Spatial distribution of possible sunshine over rugged terrains in Guiyang City based on DEM

Xianzhong Han; Fuzeng Wang; Shujie Yuan

doi:10.1117/12.832450

30 October 2009 Spatial distribution of possible sunshine over rugged terrains in Guiyang City based on DEM

Xianzhong Han, Fuzeng Wang, Shujie Yuan

Proceedings Volume 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications; 749833 (2009) https://doi.org/10.1117/12.832450
Event: Sixth International Symposium on Multispectral Image Processing and Pattern Recognition, 2009, Yichang, China

Abstract

Based on digital elevation model (DEM), the distributed models for calculating possible sunshine (PS) over rugged terrains (RT) are established and this model considers the influence of slope, aspect, and terrain inter-shielding. The spatial distribution of PS with 100m×100m over RT in Guiyang city is calculated by this model. The results show that the influences of slope, aspect and the terrain inter-shielding on PS are very big and it is greater than the effect of latitude. The spatial distribution of PS over RT in Guiyang city has apparent terrain feature. The spatial difference of PS over RT is big. The values of annual PS over RT in Guiyang city are 3233~4368 hours, the difference is large in different regions. The smaller values lie in shady slope of the mountain. The bigger values lie in sunny slope of the mountain. The values of PS over RT in the Guiyang city are 154~322 hours in January. The values of PS over RT in Guiyang city are 411~421 hours in July.

Citation Download Citation

Xianzhong Han, Fuzeng Wang, and Shujie Yuan "Spatial distribution of possible sunshine over rugged terrains in Guiyang City based on DEM", Proc. SPIE 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications, 749833 (30 October 2009); https://doi.org/10.1117/12.832450

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