Microclimate Evaluation of the Hradec Králové City using HUMIDEX
| Autor: | Tomáš Litschmann, Petr Salaš, Jaroslav Rožnovský, Marie Horká, Tomáš Středa, Hana Středová |
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| Rok vydání: | 2017 |
| Předmět: |
lcsh:QB275-343
010504 meteorology & atmospheric sciences Environment analysis lcsh:Geodesy lcsh:QC801-809 Microclimate city urban heat island green areas humidex discomfort hradec králov´é 010501 environmental sciences 01 natural sciences lcsh:Geophysics. Cosmic physics Geophysics Environmental science Humidex Physical geography Urban heat island Urban environment 0105 earth and related environmental sciences |
| Zdroj: | Contributions to Geophysics and Geodesy, Vol 47, Iss 3, Pp 231-246 (2017) |
| ISSN: | 1338-0540 |
| DOI: | 10.1515/congeo-2017-0012 |
| Popis: | Urban environment differs from the surrounding landscape in terms of the values of meteorological parameters. This is often referred to as the urban heat island (UHI), which in simple terms means higher air temperatures in cities. The cause of these changes lies in the different active surfaces in cities, which subsequently results in a different radiation balance. The higher temperatures, however, also affect the living conditions in the city and during very high temperature periods can have negative effects on the health of the city inhabitants. The results presented in this paper are based on measurements taken over several years at locations near Hradec Králové, which is surrounded by different surface areas. Environment analysis was performed using the Humidex index. The obtained results show that replacing green areas with built-up areas affects temperatures in the city, when air temperatures are very high they significantly increase the discomfort of the inhabitants. Differences in the frequency of discomfort levels are observed especially during periods of high temperatures, at lower temperatures these differences are not significant. Higher frequencies of discomfort are observed at locations with artificial surfaces (asphalt, cobblestones, concrete) and in closed spaces. In contrast, locations with lots of green areas almost always have the value of this index lower or more balanced. The results should therefore be a valid argument for maintaining and extending green areas in cities. |
| Databáze: | OpenAIRE |
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