Physical Properties of Seawater Thermal Properties of Water.

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Presentation transcript:

Physical Properties of Seawater Thermal Properties of Water

Physical Properties of Seawater Thermal Properties of Water

Physical Properties of Seawater Thermal Properties of Water

Physical Properties of Seawater Thermal Properties of Water

Physical Properties of Seawater Thermal Properties of Water

Physical Properties of Seawater Thermal Properties of Water

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

Chemical Properties of Seawater Water – a universal solvent

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

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

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

Chemical Properties of Seawater Precipitation Impacts on Salinity

Chemical Properties of Seawater

Global Surface Salinity Chemical Properties of Seawater

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 o / oo Cl o / oo –Ca/Cl o / oo total salinity –Ca o / oo Cl o / oo –Ca/Cl

Rule of Constant Proportions Chemical Properties of Seawater

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

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

Sources and Sinks of Salts Chemical Properties of Seawater

Sources and Sinks of Salts Chemical Properties of Seawater

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

Dissolved Gases Chemical Properties of Seawater oxygen