1. Ocean water

2. 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

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

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

5. 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

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

7. Seawater Chemistry

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

9. 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

10. Ocean Salinity

11. Ocean Salinity