Circulation patterns in terrestrial atmosphere3

Circulation patterns in terrestrial atmosphere3 - at a...

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Circulation patterns in terrestrial atmospheres There are several modes of circulation in terrestrial atmospheres, though the pattern of dominance varies from planet to planet. The major circulation patterns are: Hadley Cells Large-Scale Eddying (Baroclinic Eddies) Large-Scale Eddying (Topographic Effects) Condensation Flow Thermal Tides Hadley Cell (Theoretically) The Hadley Cell circulation pattern is due primarily to differential heating from equator to pole. Thus we expect the air to rise at the equator and fall at the pole, setting up hemispherical circulation cells: This is, indeed, what the situation on Venus is supposed to be, though rather than one single cell
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Unformatted text preview: at a given altitude it is believed Venus has a number of Hadley cells packed on top of each other at different altitudes. On Mars there is believed to be only one cell globally rising in the summer tropics and sinking in the winter subtropics. This is modifed a little by the Coriolis forcmodifed a little by the Coriolis force, but it is believed to be a predictable pattern, making Martian "weather" potentially more predictable than Earth's! On Earth the pattern is much more affected by Coriolis forces which effectively make a single cell too unstable. The pattern therefore tends to a three-cell one in latitude: Hadley cells in earth's atmosphere, distorted by Coriolis Forces...
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This note was uploaded on 12/15/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.

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Circulation patterns in terrestrial atmosphere3 - at a...

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