{"id":3104,"date":"2025-06-26T15:03:31","date_gmt":"2025-06-26T13:03:31","guid":{"rendered":"https:\/\/urbag.eu\/?p=3104"},"modified":"2025-06-26T15:03:31","modified_gmt":"2025-06-26T13:03:31","slug":"new-preprint-adapting-urban-areas-to-rising-temperatures-strategies-to-reduce-heat-and-vulnerability-in-a-warming-world","status":"publish","type":"post","link":"https:\/\/webs.uab.cat\/atmosphere\/2025\/06\/26\/new-preprint-adapting-urban-areas-to-rising-temperatures-strategies-to-reduce-heat-and-vulnerability-in-a-warming-world\/","title":{"rendered":"New preprint: Adapting Urban Areas to Rising Temperatures: Strategies to Reduce Heat and Vulnerability in a Warming World"},"content":{"rendered":"

A new paper has been posted as a preprint on the Research Square platform.<\/p>\n

See full article\/ Veure l’article complet<\/strong><\/a><\/p>\n

 <\/p>\n

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

The need for cities to prepare for the increasing frequency, persistence, and intensity of heat waves (HWs) makes modeling these events essential for evaluating the effectiveness of heat adaptation strategies. We use the Pseudo Global Warming (PGW) method to project HW episodes that are simulated with the Weather Research and Forecasting (WRF) model coupled with the Building Effect Parameterization and Building Energy Model at 1 km resolution using the Metropolitan Area of Barcelona (AMB) as a case study. We assess three plausible urban adaptation strategies to reduce temperatures and vulnerability to heat now and in mid- and late- 21st century conditions under the SSP370 radiative forcing scenario: 1) increasing rooftop albedo by white-painting all feasible rooftops; 2) implementing irrigated sedum green roofs where possible; and 3) increasing peri-urban agriculture, urban parks, and urban fraction while reducing urban forest according to the recently approved Urban Master Plan. We find that (1) provides the greatest cooling (\u20131.75\u00baC during daytime) in the most vulnerable areas, while (2) and (3) show moderate regulation (\u20130.37\u00baC and \u20130.26\u00baC respectively) and slight nighttime warming (0.24\u00baC and 0.31\u00baC). Despite these reductions, none fully counterbalance the projected 6\u00baC increase by 2100, highlighting the limited capacity of adaptation strategies under severe warming scenarios and providing critical insights into effective and feasible measures to mitigate heat impacts and reduce vulnerability in urban environments.<\/p>\n

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

La necessitat que tenen les ciutats de preparar-se per a l\u2019increment de la freq\u00fc\u00e8ncia, persist\u00e8ncia i intensitat de les onades de calor (HW) fa que la modelitzaci\u00f3 d\u2019aquests esdeveniments sigui essencial per avaluar l\u2019efectivitat de les estrat\u00e8gies d\u2019adaptaci\u00f3 a la calor. Fem servir el m\u00e8tode Pseudo Global Warming<\/em> (PGW) per projectar episodis d’HW simulats amb el model Weather Research and Forecasting<\/em> (WRF), acoblat amb la parametritzaci\u00f3 dels efectes dels edificis (Building Effect Parameterization<\/em>) i el model energ\u00e8tic dels edificis (Building Energy Model<\/em>), a una resoluci\u00f3 d\u20191 km, prenent l\u2019\u00c0rea Metropolitana de Barcelona (AMB) com a cas d\u2019estudi. Avaluem tres estrat\u00e8gies urbanes d\u2019adaptaci\u00f3 plausibles per reduir les temperatures i la vulnerabilitat a la calor actualment i sota condicions de mitjans i finals del segle XXI segons l\u2019escenari de for\u00e7ament radiatiu SSP370: 1) augmentar l\u2019albedo de les cobertes mitjan\u00e7ant la pintura blanca de totes les teulades viables; 2) implementar cobertes verdes de sedum<\/em> amb reg all\u00e0 on sigui possible; i 3) augmentar l\u2019agricultura periurbana, els parcs urbans i la fracci\u00f3 urbana, alhora que es redueix el bosc urb\u00e0, segons el recentment aprovat Pla Director Urban\u00edstic. Trobem que l\u2019estrat\u00e8gia (1) proporciona el major refredament (\u20131,75\u202f\u00b0C durant el dia) a les zones m\u00e9s vulnerables, mentre que les estrat\u00e8gies (2) i (3) mostren una regulaci\u00f3 moderada (\u20130,37\u202f\u00b0C i \u20130,26\u202f\u00b0C respectivament) i un lleuger escalfament nocturn (0,24\u202f\u00b0C i 0,31\u202f\u00b0C). Tot i aquestes reduccions, cap de les estrat\u00e8gies compensa completament l\u2019increment projectat de 6\u202f\u00b0C per a l\u2019any 2100, fet que posa en relleu la capacitat limitada de les mesures d\u2019adaptaci\u00f3 sota escenaris d\u2019escalfament sever, i ofereix informaci\u00f3 clau sobre mesures eficaces i factibles per mitigar els impactes de la calor i reduir la vulnerabilitat en entorns urbans.<\/p>\n

 <\/p>\n

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Figure: Graphical abstract summarizing the complete process of the study.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Title: Adapting urban areas to rising temperatures: strategies to reduce heat and vulnerability in a warming world \/
\nThe need for cities to prepare for the increasing frequency, persistence, and intensity of heat waves (HWs) makes modeling these events essential for evaluating the effectiveness of heat adaptation strategies in the near future.<\/p>\n","protected":false},"author":3153,"featured_media":2920,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[427,7,16,157,100,60,428,429,430,61,62],"class_list":["post-3104","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","tag-adaptation","tag-amb","tag-barcelona","tag-climate","tag-heat-wave","tag-heatwave","tag-mitigation-urban-master-plan","tag-pgw","tag-strategies","tag-vulnerability","tag-wrf"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/3104","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=3104"}],"version-history":[{"count":0,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/posts\/3104\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media\/2920"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/media?parent=3104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/categories?post=3104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webs.uab.cat\/atmosphere\/wp-json\/wp\/v2\/tags?post=3104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}