Towards climate-responsible tree positioning: Detailed effects of trees on heat exposure in complex urban environments
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F24%3A00598637" target="_blank" >RIV/86652079:_____/24:00598637 - isvavai.cz</a>
Alternative codes found
RIV/67985807:_____/24:00598637 RIV/00216224:14310/24:00137342 RIV/00216208:11320/24:10489838 RIV/61989592:15310/24:73627567
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S161886672400298X?dgcid=author" target="_blank" >https://www.sciencedirect.com/science/article/pii/S161886672400298X?dgcid=author</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ufug.2024.128500" target="_blank" >10.1016/j.ufug.2024.128500</a>
Alternative languages
Result language
angličtina
Original language name
Towards climate-responsible tree positioning: Detailed effects of trees on heat exposure in complex urban environments
Original language description
Increasing heat in urban environments has recently become one of the most dangerous climate hazards due to its adverse impacts on urban populations. Implementing street-level trees could be an effective strategy to mitigate pedestrian heat exposure, particularly due to their ability to block incoming solar radiation. In this study, the PALM model system was applied to simulate the effects of a tree canopy and its location on heat exposure, as quantified by the Universal Thermal Climate Index (UTCI), during a heat wave, using the example of Prague-Dejvice, Czech Republic. Our results show that trees reduce the UTCI under their canopy by 3.5 degree celsius on average, with the greatest UTCI reduction in open spaces during mornings and afternoons. High spatio-temporal variations in the reduction of UTCI by a tree canopy were observed in the study domain, especially in street canyons and courtyards. The effectiveness of trees in mitigating heat exposure was found to be closely related to their individual location with respect to surrounding buildings, specifically: (i) the distance from the nearest building, (ii) the height of the nearest building, and (iii) the azimuthal angle of the vector from the nearest building towards the tree. Model simulations indicate that a particularly small reduction in UTCI (about 2.5 degree celsius less than the mean) can be found under trees located in the shade of taller buildings that are within a few metres and between southwest and southeast of the trees. Our findings illustrate that tree positioning in cities should be undertaken carefully and thoughtfully so that the presence of trees effectively improves thermal comfort and urban quality of life.
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
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Urban Forestry & Urban Greening
ISSN
1618-8667
e-ISSN
1610-8167
Volume of the periodical
101
Issue of the periodical within the volume
NOV
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
17
Pages from-to
128500
UT code for WoS article
001312170900001
EID of the result in the Scopus database
2-s2.0-85203443656