根河市一次寒潮降温天气过程形成原因分析  

Analysis on the Causes of a Cold Wave Cooling Weather Process in Genhe City

作　　者：王富宇 WANG Fuyu(Genhe Meteorological Bureau,Genhe,Inner Mongolia 022350)

机构地区：[1]根河市气象局,内蒙古根河022350

出　　处：《农业灾害研究》2022年第12期45-47,共3页Journal of Agricultural Catastrophology

摘　　要：根据欧洲中期天气预报中心再分析资料和NASA全球降水观测计划降水资料对根河市在2021年1月6—8日发生的一次寒潮天气过程进行了诊断分析。结果表明:此次寒潮是在绕极环流南下、中纬度东西走向的低压槽转竖、冷性反气旋较为强势、地面冷锋迅速南下的背景下产生的,此次寒潮导致全国各地出现大范围降温天气并且出现极端低温天气,此次寒潮过程中冷锋南压的情况下出现锋前冷平流的情况。Based on the reanalysis data of the European Medium Range Weather Forecast Center and the precipitation data of the NASA Global Precipitation Observation Program,this paper diagnoses and analyzes a cold wave weather process in Genhe City from January 6 to 8,2021.The results show that this cold wave was generated under the background of the circumpolar circulation southward,the low pressure trough in the middle latitude east-west direction turning vertically,the strong cold anticyclone,and the rapid southward movement of the surface cold front.This cold wave led to a wide range of cooling weather and extreme low temperature weather all over the country.In the process of this cold wave,there was a cold advection in front of the cold front when the cold front pressed southward.

关 键 词：根河市 寒潮 冷锋南下 锋前冷平流 

分 类 号：P458.122[天文地球—大气科学及气象学]