结果表明：由浮力项、平流项和拖曳力项触发引起的扰动气压垂直梯度力与各对应源项具有同等量级，但与其源项的作用力方向相反。
The results show that the perturbation pressure forces induced by buoyancy, velocity advection and dray are of the same order of magnitude as the corresponding resource terms and act against them.
两垂直坐标下气压梯度力计算误差在低层两者相差不大，但是往高层高度坐标的气压梯度力误差要明显小于质量坐标。
PGF errors are a little difference between the two coordinates in lower levels, but PGF errors of the height coordinate are obviously smaller than those of the mass coordinate in higher levels.
两垂直坐标下气压梯度力计算误差在低层两者相差不大，但是往高层高度坐标的气压梯度力误差要明显小于质量坐标。
PGF errors are a little difference between the two coordinates in lower levels, but PGF errors of the height coordinate are obviously smaller than those of the mass coordinate in higher levels.
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