| 干旱半干旱区太阳辐射特征 |
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| 引用本文： | HU Bo,WANG Yue-Si,LIU Guang-Ren. 干旱半干旱区太阳辐射特征[J]. 大气和海洋科学快报, 2009, 2(3): 183-187 |
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| 作者姓名： | HU Bo WANG Yue-Si LIU Guang-Ren |
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| 作者单位： | State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry （LAPC）, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China |
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| 基金项目： | Acknowledgements. This work is supported by the National Basic Research Program of China （Grant No. 2006CB403702） and the National High Technology Research and Development Program of China （Grant No. 2006AA06A301）. The authors would like to thank the observation team for its hard work in collecting data. |
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| 摘 要： | Climatic characteristics of broadband solar radiation （Rs） in Chinese arid and semi-arid areas are reported in this study. The annual average daily Rs in the arid and semi-arid areas is 16.3 ±5.77 and 15.3 ± 5.16 MJ m^-2 d^-1, respectively. The highest value （17.2 ± 5.84 MJ m^-2 d^-1） appears in an arid area at Linze. The lowest value appears in the semi-arid area of Ansai. Pronounced seasonal variation of Rs is observed with the highest value in summer and the lowest in winter. The clearness index showed similar seasonal pattern at most sites, with the minimum observed in the summer and the highest values in winter at both arid and semi-arid areas. The seasonal variation of the ratio of Rs to its extraterrestrial value Kt in the arid area is more significant than that observed in the semi-arid region, and it is caused by the different range of variation of water vapor between arid and semi-arid areas. The seasonal fluctuations in Rs and Kt are mainly controlled by the water vapor content in these areas. The aerosol particles have significant influence on Rs and Kt at stations with higher aerosol burden.
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| 关 键 词： | 大气科学 太阳光 季节性 夏季 |
| 修稿时间： | 2009-05-09 |
Properties of Solar Radiation over Chinese Arid and Semi-Arid Areas |
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| HU Bo,WANG Yue-Si and LIU Guang-Ren. Properties of Solar Radiation over Chinese Arid and Semi-Arid Areas[J]. Atmospheric and Oceanic Science Letters, 2009, 2(3): 183-187 |
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| Authors: | HU Bo WANG Yue-Si LIU Guang-Ren |
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| Affiliation: | LAPC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LAPC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LAPC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | Climatic characteristics of broadband solar radiation (Rs) in Chinese arid and semi-arid areas are reported in this study. The annual average daily Rs in the arid and semi-arid areas is 16.3 ± 5.77 and 15.3 ± 5.16 MJ m2 d1, respectively. The highest value (17.2± 5.84 MJ m2 d1) appears in an arid area at Linze. The lowest value appears in the semi-arid area of Ansai. Pronounced seasonal variation of Rs is observed with the highest value in summer and the lowest in winter. The clearness index showed similar seasonal pattern at most sites, with the minimum observed in the summer and the highest values in winter at both arid and semi-arid areas. The seasonal variation of the ratio of Rs to its extraterrestrial value Kt in the arid area is more significant than that observed in the semi-arid region, and it is caused by the different range of variation of water vapor between arid and semi-arid areas. The seasonal fluctuations in Rs and Kt are mainly controlled by the water vapor content in these areas. The aerosol particles have significant influence on Rs and Kt at stations with higher aerosol burden. |
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| Keywords: | arid and semi-arid areas broadband solar radiation spatial distribution clearness index |
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