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。
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.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2007年第8期905-911,共7页
Acta Energiae Solaris Sinica
基金
973项目(2001CB309404)
中国科学院寒区早区环境与工程研究所知识创新工程项目(2003102)
关键词
DEM
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
DEM
slope grade
slope aspect
shade
isotropic sky view factor
direct solar radiation
diffuse radiation
adjacent terrain radiation
