STUDY ON DYNAMICS OF TROPICAL CISK-ROSSBY WAVES AND MECHANISM OF 30-50 DAY OSCILLATIONS  

作　　者：张韧 余志豪 蒋全荣 

机构地区：[1]Meteorological College, China PlA University of Science and Engineering, [2]Department of Atmospheric Sciences, Nanjing University,

出　　处：《Journal of Tropical Meteorology》2001年第1期69-79,共10页热带气象学报（英文版）

基　　金：Natural Science Foundation of China (49975012); Key Teacher Foundation of Education Ministry

摘　　要：To add to the growing mature research on the tropical 30-50 day oscillations from a new prospective, the current work bases on dynamic analysis of baroclinic quasi-geostrophic models to discuss dynamic mechanisms for the generation and propagation of CISK-Rossby waves, and to understand restraints and effects of different wave structures and thermodynamic forcing on the 30-50 day oscillations in the tropical atmosphere. Some important properties of the oscillation propagation have been explained and, in detail, with respect to its meridional propagation and vertical "baroclinic" structure. The work has come up with some new opinions and viewpoints. New opinions about the propagation and energy dispersion are to be proved by more observations and study.To add to the growing mature research on the tropical 30-50 day oscillations from a new prospective, the current work bases on dynamic analysis of baroclinic quasi-geostrophic models to discuss dynamic mechanisms for the generation and propagation of CISK-Rossby waves, and to understand restraints and effects of different wave structures and thermodynamic forcing on the 30-50 day oscillations in the tropical atmosphere. Some important properties of the oscillation propagation have been explained and, in detail, with respect to its meridional propagation and vertical 'baroclinic' structure. The work has come up with some new opinions and viewpoints. New opinions about the propagation and energy dispersion are to be proved by more observations and study.

关 键 词：CISK-Rossby wave 30-50 day oscillation thermodynamic forcing 

分 类 号：P433[天文地球—大气科学及气象学]