| 三维空气质点轨迹的计算 |
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| 引用本文： | 朱艳秋,廖洞贤.三维空气质点轨迹的计算[J].应用气象学报,1992,3(3):328-333. |
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| 作者姓名： | 朱艳秋 廖洞贤 |
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| 作者单位： | 1.国家气象中心 北京100081
(朱艳秋)，国家气象中心 北京100081(廖洞贤) |
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| 摘 要： | 首先讨论了空气质点轨迹的计算方法，然后利用一个十层有限区域原始方程模式作了计算。根据计算的流场和12小时一次的常规观测资料，进行了时间分辨率从30分钟到12小时的轨迹精度分析。结果表明，3小时以内的时间采样可以很好地描述质点轨迹，而12小时采样对于绝大多数质点都有明显的误差。
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| 关 键 词： | 天气 空气质点 轨迹 三维计算 |
An Investigation for Computing Three-Dimensional Trajectory |
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| Institution: | (National Meteorological Center, SMA, Beijing, 100081) |
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| Abstract: | A method for computing the trajectory is presented, and then a case study is made with the method by using a ten-level primitive equation model. Comparing the results obtained from the data with different time intervals ranging from 30 minutes to 12 hours, including the conventional observations only twice a day shows that using those data with the intervals equal to or less than 3 hours can lead to accurate trajectory computations while significant discrepancies are found with 12 hour interval. |
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