根据以前的 parameterization 计划,认为两个是碎的波浪并且在批评水平吸收了,有严肃波浪的连续光谱的 parameterization 被为波浪光谱,然后严肃波浪的 parameterization 计划介绍动量流动密度功能认识到被改进。基于观察选择背景空气和波浪的参数值,开车由的更现实主义的赤道的伪二年的摆动(QBO ) 合并拖从行星并且严肃波浪能被模仿。数字结果显示强迫的大小行星并且严肃波浪与风地变化,并且 QBO 在一些分阶段执行,严肃波浪的贡献与行星的波浪的是可比较的。在 QBO 稳定地被形成以后,然而,它的振幅和时期和风配置与光谱与垂直散开和动量流动分发的效果相关独立于起始的背景风地。而且,为任何东西给非零起始的背景风,稳定的 QBO 能最后被产生由于合并拖从行星并且严肃波浪。
On the basis of previous parameterization schemes, considering both the wave breaking and absorbed at critical level, a parameterization with a continuous spectrum of gravity waves is realized by introducing a momentum flux density function for the wave spectrum, and then the parameterization scheme of the gravity waves is improved. Choosing parameter values of the background atmosphere and waves based on the observations, a more realistic equatorial quasi-biennial oscillation (QBO) driven by the incorporated drag from the planetary and gravity waves can be simulated. The numerical results indicate that the forcing magnitude of the planetary and gravity waves varies with the wind field, and in some phases of the QBO, the contribution of the gravity waves is comparable with that of the planetary waves. After the QBO is steadily formed, its amplitude and period and wind configuration are relevant to the effect of vertical diffusion and the momentum flux distribution with spectrum, however, independent of the initial background wind field. Moreover, for any given nonzero initial background wind, a steady QBO can be finally generated due to the incorporated drag from the planetary and gravity waves.