THE UNITED EMPIRIC FORMULA OF MONTHLY GLOBAL INSOLATION ON HORIZONTAL SURFACES IN YUNNAN PROVINCE
Lin Wenxian(Solar Energy Research Instiute,Yunnan Normal University)
Having the aid of a linear regression method and yunnan province’s climatic charac-teristics devided into dry and wet seasons,this article obtains the united empiric formula of monthlygobal insolation on horizontal surfaces that are appliable for areas all over the yunnan province byytilizing the measured values of monthly global insolation on hoizontal sarface in 7 stations inyunnan prorince. The formula follow: (Wet season:May～Oct.)They also calculated global insolation of 127 stations in yunnan province and drew a regional distri-bution map of soar global insolation.