| 考虑背景风压场影响的边界层数值模式 |
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| 引用本文： | 赵鸣.考虑背景风压场影响的边界层数值模式[J].大气科学,1997,21(2):247-256. |
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| 作者姓名： | 赵鸣 |
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| 作者单位： | 南京大学大气科学系,,南京 210093 |
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| 基金项目： | 国家自然科学基金资助项目49575248 |
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| 摘 要： | 本文提出一个在中性情况下边界层数值模式中考虑背景风压场影响的方法。背景风压场的水平非均匀影响了边界层运动方程中的惯性力项及边界层的上界风速。本文把三维问题用一种线性化方法简化为一维问题，只要知道背景气压场的空间分布，即可求出考虑了背景场影响的边界层风场。
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| 关 键 词： | 边界层 背景场 数值模式 |
A PBL Numerical Model Considering the Effects of Background Wind and Pressure Fields |
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| Zhao Ming.A PBL Numerical Model Considering the Effects of Background Wind and Pressure Fields[J].Chinese Journal of Atmospheric Sciences,1997,21(2):247-256. |
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| Authors: | Zhao Ming |
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| Abstract: | A method considering the effects fron both background wind and pressure fields in the neutral Planetary Boundary Layer (PBL) model is suggested in this paper. The horizontal nonhomogeneity of the background wind and pressure fields influences the term of the inertial force in the motion equation and the wind speed at the upper boundary of the PBL.A linearized method is suggested to simplify the problem with three dimensions into the problem with one dimension. According to this method, the wind field considering the effects of background fields in the PBL can be obtained as long as the spatial distribution of the background pressure field is given. |
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| Keywords: | boundary layer background field numerical model |
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