下载后可任意编辑新概念英语第四册Lesson14~16原文及翻译新概念英语第四册Lesson14原文及翻译TheButterflyEffect蝴蝶效应Whydosmallerrorsmakeitimpossibletopredicttheweathersystemwithahighdegreeofaccuracy
Beyondtwoorthreedays,theworld’sbestweatherforecastsarespeculative,andbeyondsixorseventheyareworthless
TheButterflyEffectisthereason
Forsmallpiecesofweather--andtoaglobalforecaster,smallcanmeanthunderstormsandblizzards--anypredictiondeterioratesrapidly
Errorsanduncertaintiesmultiply,cascadingupwardthroughachainofturbulentfeatures,fromdustdevilsandsquallsuptocontinent-sizeeddiesthatonlysatellitescansee
下载后可任意编辑Themodernweathermodelsworkwithagridofpointsoftheorderofsixtymilesapart,andevenso,somestartingdatahastoguessed,sincegroundstationsandsatellitescannotseeeverywhere
Butsupposetheearthcouldbecoveredwithsensorsspacedonefootapart,rising