张培忠,杨素兰. 1996. 阻塞高压活动的气候变化及其对中国某些地区旱涝的影响[J]. 气象学报, 54(5):633-640, doi:10.11676/qxxb1996.066
阻塞高压活动的气候变化及其对中国某些地区旱涝的影响
THE CLIMATE CHANGE OF BLOCKING HIGH ANDTHEIR EFFECTS ON DROUGHT AND FLOODOF SOME REGION OF CHINA
投稿时间:1995-03-14  修订日期:1995-09-08
DOI:10.11676/qxxb1996.066
中文关键词:  阻塞高压  气候变化  旱涝
英文关键词:Blocking high  Climate change  Drought and flood
基金项目:国家自然科学基金项目(49265015)
作者单位
张培忠 内蒙古气象科研所, 呼和浩特, 010051 
杨素兰 内蒙古气候中心, 呼和浩特, 010051 
摘要点击次数: 1897
全文下载次数: 2416
中文摘要:
      用1965年到1990年共26a逐日500hPa天气图统计了北半球阻塞高压的活动特征,证实北半球有两个大的活动区。这两个区都有季节和年际变化,总次数有逐年减少趋势。研究了冷暖年份阻塞高压活动的差别,发现与26a平均值相比,暖年次数偏少,冷年偏多,冷暖年之差很显著,在地理分布上有很好的反相关。分析了厄尔尼诺年阻塞高压分布特点,发现厄尔尼诺年乌拉尔山地区阻塞高压较常年显著偏少。内蒙古地区和江淮流域的旱年和多雨年,东半球阻塞高压的地区和数量分布都呈相反趋势。
英文摘要:
      The climate change of blocking high are investigated using thedaily 500 hPa historical synoptic charts from 1965 to 1990. It is found that there are two blocking high active regions in Northern Hemisphere. The number of blocking high had a decrease trend form 1965 to 1990. The frequency of blocking high decreased some that when the hemispheric temperature was higher than the normal, and that of blocking high increased in the cold year. The regional distribution of blocking high for the two typical years has an obviously inverse relationship. There was a large negative anomaly center at the Ural mountains for ENSO year. The inverse distribution of blocking high had been found in the drought years and flood years of Inner Mongolia Autonomous Region. The same relationship was discoverd for Changjiang River and Huaihe Valley.
HTML   查看全文   查看/发表评论  下载PDF阅读器
分享按钮