广州日总太阳辐射估算

利用广州十年内（1995—2004）的气象数据，进行了逐步回归分析，得出估算日总太阳辐射的模型。并通过平均百分误差、平均偏差和均方根误差对各模型的精确性进行了对比，选择出最优模型。最后用实测的日总太阳辐射数据对选出的最优模型进行验证，结果表明，当日总太阳辐射值较大时，模型估算值与实测数据吻合得很好。

Correlations to Estimate Daily Global Solar Radiation for Guangzhou

With the meteorological data and measured solar radiation in ten years （ 1995 -2004） at Guan- gzhou, China, a step - by - step regression procedure is conducted to develop correlations to estimate the glob- al radiation on horizontal surfaces at Guangzhou, China. Estimated values were compared with measured val- ues in terms of statistical error tests such as mean percentage error （MPE）, mean bias error （MBE）, root mean square error （RMSE）. The model performing best was selected. The global solar radiation estimated from the best model was compared with measured values. It was determined that the predicted values have good agreement with the measured values at high daily global solar radiation values.