农学学报Issue(6)：82-87,6.
天水市日照时数的气候变化特征
Climatic Variability of Sunshine Hours Change in Tianshui
摘要
Abstract
Based on the hour’s data of meteorological stations from 1965-2011, the characteristics of sunshine hours change in Tianshui City had been studied with the methods of accumulative anomalies, Mann-kendall test and wavelet analysis. The result indicated that, the annual average sunshine hours showed a trend of decrease in Tianshui, The annual average sunshine hours increased during 1965-1980 and 1993-2008, and it showed a trend of reduce in, and tends to decrease since 2009. The greatest amplitude season was summer, spring sunshine hours change is on the rise, the rest of the season was on the decline. The wavelet analysis results showed that throughout the year and each season of sunshine hours most had the small scale of quasi cycles in Tianshui, winter there were mesoscale cycles, summer on the interdecadal changes exist quasi cycle changes in 27 years. Spatial distribution of the change rate showed that the trend was general but not universal;the change tendency was more significant in the north of Tianshui.关键词
日照时数/时空分布特征/累积距平/Mann-Kendall/小波分析/天水Key words
Sunshine Hours/Climate Change/Accumulative Animalies/Mann- kendall Test/Wavelet Analysis/Tianshui分类
农业科技引用本文复制引用
强玉柱,姚延锋,朱恩超,谢蕊..天水市日照时数的气候变化特征[J].农学学报,2015,(6):82-87,6.基金项目
甘肃省强对流天气预报预警系统建设项目；公益性行业(气象)科研专项(GYHY201306006) （气象）
