干旱区研究2012，Vol.29Issue(1)：27-34,8.
西安市气温和降水变化趋势分析
Analysis on the Change Trend of Temperature and Precipitation in Xi＇an during the Period of 1961-2009
摘要
Abstract
Based on the average annual and monthly temperature and precipitation data observed in Xi＇an during the period from 1961 to 2009,in this paper climate change in Xi＇an in recent 49 years was analyzed.The conclusions are as follows： annual temperature was increased with an increase rate of 0.3 ℃/10 a;the change of seasonal temperature was different： the seasonal temperature was increased with increase rates of 0.54 ℃/10 a,0.42 ℃/10 a and 0.23 ℃/10 a in spring,winter and autumn respectively.Monthly temperature in January was also increased with an increase rate of 0.23 ℃/10 a,and that in July was significantly increased since the 1980s.Annual precipitation was in a decrease trend;seasonal precipitation was significantly decreased in spring and autumn,it was decreased with a decrease rate of 14.8 mm/10 a in spring,but it was significantly increased with an increase rate of 21.8 mm/10 a in summer,and it was slightly increased in winter;precipitation in flood season was also increased significantly in the 1980s and during the period from 2001 to 2009.There was a good correlation between seasonal temperature and precipitation in spring,summer and autumn,but the correlations between annual temperature and precipitation and between seasonal temperature and precipitation in winter were not significant.关键词
气温/降水/气候变化/变化趋势/西安Key words
air temperature/precipitation/climate change/change trend/Xi＇an分类
天文与地球科学引用本文复制引用
周正朝,胡娜娜,周华..西安市气温和降水变化趋势分析[J].干旱区研究,2012,29(1):27-34,8.基金项目
国家自然科学基金青年基金项目 （）
陕西省自然科学基金 （）
