首页 | 本学科首页   官方微博 | 高级检索  
     检索      

一次鲁中山区秋季连阴雨天气解析
引用本文:张泽铭,赵京峰,王建波.一次鲁中山区秋季连阴雨天气解析[J].中国农学通报,2016,32(35):155-159.
作者姓名:张泽铭  赵京峰  王建波
作者单位:济宁市气象局,济宁市气象局,山东省气象局
基金项目:山东省气象局预报员专项项目“济宁地区最低气温预报研究”(SDYBY2015-08)
摘    要:为了提高对鲁中山区秋季连阴雨的预报服务水平,利用常规资料和NCEP/NCAR 2.5°×2.5°再分析日平均资料分析了2007年9月27日—10月7日鲁中山区秋季连阴雨期间环流形势及物理量分布特征。结果表明:连阴雨期间,大尺度环流系统相对稳定,乌拉尔山到欧洲一带高脊偏强,200 hPa东亚西风急流偏北维持,南亚高压明显东伸,副热带高压偏西、偏北,里海、巴湖一带低槽偏强;500 hPa低槽、中低层切变线是造成此次连阴雨天气的主要影响系统;200 hPa东亚西风急流南侧、南亚高压东北侧的高空辐散是连阴雨天气长时间持续的动力机制;热带气旋的频繁活动,利于副高外围暖湿气流持续北上影响鲁中山区形成连阴雨天气;较强冷空气南下、副高快速东退南撤至海上是连阴雨天气即将结束的明显标志。

关 键 词:黑色地膜  黑色地膜  甘薯  光合  叶绿素荧光  产量  
收稿时间:2016/5/23 0:00:00
修稿时间:2016/9/15 0:00:00

Reasons of One Consecutive Autumn Rain Event in Central Mountainous Area of Shandong
Abstract:The paper aims to improve the forecast capability of consecutive autumn rain in central mountainous area of Shandong. Based on conventional data and daily average NCEP/NCAR 2.5°×2.5° reanalysis data, the circulate situation and the distribution characteristics of physical quantity during the autumn rain in mountainous area of the middle Shandong from September 27th to October 7th, 2007 were analyzed. The results showed that: during the consecutive rain, the large-scale circulate system was relatively stable, the high ridge in the Ural Mountains to the European area was stronger; east Asia westerly jet on 200 hPa maintained northerly, south Asia high was eastwards obviously, the subtropical high tended to westerly and northerly, the low trough in the Caspian and Balkis Lake area was strong; the 500 hPa low trough and the shear line in low level were the main influence weather systems in this rainy event; the high level divergence on 200 hPa in the south of east Asia westerly jet and in the northeast of south Asia high was the dynamic mechanism of a long time consecutive rainy days; the frequently tropical cyclone activity was conducive to sustained warm moist air flows in the outside of the north subtropical high to form the rainy days in the mountainous region of the middle Shandong; strong cold air moved southward and subtropical high quickly withdrew southward and eastward to the sea was the obvious sign that the rain was coming to an end.
Keywords:central mountainous area of Shandong  the subtropical high  characteristics of physical field
本文献已被 CNKI 等数据库收录!
点击此处可从《中国农学通报》浏览原始摘要信息
点击此处可从《中国农学通报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号