Počet záznamů: 1
Using clustering to understand intra-city warming in heatwaves: insights into Paris, Montreal, and Zurich
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SYSNO ASEP 0586698 Druh ASEP J - Článek v odborném periodiku Zařazení RIV Záznam nebyl označen do RIV Poddruh J Článek ve WOS Název Using clustering to understand intra-city warming in heatwaves: insights into Paris, Montreal, and Zurich Tvůrce(i) Zhao, Y. (CH)
Strebel, D. (CH)
Derome, D. (CA)
Esau, I. (NO)
Li, Q. (US)
Carmeliet, J. (CH)Číslo článku 064002 Zdroj.dok. Environmental Research Letters. - : Institute of Physics Publishing - ISSN 1748-9326
Roč. 19, May 2024 (2024)Poč.str. 12 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova clustering ; intra-city warming ; heatwaves ; ground storage flux ; hysteresis loop Obor OECD Meteorology and atmospheric sciences CEP TO01000219 GA TA ČR - Technologická agentura ČR Způsob publikování Open access UT WOS 001218737400001 EID SCOPUS 85193215925 DOI https://doi.org/10.1088/1748-9326/ad456f Překlad anotace We introduce a novel methodological advancement by clustering paired near-surface air temperature with the planetary boundary layer height to characterize intra-city clusters for analytics. To illustrate this approach, we analyze three heatwaves (HWs): the 2019 HW in Paris, the 2018 HW in Montreal, and the 2017 HW in Zurich. We assess cluster-based characteristics before, during, and after heatwave events. While the urban clusters identified by this clustering align well with built-up areas obtained from the Moderate Resolution Imaging Spectroradiometer (MODIS) land cover data, additional local hot spots spanning several kilometers can also be recognized, extending outside the built-up areas. Using the objective hysteresis model, we further determine the overall strength coefficient of the hysteresis loop between ground storage flux and all-wave downward radiative flux, ranging from 0.414 to 0.457 for urban clusters and from 0.126 to 0.157 for rural clusters during the heatwave periods. Across all cities, we observe a consistent refueling-restoration mode in the cumulative ground heat flux as the heatwaves progress. Future developments of this proposed two-component clustering approach, with the integration of more influential physics and advances in spatial and temporal resolutions, will offer a more comprehensive characterization of cities for urban climate analytics. Pracoviště Ústav informatiky Kontakt Tereza Šírová, sirova@cs.cas.cz, Tel.: 266 053 800 Rok sběru 2025 Elektronická adresa https://doi.org/10.1088/1748-9326/ad456f
Počet záznamů: 1