资源描述：
《Atmospheric Circulation》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、CHAPTER3ATMOSPHERICCIRCULATIONTounderstandlarge-scalemotionsoftheresultoftheoperationofphysicallaws.Thisglobalatmosphere,itisessentialthattheAerographer’sMatemovementofair,whichrestoresabalanceofheatonstudythegeneralcirculationoftheatmosphere.TheEarth,isthegeneralci
2、rculation.sun’sradiationistheenergythatsetstheatmosphereinmotion,bothhorizontallyandvertically.TherisingandWORLDTEMPERATUREGRADIENTexpandingoftheairwhenitiswarmed,orthedescendingandcontractingoftheairwhenitiscooledTemperaturegradientistherateofchangeofcausestheverti
3、calmotion.Thehorizontalmotionistemperaturewithdistanceinanygivendirectionatanycausedbydifferencesofatmosphericpressure;airpoint.Worldtemperaturegradientreferstothechangemovesfromareasofhighpressuretowardareasoflowintemperaturethatexistsintheatmospherefromthepressure
4、.Differencesoftemperature,thecauseoftheequatortothepoles.Thechangeintemperatureorpressuredifferences,areduetotheunequalabsorptiontemperaturedifferential,whichcausesatmosphericoftheSun’sradiationbyEarth’ssurface.Thecirculationcanbecomparedtothetemperaturedifferencesi
5、nthetypeofsurface;thedifferentialdifferencesproducedinapanofwaterplacedoveragasheating;theunequaldistributionoflandandwater;theburner.Asthewaterisheated,itexpandsanditsdensityrelativepositionofoceanstoland,foreststomountains,islowered.Thisreductionindensitycausesthe
6、lakestosurroundingland,andthelike,causedifferentwarmer,lessdensewatertorisetothetopofthepan.Astypesofcirculationoftheair.Duetotherelativeitrises,itcoolsandisforcedtotheedgesofthepan.positionofEarthwithrespecttotheSun,muchmoreHereitcoolsfurtherandthensinkstothebottom
7、,radiationisabsorbedneartheequatorthanatothereventuallyworkingitswaybacktothecenterofthepanareas,withtheleastradiationbeingabsorbedatornearwhereitstarted.Thisprocesssetsupasimplethepoles.Consequently,theprincipalfactoraffectingcirculationpatternduetosuccessiveheatin
8、gandtheatmosphereisincomingsolarradiation,anditscooling.distributiondependsonthelatitudeandtheseason.Ideally,theairwithinthetropospheremay
