余斌,黄荣辉. 1996. 热带对流活动对热带内外地区环流季内遥相关变化的作用[J]. 气象学报, 54(3):272-281, doi:10.11676/qxxb1996.028
热带对流活动对热带内外地区环流季内遥相关变化的作用
THE ROLE OF THE TROPICAL CONVECTION ON THE VARIATIONS OF INTRASEASONAL TELECONNECTIONS OF TROPICAL AND EXTRATROPICAL CIRCULATIONS
投稿时间:1994-07-30  修订日期:1995-01-12
DOI:10.11676/qxxb1996.028
中文关键词:  30—60d低频域  热带对流  大气环流  低频扰动动能
英文关键词:30-60 day Low frequency domain  Tropical convection  Atmosphere general circulation  Low frequency perturbation kinetic energy
基金项目:
作者单位
余斌 中国科学院大气物理研究所, 北京, 100080 
黄荣辉 中国科学院大气物理研究所, 北京, 100080 
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中文摘要:
      基于ECMWF客观分析资料,本文采用诊断分析的方法研究了1983/1984和1986/1987两年冬季季内30-60d低频域中热带对流与热带外环流以及低频扰动动能频散之间的关系。结果表明,热带对流强度上的差异可以造成热带内外地区季内遥相关波列以及低频波能频散上的差别。热带对流作用可以是联系热带内外地区季内遥相关作用的一个重要的衔接因子。
英文摘要:
      Based on ECMWF objective analysis data in winter years of 1983/84 and 1986/87, the relationships between the tropical convection and the extratropical circulation,as well as the low frequency perturbation kinetic energy, on intraseasonal time scale are investigated by use of diagnostic analysis methods.Through this study, it can be found that the difference of tropical convective intensities can bring about both the different intraseasonal teleconnection wave trains between the tropical and extratropical zones and the different dispersions of low frequency wave energy. Moreover, the tropical convection can be of an important junction factor for the intraseasonal teleconnection effect of tropical and extratropical circulations.
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