干旱区生态环境知识资源中心(Arid): Impact of evolving building morphology on microclimate in a hot arid climate

Arid

DOI	10.1016/j.scs.2019.102011
	Impact of evolving building morphology on microclimate in a hot arid climate
	Galal, Omar M.; Mahmoud, Hatem; Sailor, David
通讯作者	Galal, OM
来源期刊	SUSTAINABLE CITIES AND SOCIETY
ISSN	2210-6707
EISSN	2210-6715
出版年	2020
卷号	54
英文摘要	In Upper Egypt, many new cities were planned without thoroughly considering the environmental impacts. This has led to climatically insensitive urban settlements. On the other hand, in the Greater Cairo Region, older urban communities were originally planned with similar characteristics. However, they have experienced an unplanned evolutionary process over the last decades. These settlements became denser as residents built additions vertically or replaced existing structures with higher ones. Consequently, the geometric parameters of outdoor spaces have become more complex, with significant impacts on the local micro climate. As a way of supporting urban planning policies in Upper Egypt's new cities, this study questions the feasibility of this densification phenomenon with regard to outdoor thermal comfort. The data introduced are based on site surveys in The Greater Cairo Region, onsite climatic measurements in New Aswan city, and microclimate simulations using ENVI-met. This study simulates the impact of urban form of two quarters (new and transformed) on Physiological Equivalent Temperature (PET) at pedestrian level. The simulation was conducted under Aswan's extreme hot climatic conditions in summer. The results show that the densification has lowered average PET values by 1 degrees C throughout the entire quarter and up to 5.5 C in some of the evolved areas during the daytime hours. However, at other locations within EastWest oriented streets the increased heights had a negative effect and was insignificant at the wider spaces. These findings may inspire change in new communities' planning polices or guide the manner of growth for settlements in arid climates.
英文关键词	Upper Egypt Urban morphology Physiological equivalent temperature Sky view factor New cities Urban density
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000545577700047
WOS关键词	OUTDOOR THERMAL COMFORT ; HIGH-DENSITY CITIES ; URBAN FORM ; STREET CANYON ; ASPECT RATIO ; AIR-QUALITY ; DESIGN ; TEMPERATURE ; ORIENTATION ; VENTILATION
WOS类目	Construction & Building Technology ; Green & Sustainable Science & Technology ; Energy & Fuels
WOS研究方向	Construction & Building Technology ; Science & Technology - Other Topics ; Energy & Fuels
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/2XILL650/324930
作者单位	[Galal, Omar M.] Arab Acad Sci Technol & Maritime Transport, Coll Engn, Dept Architectural Engn & Environm Design, Smart Village Campus, Alexandria, Egypt; [Galal, Omar M.] Tech Univ Berlin, Berlin, Germany; [Mahmoud, Hatem] Aswan Univ, Coll Engn, Dept Architectural Engn, Aswan, Egypt; [Sailor, David] Arizona State Univ, Sch Geog Sci & Urban Planning, Coll Liberal Arts & Sci, Tempe, AZ 85287 USA
推荐引用方式 GB/T 7714	Galal, Omar M.,Mahmoud, Hatem,Sailor, David. Impact of evolving building morphology on microclimate in a hot arid climate[J]. Arizona State University,2020,54.
APA	Galal, Omar M.,Mahmoud, Hatem,&Sailor, David.(2020).Impact of evolving building morphology on microclimate in a hot arid climate.SUSTAINABLE CITIES AND SOCIETY,54.
MLA	Galal, Omar M.,et al."Impact of evolving building morphology on microclimate in a hot arid climate".SUSTAINABLE CITIES AND SOCIETY 54(2020).