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Simulation of the mean urban heat island using 2D surface parameters: empirical modeling, verification and extension.

Balázs, B. and Unger, János and Gál, Tamás Mátyás and Sümeghy, Zoltán and Geiger, János and Szegedi, Sándor (2009) Simulation of the mean urban heat island using 2D surface parameters: empirical modeling, verification and extension. METEOROLOGICAL APPLICATIONS, 16. pp. 275-287. ISSN 1350-4827

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Abstract

The spatial distribution of the annual mean urban heat island (UHI) intensity was simulated applying empirical models based on datasets from urban areas of Szeged and Debrecen, using simple and easily determinable urban surface cover variables. These two cities are situated on the Alf¨old (Great Hungarian Plain) and have similar topographic and climatic conditions. Temperature field measurements were carried out, Landsat satellite images were evaluated, and then one- and multiple variable models were constructed using linear regression techniques. The selected multiple-parameter models were verified using independent datasets from three urban settlements. In order to obtain some impression of the mean UHI patterns in other cities with no temperature measurements available, the better model was extended to urban areas of four other cities situated in geographical environments similar to Szeged and Debrecen. The main shortcoming of typical empirical models, namely that they are often restricted to a specific location, is overcome by the obtained model since it is not entirely site but more region specific, and valid in a large and densely populated area with several settlements.

Item Type: Article
Uncontrolled Keywords: mean urban heat island; satellite images; NDVI; urban surface cover parameters; geoinformatic methods; multiple-variable linear regression; empirical model equation; verification; extension
Subjects: G Geography. Anthropology. Recreation / földrajz, antropológia, kikapcsolódás > GE Environmental Sciences / környezettudomány
SWORD Depositor: MTMT SWORD
Depositing User: MTMT SWORD
Date Deposited: 17 Mar 2014 20:12
Last Modified: 17 Mar 2014 20:12
URI: http://real.mtak.hu/id/eprint/10936

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