SP11%20Ch7%20review

SP11%20Ch7%20review - Chapter 7: Atmospheric Circulations...

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Chapter 7: Atmospheric Circulations Scales of Motions s microscale s mesoscale s synoptic (weather map) scale s planetary (global) scale Fig 7.2. 7.3, 7.4 The formation of a dust devil. h On a hot, dry day, the atmosphere next to the ground becomes unstable. h As the heated air rises, wind blowing past an obstruction twists the rising air, forming a rotating column, or dust devil. h Air from the sides rushes into the rising column, lifting sand, dust, leaves, or any other loose material from the surface. s isobars and density differences s thermal circulations – Heating and cooling of the atmosphere above the ground create cold, core high pressure cells and warm, core low pressure cells. s Sea and Land Breeze s Uneven heating of land and water s Day: land hot, water cold = sea breeze s Night: water hot, land cold = land breeze s Sea breeze convergence Land breezes occur because land cools off faster than water. h
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This note was uploaded on 09/25/2011 for the course 670 201 taught by Professor Hopey during the Spring '11 term at Rutgers.

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