在气压地形追随坐标中气压梯度力的计算对地表气压计算很敏感。
An ideal experiment exhibits that pressure gradient force computations in the pressure terrain-following coordinate are sensitive to surface pressure.
在数值预报模式中使用这种方法可较好地求得陡坡地区的气压梯度力，改进模式的性能。
The method is also helpful for numerical weather prediction models in providing a better initial data set and improving the accuracy of calculation of pressure gra...
本文则用气候模式对作者提出的有地形数值模式中气压梯度力的误差扣除法进行了模拟检验。
Modelling tests are made in this paper to check the error subtraction scheme of the pressure gradient force in models with topography developed by the authors.
在台风和副热带高压外围之间强气压梯度力产生的偏南暖湿气流为暴雨区带来了丰沛的水汽。
The south warm-wet airflow caused by the strong pressure gradient force between typhoon and Subtropical High supplies the abundant water vapor for the heavy rainstorm area.
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.
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.
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.
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