| 起伏地形下我国太阳直接辐射的分布式模拟 |
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| 引用本文： | 王潇宇,邱新法,曾燕.起伏地形下我国太阳直接辐射的分布式模拟[J].南京气象学院学报,2005,28(3):i002-i005. |
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| 作者姓名： | 王潇宇 邱新法 曾燕 |
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| 作者单位： | 1. 南京信息工程大学,空间信息科学系,江苏,南京,210044
2. 江苏省气象局,江苏,南京,210009 |
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| 基金项目： | 国家重点基础研究发展规划项目(G19990436-01)，国家重点基础研究发展规划项目(G20000779) |
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| 摘 要： | 运用数据集群技术,建立了我国不同时空尺度直接透射率的估算模式,对比分析了不同模式的拟合精度。基于1km×1km分辨率的数字高程模型(DEM)数据,全面考虑了地形因子对太阳直接辐射的影响,实现了实际起伏地形下我国太阳直接辐射的分布式模拟,计算了我国范围内1km×1km分辨率1—12月气候平均太阳直接辐射的空间分布。结果表明:局地地形对太阳直接辐射空间分布的影响非常强烈,尤其是在太阳高度角较低的冬季和秋季;模拟结果可靠,可进行大数据量处理,适用于遥感图像处理、地理信息系统等数据处理平台。
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| 关 键 词： | 起伏地形 太阳直接辐射 数据集群技术 DEM 分布式模拟 |
| 文章编号： | 1000-2022(2005)03-0296-06 |
Distributed Modeling of Direct Solar Radiation over the Rugged Terrains of China |
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| WANG Xiao-yu,QIU Xin-fa,ZENG Yan.Distributed Modeling of Direct Solar Radiation over the Rugged Terrains of China[J].Journal of Nanjing Institute of Meteorology,2005,28(3):i002-i005. |
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| Authors: | WANG Xiao-yu QIU Xin-fa ZENG Yan |
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| Institution: | WANG Xiao-yu~1,QIU Xin-fa~1,ZENG Yan~2 |
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| Abstract: | Based on data integration technique,direct transmittance models for different temporal and spatial scales were established and the accuracy of different models was analyzed thoroughly.Using the DEM(digital elevation model) data of 1km1km resolution as input and giving an all-sided consideration on factors influencing direct solar radiation(DSR),a distributed model for calculating DSR over rugged terrains was developed,and monthly DSR with the resolution of 1km (1km) over the rugged terrains of China was generated.Results suggest that(1)the topographical factors have robust effect on the spatial distribution of DSR,particularly in winter and autumn when the sun elevation angle is lower;(2)the proposed model is proved to be able to treat volumes of data and is applicable to satellite image processing platform or GIS. |
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| Keywords: | rugged terrains direct solar radiation data integration technique DEM distributed modeling |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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