赤道地区大气的超长波波动
ON THE ULTRA-LONG WAVES IN THE EQUATORIAL ZONE
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摘要: 浅水波方程写在赤道β平面上并根据大气运动的平均状态线性化,得到了线性化方程组的特征方程,解出了它的特征根和特征向量。发现由于东风切变的存在,可以产生自西向东传播的Rossby波。还给出了波数为1和2的一些超长波的图形。Abstract: The shallow water equations written in an equatorial β-plane are linearized around the mean state of the atmospheric motion. An eigenproblem is derived. Its eigenvalues and eigenvectors are calculated. It is shown that a propagating east-ward Rossby wave may be induced by the easterly wind shear. Some of the ultra-long wave patterns are also drawn.
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