Heat island effect

heat island effect

[′hēt ‚ī·lənd i‚fekt]
(meteorology)
In urban areas with tall buildings, an atmospheric condition in which heat and pollutants create a haze dome that prevents warm air from rising and being cooled at a normal rate, especially in the absence of strong winds.

Heat island effect

A phenomenon that occurs in developed areas where the replacement of natural land cover with paving, buildings, roads, and parking lots results in an increase in outdoor temperatures. The heat island effect can be mitigated by vegetation, green roofs, and light-colored materials that reflect heat. Urban heat islands can be as much as 10 degrees Fahrenheit hotter than the surrounding undeveloped areas.
References in periodicals archive ?
However, simple design changes, such as painting the surface in a brighter colour helps to reflect most of the heat absorbed from sunlight, thereby fighting off the heat island effect. The advantages, such an approach offers, are not just limited to water use either.
A city experiences an urban heat island effect when it has warmer temperature than nearby rural areas.
The phenomenon of higher temperatures in areas with a lot of buildings and pavement is known as the urban heat island effect. Previous studies show that urban heat islands are associated with higher pollution and negative health conditions, especially for the elderly, young children and people with lower incomes.
Urban heat islands are frequently cited as a reason to install a cool roof, but the heat island effect is actually caused by a number of other factors in addition to dark-colored roofs.
Urban forests are a great help to keep atmosphere cooler, as tree cover helps in reducing air temperatures and the urban heat island effect. This reduction of temperature not only lowers energy use, it also improves air quality, as the formation of ozone is dependent on temperature.
Though a few individuals are working to develop mini urban forests, but these efforts are not enough to offset the killer urban heat island effect.Urban forestry is the care and management of single trees and tree populations in urban settings for the purpose of improving the urban environment.
Because Taipei lies in a basin, it aggravates the heat island effect, resulting in an even more rapid temperature rise, according to the organization.
Chicago residents are familiar with the city's sweltering summers, but few know that the city's heat is amplified by the phenomenon known as the urban heat island effect.
This reflection helps to reduce the "Heat Island Effect," the concentration of hardscape which makes urban areas Verifiably hotter than lush rural areas.
As part of broader efforts to manage urban heat island effect, Alliance Data has been working to expand tree canopies in large metropolitan areas across the country in cities, such as Dallas, Chicago, Columbus and San Francisco.
2015b), and the urban heat island effect due to local urbanization around the weather stations, which can exacerbate the heatwave by enhancing sensible heat flux and longwave radiation from the surface during the daytime (Tan et al.