globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2014.09.053
Scopus记录号: 2-s2.0-84907691916
论文题名:
A multi-method and multi-scale approach for estimating city-wide anthropogenic heat fluxes
作者: Chow W; T; L; , Salamanca F; , Georgescu M; , Mahalov A; , Milne J; M; , Ruddell B; L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 99
起始页码: 64
结束页码: 76
语种: 英语
英文关键词: Anthropogenic heat ; Urban climate ; Waste heat
Scopus关键词: Anthropogenic heat ; Anthropogenic heat flux ; Multi methods ; Multi-scale approaches ; Urban climates ; Waste heat ; anthropogenic source ; climate modeling ; eddy covariance ; GIS ; heat flux ; heat island ; inventory ; land use change ; quality control ; simulation ; spatiotemporal analysis ; subtropical region ; traffic emission ; air conditioning ; Article ; boundary layer ; city ; climate ; computer simulation ; energy ; energy consumption ; environmental temperature ; geographic information system ; heat ; heat flux ; heat transfer ; human ; human activities ; industrial area ; land use ; population density ; precipitation ; residential area ; spatiotemporal analysis ; summer ; temperature related phenomena ; traffic and transport ; United States ; urbanization ; warming ; Arizona ; Phoenix ; United States
Scopus学科分类: Environmental Science: Water Science and Technology ; Earth and Planetary Sciences: Earth-Surface Processes ; Environmental Science: Environmental Chemistry
英文摘要: A multi-method approach estimating summer waste heat emissions from anthropogenic activities (QF) was applied for a major subtropical city (Phoenix, AZ). These included detailed, quality-controlled inventories of city-wide population density and traffic counts to estimate waste heat emissions from population and vehicular sources respectively, and also included waste heat simulations derived from urban electrical consumption generated by a coupled building energy - regional climate model (WRF-BEM+BEP). These component QF data were subsequently summed and mapped through Geographic Information Systems techniques to enable analysis over local (i.e. census-tract) and regional (i.e. metropolitan area) scales. Through this approach, local mean daily QF estimates compared reasonably versus (1.) observed daily surface energy balance residuals from an eddy covariance tower sited within a residential area and (2.) estimates from inventory methods employed in a prior study, with improved sensitivity to temperature and precipitation variations. Regional analysis indicates substantial variations in both mean and maximum daily QF, which varied with urban land use type. Average regional daily QF was ~13Wm-2 for the summer period. Temporal analyses also indicated notable differences using this approach with previous estimates of QF in Phoenix over different land uses, with much larger peak fluxes averaging ~50Wm-2 occurring in commercial or industrial areas during late summer afternoons. The spatio-temporal analysis of QF also suggests that it may influence the form and intensity of the Phoenix urban heat island, specifically through additional early evening heat input, and by modifying the urban boundary layer structure through increased turbulence. © 2014 The Authors.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80534
Appears in Collections:气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: Department of Geography, National University of Singapore, AS2, #03-01, 1 Arts Link, Kent Ridge, Singapore, Singapore; School of Mathematical and Statistical Sciences, Arizona State University, United States; School of Geographical Sciences and Urban Planning, Arizona State University, United States; School of Meteorology, University of Oklahoma, United States; Fulton Schools of Engineering, Arizona State University, United States

Recommended Citation:
Chow W,T,L,et al. A multi-method and multi-scale approach for estimating city-wide anthropogenic heat fluxes[J]. Atmospheric Environment,2014-01-01,99
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Chow W]'s Articles
[T]'s Articles
[L]'s Articles
百度学术
Similar articles in Baidu Scholar
[Chow W]'s Articles
[T]'s Articles
[L]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Chow W]‘s Articles
[T]‘s Articles
[L]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.