Number of the records: 1
Heat exposure variations and mitigation in a densely populated neighborhood during a hot day: Towards a people-oriented approach to urban climate management
- 1.
SYSNO ASEP 0573792 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Heat exposure variations and mitigation in a densely populated neighborhood during a hot day: Towards a people-oriented approach to urban climate management Author(s) Geletič, Jan (UIVT-O) RID, ORCID, SAI
Lehnert, M. (CZ)
Resler, Jaroslav (UIVT-O) SAI, RID, ORCID
Krč, Pavel (UIVT-O) SAI, RID, ORCID
Bureš, Martin (UIVT-O) SAI, ORCID
Urban, Aleš (UFA-U) RID, ORCID
Krayenhoff, E. S. (CA)Article number 110564 Source Title Building and Environment. - : Elsevier - ISSN 0360-1323
Roč. 242, 15 August 2023 (2023)Number of pages 17 s. Publication form Online - E Language eng - English Country GB - United Kingdom Keywords Urban greenery ; Universal thermal climate index (UTCI) ; Thermal comfort ; Biometeorology ; PALM ; Pedestrian OECD category Meteorology and atmospheric sciences R&D Projects TO01000219 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Research Infrastructure e-INFRA CZ - 90140 - CESNET, zájmové sdružení právnických osob Method of publishing Open access Institutional support UIVT-O - RVO:67985807 ; UFA-U - RVO:68378289 UT WOS 001147283500001 EID SCOPUS 85164997416 DOI 10.1016/j.buildenv.2023.110564 Annotation 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. Workplace Institute of Computer Science Contact Tereza Šírová, sirova@cs.cas.cz, Tel.: 266 053 800 Year of Publishing 2024 Electronic address https://dx.doi.org/10.1016/j.buildenv.2023.110564
Number of the records: 1