Ocean water.

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Presentation transcript:

Ocean water

Ocean-Atmosphere Interactions 2 categories of water in the Hydrosphere Salt Water Fresh Water Both are based on the percentage of salinity Salinity is the % of salt content

Seawater Chemistry Dissolved gases: N2, O2, CO2 Enter from rivers, volcanic eruptions, and organisms in the ocean

Seawater Chemistry Factors that affect dissolved gases: Temperature Gases are dissolved better in cold water

Seawater Chemistry Dissolved solids: Chlorine, sodium, magnesium, sulfur, calcium, potassium 3.5% mass of ocean water Oceans have an average salinity of 3.5% or 35 ppt (35 ‰) ppt= parts per thousand

Seawater Chemistry Dissolved solids: Enter from volcanic eruptions and weathering of rocks

Seawater Chemistry

Ocean Salinity Why does the salinity percentage vary around the globe?

Ocean Salinity Factors that affect salinity (dissolved solids): Salinity increased = Rate of evaporation is higher than precipitation Salinity decreases = Rate of precipitation is higher than evaporation

Ocean Salinity

Ocean Salinity

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