Watkins, Richard, Littlefair, P, Kolokotroni, M, Palmer, J (2002) The London Heat Island – surface and air temperature measurements in a park and street gorges. ASHRAE Transactions, 108 (1). pp. 419-427. ISSN 0001-2505. (KAR id:52517)
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Abstract
This paper reports results from short-term tests carried
out as part of a project to characterize the urban heat island
in London. The investigations looked at air temperatures
upstream and downstream of a park and the surface and air
temperatures within street gorges. It was found that the air in
the park was associated with lower mean (0.6°C [1.1°F] less)
and peak temperatures (1.1°C [2.0°F] less) compared to residential
or shopping streets on either side. The apparent cooling
influence of the park extended downstream between 200 and
400 meters (200 to 400 yards). Measurements in four street
gorges showed a wide variation in surface temperatures—up
to 22°C (40°F)—although 5ºC to 10°C (9ºF to 18°F) was more
typical. For a given façade, lighter surfaces were associated
with lower temperatures, between 6ºC and 10°C (11ºF and
18°F) cooler. A strong relationship was found between mean
gorge surface temperature and the gorge air temperature
measured at 6 m (20 ft) (half-gorge height). This was true for
both a sunny day and a cloudy day. The results suggest that
significant reductions in air temperature may be possible by
adjusting the albedo of urban surfaces.
Item Type: | Article |
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Subjects: | Q Science |
Divisions: | Divisions > Division of Arts and Humanities > Kent School of Architecture and Planning |
Depositing User: | Richard Watkins |
Date Deposited: | 29 Nov 2015 16:24 UTC |
Last Modified: | 16 Nov 2021 10:21 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/52517 (The current URI for this page, for reference purposes) |
Watkins, Richard: | ![]() |
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