石家庄市气温变化规律及影响因子分析

利用石家庄市1955—2016年逐月平均气温、降水量和环流特征量资料,采用回归分析、相关分析等方法,分析了近62年来石家庄市气温的年变化和季节变化规律,以及影响气温变化的环流因子。结果表明,自1955年以来石家庄市年、季平均气温均呈上升的趋势,但近年来上升趋势有所减缓;大多数月份平均气温的变化存在持续性,同期的气温与降水间呈反相关关系,并且与同期环流指数、极涡和副热带高压类环流指数关系密切。

Analysis of Temperature Variation and Influencing Factors in Shijiazhuang City

Using the monthly average temperature,precipitation and circulation characteristics of Shijiazhuang City from 1955 to 2016,the annual and seasonal variations of temperature in Shijiazhuang City in the past 62 years were analyzed,and the circulation factors affecting the temperature change by regression analysis and correlation analysis.The results showed that the average annual and seasonal temperature of Shijiazhuang City had risen since 1955,but the upward trend had slowed down in recent years.Most of the monthly average temperature changes persisted,with the temperature and precipitation in the same period being inversely correlated,and closely related to the circulation index,polar vortex and subtropical high circulation index in the same period.