干旱区研究2012，Vol.29Issue(3)：487-494,8.
新疆阿勒泰地区降水变化特征分析
Analysis on Precipitation in Altay Prefecture, Xinjiang
摘要
Abstract
This paper focused on precipitation in Altay Prefecture, Xinjiang based on the monthly precipitation data during the period from 1961 to 2009 and from January to March 2010, and the Mann-Kendall trend test, cubic function, Mann-Kendall sharp change check, R/S analysis and Morlet wavelet transformation analysis were used in the study. The results are as follows： （1） Annual and winter precipitation was significantly increased, and the change of precipitation in other seasons was not obvious ; precipitation was quite different from different regions ; the linear trend of precipitation was consistent with the Mann-Kendall trend change; （2） The fitting results of cubic function revealed that the annual, spring and winter precipitation was monotonously increased, and such change occurled from the 1960s; summer precipitation was increased at first, then decreased, increased and decreased again; the variation of autumn precipitation was not significant, and the spatiotemporal distribution of precipitation was quite different from different regions; （3） Annual and summer precipitation was sharply increased around 1983 and 1987 respectively, the sharp change of spring and autumn precipitation was not significant, and there was no sharp change of winter precipitation ; the sharp change time of precipitation was inconsistent ; （4） There was a significant periodic change of annual and seasonal precipitation at inter-decadal and inter-annual scales; （5） There was an anticontinuance of precipitation.关键词
降水量/Mann-Kendall趋势检验/Cubic函数/Mann-Kendall突变检测/R／S分析法/Morlet小波变换/时空分布Key words
precipitation/Mann-Kendall trend test/cubic function/Mann-kendall sharp change check/R/S a-nalysis/Morlet wavelet transformation/spatiotemporal distribution分类
天文与地球科学引用本文复制引用
庄晓翠,杨森,赵正波..新疆阿勒泰地区降水变化特征分析[J].干旱区研究,2012,29(3):487-494,8.基金项目
新疆气象局项目“阿勒泰地区气候变化与干旱研究” （）
公益性行业（气象）科研专项“新疆北部致灾暴雪成因分析和预报技术研究（GYHY201106007）. （）
