Computing continuous sky view factors using 3D urban raster and vector databases: Comparison and application to urban climate

Tamás Gál, F. Lindberg, J. Unger

Research output: Contribution to journalArticle

106 Citations (Scopus)

Abstract

The use of high resolution 3D urban raster and vector databases in urban climatology is presented. It applies two different methods to the calculation of continuous sky view factors (SVF), compares their values and considers their usefulness and limitations in urban climate studies. It shows and evaluates the relationship between urban geometry, quantified by SVF, and intra-urban nocturnal temperature variations using areal means in the whole urban area of Szeged, a city located in southeast Hungary. Results from the vector and raster models shows similar SVF values (r2 = 0.9827). The usefulness of using areal means in SVF-temperature relations is confirmed. The vector and the raster approaches to the derivation of areal means of SVF are both shown to be powerful tools to obtain a general picture of the geometrical conditions of an urban environment.

Original languageEnglish
Pages (from-to)111-123
Number of pages13
JournalTheoretical and Applied Climatology
Volume95
Issue number1-2
DOIs
Publication statusPublished - 2009

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urban climate
raster
climatology
urban area
temperature
geometry
comparison

ASJC Scopus subject areas

  • Atmospheric Science

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Computing continuous sky view factors using 3D urban raster and vector databases : Comparison and application to urban climate. / Gál, Tamás; Lindberg, F.; Unger, J.

In: Theoretical and Applied Climatology, Vol. 95, No. 1-2, 2009, p. 111-123.

Research output: Contribution to journalArticle

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