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

全球海气相互作用关键区及区内气候特征分析
引用本文:张卫青,钱永甫.全球海气相互作用关键区及区内气候特征分析[J].热带气象学报,2001,17(1):23-33.
作者姓名:张卫青  钱永甫
作者单位:南京大学大气科学系,
基金项目:国家攀登A“南海季风试验”项目!《国家重点基础研究发展规划》我国重大气候和天气灾害形成机理和 预测理论研究项目!(G1998040901-3)
摘    要:采用合成分析方法研究了南海夏季风的爆发过程及其前期征兆。研究结果表明,在南海夏季风爆发之前,对流首先在中南半岛出现,随后在临近南海夏季风爆发时,菲律宾附近也出现对流活动,这表明菲律宾附近对流活动的出现也是引起南海夏季风爆发的原因之一。在南海夏季风爆发之前,赤道印度洋上(75~95°E)的赤道西风有一次明显的增强过程,它对南海夏季风的爆发也起了十分重要的作用,因为一方面它通过赤道西风的东扩促使南海南部的赤道西风建立和增强;另一方面,它又通过西风的北抬以及激发孟加拉湾的对流扰动发展和北移东传,诱使我国华南沿海西风的增强和南压,从而对南海夏季风爆发产生影响。进一步的研究还表明,印度洋赤道西风和南海南部赤道西风的增强又分别与南半球马斯克林高压、澳大利亚高压的增强以及索马里、85°E附近和105 °E附近向北越赤道气流的增强有关。

关 键 词:南海  夏季风  爆发过程  合成分析  热带对流活动  时空演变  大气环流
文章编号:1004-4965(2001)01-0010-13
收稿时间:1999/11/22 0:00:00
修稿时间:1999年9月27日

KEY AREAS OF AIR-SEA INTERACTION IN GLOBAL OCEANS AND THEIR CLIMATIC FEATURES
ZHANG Wei-qing and QIAN Yong-fu.KEY AREAS OF AIR-SEA INTERACTION IN GLOBAL OCEANS AND THEIR CLIMATIC FEATURES[J].Journal of Tropical Meteorology,2001,17(1):23-33.
Authors:ZHANG Wei-qing and QIAN Yong-fu
Institution:Department of Atmospheric Sciences, Nanjing University, Nanjing 210093, China;Department of Atmospheric Sciences, Nanjing University, Nanjing 210093, China
Abstract:7 key areas of air-sea interaction in the global oceans aredetermined by comprehensive analysis of the global data of monthly mean sea surface temperature (SST), surface wind, temperature, humidity, sea surface sensible heat and latent heat fluxes. The time-lag correlation between SST and each atmospheric element in each key area are focally analyses to expose the same and the different features of air-sea interaction in different key areas. The results show that the air-sea thermal interaction is strong in each area, SST, temperature and humidity can be fairly replaced with one another, particularly in the central eastern Pacific and the south India Ocean. The dynamic effect on SST is different in different areas and in the central western Pacific such effect is more important. The correlation between sensible heat, latent heat and SST are more significant in the eastern Pacific, the western Pacific and the two major monsoon areas -- the northwestern Pacific and the south India Oceans. By analyzing the sustainable correlation probability of SST and every atmospheric element in each key area, we further know that the anomalies of which element, in which area and in which period are well sustained or easily destroyed. This is beneficial not only to prediction, but also to discussion of the physical mechanism of air-sea interaction.
Keywords:summer monsoon overSouth China Sea  onset process  composite analysis
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《热带气象学报》浏览原始摘要信息
点击此处可从《热带气象学报》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