气象与环境学报2012，Vol.28Issue(2)：77-80,4.
阿勒泰地区气温日较差的气候变化特征
Climatic characters of diurnal temperature range in Altay region
摘要
Abstract
The variation trend of the diurnal temperature range（DTR） and its impacting factors were analyzed using methods of a liner trend and a statistic correlation analysis based on temperature data at 7 weather stations from 1961 to 2008 in Altay region.The results indicated that the seasonal DTR is in a significant decreasing trend,especially in winter.Variation of autumn DTR is small.The increasing trends of seasonal minimum temperature are the most significant,while those of seasonal maximum temperature are not significant.The monthly mean DTR has significantly positive correlation with sunshine duration,while it has negative correlation with total cloud cover,precipitation and vapor pressure.Annual DTR has significant correlation with precipitation and vapor pressure.关键词
气温日较差/趋势检验/影响因子Key words
Diurnal temperature range(DTR)/Trend test/Impacting factor分类
天文与地球科学引用本文复制引用
白松竹,李焕,田忠峰..阿勒泰地区气温日较差的气候变化特征[J].气象与环境学报,2012,28(2):77-80,4.基金项目
新疆维吾尔自治区气象局青年基金项目（201228）资助 （）
