| 南京地区近40年来太阳辐射变化 |
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| 引用本文： | 张运林,秦伯强,陈伟民.南京地区近40年来太阳辐射变化[J].地理学报(英文版),2003,13(1):97-104. |
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| 作者姓名： | 张运林 秦伯强 陈伟民 |
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| 作者单位： | NanjingInstituteofGeographyandLimmology,CAS,Nanjing210008,China |
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| 基金项目： | The Innovation Project of CAS, No.KZCX2-31 |
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| 摘 要： | The data utilized in this analysis consisted of extraterrestrial radiation,global radiation,diffuse radiation,total cloud cover and relative sunshine.The annual variations and trend were analyzed for monthly mean daily total global,direct,and diffuse radiation on a horizontal surface and for the relations between global,direct,diffuse radiation and relative sunshine,total cloud cover.The climatlolgical calculation equations of global and direct radiation are put forward.The results show that global and direct radiations are characterized by decrease and diffuse radiation by increase.The main causes are due to the increase of concentration of suspended particles and atmospheric turbidities rather than cloud cover variations.
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| 关 键 词： | 太阳辐射 南京地区 大气浑浊度 直接辐射 散射 总云量 地球辐射 |
| 收稿时间： | 16 July 2002 |
Analysis of solar radiation variations over Nanjing region in recent 40 years |
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| ZHANG Yunlin,QIN Boqiang,CHEN Weimin.Analysis of solar radiation variations over Nanjing region in recent 40 years[J].Journal of Geographical Sciences,2003,13(1):97-104. |
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| Authors: | ZHANG Yunlin QIN Boqiang CHEN Weimin |
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| Institution: | Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, China |
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| Abstract: | The data utilized in this analysis consisted of extraterrestrial radiation, global radiation, d iffuse radiation, direct radiation, total cloud cover and relative suns hine. The annual variations and trend were analyzed for monthly mean daily total global, direct, and diffuse radiation on a horizontal surface and for the relations between global, direct, diffuse radiation and relative sunshine, tota l cloud cover. The climatological calculation equations of global and d irect radiation are put forward. The results show that global and dir ect radiations are characterized by decrease and diffuse radiation by increase. The main causes are due to the increase of concentration of suspended particles and atmospheric turbidities rather than cloud cover var iations. |
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| Keywords: | Nanjing region global radiation direct radiation diffuse ra diation relative sunshine |
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