河南省旬日照时数的标度不变性分析  

Scale invariance analysis of the ten-day sunshine duration in Henan Province,China

作　　者：王纪军[1] 潘攀[1] 胡彩虹[2] 李凤秀[1] 

机构地区：[1]河南省气候中心,郑州450003 [2]郑州大学水利与环境学院,郑州450001

出　　处：《应用生态学报》2015年第2期521-526,共6页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金项目(51079131);中国气象局气候变化专项(CCSF-201312)资助

摘　　要：利用河南省107个气象观测站1961—2012年逐旬日照时数资料,分析河南省旬日照时数的时空变化特征,并利用去趋势波动分析方法探讨了河南省旬日照时数的标度不变性.结果表明:研究期间,河南省逐旬日照时数及其站间均方差的平均值分别为57.90和9.18h,其概率分布均不服从正态分布.河南省逐旬日照时数累积离差具有显著上升趋势,而逐旬日照时数站间均方差的累积离差具有阶段性变化特征,在阶段内均具有显著的线性变化趋势.河南省逐站旬日照时数的标度指数均在0.5以上,表明时间序列具有持久性.河南省旬日照时数标度指数空间变异性较小,具有正态分布的特征.Using the ten-day sunshine duration data of 107 meteorological stations in Henan Province from 1961 to 2012, spatial-temporal variation characteristics of ten-day sunshine duration were analyzed, and the scale invariance analysis of ten-day sunshine duration was studied by using the method of detrended fluctuation analysis. The results showed that the means of ten-day sunshine duration and its standardized error among stations were 57.90 and 9.18 h, respectively, and their probability distributions were not subject to normal distribution. The cumulative abnormal of sun- shine duration had a distinct linear increasing trend, however, its square deviation among the sta- tions was of phase characteristics. The scale index of ten-day sunshine of each station was above 0.5, indicated that time series of scale index was of permanence. Variation of scale index among sta- tions was small, which obeyed the normal distribution.

关 键 词：去趋势波动分析 旬日照时数 河南省 

分 类 号：P422.11[天文地球—大气科学及气象学]