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当前位置: 首页 > 文章 > 山东济阳近55年日照时数变化特征分析 农业灾害研究 2018 (6) 21-22+100
Position: Home > Articles > Analysis on the Variation Characteristics of sunshine hours in Jiyang in recent 55 years Journal of Agricultural Catastrophology 2018 (6) 21-22+100

山东济阳近55年日照时数变化特征分析

作  者：
王华;赵玉翠;张有菊;刘新彦;王光辉
单  位：
山东省济阳县气象局
关键词：
济阳;日照时数;变化特征;气候倾向率
摘  要：
利用济阳国家气象观测站1963—2017年日照时数资料,采用最小二乘法、累积距平法统计分析了济阳年、季、月日照时数变化特征,找出其主要变化规律。结果表明:近55年济阳日照时数呈减少趋势,以11.506 h/年的速率递减。日照时数年际变化幅度较大,峰值点与谷值点相差880.1 h;年际变化存在季节性差异,夏、秋、冬季变化较为明显,春季变化比较平缓;各月日照时数除4月外均呈减少趋势,其中6月减少最为明显,递减率为1.671 9 h/年。近55年日照时数平均5月最多,6月次之,12月份最少。
译  名：
Analysis on the Variation Characteristics of sunshine hours in Jiyang in recent 55 years
作  者：
WANG Hua;Jiyang County Meteorological Bureau;
单  位：
WANG Hua%Jiyang County Meteorological Bureau
关键词：
Jiyang;;Sunshine hours;;Variation characteristics;;Climate inclination rate
摘  要：
Based on the sunshine hours data of Jiyang National Meteorological Observatory from 1963 to 2017, the characteristics of annual, seasonal and monthly sunshine hours in Jiyang were analyzed by least squares method and cumulative anomaly method, and the main variation rules were found out. The results showed that, the sunshine hours in Jiyang has been decreasing at 11.506h/a in recent 55 years. The annual variation range of sunshine hours was large,and the difference between peak and valley value was 880.1 h. There were seasonal differences in annual variation of sunshine hours, the summer, autumn and winter changes were more obvious,and spring change was more gentle. The monthly sunshine hours showed a decreasing trend except April, of which June was the most obvious with the decline rate of 1.671 9 h/a. The average sunshine hours in recent 55 years were the most in May, followed by June and at least in December.

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