Počet záznamů: 1
High-resolution modelling of thermal exposure during a hot spell: A case study using PALM-4U in Prague, Czech Republic
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SYSNO ASEP 0538817 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název High-resolution modelling of thermal exposure during a hot spell: A case study using PALM-4U in Prague, Czech Republic Tvůrce(i) Geletič, Jan (UIVT-O) RID, ORCID, SAI
Lehnert, Michal (UIVT-O) RID, ORCID, SAI
Krč, Pavel (UIVT-O) SAI, RID, ORCID
Resler, Jaroslav (UIVT-O) SAI, RID, ORCID
Krayenhoff, E. S. (US)Číslo článku 175 Zdroj.dok. Atmosphere. - : MDPI
Roč. 12, č. 2 (2021)Poč.str. 29 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova PALM-4U ; biometeorology ; mean radiant temperature (MRT) ; universal thermal climate index (UTCI) ; large-eddy simulation (LES) ; urban climate Vědní obor RIV DG - Vědy o atmosféře, meteorologie Obor OECD Meteorology and atmospheric sciences CEP UH0383 GA KHP - Hlavní město Praha Způsob publikování Open access Institucionální podpora UIVT-O - RVO:67985807 UT WOS 000622142500001 EID SCOPUS 85100656674 DOI 10.3390/atmos12020175 Anotace The modelling of thermal exposure in outdoor urban environments is a highly topical challenge in modern climate research. This paper presents the results derived from a new micrometeorological model that employs an integrated biometeorology module to model Universal Thermal Climate Index (UTCI). This is PALM-4U, which includes an integrated human body-shape parameterization, deployed herein for a pilot domain in Prague, Czech Republic. The results highlight the key role of radiation in the spatiotemporal variability of thermal exposure in moderate-climate urban areas during summer days in terms of the way in which this directly affects thermal comfort through radiant temperature and indirectly through the complexity of turbulence in street canyons. The model simulations suggest that the highest thermal exposure may be expected within street canyons near the irradiated north sides of east–west streets and near streets oriented north–south. Heat exposure in streets increases in proximity to buildings with reflective paints. The lowest heat exposure during the day may be anticipated in tree-shaded courtyards. The cooling effect of trees may range from 4 °C to 9 °C in UTCI, and the cooling effect of grass in comparison with artificial paved surfaces in open public places may be from 2 °C to 5 °C UTCI. In general terms, this study illustrates that the PALM modelling system provides a new perspective on the spatiotemporal differentiation of thermal exposure at the pedestrian level - it may therefore contribute to more climate-sensitive urban planning. Pracoviště Ústav informatiky Kontakt Tereza Šírová, sirova@cs.cas.cz, Tel.: 266 053 800 Rok sběru 2022 Elektronická adresa http://dx.doi.org/10.3390/atmos12020175
Počet záznamů: 1