| 用数值模拟与观测资料相拟合的方法构造边界层流场 |
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| 引用本文： | 余金香,邱崇践.用数值模拟与观测资料相拟合的方法构造边界层流场[J].应用气象学报,1997,8(3):302-309. |
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| 作者姓名： | 余金香 邱崇践 |
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| 作者单位： | 1.兰州大学大气科学系 |
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| 摘 要： | 该文用最优化方法修正边界层模式的外强迫项，使模式输出结果最好地拟合有限的观测资料。目标函数相对于参数的梯度用扰动法计算。利用模式资料和在兰州市的实测资料所作的数值试验表明，该方法是合理的。
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| 关 键 词： | 边界层 最优化 数值模拟 |
Construction of PBL Wind Fields by Fitting Numerical Simulation Output with Observations |
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| Yu Jinxiang,Qiu Chongjian.Construction of PBL Wind Fields by Fitting Numerical Simulation Output with Observations[J].Quarterly Journal of Applied Meteorology,1997,8(3):302-309. |
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| Authors: | Yu Jinxiang Qiu Chongjian |
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| Affiliation: | 1.(Department of Atmospheric Science, Lanzhou University, Lanzhou 73000) |
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| Abstract: | The optimazation method is used to modify some external forcing terms in the PBL model. By this way the output of the model is fitted with the observations, and wind fields in the PBL are produced. The gradients of the objective function with respect to the parameters are obtained through perturbation method. Furthermore, the reasonableness of this method is tested by using the model data and the observations in Lanzhou city. |
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| Keywords: | Boundary layer Optimization Numerical simulation |
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