Intro to oceanography 2

Terms in this set (97)

The concept of different speeds at different circumfrences. Wheel of a car, record on a turntable. An air mass that appears stationary at one latitude will be moving eastward with the rotating earth at a velocity equal to the rotational velocity of the earth's surface at that latitude. As wind moves from a latitude far from the equator to a latitude closer to the equator, the wind moves to a latitude with larger circumference and higher speed. Had a lower initial eastward velocity than the point it is moving towards. It will lag behind, be deflected westward. If the air mass then moves closer to the equator, it will move over points on the surface that have a higher eastward velocity than it does. To an observer on the surface, the air mass will appear to lag behind the eastward rotation of the planet, or it will appear to be moving westward. as wind or water moves from a latitude close to the equator to a latitude further from the equator, it moves to a latitude with smaller circumference and lower speed. It had a higher initial eastward velocity than the point it is moving towards. It will get ahead - be deflected eastward. Winds moving in a west-east direction will be deflected towards the equator. The rotation of earth will cause wind paths to be deflected - northern hemisphere, always to the right of the direction, southern hemisphere, always to the left of the direction

Better explanation: wind moving east in relation to earth's surface will have a higher speed than earth's surface and will be deflected towards an area where the winds have equal speed, ie regions with larger circumference. Wind moving west in relation to earth's surface will have a lower speed than earth's surface, will be deflected towards areas with equal speed, ie regions with smaller circumfrence
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