A multiscale outlook of the heat islands phenomenon in the Milan area

Titolo Rivista TERRITORIO
Autori/Curatori Nicola Colaninno
Anno di pubblicazione 2025 Fascicolo 2024/108-109
Lingua Inglese Numero pagine 12 P. 261-272 Dimensione file 707 KB
DOI 10.3280/TR2024-108025
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Urban heat island (uhi) phenomenon, intensified by climate change, challenges cities and affects public health and well-being. This study explores the uhi in Milan from a multiscale perspective – regional, urban, and intra-urban – highlighting the impact of land use, urban morphology, and vegetation on temperature patterns. On the regional scale, the study identifies a heat island effect that is particularly responsive to variations in land cover. City-wide analysis shows the uhi intensity reaching up to 3.0°C at night. The intra-urban analysis reveals how urban geometry and vegetation shape the microclimate and reduce heat stress. The findings advocate for scalespecific urban planning strategies, emphasizing green infrastructure and climate-resilient designs to alleviate uhi effects.

Il fenomeno Isola di calore urbana (uhi), acuito dal cambiamento climatico, pone grandi sfide per le città, incidendo su salute pubblica e benessere. Questo studio analizza l’uhi a Milano su più scale – regionale, urbana e intra-urbana – mettendo in luce come uso del suolo, morfologia urbana e vegetazione influenzino i modelli di temperatura. A livello regionale, si osserva un effetto isole di calore particolarmente sensibile alle variazioni di copertura del suolo. In ambito urbano, l’intensità dell’uhi può arrivare fino a 3,0°C di notte. A livello intra-urbano, la geometria e la presenza di alberi modellano il microclima e riducono lo stress termico. I risultati sostengono strategie di pianificazione su misura, basate su infrastrutture verdi e progettazione resiliente al clima.

Parole chiave:isole di calore; pianificazione urbana; resilienza climatica

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Nicola Colaninno, A multiscale outlook of the heat islands phenomenon in the Milan area in "TERRITORIO" 108-109/2024, pp 261-272, DOI: 10.3280/TR2024-108025