Online citations, reference lists, and bibliographies.

Canyon Geometry And The Nocturnal Urban Heat Island: Comparison Of Scale Model And Field Observations

T. Oke
Published 1981 · Geology

Cite This
Download PDF
Analyze on Scholarcy
Share
A simple hardware scale model is used to simulate nocturnal cooling rates for rural and urban environments under calm and cloudless conditions. Comparison with field observations gathered under similar conditions shows the model capable of reproducing many of the features of the temporal development of urban heat islands and the long-wave radiative exchange in urban canyons. The model is used to investigate the roles played by rural/urban differences in geometry and thermal admittance. The results of the experiments show that canyon geometry in the central portion of a city (as measured by the sky view factor) is a relevant variable in producing nocturnal urban heat islands due to its role in regulating long-wave radiative heat loss. It is also demonstrated that this measure is central to the relationship between city size and heat island intensity. The importance of canyon geometry as a feature of urban design is discussed. Thermal admittance differences can also produce realistic heat island features but their magnitude requires quantification in the field.



This paper is referenced by
10.1007/s00484-017-1345-x
Long-term perceptions of outdoor thermal environments in an elementary school in a hot-humid climate
Wen-Mei Shih (2017)
10.1007/978-981-15-1714-3_2
Urban Climates: Theories, Approaches, and Design Implications
F. Yang (2020)
10.1016/J.APGEOG.2016.09.015
Predicting air temperature simultaneously for multiple locations in an urban environment: A bottom up approach
Shai Kaplan (2016)
10.1007/978-3-319-27996-1_1
Multiscale Analysis as a Central Component of Urban Physics Modeling
Benoit Beckers (2016)
10.3923/RJES.2011.1.21
Urbanization Effects on Local Climate in Tehran Megapolis
A. R. Saadatabad (2011)
Hemispherical Photography as a Tool for Urban Sustainability Evaluation and Design
Paul Osmond (2010)
10.1080/01431161.2014.902549
Synoptic mapping of high-rise buildings in urban areas based on combined shadow analysis and scale space processing
Y. Zhang (2014)
10.1016/J.SOLENER.2019.07.045
Exploiting selective angular properties of retro-reflective coatings to mitigate solar irradiation within the urban canyon
M. Manni (2019)
10.1111/J.1541-0064.2000.TB00709.X
Influence of meteorological conditions on the intensity and form of the urban heat island effect in Regina
I. Stewart (2000)
10.1016/S0169-2046(00)00034-7
The use of climate knowledge in urban planning
I. Eliasson (2000)
10.1007/S00703-008-0329-0
Urban-breeze circulation during the CAPITOUL experiment: observational data analysis approach
J. Hidalgo (2008)
10.1007/s10584-011-0324-1
Urban-induced thunderstorm modification in the Southeast United States
W. Ashley (2011)
10.1175/JAM2169.1
Thermal Effects of Urban Canyon Structure on the Nocturnal Heat Island: Numerical Experiment Using a Mesoscale Model Coupled with an Urban Canopy Model
H. Kusaka (2004)
Sky view factors estimation using a 3d-gis extension
L. Souza (2003)
10.1023/B:CLIM.0000043136.58100.CE
Urbanization Effect on the Observed Change in Mean Monthly Temperatures between 1951-1980 and 1971-2000 in Korea
U. Chung (2004)
The combined mitigating effect of colonnaded ground areas and vegetation on the UCL air temperature
L. Shashua-Bar (2004)
10.1007/s10980-013-9868-y
The impact of distinct anthropogenic and vegetation features on urban warming
Soe W. Myint (2013)
10.1016/j.scitotenv.2015.01.060
Analyzing the heat island magnitude and characteristics in one hundred Asian and Australian cities and regions.
M. Santamouris (2015)
10.1007/s10546-013-9883-1
A Multi-layer Radiation Model for Urban Neighbourhoods with Trees
E. S. Krayenhoff (2013)
10.1007/S004840050082
A comparative analysis of heat waves and associated mortality in St. Louis, Missouri – 1980 and 1995
K. E. Smoyer (1998)
Feasibility Analysis of Open-government Data for the Automated Calculation of the Micro-climatic Attributes of Urban Units of Observation in the City of Vienna
Stefan Glawischnig (2014)
Evaluating The Effects of High rise building On Urban Heat Island by Sky View Factor: A case study of Narmak neighborhood, Tehran
Hadi Rezaei Rad (2015)
10.1515/mgr-2015-0016
The role of ecosystem services in climate and air quality in urban areas: Evaluating carbon sequestration and air pollution removal by street and park trees in Szeged (Hungary)
Márton Attila Kiss (2015)
Microclimate and building energy in the built environment:A study of planning high-rise building groups at a city-block scale in China
Xi Deng (2018)
10.4157/GEOGREVJAPANB.91.29
Seasonal Variations of the Urban Heat Island in Kumagaya, Japan
Nakamura Yusuke (2018)
Urban planning and design for local climate mitigation
Vettorato Daniele (2010)
10.14288/1.0086265
Mesometeorological modelling and trajectory studies during an air pollution episode in the lower Fraser Valley, British Columbia, Canada
Yuelong Miao (1993)
A pedestrian level strategy to minimize outdoor sunlight exposure in hot summer.
Xiaojiang Li (2019)
10.3390/ijerph16203960
The Effects of Different Space Forms in Residential Areas on Outdoor Thermal Comfort in Severe Cold Regions of China
Zheming Liu (2019)
10.2139/ssrn.3394253
Landsat görüntüleri ile Adana yüzey ısı adası (Adana Surface Heat Island using Landsat Images)
Erkan Yılmaz (2015)
10.1016/J.BUILDENV.2018.10.055
QuVue implementation for decisions related to high-rise residential building layouts
Hyoungsub Kim (2019)
10.1016/J.BUILDENV.2014.08.012
Breakdown of the night time urban heat island energy budget
P.J.C. Schrijvers (2015)
See more
Semantic Scholar Logo Some data provided by SemanticScholar