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1、CHAPTER3ATMOSPHERICCIRCULATIONTounderstandlarge-scalemotionsoftheresultoftheoperationofphysicallaws.Thisglobalatmosphere,itisessentialthattheAerographer’sMatemovementofair,whichrestoresabalanceofheatonstudythegeneralcirculationoftheatmosphere.TheEarth,is
2、thegeneralcirculation.sun’sradiationistheenergythatsetstheatmosphereinmotion,bothhorizontallyandvertically.TherisingandWORLDTEMPERATUREGRADIENTexpandingoftheairwhenitiswarmed,orthedescendingandcontractingoftheairwhenitiscooledTemperaturegradientistherate
3、ofchangeofcausestheverticalmotion.Thehorizontalmotionistemperaturewithdistanceinanygivendirectionatanycausedbydifferencesofatmosphericpressure;airpoint.Worldtemperaturegradientreferstothechangemovesfromareasofhighpressuretowardareasoflowintemperaturethat
4、existsintheatmospherefromthepressure.Differencesoftemperature,thecauseoftheequatortothepoles.Thechangeintemperatureorpressuredifferences,areduetotheunequalabsorptiontemperaturedifferential,whichcausesatmosphericoftheSun’sradiationbyEarth’ssurface.Thecirc
5、ulationcanbecomparedtothetemperaturedifferencesinthetypeofsurface;thedifferentialdifferencesproducedinapanofwaterplacedoveragasheating;theunequaldistributionoflandandwater;theburner.Asthewaterisheated,itexpandsanditsdensityrelativepositionofoceanstoland,
6、foreststomountains,islowered.Thisreductionindensitycausesthelakestosurroundingland,andthelike,causedifferentwarmer,lessdensewatertorisetothetopofthepan.Astypesofcirculationoftheair.Duetotherelativeitrises,itcoolsandisforcedtotheedgesofthepan.positionofEa
7、rthwithrespecttotheSun,muchmoreHereitcoolsfurtherandthensinkstothebottom,radiationisabsorbedneartheequatorthanatothereventuallyworkingitswaybacktothecenterofthepanareas,withtheleastradiationbeingabsorbedatornearwhereitstarted.Thisprocesssetsupasimplethep
8、oles.Consequently,theprincipalfactoraffectingcirculationpatternduetosuccessiveheatingandtheatmosphereisincomingsolarradiation,anditscooling.distributiondependsonthelatitudeandtheseason.Ideally,theairwithinthetropospheremay
