:
  • Oceans 97.61%
  •  Polar Ice & Glaciers 2.08
  •  Groundwater 0.29
  •  Freshwater lakes 0.009
  •  Saline Lakes 0.008
  •  Soil Moisture 0.005
  •  Rivers 0.00009
  •  Atmosphere  0.0009
physical characteristics of water
Physical Characteristics of Water:
  • liquid at ambient temperature
  • solid state less dense than liquid- max density 4o C; ice floats, prevents freezing entire water column
  • high heat capacity- absorbs heat; stabilizes temperatures within geographic regions
  • polar solvent- "like dissolves like“
  • transparent- absorbs IR & UV
oceanic statistics
Oceanic Statistics
  • Oceans covers ~ 71% of the earth’s surface
  • Ave. depth is 4,000 m
  • > 84% is more than 2,000 m
  • Deepest ~ 11,000 m (> 6 miles)
tides
Tides
  • Largely determined by gravitational attraction on either side of the earth
  • Tidal Periodicity
      • Semidiurnal
      • Diurnal
      • Mixed
  • Other factors- basin shape & Coriolis effect
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