OCS 1006 : OCS Test 3 Study Guide Physical Oceanography
15 Mar 2019
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If the rising continues the water may condense into precipitation. The atmosphere moves in response to uneven solar heating of the earth! Some air descending at 30 latitudes moves poleward. Before it descends completely, it is joined by air returning from the north. Loop of air forms between 30 and 60 latitudes. In the northern hemisphere air movement poleward is deflected to the right (east), in the southern hemisphere air movement is to the left (west). The westerlies: polar cells: air growing colder at the poles begins blowing toward the equator at the surface, turning to the west as it does so. The air from the ferrel cells is less dense than polar air and does not mix with it well, creating weather systems around the 50-60 latitudes. At high altitude, the ascending air from 50 to 60 latitude turns pole ward to complete the polar: northeasterly and southeasterly trade winds: circuit, air is heated at the equator and rises.
