摘要
文章基于景德镇国家基本气象站1961—2023年观测资料,运用小波分析、累积距平等方法,分析了景德镇地区平均气温、降水、日照及暴雨、高温等高影响天气的气候变化特征。结果显示:景德镇市年平均气温呈0.028℃/年的上升趋势,极端最低气温也呈显著的上升趋势,但平均高温日数、高温强度均无显著线性变化;平均年降水量、平均年降雨日数、暴雨日数均呈准20年、准5年周期性变化,暴雨强度的周期性变化最为明显,20世纪90年代以前主周期呈准25年变化,20世纪90年代至21世纪10年代中期主周期有所缩短,为准20年变化,21世纪10年代中期以后主周期明显缩短,为准9年变化;平均年日照时数呈明显下降趋势。
Based on the observation data of Jingdezhen National Basic Meteorological Station from 1961 to 2023,the climate change characteristics of the average temperature,precipitation,sunshine,rainstorm,high temperature and other high impact weather in Jingdezhen are analyzed by using wavelet analysis and cumulative distance equality method.The results showed that the annual average temperature in Jingdezhen City showed an upward trend of 0.028℃/year,and the extreme minimum temperature also showed a significant upward trend,but there was no significant linear change in the average number of high temperature days and high temperature intensity.The average annual precipitation,average annual rainfall days and rainstorm days all show quasi 20-year and quasi 5-year periodic changes,and the periodic change of rainstorm intensity is the most obvious.The main cycle before the 1990s showed quasi 25 year change,the main cycle from the 1990s to the middle of the 2010s shortened,which is quasi 20-year change,and the main cycle after the middle of the 2010s shortened significantly,which is quasi 9-year change.The average annual sunshine hours show a significant downward trend.
作者
陈昆
艾琳霖
陈凤英
Chen Kun;Ai Linlin;Chen Fengying(Jingdezhen Meteorological Bureau,Jingdezhen 333000)
出处
《气象水文海洋仪器》
2025年第2期42-46,共5页
Meteorological,Hydrological and Marine Instruments
关键词
景德镇
气象要素
气候变化
小波分析
Jingdezhen
meteorlogical elements
climate change
wavelet analysis
