Heat exposure variations and mitigation in a densely populated neighborhood during a hot day: Towards a people-oriented approach to urban climate management
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F23%3A00573792" target="_blank" >RIV/68378289:_____/23:00573792 - isvavai.cz</a>
Alternative codes found
RIV/67985807:_____/23:00573792 RIV/60460709:41330/23:97745 RIV/61989592:15310/23:73622100
Result on the web
<a href="https://dx.doi.org/10.1016/j.buildenv.2023.110564" target="_blank" >https://dx.doi.org/10.1016/j.buildenv.2023.110564</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.buildenv.2023.110564" target="_blank" >10.1016/j.buildenv.2023.110564</a>
Alternative languages
Result language
angličtina
Original language name
Heat exposure variations and mitigation in a densely populated neighborhood during a hot day: Towards a people-oriented approach to urban climate management
Original language description
Climate change and increasing urbanization call for the effective adaptation of cities to extreme heat. To improve the applicability of the research, sophisticated computational fluid dynamics models are being developed to capture the complexity of climate in a real urban environment, while a human-oriented paradigm is emerging concurrently. In this paper we present a synergy of these approaches by analyzing outdoor thermal exposure on five different pedestrian routes in Prague-Dejvice (Czech Republic), employing the PALM modeling system and realistic use-cases. Our simulations reveal important spatio-temporal variability in the Universal Thermal Climate Index (UTCI) in the urban neighborhood. Our findings particularly emphasize the negative effect of open spaces, such as gaps between buildings and shorter buildings, on the thermal exposure of pedestrians. These configurations allow more direct irradiation to reach ground level, while the other adverse climatic characteristics of midrise/highrise developments are largely preserved. The effect of urban greenery is quite variable during the day. Trees can reduce UTCI by up to 10 °C, but this strongly depends on the location (e.g., distance from neighboring buildings). Irrigated grass reduces UTCI by about 1.8 °C, but dried grass has little heat mitigation effect. In conclusion, our results suggest that expert-based knowledge together with sophisticated and fine-scale models can identify effective heat stress reduction measures without draconian changes to, or investments in, the urban environment.
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/TO01000219" target="_blank" >TO01000219: Turbulent-resolving urban modeling of air quality and thermal comfort</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Building and Environment
ISSN
0360-1323
e-ISSN
1873-684X
Volume of the periodical
242
Issue of the periodical within the volume
15 August 2023
Country of publishing house
GB - UNITED KINGDOM
Number of pages
17
Pages from-to
110564
UT code for WoS article
001147283500001
EID of the result in the Scopus database
2-s2.0-85164997416