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Unformatted text preview: latitude Control on salinity in oceans- Salinity is higher near 30 degrees latitude because evaporation exceeds precipitation and it is fairly low on the equator and near 60 degrees latitude Surface currents -- simple diagrams- Surface currents=gyres Real surface currents- Follow the flow of winds Temperature of seawater- Determined by the currents and winds Basics of energy transfer during evaporation and rainfall- Energy is absorbed during evaporation and released during rainfall at 540 Cal per gram Energy transfer on Earth by evaporation and rainfall Importance of energy transfer- Warms our earth as it releases 540cal per gram, it takes more energy is required to evaporate cold water than warm water Energy in atmosphere- In the form of lighting and it comes from the sun, lighting strikes from the ground up...
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- Fall '08