数值模拟主要是采用数值方法来模拟大气的运动和变化规律。大气运动非常复杂，描述它的方程组也非常复杂，目前还没有解析解，只能求它的数值解。计算机是必备条件。(Numerical simulation mainly uses numerical method to simulate the movement and change law of the atmosphere. The motion of the atmosphere is very complex, and the equations