DOBROVOLNÝ, Petr and Lukáš KRAHULA. The spatial variability of air temperature and nocturnal urban heat island intensity in the city of Brno, Czech Republic. Moravian Geographical Reports. AV ČR, Institute of Geonics, Czech Academy of Sciences, 2015, vol. 23, No 3, p. 8-16. ISSN 1210-8812. Available from: https://dx.doi.org/10.1515/mgr-2015-0013.
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Basic information
Original name The spatial variability of air temperature and nocturnal urban heat island intensity in the city of Brno, Czech Republic
Authors DOBROVOLNÝ, Petr (203 Czech Republic, guarantor, belonging to the institution) and Lukáš KRAHULA (203 Czech Republic, belonging to the institution).
Edition Moravian Geographical Reports, AV ČR, Institute of Geonics, Czech Academy of Sciences, 2015, 1210-8812.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10500 1.5. Earth and related environmental sciences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.093
RIV identification code RIV/00216224:14310/15:00081151
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1515/mgr-2015-0013
UT WoS 000362230000002
Keywords in English urban heat island; mobile measurements; air temperature; Brno; Czech Republic
Tags AKR, rivok
Changed by Changed by: prof. RNDr. Petr Dobrovolný, CSc., učo 680. Changed: 26/10/2015 12:24.
Abstract
This study seeks to quantify the effects of a number of factors on the nocturnal air temperature field in a medium-sized central European city located in complex terrain. The main data sources consist of mobile air temperature measurements and a geographical database. Temperature measurements were taken along several profiles through the city centre and were made under a clear sky with no advection. Altogether nine sets of detailed measurements, in all seasons, were assembled. Altitude, quantity of vegetation, density of buildings and the structure of the transportation (road) system were considered as explanatory variables. The result is that the normalized difference vegetation index (NDVI) and the density of buildings were the most important factors, each of them explaining a substantial part (more than 50%) of overall air temperature variability. Mobile measurements with NDVI values as a covariate were used for interpolation of air temperature for the entire study area. The spatial variability of nocturnal air temperature and UHI intensity in Brno is the main output presented. Air temperatures interpolated from mobile measurements and NDVI values indicate that the mean urban heat island (UHI) intensity in the early night in summer is at its highest (approximately 5 degrees C) in the city centre and decreases towards the suburban areas.
Links
GA205/09/1297, research and development projectName: Víceúrovňová analýza městského a příměstského klimatu na příkladu středně velkých měst
Investor: Czech Science Foundation, Multilevel analysis of the urban and suburban climate taking medium-sized towns as an example
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