摘要
利用贵州省仅有的3个辐射观测站资料,比较了用日照百分率拟合与全国通用公式两种方法计算的总辐射的误差,结果表明：用日照百分率的计算方法,其月值和年值的平均相对误差的绝对值都小于10%,其效果明显优于用全国通用公式。在贵州省,太阳总辐射是随着海拔高度的增加而增加,故选择日照百分率按照海拔高度来分别拟合月总辐射的方法,利用1971-2000年的有关资料,计算了贵州省各地的总辐射,并分析了其空间分布特征。
By using the observation data from only three solar radiation stations in Guizhou Province, comparison is made between the calculation errors from two methods （sunlight percentage and nationwide universal formula）. The results indicate that the absolute error values of the monthly and annual mean solar radiation calculated by the sunlight percentage method are less then 10%, and the sunlight percentage model is better than the universal method obviously. Since solar radiation increases with increasing altitude, the model is set up according to the altitude of each station by means of the sunlight percentage method. From the related data from 1971 to 2000, the solar radiation is calculated, and the distributional characteristic are analyzed.
出处
《气象科技》
2008年第1期91-94,共4页
Meteorological Science and Technology
关键词
贵州
太阳总辐射
分布特征
计算误差
Guizhou, solar global radiation, distributional characteristic, calculation error
