东北地区夏季风的变异特征分析的中期报告摘要：夏季风是影响东北地区降水的重要气候因素，然而过去几十年来，东北地区夏季风表现出不同程度的变异。本中期报告对东北地区夏季风的变异特征进行了分析。研究结果表明，东北地区夏季风年际波动较大，呈现出时空不均匀的特征。其中，齐齐哈尔市、吉林市和长春市等地区夏季风强度变异较大，而哈尔滨市和大连市夏季风强度较稳定。此外，夏季风与气温、降水等气候因素相关性较弱，需要进一步探究原因。关键词：夏季风、东北地区、变异特征Abstract:SummermonsoonisanimportantclimatefactoraffectingprecipitationinNortheastChina.However,inthepastfewdecades,thesummermonsooninNortheastChinahasshownvaryingdegreesofvariability.ThismidtermreportanalyzesthevariationcharacteristicsofthesummermonsooninNortheastChina.Theresultsshowthattheinter-annualfluctuationofthesummermonsooninNortheastChinaislargeandexhibitsspatio-temporalunevenness.Amongthem,theintensityofsummermonsoonincitiessuchasQiqihar,JilinandChangchunvariesgreatly,whiletheintensityofsummermonsooninHarbinandDalianisrelativelystable.Inaddition,thecorrelationbetweensummermonsoonandclimaticfactorssuchastemperatureandprecipitationisweakandrequiresfurtherexplorationofthereasons.Keywords:summermonsoon,NortheastChina,variationcharacteristics