Design to Reduce Heat Island Effect of the Built Environment on the Ecology of the Locality: Case Study: To evaluate the Effects of Population on the UHI in Tehran

By GH Hossein Memarian and Narges Dehghan.

Published by The Sustainability Collection

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Article: Print $US10.00
Article: Electronic $US5.00

Urban areas present distinctive micro climates tend to have higher air temperatures than their rural surroundings as a result of gradual surface modifications that include replacing the natural vegetation with buildings and roads. The term “Urban Heat Island” describes this phenomenon.
The urban heat island phenomenon has been the subject of intense study over the past several decades. As the air temperature rises, so does the demand for air-conditioning (a/c). This leads to higher emissions from power plants, as well as increased smog formation as a result of warmer temperatures. These strategies generally fall into two categories; increasing urban albedo (reflectivity to solar radiation) and increasing gevapotranspiration. Albedo increases are generally accomplished through high albedo roofing and paving technologies. Increase in evapotranspiration is accomplished through a combination of decreasing the fraction of impervious surfaces and planting vegetation in urban areas (shade trees, vegetated walls, and rooftop gardens/ecoroofs). Related research into the effects of elevated urban temperatures on air quality, energy consumption, and human health has provided motivation for reducing the magnitude of the UHI (Urban Heat Island). To know the presence and to determine the intensity of UHI in the cities of Iran, a case study of Tehran is also carried out.

Keywords: Urban Heat Island, Air Pollution, Solar Radiation, Cool Material, Green Space

The International Journal of Environmental, Cultural, Economic and Social Sustainability, Volume 5, Issue 2, pp.183-200. Article: Print (Spiral Bound). Article: Electronic (PDF File; 1.576MB).

GH Hossein Memarian

ASSOCIATE PROFESSOR, 1985: Statal Architectural Studio, Architect., 1986: School of Architecture of University of Science and Technology., 1990:Ministry of Culture and Higher Education of Islamic Republic of Iran, , Consultant, , 1999: Research Manager, School of Architecture of University of Science and Technology, University of Science and Technology, Tehran, Tehran, Iran (Islamic Republic of)

School of Architecture. the University of Science and Technology of Tehran. Gh. Hossein Memarian taught from 1985 to 1994 at School of Architecture of University of Science and Technology at Tehran. He was trained as an architect at Genoa University in Italy. His Ph.D. has been taken at School of Architecture, the Manchester University in 1998. He has held the chair of Architectural Research Center at School of Architecture of University of Science and Technology from 1987 to 1994.

Narges Dehghan

Phd Student, Architecture, Iran University of Science & Technology, Tehran, Tehran, Iran (Islamic Republic of)

I am a new PhD student, my research topic is about “Reaching to the Sustainable pattern of residence in hot-arid climate basically on surveying of sustainable characters of traditional residential architecture in Yazd(in Iran)”. she was student of master in sustainable architecture at Iran University of Science and Technology (IUST), Tehran, Iran. She obtained her bachelor degree in architecture from Iran University of Science and Technology (IUST).

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