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对数场面气压梯度的数值计算方法比较
Comparative Experiments on Methods for Calculating Logarithmic Surface Pressure Gradient in Spherical Coordinates
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摘要: 在192×96球面高斯格点上，我们用几种常用的数值计算方法，计算一个理想的地气系统的对数场面气压梯度，通过对比可以得出，在这样的网格点上，用样条函数方法计算对数场面气压梯度的结果比用谱方法（包括T21，T42，T63）的计算结果好。Abstract: With several kinds of numerical methods commonly used, the logarithmic surface pressure gradient of an ideal earth-atmosphere system is calculated on 192×96 Gaussian grid points Comparative experiments show that, on such grid points, calculations with the spline method are better than those with spectral methods including T21, T42 and T63.
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