桂西南沿海地区夜雨气候特征分析

Analysis on Climatic Characteristics of Night Rainfall in Coastal Region of Southwestern Guangxi

通过选取桂西南沿海地区防城港3个国家气象站自建站以来的降水资料进行统计,分析该地区昼夜降水的变化特征。结果表明:桂西南沿海地区防城港市港口区、东兴市两地夜雨相对昼雨多,属于多夜雨,防城区昼雨多于夜雨;季节分布上看,3个站春、秋、冬季夜雨多于昼雨;昼夜雨量变化随年代呈现波动型趋势。

Through statistics and analysis on rainfall data of three national weather stations in coastal region of Fangchenggang City since the stations were built,the change characteristics of day and night precipitation in the area were studied.The results showed that： in the southwestern coastal region of Fangchenggang City port area and Dongxing City,the night rain was more than day rain,and in Fangcheng District,day rain was more than night rain.On the point of view of seasons,the night rains were more than day rains of the three stations,and variation trends of both day and night were as wave-like during the statistical time range.