نتایج جستجو برای: جزایر حرارتی شهری uhi

تعداد نتایج: 44394  

2015
Aiko Nakano Bruno Bueno Leslie Norford Christoph F Reinhart

It is well known that local urban heat island (UHI) effects impact the urban environment from a public health standpoint and with regards to heating and cooling energy used by buildings. Unfortunately, neither urban planners and designers nor energy consultants currently have quantitative tools or methods at their disposal to incorporate this effect into the design of a neighborhood. This manus...

2015
Md. Nuruzzaman

High temperature in the city centers than its’ surroundings known as the Urban Heat Island (UHI) effect, which is causing discomfort to the urban dwellers in the summer time is gaining much attention around the world because the world is getting urbanized as it advances in technology. Alterations of surface area, improper urban planning, air pollution, etc. are causing this increasingly growing...

Journal: :International journal of biometeorology 2010
Humberto R Silva Patrick E Phelan Jay S Golden

A zero-dimensional energy balance model was previously developed to serve as a user-friendly mitigation tool for practitioners seeking to study the urban heat island (UHI) effect. Accordingly, this established model is applied here to show the relative effects of four common mitigation strategies: increasing the overall (1) emissivity, (2) percentage of vegetated area, (3) thermal conductivity,...

2016
V. Costanzo G. Evola L. Marletta

The intensification of the Urban Heat Island effect (UHI) is a problem that involves several fields, and new adequate solutions are required to mitigate its amplitude. The construction sector is strictly related with this phenomenon; in particular, roofs are the envelope components subject to the highest solar irradiance, hence any mitigation strategy should start from them and involve their ap...

2013
Leong Wai Siu Melissa A. Hart

This paper addresses the methodological concerns in quantifying urban heat island (UHI) intensity in Hong Kong SAR, China. Although the urban heat island in Hong Kong has been widely investigated, there is no consensus on the most appropriate fixed point meteorological sites to be used to calculate heat island intensity. This study utilized the Local Climate Zones landscape classification syste...

2014
Valéry Masson Marion Bonhomme Jean-Luc Salagnac Xavier Briottet Aude Lemonsu

*Correspondence: Valéry Masson, Météo-France/CNRS, Centre National de Recherches Météorologiques/Groupe d’étude de l’atmosphère Météorologique, 42 av Coriolis, 31057 Toulouse, France e-mail: [email protected] The production of solar energy in cities is clearly a way to diminish our dependency to fossil fuels, and is a good way to mitigate global warming by lowering the emission of greenhou...

2012
Dursun Zafer SEKER

Thermal infrared satellite sensor images are widely used for assessing the thermal urban environment as well as for identifying the Urban Heat Islands (UHI) in highly urbanized areas. In this study, the relationship between urban growth and UHI in the megacity of Istanbul was investigated using the Landsat 5 TM satellite sensor data and temperature recordings obtained from the meteorological st...

2017
S. Ma M. Goldstein A. J. Pitman N. Haghdadi I. MacGill

Cities import energy, which in combination with their typically high solar absorption and low moisture availability generates the urban heat island effect (UHI). The UHI, combined with human-induced warming, makes our densely populated cities particularly vulnerable to climate change. We examine the utility of solar photovoltaic (PV) system deployment on urban rooftops to reduce the UHI, and we...

2004
J. ANTHONY STALLINS

Weather-related hazards are the result of interactions between the physical environment and the demographics of the community that experience them. Numerous studies have documented urban heat island (UHI) modification of cloud-to-ground lightning flash densities, but none have linked flashes to the underlying demographics. In this study, I compared flash and housing densities for 25 counties en...

2012
Linli Cui Jun Shi

This paper analyzes the processes and characteristics of urbanization in Shanghai, focusing on the population and land use and land cover (LULC) change, and its correlation with the evolution of climatic and ecological indicators based on the historical land use data, meteorological station data, social statistical data, normalized difference vegetation index (NDVI) and land surface temperature...

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