基于FY-2遥感数据的台风中心定位

doi:10.13474/j.cnki.11-2246.2020.0179

测绘通报 ›› 2020, Vol. 0 ›› Issue (6): 49-52.doi: 10.13474/j.cnki.11-2246.2020.0179

基于FY-2遥感数据的台风中心定位

刘佳^1,2, 王旭东¹

1. 商丘师范学院信息技术学院, 河南商丘 476000;
2. 数学工程与先进计算国家重点实验室, 河南郑州 450000

收稿日期:2019-08-12 修回日期:2020-03-21 出版日期:2020-06-25 发布日期:2020-07-01
作者简介:刘佳(1984-),男,博士,讲师,主要研究方向为遥感数据处理与模式识别。E-mail:sqsylj@126.com
基金资助:
河南省科技攻关项目（202102210158；202102110275）；河南省高等学校重点科研项目（20B520028）

Typhoon center location method based on FY-2 remote sensing data

LIU Jia^1,2, WANG Xudong¹

1. School of Information Technology, Shangqiu Normal University, Shangqiu 476000, China;
2. State Key Laboratory of Mathematical Engineering and Advanced Computing, Zhengzhou 450000, China

Received:2019-08-12 Revised:2020-03-21 Online:2020-06-25 Published:2020-07-01

摘要/Abstract

摘要： 针对台风在形成和消散阶段中心定位准确率较低的问题，本文提出了一种基于云导风的方法，使用的遥感数据来源于FY-2气象卫星的红外通道。该方法首先对红外序列遥感图像进行金字塔分解，然后基于加权的中值滤波光流模型构建云导风场，最后利用密度矩阵计算台风中心。选择2014年真实形成于西北太平洋的台风Rammasun和Halong进行案例分析，结果表明该方法对台风整个生命周期阶段的检测结果均较准确。

关键词: FY-2遥感数据, 台风, 中心定位, 云导风, 密度矩阵

Abstract: Typhoon center location hasthe problem of low accuracy in formation and dissipation period. For this problem, a novel method based on cloud motion wind is proposed using infrared remote sensing data from FY-2 geostationary meteorology satellite. First, pyramid decomposition is performed on remote sensing infrared sequence images. Second, the optical flow model with weighted median filtering is developed to build cloud motion wind field. Third, the density matrix method is used to calculate typhoon center. Rammasun and Halong that formed in the Pacific Northwest in 2014 are selected for case study. Results show that the method is accurate for the whole life cycle of typhoon.

Key words: FY-2 remote sensing data, typhoon, center location, cloud motion wind, density matrix

中图分类号:

P237

刘佳, 王旭东. 基于FY-2遥感数据的台风中心定位[J]. 测绘通报, 2020, 0(6): 49-52.

LIU Jia, WANG Xudong. Typhoon center location method based on FY-2 remote sensing data[J]. Bulletin of Surveying and Mapping, 2020, 0(6): 49-52.

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基于FY-2遥感数据的台风中心定位

Typhoon center location method based on FY-2 remote sensing data

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