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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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