摘要
以1977—2018年整个西北太平洋台风数据为基础,利用MATLAB、ArcGIS等软件对台风的频数、强度等进行统计特征分析,重点突出多年来台风在我国各地区的登陆情况。结果显示:1977—2018年西北太平洋台风年频数变化呈波动减少的趋势,特别是1994年以来,台风发生频数显著减少,但近几年频数有所上升。西北太平洋台风强度变化不明显,但存在频数增大强度变小,频数减小强度变大的特点。夏季和秋季发生的台风占总数的85%,秋季的台风强度最高,其最大平均风速可达37 m/s。42年期间,登陆我国台风共计314个,年均约7.5个,其频数和强度由沿海地区向内陆地区逐渐递减。
Based on typhoon data of the Northwest Pacific from 1977 to 2018,this study used MATLAB and ArcGIS to analyze the statistical characteristics of the frequency and intensity of the typhoons.The temporal and spatial distributions of typhoon landing in China were focused.The results show that the annual frequency of typhoon has a fluctuant decrease trend in the Northwest Pacific.Especially after 1994,the frequency of typhoons decreased significantly,but increased in recent years.The variations in the intensity of typhoons were not obvious.There was a characteristic that the frequency increased with the intensity decreased,and the frequency decreased with the intensity increased.Typhoons in summer and autumn accounted for 85%of the total,and the intensity of typhoons were the strongest in autumn,with an averaged maximum wind speed of 37 m/s.During the 42-year period,there were 314 typhoons landing in China,with an average annual rate of 7.5.The frequency and intensity of the typhoons from the coastal areas to the inland areas gradually decreased.
作者
王杰
王洁
代金圆
杨奕杰
吕阳阳
WANG Jie;WANG Jie;DAI Jin-yuan;YANG Yi-jie;LüYang-yang(College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China;Shanghai Engineering Research Center of Estuarine and Oceanographic Mapping,Shanghai 201306,China;Second Institute of Oceanography,Ministry of Natural Resources,Hangzhou 310012,China)
出处
《海洋湖沼通报》
CSCD
北大核心
2021年第6期28-33,共6页
Transactions of Oceanology and Limnology
基金
浙江省自然科学基金(LY14D010008)。
关键词
西北太平洋
中国
台风
特征
the Northwest Pacific
China
typhoons
characteristics
