Exacerbated heat in large Canadian cities

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dc.contributor.author
Rajulapati, Chandra Rupa
Gaddam, Rohan Kumar
Nerantzaki, Sofia D.
Papalexiou, Simon Michael
Cannon, Alex J.
Clark, Martyn P.
dc.date.accepted
2022-01-17
dc.date.accessioned
2024-05-13T18:30:04Z
dc.date.available
2024-05-13T18:30:04Z
dc.date.issued
2022-02-12
dc.date.submitted
2021-10-15
dc.description.abstract - en
Extreme temperature is a major threat to urban populations; thus, it is crucial to understand future changes to plan adaptation and mitigation strategies. We assess historical and CMIP6 projected trends of minimum and maximum temperatures for the 18 most populated Canadian cities. Temperatures increase (on average 0.3◦C/decade) in all cities during the historical period (1979–2014), with Prairie cities exhibiting lower rates (0.06◦C/decade). Toronto (0.5◦C/decade) and Montreal (0.7◦C/decade) show high increasing trends in the observation period. Higher-elevation cities, among those with the same population, show slower increasing temperature rates compared to the coastal ones. Projections for cities in the Prairies show 12% more summer days compared to the other regions. The number of heat waves (HWs) increases for all cities, in both the historical and future periods; yet alarming increases are projected for Vancouver, Victoria, and Halifax from no HWs in the historical period to approximately 4 HWs/year on average, towards the end of 2100 for the SSP5–8.5. The cold waves reduce considerably for all cities in the historical period at a rate of 2 CWs/decade on average and are projected to further reduce by 50% compared to the observed period.
dc.identifier.issn
2212-0955
dc.identifier.uri
https://open-science.canada.ca/handle/123456789/2496
dc.language.iso
en
dc.publisher
Elsevier
dc.relation.isreplacedby
https://doi.org/10.1016/j.uclim.2022.101097
dc.rights - en
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.rights - fr
Creative Commons Attribution - Pas d'utilisation commerciale - Pas de modification 4.0 International (CC BY-NC-ND 4.0)
dc.rights.openaccesslevel - en
Green
dc.rights.openaccesslevel - fr
Vert
dc.rights.uri - en
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.uri - fr
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.fr
dc.subject - en
Nature and environment
Science and technology
Climate
dc.subject - fr
Nature et environnement
Sciences et technologie
Climat
dc.subject.en - en
Nature and environment
Science and technology
Climate
dc.subject.fr - fr
Nature et environnement
Sciences et technologie
Climat
dc.title - en
Exacerbated heat in large Canadian cities
dc.type - en
Accepted manuscript
dc.type - fr
Manuscrit accepté
local.acceptedmanuscript.articlenum
101097
local.article.journaltitle
Urban Climate
local.article.journalvolume
42
local.pagination
20 pages
local.peerreview - en
Yes
local.peerreview - fr
Oui
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