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Physical Properties of Seawater Thermal Properties of Water.

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Presentation on theme: "Physical Properties of Seawater Thermal Properties of Water."— Presentation transcript:

1 Physical Properties of Seawater Thermal Properties of Water

2 Physical Properties of Seawater Thermal Properties of Water

3 Physical Properties of Seawater Thermal Properties of Water

4 Physical Properties of Seawater Thermal Properties of Water

5 Physical Properties of Seawater Thermal Properties of Water

6 Physical Properties of Seawater Thermal Properties of Water

7 Physical Properties of Seawater Hydrologic Cycle: Circulation of water on Earth

8 Chemical Properties of Seawater Water – a universal solvent

9 Chemical Properties of Seawater Water – weight of salt (g) dissolved in 1 kg of water

10 Chemical Properties of Seawater Water – weight of salt (g) dissolved in 1 kg of water

11 Chemical Properties of Seawater Water – weight of salt (g) dissolved in 1 kg of water

12 Chemical Properties of Seawater Precipitation Impacts on Salinity

13 Chemical Properties of Seawater

14 Global Surface Salinity Chemical Properties of Seawater

15 Rule of Constant Proportions –Ratio of ion/chloride constant –As total salinity changes, major ion concentrations change proportionately –Normal seawater – measure Cl, caluclate other major ion concentrations Chemical Properties of Seawater 35 o / oo total salinity –Ca 0.412 o / oo Cl 19.344 o / oo –Ca/Cl 0.0212 32 o / oo total salinity –Ca 0.377 o / oo Cl 17.686 o / oo –Ca/Cl 0.0212

16 Rule of Constant Proportions Chemical Properties of Seawater

17 Measuring Salinity Chemical Properties of Seawater CTD conductivity, temperature, depth

18 Conservative Ions –Do not participate in chemical or biochemical reactions –Chloride Cl - –Sodium Na + –SulfateSO 4 ++ –MagnesiumMg ++ –CalciumCa ++ –PotassiumK + Non-Conservative Ions –Do NOT follow Rule of Constant Proportions –Variable concentration –Participate in chemical or biochemical reactions Bicarbonate CO 3 Nitrate NO 3 PhosphatePO 4 SilicaSiO 2 Chemical Properties of Seawater

19 Sources and Sinks of Salts Chemical Properties of Seawater

20 Sources and Sinks of Salts Chemical Properties of Seawater

21 Sources and Sinks of Salts RT = total amount of substance in oceans rate at which substance is added (or removed) Chemical Properties of Seawater

22 Dissolved Gases Chemical Properties of Seawater oxygen

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