摘要
根据承德市1956~2014年同期降水量系列资料,通过对单站降水量、分区降水量计算,分析承德市降水量空间分布与降水量年内分配及特征。结果表明,承德市降水总体趋势自北向南逐渐增加,降水量年内分配主要集中在汛期,1956~1979年降水量与59年系列相比,说明24年系列偏大;1980年~2014年降水量与59年降水量系列相比,说明35年系列偏小。利用时空分布与特征变化的分析成果,对今后该地区降水异常等极端天气变化具有重大指导意义。
According to the precipitation data of Chengde City from 1956 to 2014, the spatial distri- bution of precipitation and the distribution and characteristics of precipitation in Chengde City were analyzed by calculating the precipitation and precipitation of single station. The results show that the overall trend of precipitation in Chengde City is increasing from north to south, and the distribution of precipitation is mainly concentrated in the flood season during the year. Compared with the 59 se- ries, the precipitation in 1956 -1979 shows that the series is too large in the 24th year, Compared with the 59 series of precipitation, it is shown that the 35 - year series is too small to use the analy- sis of temporal and spatial distribution and characteristic change, which is of great significance to the extreme weather changes in the future.
作者
赵明钰
ZHAO Ming - yu(Hebei Chengde Hydrology and Water Resources Survey,Chengde 067000, Hebei, Chin)
出处
《水利科技与经济》
2018年第1期65-68,71,共5页
Water Conservancy Science and Technology and Economy
关键词
降水量
时空分布
变化分析
承德市
precipitation
time - space distribution
change analysis
Chengde City
