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Heat Waves Amplify the Urban Canopy Heat Island in Brno, Czechia
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SYSNO ASEP 0570057 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Heat Waves Amplify the Urban Canopy Heat Island in Brno, Czechia Tvůrce(i) Janků, Zdeněk (UEK-B)
Dobrovolný, Petr (UEK-B) RID, ORCID, SAIZdroj.dok. Meteorology
Roč. 1, č. 4 (2022), s. 477-494Poč.str. 18 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova mean ; maximum and minimum daily temperatures ; heat waves heat magnitude ; urban heat island ; heat magnitude ; brno ; czechia Vědní obor RIV DG - Vědy o atmosféře, meteorologie Obor OECD Climatic research CEP EF16_019/0000797 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UEK-B - RVO:86652079 DOI 10.3390/meteorology1040030 Anotace This study used homogenised mean, maximum, and minimum daily temperatures from 12 stations located in Brno, Czechia, during the 2011–2020 period to analyse heat waves (HW) and their impact on the canopy urban heat island (UHI). HWs were recognized as at least three consecutive days with Tx ≥ 30 °C and urban–rural and intra-urban differences in their measures were analysed. To express the HWs contribution to UHI, we calculated the UHI intensities (UHII) separately during and outside of HWs to determine the heat magnitude (HM). Our results show that all HW measures are significantly higher in urban areas. UHII is mostly positive, on average 0.65 °C,however, day-time UHII is clearly greater (1.93 °C). Furthermore, day-time UHII is amplified during HWs, since HM is on average almost 0.5 °C and in LCZ 2 it is even 0.9 °C. Land use parameters correlate well with UHII and HM at night, but not during the day, indicating that other factors can affect the air temperature extremity. Considering a long-term context, the air temperature extremity has been significantly increasing recently in the region, together with a higher frequency of circulation types that favour the occurrence of HWs, and the last decade mainly contributed to this increase. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2023 Elektronická adresa https://www.mdpi.com/2674-0494/1/4/30
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