| 基于DEM的坡地太阳总辐射估算 |
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| 引用本文： | 李净,李新.基于DEM的坡地太阳总辐射估算[J].太阳能学报,2007,28(8):905-911. |
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| 作者姓名： | 李净 李新 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所,兰州,730000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);中国科学院知识创新工程项目 |
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| 摘 要： | 借鉴国内外计算坡地太阳辐射的方法,利用数字高程模型(DEM)生成了计算山地太阳辐射的地形因子(坡度、坡向、遮蔽度、各向同性可见因子),比现有的模型更准确地计算了晴空下山地太阳总辐射、直接辐射、散射辐射和周围地形的反射辐射,在此基础上分析了坡度、坡向对太阳辐射的影响。
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| 关 键 词： | 坡度 坡向 遮蔽度 各向同性可见因子 直接辐射 散射辐射 周围地形的反射辐射 |
| 文章编号： | 0254-0096（2007）08-0905-07 |
| 修稿时间： | 2006-05-12 |
ESTIMATING SOLAR RADIATION ON SLOPE USING DEM |
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| Li Jing,Li Xin.ESTIMATING SOLAR RADIATION ON SLOPE USING DEM[J].Acta Energiae Solaris Sinica,2007,28(8):905-911. |
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| Authors: | Li Jing Li Xin |
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| Affiliation: | Cold and Arid Regions Environmental and Enginnering Research Institute, CAS, Lanzhou 730000, China |
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| Abstract: | The terrain factors (slope grade,slope aspect,shade,isotropic sky view factor) were calculated using the domestic and overseas estimating methods of solar radiation and digital elevation model (DEM) so that the more precise model than existing eodels was derived. The total solar radiation,direct solar radiation,diffuse radiation,adjacent terrain radiation were calculated using this model. Based on this computation, the effects of slope grade,slope aspect on solar radiation on slope were analyzed. The results are consistent with the Fu Baopu's results,so it is proven that the method is feasible. |
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| Keywords: | DEM |
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