• Created by: catehrine
  • Created on: 16-04-20 11:27

Properties of the ocean

High specific heat capacity meaning it responds slowing to heating or cooling

Latent heat fusion is high as there is evaportation

Warmer oceans hold less CO2 than cooler oceans

Dipolar molecule

  • can hold dissolved molecules

Primary producers

  • photosynthesis
  • take up CO2 then as they die they sink to the bottom of the oceans 

The rougher the ocean waters the faster it will dissolve CO2

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Ocean currents

Patterns are determined by:

  • Wind direction - prevailing winds
  • landforms

Ekman layer:

  • The Coriolis effect means the water moves between 0 and 90 degrees to the rotation of the earth
  • Upwelling near Peru
  • Cold water means there is more primary productivity


  • La Nina - intensified normal year with hot water near Australia and so wet weather there
  • El Nino - warm water spreads as the thermocline flatterns - droughts in Australia and floods in South America
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Deep Ocean currents

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Deep Ocean currents

Density differences

Thermohaline circulation

  • formation of deep water that contains CO2
  • Salinity and temperature

Mass evaportation leads to high salinity

  • if salinity levels are high then circulation slows
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