{"id":967,"date":"2021-02-04T11:43:26","date_gmt":"2021-02-04T09:43:26","guid":{"rendered":"https:\/\/urbag.eu\/?p=967"},"modified":"2021-02-04T11:43:26","modified_gmt":"2021-02-04T09:43:26","slug":"publication-in-natural-hazards-and-earth-system-sciences","status":"publish","type":"post","link":"https:\/\/webs.uab.cat\/atmosphere\/2021\/02\/04\/publication-in-natural-hazards-and-earth-system-sciences\/","title":{"rendered":"Publication in Natural Hazards and Earth System Sciences"},"content":{"rendered":"

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See full article\/ Veure l’article complet:<\/strong> https:\/\/doi.org\/10.5194\/nhess-21-375-2021<\/a><\/p>\n

English:<\/strong><\/p>\n

Trends of extreme-temperature episodes in cities are increasing (in frequency, magnitude and duration) due to regional climate change in interaction with urban effects. Urban morphologies and thermal properties of the materials used to build them are factors that influence spatial and temporal climate variability and are one of the main reasons for the climatic singularity of cities. This paper presents a methodology to evaluate the urban and peri-urban effect on extreme-temperature exposure in Barcelona (Spain), using the Local Climate Zone (LCZ) classification as a basis, which allows a comparison with other cities of the world characterised using this criterion. LCZs were introduced as input of the high-resolution UrbClim model (100\u2009m spatial resolution) to create daily temperature (median and maximum) series for summer (JJA) during the period 1987 to 2016, pixel by pixel, in order to create a cartography of extremes. Using the relationship between mortality due to high temperatures and temperature distribution, the heat exposure of each LCZ was obtained. Methodological results of the paper show the improvement obtained when LCZs were mapped through a combination of two techniques (land cover\u2013land use maps and the World Urban Database and Access Portal Tools \u2013 WUDAPT \u2013 method), and the paper proposes a methodology to obtain the exposure to high temperatures of different LCZs in urban and peri-urban areas. In the case of Barcelona, the distribution of temperatures for the 90th percentile (about 3\u20134\u2009\u2218<\/sup><\/span>C above the average conditions) leads to an increase in the relative risk of mortality of 80\u2009%.<\/p>\n

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Catal\u00e0:<\/strong><\/p>\n

Les tend\u00e8ncies dels episodis de temperatura extrema a les ciutats estan augmentant (en freq\u00fc\u00e8ncia, magnitud i durada) a causa del canvi clim\u00e0tic regional en interacci\u00f3 amb els efectes urbans. Les morfologies urbanes i les propietats t\u00e8rmiques dels materials utilitzats per la construcci\u00f3 s\u00f3n factors que influeixen en la variabilitat clim\u00e0tica espacial i temporal, i s\u00f3n una de les principals raons de la singularitat clim\u00e0tica de les ciutats. Aquest treball presenta una metodologia per avaluar l’efecte urb\u00e0 i periurb\u00e0 sobre l’exposici\u00f3 a temperatures extremes a Barcelona (Espanya), utilitzant com a base la classificaci\u00f3 de les Zones Clim\u00e0tiques Locals (LCZ), que permet comparar amb altres ciutats del m\u00f3n caracteritzades amb aquest criteri. Les LCZ van ser introdu\u00efdes com a entrada del model UrbClim d’alta resoluci\u00f3 (resoluci\u00f3 espacial de 100 m) per crear s\u00e8ries di\u00e0ries de temperatura (mitjana i m\u00e0xima) per a l’estiu (JJA) durant el per\u00edode 1987-2016, p\u00edxel a p\u00edxel, per tal de crear una cartografia d’extrems. Utilitzant la relaci\u00f3 entre mortalitat, a causa de les altes temperatures i la distribuci\u00f3 de la temperatura, es va obtenir l’exposici\u00f3 a la calor de cada LCZ. Els resultats metodol\u00f2gics del treball mostren la millora obtinguda quan les LCZ s\u00f3n cartografiades a trav\u00e9s d’una combinaci\u00f3 de dues t\u00e8cniques (mapes d’\u00fas del s\u00f2l i el m\u00e8tode World Urban Database and Access Portal Tools \u2013 WUDAPT), el document proposa una metodologia per obtenir l’exposici\u00f3 a altes temperatures de diferents LCZ en \u00e0rees urbanes i periurbanes. En el cas de Barcelona, la distribuci\u00f3 de temperatures per al percentil 90 (al voltant del 3-4 \u2218 C per sobre de la temperatura mitjana) comporta un augment del risc relatiu de mortalitat del 80 %.<\/p>\n

 <\/p>\n

\"\"Figure 8\/ Figura 8<\/strong>: Maps of heat exposure index (HEI) for the different probability distributions proposed (P50, P75, P90, P95 and P99)\/ Mapa de l’\u00edndex d’exposici\u00f3 a la calor (HEI) per les diferents distribucions de probabilitat proposades (P50, P75, P90 i P99)<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Trends of extreme-temperature episodes in cities are increasing (in frequency, magnitude and duration) due to regional climate change in interaction with urban effects. Urban morphologies and thermal properties of the materials used to build them are factors that influence.<\/p>\n","protected":false},"author":3153,"featured_media":985,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[7,16,17,18,37,38,39,40,41,42],"class_list":["post-967","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-amb","tag-barcelona","tag-canvi-climatic","tag-climate-change","tag-efecte-dilla-de-calor","tag-escalfament-global","tag-heat-exposure-index","tag-lcz","tag-local-climate-zones","tag-urban-heat-island"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/967","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/users\/3153"}],"replies":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/comments?post=967"}],"version-history":[{"count":0,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/967\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media\/985"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media?parent=967"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/categories?post=967"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/tags?post=967"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}