摘要
运用R/S法分析了1953-2006年石羊河流域降水和气温季节值以及年平均值.各站各项指标的Hurst指数均大于0.5,说明它们存在明显Hurst现象,反映出石羊河流域过去53年来气候变化存在趋势性成分.结果表明石羊河流域未来气温和降水具有长程相关性.
The trend of climate changes in Shiyang river basin was studied by using the R/S analysis method and temperature and precipitation data gathered at three weather stations in the recent 50 years （1953-2006） were analyzed. Calculations proved that the Hurst exponents of all elements are beyond 0.5, which indicates that all elements have evident Hurst phenomena. The results showed that temperature and precipitation have an increasing trend in Shiyang river basin in future.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第4期42-45,57,共5页
Journal of Lanzhou University(Natural Sciences)
基金
国家自然科学基金项目(50879033)
国家基础科学人才培养基金项目(J0730536)
兰州大学中央高校基本科研业务费专项基金项目(lzujbky-2009-66)
