第２期气象水文海洋仪器No．２２０２３年６月Meteorological,HydrologicalandMarineInstrumentsJun．２０２３收稿日期:２０２２Ｇ０９Ｇ０９．基金项目:内蒙古科技厅项目(２０１８０５０８)和环保公益性行业科研专项(２０１７０９００８)资助．作者简介:孙尚瑜(１９９０),女,硕士,工程师．主要从事天气预报预测方法研究工作．呼和浩特市２０２２Ｇ０３Ｇ１３/１４强沙尘暴过程特例分析及预报方法研究孙尚瑜(呼和浩特市气象局,呼和浩特０１００００)摘要:文章使用常规气象观测资料和ECMCF数值预报产品,对发生在呼和浩特市２０２２Ｇ０３Ｇ１３/１４强沙尘暴过程进行天气系统演变、物理量特征等分析.结果表明:１)２００hPa高空急流动量下传、５００hPa长波槽携带强冷空气东移,配合７００和８５０hPa辐合切变,且温度场、高度场反位相叠加、地面蒙古气旋强烈发展,是此次大风、沙尘暴天气爆发的主要影响系统和环流形势;２)呼和浩特市假相当位温线与地面近乎垂直,整层为中性温度层结,大气不稳定,有利于沙尘吹起,形成沙尘暴;３)前期气候晴热干燥少雨,加之春季地表植被稀少,内蒙古西部多沙漠,为沙尘暴爆发创造了环境条件.关键词:强沙尘暴;天气系统演变;物理量特征中图分类号:P４５８．３文献标识码:A文章编号:１００６Ｇ００９X(２０２３)０２Ｇ００６４Ｇ０４StudyonspecialcaseanalysisandpredictionmethodofstrongduststormprocessfromMarch１３to１４,２０２２inHohhotSunShangyu(HohhotMeteorologicalBureau,Hohhot０１００００)Abstract:UsingconventionalmeteorologicalobservationdataandECMCFnumericalforecastproducts,thispaperanalyzestheweathersystemevolutionandphysicalquantitycharacteristicsofthestrongsandstormprocessthatoccurredinHohhotfromMarch１３to１４,２０２２．Theresultsshowthat:１)themaininfluencesystemandcirculationsituationcausetheoutbreakofthiswindy,sandstormweatherincluding２００hPaupperＧleveljetmomentummovingdownward,５００hPalongＧwavetroughcarryingstrongcoldairforeastwardshift,matchingthe７００hPa,８５０hPaconvergenceshear,inversephasesuperpositionoftemperaturefieldandheightfieldandintensedevelopmentofMongoliacycloneonground．２)ThepseudoequivalentpotentialtemperaturelineinHohhotiskeptnearlyverticaltoground．Thewholelayerbelongstoneutraltemperaturestratificationand...
