OCEAN 2 - latitude Control on salinity in oceans Salinity...

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Class 2 Wind patterns on Earth- Winds between 0-30 degrees latitude run along the equator easterlie(left) and are called the trade winds, between 30-60 the winds are called westerlies and blow from left to right in a wavy pattern, between 60-90 they blow easterlie again and are called the polar easterlies Real circulation (6 cells, with rotation) LECTURE 13 OUTLINE (Climate, Surface Currents, Heat Transport – October 8, 2009) Review of gases, temperature, pressure, and water in atmosphere- Main gas in our atmosphere is nitrogen, plants in the ocean are the main contributor to the oxygen in our atmosphere. Temperature is warm near equator and cold near poles, water in atmosphere ranges from 0-4% with more near equator and none near the poles Model of atmosphere circulation Control on climate on Earth- Rainier near equator and 60 degrees latitude while drier near 30 degrees
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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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