简介：ＱＢＯ－ｌｉｋｅＯｓｃｉｌｌａｔｉｏｎｓＩｎｄｕｃｅｄｂｙＬｏｃａｌＴｈｅｒｍａｌＦｏｒｃｉｎｇＺｈａｎｇＤａｉｚｈｏｕ；（张代洲），ａｎｄＱｉｎｉｎ（秦瑜）（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｐｈｙｓｉｃｓ，ＰｅｋｉｎｇＵｎｉｖｅｒｓｉｔｙ，Ｂｅｉｊｉ...

简介：WhensupertyphoonSepatcameclosetotheFujiancoastlineonthenightof18August2007(codedas0709inChineseconvention),anassociatedtornado-likeseverestormdevelopedat2307–2320BeijingStandardTimeinLonggang,CangnanCounty,WenzhouPrefecture,ZhejiangProvinceapproximately300kmawayintheforwarddirectionofthetyphoon.Thestormcausedheavylossesinlivesandproperty.Studyingthebackgroundoftheformationofthestorm,thispaperidentifiessomeofitstypicalcharacteristicsafteranalyzingitsretrievalofDopplerradardata,verticalwindshearandsoon.Synopticconditions,suchasunstableweatherprocessesandTBB,arealsostudied.