Typhoon and Tornado

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1、TyphoonandTornadoSimilaritiesandDifferencesBrothersofCyclonicAirFamilyPowerfulNatureDisastersMajorFeatureDifferencesFromthepointofviewofgeneration,atyphoonandatornadoarecyclonicorrotatingcolumnofairTornadoformingmechanismTyphoonformingmechanismAtyphoonisatropicalcyclonetha

2、tdevelopsinthenorthwesternpartofthePacificOcean.IdenticaltropicalcycloneoccursinthenortheasternpartofPacificOceanisnamedhurricane.TyphoonisthenameusedbypeopleinChina,Japan,Tai-Wang,Hong-Kong.IntheStateswegetusedtothenameofhurricaneratherthantyphoon.Atornadoisaviolentlyrota

3、tingcolumnofairthatisincontactwithboththesurfaceoftheearthandacumulonimbuscloud.TornadosarealsoreferredasTwistersandCyclones.Cyclonesarethenameusedinmeteorology.PowerfulNaturalDisastersMosttornadoeshavewindspeeds<118km/h.Themostextremeonehaswindspeed>480km/h.TropicalCyclon

4、eIntensityScaleCategorySustainedWindSpeedsTyphoon>118kmperhourSeveretropicalstorm90-118kmperhourTropicalstorm60-118kmperhourPowerfulNaturalDisastersAtornadoinKansas,USAin2007Ninepeoplediedinthedisaster.AtornadoinHunan,Chinain2009fourpeoplediedinthedisaster.PowerfulNaturalD

5、isastersA2009tornadoassociatedwithhailsinChinadamagedproperties.A2010tornadoinAustraliadamagedhouseandvehicle.PowerfulNaturalDisastersMajorDifferencesofTyphoonsandTornadosTherelativebodysizeofthecyclonesintyphoonsandtornadosTyphoon-eyeOriginandgrowMovingpathsandtraveldista

6、nceMosttyphoonsaregiantcycloneshavingcrossfromtenstohundredskilometers.Itisusuallyfeaturedwithatyphooneye.Wecangetexcellentimagesofthecyclonesfromasatellite.Owingtoit’sgiantbodysize,itisnoteasytotakegoodphotosofthecyclonesfromtheearth.Whenatyphoonattacksanareawhichcanbeent

7、irecityorseveralcities,onlycanweseethickstormclouds.Typhoon-eyePhenomenaAtthelocationoftyphooneye,thereisnorain,sometimesevensunshining.Thewindisweakwithwindspeed<10km.Butthephenomenakeepsforashorttimeonly.Typhooneyephenomenalastsveryshortly,severetropicalstormsfollowimmed

8、iately.Stormcameaftertyphooneyephenomenapassedoff.Followedbystrongerwindsandseverestorms.