摘要
建立了起伏地形下太阳直接辐射分布式计算模型 ;成功地解决了起伏地形中地形相互遮蔽对太阳直接辐射影响的难题 ;采用数据集群技术 ,探讨了不同数据集情况下太阳直接辐射计算模式的时空有效性 ;以 1km× 1km分辨率的DEM数据作为地形的综合反映 ,完成了我国 1km×
Distributed model for calculating direct solar radiation (DSR) over rugged terrains was developed. The difficult problem of terrain inter-shielding effects has been solved successfully in the model. Based on data integration technique, DSR models for different temporal and spatial scale were established and the accuracy of different models was analyzed thoroughly. Using the selected model, map of direct solar radiation normals with resolution of 1 km 1 km for China are generated, with DEM data as the general characterization of terrain. The DSR 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.
出处
《现代测绘》
2004年第5期15-17,20,共4页
Modern Surveying and Mapping
基金
国家重点基础研究发展规划项目 (批准号 :G19990 43 6 0 1
G2 0 0 0 0 779)
