西北太平洋热带气旋灾害空间风险评估数据集(1980‒2022)的研发与内容

Dataset of Risk Assessment of Tropical Cyclone on the Western North Pacific Basin(1980-2022)

热带气旋是指产生于热带或副热带洋面上的气旋性涡旋,常伴随大风、巨浪、暴雨等灾害现象,造成巨大的人员伤亡和直接经济损失。中国是受热带气旋影响最严重的国家之一,科学评估热带气旋的灾害风险,对开展海洋生态环境保护、促进我国海洋经济高质量发展有重要意义。作者基于《西北太平洋热带气旋最佳路径数据集》,结合核密度算法,对1980-2022年间所记录的99°E-160°E,2°N-52°N范围内的热带气旋路径数据进行分析;得到西北太平洋海域受热带气旋灾害的影响程度,并划分灾害风险等级;同时测算1980-2022年间中国陆域累计受热带气旋灾害的侵扰次数,从而得到西北太平洋热带气旋灾害空间风险评估数据集(1980-2022)。数据结果表明,菲律宾海及中国南海海域受热带气旋灾害的影响最为严重,具有最高的风险等级;中国陆域地区受热带气旋侵扰的累计次数表现为由沿海向内陆地区逐渐递减的规律;海南省受热带气旋灾害的侵扰次数最多,其次是台湾省、广东省雷州半岛地区。本数据集内容包括:(1)西北太平洋海域热带气旋灾害风险等级;(2)中国陆域累计受热带气旋侵扰次数;(3)西北太平洋热带气旋统计信息。数据集存储为.tif和.xls格式,由3个数据文件组成,数据量为1.15 MB(压缩为1个文件,224 KB)。

A tropical cyclone is a cyclonic vortex that originates on the surface of tropical or subtropical oceans.It can cause several natural disasters including intense winds,large waves,torrential rain,storm surges,and others,all of which can seriously harm human lives and productivity.China is one of the nations most severely affected by tropical cyclones,suffering enormous annual losses of human life and direct financial damage in the Western North Pacific basin.Hence,for the preservation of the marine biological environment and the growth of the marine economy,scientific evaluation of the risk level of tropical cyclone disasters is important.The China Meteorological Administration’s“TC best-track datasets for the Western North Pacific basin”served as the foundation for this dataset.An analysis of the tropical cyclone track data obtained between 1980 and 2022 was conducted using the ArcGIS platform and Python application.First,the kernel density approach was used to examine the degree of impact of tropical cyclones in the Western North Pacific basin between 99°E–160°E and 2°N–52°N,classifying the danger of disaster.Second,the total number of tropical cyclones that occurred in China's land area from 1980 to 2022 was calculated.The findings indicate that:(1)The South China Sea and the Philippine Sea have the highest risk levels and are most severely impacted by tropical storms in the Western North Pacific basin.(2)The pattern of gradually decreasing tropical cyclone frequency from coastal to interior locations is evident in China’s land area.Hainan province experienced the highest number of tropical cyclones,followed by Taiwan province and Leizhou Peninsula in Guangdong province.The dataset comprises the following components:(1)the risk level of tropical cyclone disasters in the Western North Pacific basin,(2)the cumulative number of tropical cyclones in the Chinese land area,and(3)tropical cyclone statistics for the Western North Pacific basin.The dataset was archived in.tif and.xls formats,consisting of three data files with a data size of 1.15 MB(compressed into one file,224 KB).