干旱区生态环境知识资源中心(Arid): Sky View Factors from Synthetic Fisheye Photos for Thermal Comfort Routing-A Case Study in Phoenix, Arizona

Arid

DOI	10.17645/up.v2i1.855
	Sky View Factors from Synthetic Fisheye Photos for Thermal Comfort Routing-A Case Study in Phoenix, Arizona
	Middel, Ariane; Lukasczyk, Jonas; Maciejewski, Ross
通讯作者	Middel, A
来源期刊	URBAN PLANNING
ISSN	2183-7635
出版年	2017
卷号	2 期号:1 页码:19-30
英文摘要	The Sky View Factor (SVF) is a dimension-reduced representation of urban form and one of the major variables in radiation models that estimate outdoor thermal comfort. Common ways of retrieving SVFs in urban environments include capturing fisheye photographs or creating a digital 3D city or elevation model of the environment. Such techniques have previously been limited due to a lack of imagery or lack of full scale detailed models of urban areas. We developed a web based tool that automatically generates synthetic hemispherical fisheye views from Google Earth at arbitrary spatial resolution and calculates the corresponding SVFs through equiangular projection. SVF results were validated using Google Maps Street View and compared to results from other SVF calculation tools. We generated 5-meter resolution SVF maps for two neighborhoods in Phoenix, Arizona to illustrate fine-scale variations of intra-urban horizon limitations due to urban form and vegetation. To demonstrate the utility of our synthetic fisheye approach for heat stress applications, we automated a radiation model to generate outdoor thermal comfort maps for Arizona State University's Tempe campus for a hot summer day using synthetic fisheye photos and on-site meteorological data. Model output was tested against mobile transect measurements of the six-directional radiant flux density. Based on the thermal comfort maps, we implemented a pedestrian routing algorithm that is optimized for distance and thermal comfort preferences. Our synthetic fisheye approach can help planners assess urban design and tree planting strategies to maximize thermal comfort outcomes and can support heat hazard mitigation in urban areas.
英文关键词	climate-sensitive urban design desert city heat MRT outdoor thermal comfort PET sky view factor thermal comfort routing urban form walkability
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	ESCI
WOS记录号	WOS:000408827600003
WOS关键词	MEAN RADIANT TEMPERATURE ; URBAN HEAT-ISLAND ; CANYON GEOMETRY ; SOFTWARE TOOL ; DESIGN ; EXPOSURE ; IMPACT ; FLUXES ; SPACES ; CITY
WOS类目	Urban Studies
WOS研究方向	Urban Studies
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332221
作者单位	[Middel, Ariane] Arizona State Univ, Sch Geog Sci & Urban Planning, Tempe, AZ 85281 USA; [Lukasczyk, Jonas] Univ Kaiserslautern, Dept Comp Sci, D-67663 Kaiserslautern, Germany; [Maciejewski, Ross] Arizona State Univ, Sch Comp Informat & Decis Syst Engn, Tempe, AZ 85281 USA
推荐引用方式 GB/T 7714	Middel, Ariane,Lukasczyk, Jonas,Maciejewski, Ross. Sky View Factors from Synthetic Fisheye Photos for Thermal Comfort Routing-A Case Study in Phoenix, Arizona[J]. Arizona State University,2017,2(1):19-30.
APA	Middel, Ariane,Lukasczyk, Jonas,&Maciejewski, Ross.(2017).Sky View Factors from Synthetic Fisheye Photos for Thermal Comfort Routing-A Case Study in Phoenix, Arizona.URBAN PLANNING,2(1),19-30.
MLA	Middel, Ariane,et al."Sky View Factors from Synthetic Fisheye Photos for Thermal Comfort Routing-A Case Study in Phoenix, Arizona".URBAN PLANNING 2.1(2017):19-30.