| 基于DEM的山地可照时间的空间分布 |
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| 引用本文： | 李军,黄敬峰.基于DEM的山地可照时间的空间分布[J].浙江大学学报(理学版),2007,34(3):346-350. |
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| 作者姓名： | 李军 黄敬峰 |
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| 作者单位： | 1. 浙江大学,资源科学系,浙江,杭州,310029;中国气象局,乌鲁木齐沙漠气象研究所,新疆,乌鲁木齐,830002
2. 浙江大学,资源科学系,浙江,杭州,310029 |
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| 基金项目： | 科技部科技基础性工作专项（2003DEA2C010-13）;浙江省自然科学基金资助项目（30295）;浙江省科技计划项目资助（021107751）. |
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| 摘 要： | 以山区高空间分辨率的DEM数据为主要数据源，在提取纬度、坡度、坡向等相应的地形要素栅格数据的基础上，利用GIS技术对山区可照时间的空间分布进行了模拟，实现了山区可照时间空间分布规律的可视化表达，分析了山区可照时间的空间分布特征，对于山区的农业、林业和生态环境等方面的研究具有重要意义．
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| 关 键 词： | 山区 可照时间 数字高程模型 空间分布 |
| 文章编号： | 1008-9497(2007)03-346-05 |
| 修稿时间： | 2005-11-07 |
Spatial distribution of duration of possible sunshine based on DEM in mountain area |
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| LI Jun,HUANG Jing-feng.Spatial distribution of duration of possible sunshine based on DEM in mountain area[J].Journal of Zhejiang University(Sciences Edition),2007,34(3):346-350. |
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| Authors: | LI Jun HUANG Jing-feng |
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| Institution: | 1. Department of Resource Science, Zhejiang University, Hangzhou 310029, China ;2. Institute of Desert Meteorology, China Meteorological Admimistration , Wulumuqi 830002, China |
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| Abstract: | DEM data with high spatial resolution were used in mountain areas. The topographic factors of altitude, slope, aspect, etc were derived from DEM. With the help of GIS technology, the spatial distribution of duration of possible sunshine with high spatial resolution was estimated to realize the visual expression of the actual spatial distribution of duration of possible sunshine. The spatial distribution characteristics of monthly duration of possible sunshine were analyzed. It has great significance for the research fields of agriculture, forestry and ecology in mountain areas. |
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| Keywords: | mountain area duration of possible sunshine digital elevation model spatial distribution |
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