准地转动量近似下风速切变线上的波动

STABILITY OF THE NONLINEAR WAVE ON THE HORIZONTAL SHEAR-LINE OF WIND WITY THE GEOSTROPHIC MOMENTUM APPROXIMATION

利用准地转动量近似下的斜压两层大气的非线性方程组及非线性边界条件，研究了切变线上波动的稳定性，导出了切变线上孤立波解。较好地解释了切变线上易产生低涡等天气系统现象。

n this paper. stability Of the nonlinear waves that are prepuced by horizontal shearing of wind in the geostrophic momentum approximation two-level atmesphric model are discussed. The solution of solitary is obtained. The analytical solution of the nonlinear equation and nonlinear boundary conditions explains well the weather phenomena that vortex is easy to produce on the horizontal shear-line of wind.