Modification of solar radiation model over rugged terrain  

作　　者：Xin Li Guodong Cheng Xianzhang Chen Ling Lu 

机构地区：[1]Chinese Acad Sci, Lanzhou Inst Glaciol & Geocryol, Lanzhou 730000, Peoples R China

出　　处：《Chinese Science Bulletin》1999年第15期1345-1350,共6页

摘　　要：The formula for the duration of possible sunshine has been modified. Two geometrical factors, the circumsolar view factor and the isotropic view factor for calculating solar radiation, have been proposed. The ray-tracing method in computer cartography has been applied to simulating the obstruction of terrain over solar radiation. In addition, the shape factor has been introduced to calculate the reflected radiation from surrounding terrain.The formula for the duration of possible sunshine has been modified. Two geometrical factors, the circumsolar view factor and the isotropic view factor for calculating solar radiation, have been proposed. The ray-tracing method in computer cartography has been applied to simulating the obstruction of terrain over solar radiation. In addition, the shape factor has been introduced to calculate the reflected radiation from surrounding terrain.

关 键 词：solar radiation DURATION of possible SUNSHINE clrcumsolar VIEW FACTOR ISOTROPIC VIEW FACTOR TERRAIN influence. 

分 类 号：P182[天文地球—天文学]