热带大气运动的Rossby孤波

SOLITARY ROSSBY WAVES OF TROPICAL ATMOSPHERIC MOTION

中文摘要:

      本文从初始方程出发,导出描述低纬大气Rossby孤波的K-dY方程,指出这类波动具有非地转特性,因而不同于Redekopp等人研究过的准地转Rossby孤波。由于存在非线性作用,这类波动也不同于传统的热带线性波动。作者认为热带大气中某些波动的稳定性正反映了孤波能量不频散的特征。

英文摘要:

      In this paper, starting from the primitive equations, the authors derive the K-dV equation which describes the solitary Rossby waves in the tropical atmosphere, and indicate that since these waves are ageostrophic, they differ from the quasi-geostrophic solitary Rossby waves studied by Redekopp etc. Owing to the non-linear action,these waves are also different from the linear waves of the tropical atmosphere. The authors believe that the persistency of some tropical atmospheric waves reflects the characteristic of the solitary waves that energy does not disperse.