三峡大学学报（自然科学版）2011，Vol.33Issue(5)：26-30,5.
宜昌市近59年来的气候变化趋势分析
Analysis of Climate Change Tendency in Yichang City in Recent 59 Years
摘要
Abstract
Based on the daily meteorological data of Yichang City from September 1951 to August 2010, the variation characteristics of annual temperature and rainfall sequences were statistically analyzed with climate tendency coefficient, 5a moving average analysis, accumulated variance analysis and simple linear regression method. The results show that the annual mean temperature of Yichang City appears a rising trend, the rising rate of annual mean minimum temperature is higher than maximum temperature rising rate, which resulted in downward trend of the average diurnal range of temperature. On the seasonal changes, the average temperature has a positive trend in most seasons, especially in spring, except for a slight decrease in summer. The annual precipitation trend shows a slight increase; in winter the increasing trend is more significant. Overall, this research has an important significance with further research and prediction of climate change in Yichang City.关键词
气候变化/变化趋势/气温/降雨Key words
climate change/ variation trend/temperature/precipitation分类
天文与地球科学引用本文复制引用
过寒超,秦琳琳,牛凤霞,向薇..宜昌市近59年来的气候变化趋势分析[J].三峡大学学报（自然科学版）,2011,33(5):26-30,5.基金项目
国家水体污染控制与治理科技重大专项(2009ZX07104-001) （2009ZX07104-001）
国家水体污染控制与治理科技重大专项子课题(2008ZX07104-004) （2008ZX07104-004）
湖北省环保专项(2008hb08) （2008hb08）
