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气象:2020,46(10):1330-1339
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相似台风智能检索与可视化分析研究
宋文彬,郑卫江,薛峰
(国家气象中心,北京 100081)
Research of Intelligent Retrieval and Visualization of Similar Typhoons
SONG Wenbin,ZHENG Weijiang,XUE Feng
(National Meteorological Centre, Beijing 100081)
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投稿时间:2019-09-24    修订日期:2020-08-15
中文摘要: 不匹配的问题。以台风山竹(Mangkhut,编号1822)为例,首先通过数据清洗、特征提取和构建快速索引等检索方法,缩小判定范围,检索出10个可能与目标相似的台风,然后利用综合定量化判定方法得到7个相似台风。判定过程中实现了基于定制条件的多维度时空数据逐级下钻、定量化综合智能检索以及相似性结果可视化三个目标,为台风预报预警业务提供重要参考。
Abstract:This study uses a spatial analysis and visualization technology to intelligently and similarly search for the regularity of the temporal and spatial variation of typhoons from 1949 to 2018 to form a comprehensive quantitative judgment system based on three key indicators, which are spatial location, feature elements and temporal rule, and to establish initially a unified judgment standard. According to path similarity determination, the method based on the combination of multiple dynamic fitting curves and similar deviation is proposed. The research results show that the comprehensive quantitative judgment system can effectively reduce the uncertainty of single index. And the dynamic judgment method can effectively solve the problem of observation point mismatch. Take Typhoon Mangkhut (1822) as an example. Firstly, we use retrieval methods 〖JP2〗as data cleaning, feature extraction and quick retrieval creation to narrow searching〖JP〗 range, retrieving 10 possible typhoons with similarity to the target, and then we use the comprehensive quantitative judgment method, confirming 7 similar typhoons. During the judgment process, three targets can be achieved, including the multi dimensional spatiotemporal data being drilled down step by step based on customized conditions, the quantitative comprehensive intelligent retrieval and the visualization of similarity results. This can provide important reference for typhoon forecast and early warning operation.
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基金项目:2017年气象小型建设项目高时空分辨率气象预报分布式计算能力建设项目资助
引用文本:
宋文彬,郑卫江,薛峰,2020.相似台风智能检索与可视化分析研究[J].气象,46(10):1330-1339.
SONG Wenbin,ZHENG Weijiang,XUE Feng,2020.Research of Intelligent Retrieval and Visualization of Similar Typhoons[J].Meteor Mon,46(10):1330-1339.