预览加载中，请您耐心等待几秒...

两次冷涡天气背景下的强对流天气过程分析(英文).docx

预览
1/3
2/3
3/3

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

两次冷涡天气背景下的强对流天气过程分析(英文) AnalysisofSevereConvectiveWeatherProcessesundertheBackgroundofTwoColdVortexEpisodes Abstract: Inrecentyears,severeconvectiveweatherhasoccurredfrequentlyinChina,whichhascausedgreatlossestopeople'slivesandproperty.Duringthespringandearlysummerof2021,twocoldvortexepisodesoccurredineasternChina,whichledtofrequentconvectiveweather.Basedontheanalysisoftheatmosphericcirculationbackgroundandthethermodynamicconditions,thispaperanalyzestheconvectiveweatherprocessesduringthetwoepisodes.Throughthecomparisonofthetwoepisodes,itisfoundthatthelocation,intensity,andscaleofconvectionareaffectedbythedistributionofcoldvortex,thesituationofmonsoon,andthelocationofconvergencezone.Basedontheanalysis,itprovidesareferencefortheearlywarningandpredictionofsevereconvectiveweather. Keywords: Severeconvectiveweather,atmosphericcirculation,coldvortex,thermodynamicconditions 1.Introduction SevereconvectiveweatherisoneofthemostseriousnaturaldisastersinChina.Inrecentyears,duetotheimpactofglobalwarming,thefrequency,intensity,andscaleofconvectiveweatherhaveshownanincreasingtrend.Itisofgreatsignificancetostudytheconvectiveweatherprocessesandtheirpredictability,whichcanprovideatheoreticalbasisfordisasterpreventionandmitigation. Duringthespringandearlysummerof2021,twocoldvortexepisodesoccurredineasternChina.ThefirstepisodeoccurredfromApril25toMay1,andthesecondepisodeoccurredfromMay23to27.BothofthemcausedfrequentconvectiveweatherineasternChina,whichresultedincasualtiesandpropertylosses.Inthispaper,wewillanalyzetheconvectiveweatherprocessesduringthetwoepisodes,andprovideareferencefortheearlywarningandpredictionofsevereconvectiveweather. 2.AtmosphericCirculationBackground Duringthetwoepisodes,theatmosphericcirculationbackgroundwascomplex,andthedistributionofcoldvortexplayedanimportantroleintheoccurrenceofconvectiveweather.Inthefirstepisode,thecoldvortexwaslocatedinthenorthofChina,andthesouthofChinawasunderthecontrolofthesubtropicalhigh.Themeridionalwindwasweak,andtheconvergencezonewa