urban heat island

(redirected from heat island)
Also found in: Dictionary, Medical, Wikipedia.

urban heat island

[′ər·bən ′hēt ‚ī·lənd]
(meteorology)
Increased urban temperatures of 1-2°C higher for daily maxima and 1-9°C for daily minima compared to rural environs resulting from changes in moisture balance due to impermeable surfaces, decreased humidity, or alteration in heat balance.
References in periodicals archive ?
Although heat islands may form on any rural or urban area and at any spatial scale, cities like Karachi, Lahore, Hyderabad, Multan, and Rawalpindi are favoured.
Heat island with high temperatures occurs on the atmosphere and surface of urban areas compared to rural environment.
Additionally, Bentonville worked with Plan-It Geo out of Colorado to prepare an urban tree canopy assessment to identify 176,258 planting sites, taking into account such things as wildlife linkages and urban heat islands to prioritize the locations based on their greatest potential benefit.
Heat island effect: rewards projects that take steps to reduce their influence on the heat island effect in our cities.
In 2001, Austin's city council recognized this problem and passed a resolution implementing a Heat Island Containment Policy, which created new initiatives for combating extra heat in the city.
Studies also indicate cities record less precipitation than surrounding areas where the heat island effect is present.
The urban heat island effect has been shown to influence the onset of spring and autumn in some areas, but not others.
Materials have been selected to reduce the Urban Heat Island effect, through the use of materials with high Solar Reflective Index (SRI).
It allows for a longer life expectancy, reduces maintenance costs, helps gain LEED credits, is recyclable, reduces light costs and reduces heat island effect.
Beginning with an overview of principles of sustainable design, the volume covers such topics as concrete thermal mass, roller compacted concrete pavements, pervious concrete for green surfaces, heat island effects, and reuse and the rehabilitation of concrete structures.
Analyzing temperature data from 15 sources, in some cases going as far back as 1800, the Berkeley Earth study directly addressed scientific concerns raised by skeptics, including the urban heat island effect, poor station quality, and the risk of data selection bias.
Climate-related pronouncements like these are really hypotheses posing as truth, and it is easy to check whether this warming is a result of the heat island or something forced by dreaded climate change.