行星波，又称罗斯贝波。是一种长波，波长（两个相邻槽线或脊线之间的东西距离）为3000~10000km，相当于50~120个经距。全纬圈约为3~7个波，振幅一般为10~20个纬距，平均移动速度在10个经距/日以下，有时很慢，呈准静止，甚至会向西倒退。在中高纬度地区，其水平尺度可大到同地球半径相比拟。
影片中：与我们的太阳非常相似的半人马座阿尔法甲发出淡黄色的光芒，光芒照耀下的是巨大的气态行星波吕斐摩斯和它的卫星——炎热的潘多拉。
In Avatar: the white-yellow glow of Alpha Centauri a, a star very similar to our Sun, illuminates the giant gaseous planet Polyphemus and its tropical moon Pandora.
观测和模拟结果都表明，在北半球冬季准定常行星波的经向传播存在两支波导。
Both observations and simulations indicate that in the Northern Hemisphere winter there are two waveguides for the meridional propagation of quasi-stationary planetary waves.
相关及回归分析发现，行星波的年际变化与北极涛动有密切联系。
The regression and correlation analysis suggests the interannual variation of quasi-stationary planetary wave is closely associated with the AO.
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