摘要
本文在正压流体中,从包含完整Coriolis参数的准地转位涡方程出发,在弱非线性长波近似下,采用多时空尺度和摄动方法,推导出大气非线性Rossby波振幅演变满足带有地形强迫的非线性Zakharov-Kuznetsov(ZK)-Burgers方程.结果分析表明:地球旋转的水平分量、β效应、地形效应和耗散都是诱导二维Rossby波产生的重要因子.
In barotropic fluids,the nonlinear Zakharov-Kuznetsov（ ZK）-Burgers equation in a potential vorticity equation which includes both the vertical and horizontal components of Coriolis parameter is derived to describe Rossby waves that propagate in a plane by using multiple scales and perturbation expansion method in a weakly nonlinear,long wave approximation. It is show that the horizontal component of the earth＇s rotation plays an important role in the structures of the Rossby waves,at the same time,beta effect,topographic and dissipation effect are also important factor to the Rossby waves.
出处
《地球物理学进展》
CSCD
北大核心
2017年第6期2401-2404,共4页
Progress in Geophysics
基金
国家自然科学基金(11362012)
国家自然科学基金青年科学基金(11202092
11301592)
内蒙古农业大学基础学科科研启动基金(JC2016001)联合资助
