沙漠与绿洲气象Issue(6)：1-7,7.DOI:10.3969/j.issn.1002-0799.2013.06.001
中国天山区域云量的变化及其与降水的关系
The Change of Cloud Coverage in Tianshan Mountain in China and Its Relation with Precipitation
摘要
Abstract
Based on daily cloud coverage data at 24 stations in Tianshan Mountain area from 1961 to 2008, the spatial and temporal variation features of cloud coverage in Tianshan Mountain area were analyzed by the statistical methods, such as correlation and Mann-Kendall Test. The results showed:(1)the total cloud coverage in Yili valley and to its north was the most, but the low cloud coverage was the most in some areas of middle and eastern Tianshan mountains and the ratio between low cloud coverage and total cloud coverage was the most in summer;(2)the regional average total cloud coverage presented decreasing trend in spring and autumn, and the low cloud coverage for four seasons all presented increasing trends, especially in winter and summer;(3)the decadal variation of the total cloud coverage was not obvious, and it had been in high value period since 1990;(4)the climate jump of the low cloud coverage had occurred in spring, summer and autumn in 1990s, and in winter around 2000;(5)both of total cloud coverage and low cloud coverage had a good correlation with precipitation, especially the low cloud coverage in spring with summer precipitation and the correlation coefficient was 0.54.关键词
总云量/低云量/降水/天山区域/气候变化Key words
total cloud cover/low cloud cover/precipitation/Tianshan mountain/climate change分类
天文与地球科学引用本文复制引用
赵勇,崔彩霞,贾丽红,何冬燕..中国天山区域云量的变化及其与降水的关系[J].沙漠与绿洲气象,2013,(6):1-7,7.基金项目
国家科技支撑计划项目（2012BAC23B01）资助。 （）
