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	3D MODELING OF TREE CROWNS AND ITS APPLICATION IN SOLAR ENERGY POTENTIAL MAPPING FOR URBAN NEIGHBORHOODS
	Lv, Yang ; Zhang, Xianfeng ; Liu, Yu
	2014
关键词	Trees Building scale Solar energy Potential assessment 3D modeling LIDAR
英文摘要	Shading cast by tall trees in urban areas can significantly limit the access of direct solar irradiance to building facades. In this paper, we present a method to model tree crowns and quantify tree shadow effect on solar irradiance received by buildings. Three-dimension (3D) models for trees were constructed using Poisson surface reconstruction method from Light Detection and Ranging (LiDAR) point clouds and QuickBird image data. Tree crown shadows were modeled by applying the improved Inclusion-exclusion Principle. Direct normal irradiance was derived from remote sensing data first and then employed to the calculation of solar energy radiation received by building rooftops and facades. The proposed method was applied to a case study in Nanjing City. Results indicated that tree shadow played an important role in determining the solar radiation energy received by a building. The improved solar potential result provided fundamental data for solar-related equipment selection and installment, as well as building energy consumption estimation.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000349688106167&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Electrical & Electronic; Geosciences, Multidisciplinary; Remote Sensing; EI; CPCI-S(ISTP); 0
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/311792]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Lv, Yang,Zhang, Xianfeng,Liu, Yu. 3D MODELING OF TREE CROWNS AND ITS APPLICATION IN SOLAR ENERGY POTENTIAL MAPPING FOR URBAN NEIGHBORHOODS. 2014-01-01.

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