2016年淮北市降水空间差异分析

Analysis on Spatial Difference of Precipitation in Huaibei City in 2016

利用统计学方法,分析了2016年淮北市37个加密自动站降水的空间差异。结果表明,2016年淮北市37个加密自动站降水属正态分布,平均降水量825.1 mm,雨日116.9 d。降水量、降水强度全年和四季南北差异显著,雨日全年和春、秋、冬季南北差异显著,大运河沿线、市区分别为雨量、雨日低值区;降水强度市区高,大运河沿线低。降水多为局部或大部地区,覆盖率与降水量、持续天数和过程雨日三者的自然对数呈直线正相关。

The spatial difference of precipitation in 37 automatic stations of Huaibei City in 2016 was analyzed by the statistical method.The results showed that the precipitation of 37 automatic stations in Huaibei City was normal distribution in 2016, with the average precipitation of 825.1 mm and the precipitation days of 116.9.The difference of precipitation and precipitation intensity between north and south were significant in the whole year and four seasons,and the difference of precipitation days between north and south was significant in the whole year,spring, autumn and winter.The large area along the Grand Canal and urban areas were the low value area of the precipitation and precipitation days,respectively.Precipitation intensity was high in the urban area, and low in the area along the Grand Canal.Precipitation was mostly local or most of the region.There was a positive correlation between the coverage rate and the natural logarithm of precipitation, duration days and process precipitation days.