| 计算几何法在风暴识别中的应用 |
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| 引用本文： | 徐月飞,顾松山,黄兴友,何建新. 计算几何法在风暴识别中的应用[J]. 热带气象学报, 2011, 27(2): 173-178. DOI: 10.3969/j.issn.1004-4965.2011.02.005 |
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| 作者姓名： | 徐月飞 顾松山 黄兴友 何建新 |
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| 作者单位： | 1. 南京信息工程大学大气物理学院,江苏南京,210044
2. 成都信息工程学院电子工程学院,四川成都,610225 |
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| 基金项目： | 中国气象局大气探测重点开放实验室“冰雹的雷达探测研究”资助 |
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| 摘 要： | 风暴的合并与分裂对其发展有着重要的影响，是风暴识别与追踪工作中的难点问题。为了避免由资料处理过程引起的虚假合并，以及通过识别风暴的合并与分裂临界区域，对判断风暴的发展趋势提供有效的追踪参数，基于SCIT(Storm Cell Identification and Tracking Algorithm)风暴识别的基础，利用计算几何的凸壳与DT(Delaunay Triangle)算法，结合风暴内部的结构信息，识别出了风暴带以及风暴带合并与分裂的临界区域。并且给出了实现的个例以及算法的评价结果，为风暴合并与分裂的追踪工作提供了一个新的参数。
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| 关 键 词： | 雷达气象学；风暴识别；计算几何；风暴合并 |
APPLICATION OF COMPUTATIONAL GEOMETRY IN STORM IDENTIFICATION |
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| XU Yue-fei,GU Song-shan,HUANG Xing-you,HE Jian-xing. APPLICATION OF COMPUTATIONAL GEOMETRY IN STORM IDENTIFICATION[J]. Journal of Tropical Meteorology, 2011, 27(2): 173-178. DOI: 10.3969/j.issn.1004-4965.2011.02.005 |
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| Authors: | XU Yue-fei GU Song-shan HUANG Xing-you HE Jian-xing |
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| Affiliation: | XU Yue-fei1,GU Song-shan1,HUANG Xing-you1,HE Jian-xing2 (1.Department of Atomospheric Physics,NUIST,Nanjing 210044,China,2.School of Electronic Engineering,CUIT,Chengdu 610225,China) |
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| Abstract: | The mergers and splits of storm have an important influence on the development of storms,which is one of the hard issues in strom identificaion and tracking.In order to avoid false mergers caused by data processing and to provide effective tracking parameters for the development trend of the storm,computational geometry which included convex hull and DT(Delaunay Triangle) algorithm was used to identify the outline of storm and the regions of storm mergers and splis critical,based on SCIT(Storm Cell Identifi... |
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| Keywords: | radar meteorology storm identification computational geometry storm mergers |
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