“…The UHI phenomenon is studied primarily from an urban perspective, focussing on intra-urban relations between temperatures and the structure or composition of the city. Investigated are the effects of different surfaces on the urban climate, considering impervious surface area (Lee & French, 2009;Yuan & Bauer, 2007;Zhang, Zhong, Wang, & Cheng, 2009), parks and green spaces (Cao, Onishi, Chen, & Imura, 2010;Lee, Lee, Jin, & Song, 2009;Papangelis, Tombrou, Dandou, & Kontos, 2012;Zhang, Zhong, Feng, & Wang, 2009b) or water bodies (Steeneveld, Koopmans, Heusinkveld, & Theeuwes, 2014;Sun & Chen, 2012), as well as the spatial pattern of land cover (Connors, Galletti, & Chow, 2013;Mallick, Rahman, & Singh, 2013), the built-up density (Alcoforado, Andrade, Lopes, & Vasconcelos, 2009;Dobrovolny, 2013;Svensson & Eliasson, 2002), the vertical structure (Saaroni, Ben-Dor, Bitan, & Potchter, 2000;Unger, 2006), or the climatic differences related to urban districts, residential parcels and socio-economic conditions (Buyantuyev & Wu, 2010;Eliasson & Svensson, 2003;Klok, Zwart, Verhagen, & Mauri, 2012;Stone & Norman, 2006). Most of these studies refer to single major cities, e.g.…”