摘要
应用河北省沧州市国家一般气象观测站1992—2021年的逐日最高气温、平均气温、最低气温、降水量、日照时数等气象要素资料,分析了沧州市二十四节气气候变化特征,结果发现:沧州市最高气温、平均气温、最低气温的变化过程基本一致,呈现出准正态分布的单峰型特点;降水量呈单峰型分布,由谷雨逐渐增大,至大暑节气降水量最大,最小值出现在大雪节气;沧州市平均日照时数最长是立夏,为9.2 h,最短是寒露,为4.7 h,相邻节气日照时数差值曲线波动性较强,最大值出现在立夏,日照时数较上一个节气增加1.7、1.3 h。最小值是寒露,日照时数较上一个节气减少2.3 h。
Using meteorological data from the National General Meteorological Observatory of Cangzhou City,Hebei Province from 1992 to 2021,including daily maximum temperature,average temperature,minimum temperature,precipitation,and sunshine hours,the climate change characteristics of the 24 solar terms in Cangzhou City were analyzed.The results showed that the change processes of the highest temperature,average temperature,and lowest temperature in Cangzhou City were basically consistent,showing a quasi normal distribution of single peak characteristics;The precipitation is distributed in a unimodal pattern,gradually increasing from valley rain to the maximum precipitation during the heatwave season,with the minimum occurring during the snowy season;The longest average sunshine duration in Cangzhou City was at the beginning of summer,which is 9.2 hours,and the shortest was at the cold dew,which is 4.7 hours.The difference curve of sunshine duration between adjacent solar terms has strong volatility,with the maximum value appearing at the beginning of summer,and the sunshine duration increasing by 1.7 and 1.3 hours compared to the previous solar term.The minimum value was Cold Dew,with a decrease of 2.3 hours of sunshine compared to the previous solar term.
作者
张倩
Zhang Qian(Cangzhou Meteorological Bureau,Hebei Province,Cangzhou,Hebei 061000)
出处
《农业灾害研究》
2023年第8期252-254,共3页
Journal of Agricultural Catastrophology
关键词
二十四节气
气候特征
气象服务
24 solar terms
Climate characteristics
Meteorological services
