Quality control and estimation of global solar radiation in China
| 作者: |
Tang, W.J., et al. |
| 期刊名称: |
Solar Energy |
| 发表年度: |
2010 |
| 卷: |
84 |
| 期: |
3 |
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| 页码: |
466-475 |
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| 全文链接: |
http://dx.doi.org/10.1016/j.solener.2010.01.006 |
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| 摘要: |
Measurements of surface radiation in China are too sparse to meet demand for scientific research and engineering applications. Moreover, the radiation data often include erroneous and questionable values though preliminary quality-check has been done before the data release. Therefore, quality control of radiation data is often a prerequisite for using these data. In this study, a set of quality-check procedures were implemented to control the quality of the solar radiation measurements at 97 stations in China. A hybrid model for estimating global solar radiation was then evaluated against the controlled data. The results show that the model can estimate the global radiation with accuracy of MBE less than 1.5 MJ m(-2) and RMSE less than 2.8 MJ m(-2) for daily radiation and RMSE less than 2.0 MJ m(-2) for monthly-mean daily radiation at individual stations over most of China except at a few stations where unsatisfactory estimates were possibly caused by severe air pollution or too dense clouds. The MBE averaged over all stations are about 0.7 MJ m(-2) and RMSE about 2.0 MJ m(-2) for daily radiation and RMSE about 1.3 MJ m(-2) for monthly-mean daily radiation. Finally, this model was used to fill data gaps and to expand solar radiation data set using routine meteorological station data in China. This data set would substantially contribute to some radiation-related scientific studies and engineering applications in China. (C) 2010 Elsevier Ltd. All rights reserved.
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