High-resolution modelling of thermal exposure during a hot spell: A case study using PALM-4U in Prague, Czech Republic
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985807%3A_____%2F21%3A00538817" target="_blank" >RIV/67985807:_____/21:00538817 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/21:73609402
Result on the web
<a href="http://dx.doi.org/10.3390/atmos12020175" target="_blank" >http://dx.doi.org/10.3390/atmos12020175</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/atmos12020175" target="_blank" >10.3390/atmos12020175</a>
Alternative languages
Result language
angličtina
Original language name
High-resolution modelling of thermal exposure during a hot spell: A case study using PALM-4U in Prague, Czech Republic
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10509 - Meteorology and atmospheric sciences
Result continuities
Project
<a href="/en/project/UH0383" target="_blank" >UH0383: Urbanization of weather forecast, air-quality prediction and climate scenarios for Prague</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Atmosphere
ISSN
2073-4433
e-ISSN
2073-4433
Volume of the periodical
12
Issue of the periodical within the volume
2
Country of publishing house
CH - SWITZERLAND
Number of pages
29
Pages from-to
175
UT code for WoS article
000622142500001
EID of the result in the Scopus database
2-s2.0-85100656674