Temperature cross-section features in an urban area
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Tartalom: http://ac.els-cdn.com/S0169809501000874/1-s2.0-S016980950...
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published

Type = Article
Cím:
Temperature cross-section features in an urban area
Létrehozó:
Unger, János
Sümeghy, Zoltán
Zoboki, J.
Kiadó:
Elsevier
Dátum:
2001
Téma:
QE04 Meteorology / meteorológia
Tartalmi leírás:
This study examines the connection between the built-up urban surface and near-surface air
temperature. The studied city ?Szeged, Hungary. is located on a low and flat flood plain with a
population of 160,000. Data were collected by mobile measurements under different weather
conditions between March 1999 and February 2000. The efforts have been focussed on investigating
the maximum development of the urban heat island ?UHI. along an urban cross-section.
According to the results, the UHI intensity changed according to season and month, as a
consequence of the prevailing weather conditions. The role of cloudiness and wind speed on the
temporal variation of the largest UHI, which represents the increasing effect of Szeged on
temperature, is clearly recognized during most of the time in the studied period. The seasonal
profiles follow remarkably well the general cross-section of the typical UHI described by Oke
?Oke, T.R., 1987. Boundary Layer Climates. Routledge, London. who defines its characteristic
parts as ?cliff?, ?plateau? and ?peak?. The usefulness of the normalized values in the investigation
is proved, the form of the seasonal mean UHI profile is independent of the seasonal climatological
conditions, and is determined to a high degree by urban surface factors. As a conclusion, we
suggest a modified model describing the metropolitan temperature variable for cities situated in
simple geographical conditions: it is equal to the sum of components of the basic climate of the
region and of the production of urbanization at the surface, where this last term is a multiplication
of weather and urban surface factors.
Típus:
Article
PeerReviewed
Formátum:
text
Azonosító:
Unger, János and Sümeghy, Zoltán and Zoboki, J. (2001) Temperature cross-section features in an urban area. ATMOSPHERIC RESEARCH, 58. pp. 117-127. ISSN 0169-8095
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