辽宁地区西北路径寒潮天气特征分析
崔曜鹏;谭政华;吴荷;于天宠;曲原;蒋林杉
【期刊名称】《现代农业科技》 【年(卷),期】2015(000)010
【摘要】Based on daily extreme minimum temperature data and maximum wind speed data and as well as NCEP/NCAR reanalysis data,the general features of the cold wave in Liaoning area were analyzed.The cold wave in Liaoning was divided into three paths:northwest path, northeast path and westerly path. The westerly path was further discussed in this paper.The results showed that the cold air from the source southward through central and western Neimenggu to Liaoning and caused regional cold weather in Liaoning after the accumulation and strengthen in West Siberia;The temperatures in Liaoning generally rised above 10℃before the outbreaking of cold wave dued to the impact of strong warm advection in the font of upper trough;Temperature of the cold center at 500 hPa basically stable at around-45℃from brewing to the outbreak of the cold wave;The surface cold high center over mostly in 1 040.0 hPa.The pattern of small trough developed accounted for a large proportion in the circulation situation.%利用NCEP/NCAP再分析资料、辽宁省逐日最低气温和逐日最大风速资料，对2006-2009年影响辽宁地区的区域性寒潮天气进行统计分析，将影响辽宁地区的寒潮冷空气路径归纳为3种（东北路径、西北路径和偏西路径），本文重点讨
论：西北路径冷空气对辽宁地区的影响。结果表明：冷空气从源地到达西西伯利亚地区堆积加强后经内蒙中西部南下到辽宁，造成区域性寒潮天气；受高空槽前强暖平流的影响，寒潮暴发前1~2 d辽宁地区气温普遍回升10℃以上；寒潮冷空气从酝酿到暴发阶段500 hPa冷中心的强度基本稳定在-45℃左右，寒潮地面冷高压中心强度大多在1040.0 hPa以上。从环流形势上看，小槽发展型占较大比例。 【总页数】4页(239-242)
【关键词】寒潮;西北路径;环流形势;辽宁地区 【作者】崔曜鹏;谭政华;吴荷;于天宠;曲原;蒋林杉
【作者单位】辽宁省本溪市气象局，辽宁本溪 117000;辽宁省本溪市气象局，辽宁本溪 117000;辽宁省本溪市气象局，辽宁本溪 117000;辽宁省本溪市气象局，辽宁本溪 117000;辽宁省本溪市气象局，辽宁本溪 117000;辽宁省本溪市气象局，辽宁本溪 117000 【正文语种】中文 【中图分类】P467 【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_modern-agricultural-science-technology_thesis/020121259915.html 【相关文献】
1.辽宁地区东北路径寒潮天气特征分析 [J], 崔曜鹏; 谭政华; 吴荷; 董宝磊; 秦瑜; 于天宠
2.东北地区一次寒潮天气过程特征分析 [J], 蔡明娇; 白爱娟
3.东北地区一次寒潮天气过程特征分析 [J], 蔡明娇; 白爱娟 4.2013年1月中国寒潮天气过程变化特征分析 [J], 陆相霖 5.准格尔盆地西北缘一次寒潮天气特征分析 [J], 孙东霞
以上内容为文献基本信息，获取文献全文请下载
辽宁地区西北路径寒潮天气特征分析
