Quality control and estimation of global solar radiation in China
Quality control and estimation of global solar radiation in China
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DOI：
10.1016/j.solener.2010.01.006
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发表时间：
2010-03
期刊：
影响因子：
6.7
通讯作者：
Wenjun Tang;Kun Yang;Jie He;J. Qin
中科院分区：
文献类型：
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作者：
Wenjun Tang;Kun Yang;Jie He;J. Qin
我国地表辐射测量数据稀疏，无法满足科学研究和工程应用的需求。此外，尽管在数据发布之前已经进行了初步质量检查，但辐射数据经常包含错误和可疑的值。因此，辐射数据的质量控制往往是使用这些数据的先决条件。在这项研究中，实施了一套质量检查程序来控制中国 97 个站的太阳辐射测量的质量。然后根据受控数据评估用于估计全球太阳辐射的混合模型。结果表明，除少数站点可能因空气污染严重或云层过密导致估算结果不理想外，该模型对全国大部分地区个别站点日辐射MBE精度小于1.5MJm−2、RMSE小于2.8MJm−2、月平均日辐射RMSE小于2.0MJm−2的全球辐射精度进行了估算。所有站的日辐射平均 MBE 约为 0.7MJm−2，RMSE 约为 2.0MJm−2，月平均日辐射 RMSE 约为 1.3MJm−2。最后，利用该模型填补了数据空白，并利用中国常规气象站数据扩展了太阳辐射数据集。该数据集将对中国一些与辐射相关的科学研究和工程应用做出重大贡献。
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 1.5MJm−2and RMSE less than 2.8MJm−2for daily radiation and RMSE less than 2.0MJm−2for 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 0.7MJm−2and RMSE about 2.0MJm−2for daily radiation and RMSE about 1.3MJm−2for 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.