宁夏太阳辐射资源时空变化规律研究  

A STUDY OF THE TIME-SPATIAL VARIATION OFSOLAR RADIATION RESOURCES IN NINGXIA

作　　者：彭乃志[1] 陈玉山 

机构地区：[1]南京大学大气科学系,宁夏气象科学研究所

出　　处：《自然资源》1994年第3期47-54,共8页

摘　　要：本文用功率谱方法和最小二乘法研究了宁夏太阳辐射资源的时空变化规律。研究结果表明，太阳辐射资源在空间变化上呈现出明显的地域分异规律，日照时数、日照百分率及太阳辐射总量在地区分布上呈现出明显的南少北多、南小北大的地域分异规律；大阳辐射资源呈现出明显的时间变化规律，年内变化是夏半年多、冬半年少，年际变化普遍存在着准周期性，多年变化存在着准３年变化周期以及１０－１２年变化周期等。y using the methods of power spectrum and mathematical statistics, the time-spatial variation of solar radiation resource of Ningxia has been studied inthis paper. The results indicate that apparent areal differentiation laws of solarradiation tesource of Ningxia in time-spatial variation have been observed, e. g.,much more and higher sunshine hours, percentage of sunshine and total solar radiation are found in northern part than in southern part in spatial distribution.Apparent temporal variation laws of solar radiation resource occur, e. g., in terms of intra-annual variation, it is sufficient in tab half year of summer but deficient in the half year of winter; in inter-annual case, quasi-periodic variationexists generally whereas for secular variation, a ten-to-twelve-year period occursfollowing a quasi-three-year variation.

关 键 词：功率谱 最小二乘法 太阳辐射 资源 宁夏 

分 类 号：P422.1[天文地球—大气科学及气象学]