气候变化领域集成服务门户(CCPortal): The environmental neighborhoods of cities and their spatial extent

CCPortal

DOI	10.1088/1748-9326/ab8d7e
	The environmental neighborhoods of cities and their spatial extent
	Llaguno-Munitxa M.; Bou-Zeid E.
发表日期	2020
ISSN	17489318
卷号	15 期号:7
英文摘要	We define the new concept of an environmental neighborhood as the surrounding area influencing the environmental quality at a given point in a city, and propose a novel methodology to measure its spatial extent. We compute the spatial correlation of air quality and urban parameters from high spatial resolution datasets for New York City, where the urban characteristics are averaged over variable urban footprint sizes, ranging from 25 m × 5 m to 5000 m × 5000 m. The scale at which these correlations peak indicates the extent of the neighboring area that influences pollutant concentrations deviations from the city-wide average. The results indicate that the scale of these environmental neighborhoods ranges from ∼1000 m (for attributes such as road area or building footmark) down to ∼200 m (for building use or green area). Selecting this optimal neighborhood scale is thus critical for identifying the urban fabric and activity attributes that have the largest influence on air quality; smaller footprints do not contain all the pertinent urban surface information while larger footprints contain irrelevant, potentially misleading information. The quantification of this scale of influence therefore enables more effective and localized policies and interventions to improve urban environmental quality and reduce urban health disparities. More broadly, the findings indicate that, in a wide range of environmental and ecological applications where surface heterogeneity is a primary driver, the scale of analysis is not an external parameter to be chosen, but rather an internal parameter dictated by the problem physics. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	air quality; sensor networks; spatial heterogeneity; urban environment; urban planning
语种	英语
scopus关键词	Environmental engineering; Research; Environmental quality; High spatial resolution; Misleading informations; Optimal neighborhoods; Pollutant concentration; Surface heterogeneities; Urban characteristics; Urban environmental quality; Air quality; air quality; concentration (composition); data set; environmental assessment; environmental quality; neighborhood; spatial analysis; spatial resolution; urban policy
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153939
作者单位	Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, United States
推荐引用方式 GB/T 7714	Llaguno-Munitxa M.,Bou-Zeid E.. The environmental neighborhoods of cities and their spatial extent[J],2020,15(7).
APA	Llaguno-Munitxa M.,&Bou-Zeid E..(2020).The environmental neighborhoods of cities and their spatial extent.Environmental Research Letters,15(7).
MLA	Llaguno-Munitxa M.,et al."The environmental neighborhoods of cities and their spatial extent".Environmental Research Letters 15.7(2020).