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中文摘要：
探讨了内蒙古地区太阳总辐射月均值与日照百分率的关系，基于5个气象站1996—1998年连续3a的月日照时数（n）和太阳总辐射值（月。）。计算得到Angstrom方程的系数n和b，与和清华等拟合得到的中国西部太阳总辐射公式中的a=0．185，b=O．595，比较一致。同时，R0和n之间的直接线性关系，R0与月平均温度（丁）之间的直接线性关系也能用来估算太阳总辐射月均值，总均方根误差约为80MJ·m-2／month，总百分比误差约为18％。
英文摘要：
In this paper, the relationship between the monthly average global solar radiation and the percentage of sunshine in Inner Mongolia is discussed based on the measured sunshine duration （n） data and global solar radiation （Rs） data of the five meteorological stations from 1996 to 1998. The calculated coefficients a and b of the Angstrom equation are close to the results for Western China, namely a--0.185 and b=0.595. Meanwhile, the linear relationships between Rs and n and between Rs and the monthly average temperature （T） can also he used to estimate the global solar radiation with the overall RMSE equal to about 80 MJ·m-E/month and the overall MAPE value equal to about 18%.
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