摘要
为了分析和平县气候变化趋势,文章借助线性趋势分析、Mann-Kendall突变检验及滑动T检验方法对和平县1968-2017年日照变化进行了分析。研究结果表明:和平县1968-2017年日照时数变化明显,整体呈现减少趋势,年日照时数的减少趋势明显;季节变化呈现出减少趋势,主要发生在夏季,倾向率为每年-3.122 h;日照时数突变点在1993年;日照时数减少的主要原因是总云量和低云量的增多。研究结果能够为和平县天气预报工作提供参考。
In order to analyze the climate change trend in Heping County,the sunshine change in Heping County in 19682017 was analyzed by linear trend analysis,Mann Kendall mutation test and sliding T test method.The research results show that the sunshine duration in Heping County has changed significantly in 19682017,showing an overall decreasing trend,with a significant decrease in annual sunshine duration.The seasonal changes show a decreasing trend,mainly occurring in summer with a tendency rate of-3.122 h per year.The sudden change in sunshine duration occurred in 1993.The main reason for the decrease in sunshine duration is the increase in total cloud cover and low cloud cover.The research results can provide reference for weather forecasting work in Heping County.
作者
郭友福
曾钦文
谢芸洁
刘仕婷
陶坚
Guo Youfu;Zeng Qinwen;Xie Yunjie;Liu Shiting;Tao Jian(Heping County Meteorological Bureau of Guangdong Province,Heping 517200;Heyuan City Meteorological Bureau of Guangdong Province,Heyuan 517000;Dongyuan County Meteorological Bureau of Guangdong Province,Dongyuan 517500)
出处
《气象水文海洋仪器》
2024年第3期67-70,共4页
Meteorological,Hydrological and Marine Instruments
基金
广东省气象局科学技术研究项目(GRMC2021XQ06)
河源市科技特派员项目(河科[2022]49号)
河源市气象局科技创新团队项目(HYQXTD202202)资助。
