摘要
文章利用线性趋势法、水文变异综合诊断系统以及标准化降水指数对茂名市1980—2021年降水、气温序列进行分析,发现茂名市降水呈微弱减少趋势,每年减少1.04 mm,而气温呈较为明显的上升趋势,增加幅度为0.156℃/10 a,降水和气温分别于1986和2019年发生跳跃变异,标准化降水指数揭示2020年开始茂名市气候状况变化为偏干旱。
By using the linear trend method,the comprehensive diagnosis system of hydrological variation and the standardized precipitation index,this paper analyzes the precipitation and temperature series in Maoming City from 1980 to 2021.It was found that the precipitation in Maoming City showed a slight decreasing trend,with an annual decrease of 1.04 mm,while the temperature showed a more obvious upward trend,with an increase of 0.156 ℃ per 10 years.The precipitation and temperature jumped in 1986 and 2019 respectively.The standardized precipitation index revealed that the climate change in Maoming City began to be dry in 2020.
作者
马路金
陈冰
宋祖钦
李剑金
Ma Lujin;Chen Bing;Song Zuqin;Li Jianjin(Huazhou Meteorological Bureau of Guangdong,Huazhou 525100)
出处
《气象水文海洋仪器》
2023年第3期67-69,72,共4页
Meteorological,Hydrological and Marine Instruments
基金
茂名市科技计划项目(2019455)资助。
关键词
茂名市
气候变化
趋势分析
降水指数
洪水灾害
预报预警
风险分析
Maoming City
climate change
trend analysis
precipitation index
flood disaster
forecast and early warning
risk analysis
