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File name:		 11-02a
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Title: ATMOSPHERIC CIRCULATION
Caption: (a) Global circulation of the lower atmosphere showing zones of rising and descending air masses and corresponding zones of low and high air pressure.
Keywords: atmosphere, global circulation, global winds, three-cell circulation model, Hadley cells, prevailing westerlies, trade winds, polar easterlies, doldrums, horse latitudes, air pressures, atmospheric pressures, polar high, subtropical high, equatorial low, Intertropical Convergence Zone, ITCZ, highs, lows