测绘通报 ›› 2021, Vol. 0 ›› Issue (12): 71-74,82.doi: 10.13474/j.cnki.11-2246.2021.375

• 学术研究 • 上一篇    下一篇

基于随机森林模型的台风风暴潮最大增水预测

朱佩京, 罗年学, 赵前胜   

  1. 武汉大学测绘学院, 湖北 武汉 430079
  • 收稿日期:2020-11-17 发布日期:2021-12-30
  • 作者简介:朱佩京(1996-),女,硕士生,主要研究方向为海洋安全。E-mail:1136755410@qq.com
  • 基金资助:
    国家重点研发计划(2017YFC1405300)

Forecast of maximum water increase in typhoon storm surge based on random forest model

ZHU Peijing, LUO Nianxue, ZHAO Qiansheng   

  1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China
  • Received:2020-11-17 Published:2021-12-30

摘要: 本文利用1989—2018年在广东省、福建省、浙江省登陆的98场台风风暴潮数据,选取最小中心气压、最大风速、登陆时中心气压、登陆时风速、登陆时台风强度、登陆地点、登陆方向7个输入因子,采用随机森林回归模型构建预测台风风暴潮最大增水的模型,并用真实数据进行验证。将模型应用于未来年份台风风暴潮的预测,以2019年台风“利奇马”为例验证了模型的实用性。利用Mike21软件模拟的验潮站最大增水构建验潮站最大增水预测模型,并应用于广东省港口站和北津站的最大增水预测,试验结果表明具有可行性。

关键词: 随机森林, 台风风暴潮, 最大增水, 验潮站

Abstract: Using 98 typhoon storm surges that landed in Guangdong, Fujian, and Zhejiang provinces from 1989 to 2018.Seven input factors of minimum central pressure, maximum wind speed, central pressure at landing, wind speed at landing, typhoon intensity at landing, landing location, and landing direction are selected, and a random forest regression model is used to predict the maximum water increase duing to typhoon storm surge, and it is verified with real data. The model is applied to the prediction of typhoon storm surges in the coming years, and the practicability of the model is illustrated by taking Typhoon Lichma in 2019 as an example. The maximum water increase at tide gauge stations simulated by Mike21 software is used to construct a prediction model for the maximum water increase at tide gauge stations, which is planned to be applied to the prediction of the maximum water increase at the port station and Beijin station in Guangdong province. The results show that it is feasible.

Key words: random forest, typhoon storm surge, maximum water increase, tide gauge station

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