| 起伏地形下黄河流域太阳直接辐射分布式模拟 |
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| 引用本文： | 曾燕,邱新法,刘昌明,JIANG Aijun. 起伏地形下黄河流域太阳直接辐射分布式模拟[J]. 地理学报(英文版), 2005, 15(4): 439-447. DOI: 10.1007/BF02892151 |
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| 作者姓名： | 曾燕 邱新法 刘昌明 JIANG Aijun |
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| 作者单位： | 1. Jiangsu Institute of M eteorological Sciences，Nanjing 210008，China; 2. Departm ent of Geospatial Information Sciences，Nanjing University of Information Science and Technology，Nanjing 210044，China;3.Institute of Geographic Sciences and Natural Resources Research，CAS，Beijing 100101，China |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 1 Introduction Directsolarradiation (DSR)isthe key com ponentofthe globalradiation reaching the Earth.For the influence of terrain factors,calculation of DSR quantity of rugged terrain is considerably com plex (Oliphantetal.,2003). The solarradiation quan…
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| 关 键 词： | 黄河流域 太阳 辐射分布式模拟 地形条件 |
| 收稿时间： | 2005-05-19 |
| 修稿时间： | 2005-05-192005-08-12 |
Distributed modeling of direct solar radiation on rugged terrain of the Yellow River Basin |
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| Zeng Yan Ph.D.,Qiu Xinfa,Liu Changming,Jiang Aijun. Distributed modeling of direct solar radiation on rugged terrain of the Yellow River Basin[J]. Journal of Geographical Sciences, 2005, 15(4): 439-447. DOI: 10.1007/BF02892151 |
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| Authors: | Zeng Yan Ph.D. Qiu Xinfa Liu Changming Jiang Aijun |
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| Affiliation: | Jiangsu Institute of Meteorological Sciences;Jiangsu Institute of Meteorological Sciences, Nanjing 210008, China |
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| Abstract: | Due to the influences of local topographical factors and terrain inter-shielding, calculation of direct solar radiation (DSR) quantity of rugged terrain is very complex. Based on digital elevation model (DEM) data and meteorological observations, a distributed model for calculating DSR over rugged terrain is developed. This model gives an all-sided consideration on factors influencing DSR. Using the developed model, normals of annual DSR quantity with a resolution of 1 km × 1 km for the Yellow River Basin was generated, with DEM data as the general characterization of terrain. Characteristics of DSR quantity influenced by geographic and topographic factors over rugged terrain were analyzed thoroughly. Results suggest that: influenced by local topographic factors, i.e. azimuth, slope and so on, and annual DSR quantity over mountainous area has a clear spatial difference; annual DSR quantity of sunny slope (or southern slope) of mountains is obviously larger than that of shady slope (or northern slope). The calculated DSR quantity of the Yellow River Basin is provided in the same way as other kinds of spatial information and can be employed as basic geographic data for relevant studies as well. |
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| Keywords: | direct solar radiation (DSR) rugged terrain digital elevation model (DEM) distributed model Yellow River Basin |
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