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Ocean water
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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
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Seawater Chemistry Dissolved gases: N2, O2, CO2
Enter from rivers, volcanic eruptions, and organisms in the ocean
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Seawater Chemistry Factors that affect dissolved gases: Temperature
Gases are dissolved better in cold water
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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
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Seawater Chemistry Dissolved solids:
Enter from volcanic eruptions and weathering of rocks
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Seawater Chemistry
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Ocean Salinity Why does the salinity percentage vary around the globe?
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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
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Ocean Salinity
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Ocean Salinity
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