摘要
利用1981—2015年廊坊市9个气象观测站点35年间的日照时数和日降水量资料,依据连阴雨(雪)定义,筛选廊坊市各个站点连阴雨(雪)过程,进行统计、对比分析。结果表明:连阴雨(雪)天气全年均会发生,集中出现在5~9月,过程一般以3~4天为主,发生次数有逐年增长的趋势,年际变化明显,3~5年会出现次数峰值;统计表明单站连阴雨发生次数最多,与廊坊市辖区成南北条状分布有一定关系,且呈明显的北部少,南部多分布特点。
Based on the Sunshine hours and daily precipitation recorded by 9 meteorological observation sites in Langfang from 1981 to 2015,according to the definition of continuous rain（ snow）,we screened the continuous rain（ snow） processes for our statistical and contrastive analysis. The result shows that the weather of continuous rain（ snow） occurs throughout the year,mostly with a duration of three or four days,mainly falling on the period from May to September,and demonstrating a trend of annual increase. As to the inter-annual variation,which is notable,a peak of frequency of continuous rain（ snow） process exists every three to five years. The statistic result shows that the frequency of continuous rain（ snow） at a single site is the highest,which may be partly attributed to the spatial strip distribution from north to south of Langfang City. Moreover,more continuous rain（ snow） processes at a single site are observed in the south of Langfang than in the north.
作者
王梦
Wang Meng(Langfang Meteorological Bureau,Langfang 065000,Chin)
出处
《防灾科技学院学报》
2018年第2期78-84,共7页
Journal of Institute of Disaster Prevention
关键词
连阴雨(雪)
季节分布特征
空间分布特征
廊坊
continuous rains（snow）
seasonal distribution
spatial distribution
Langfang
