Urban Imperviousness Effects on Summer Surface Temperatures Nearby Residential Buildings in Different Urban Zones of Parma

Remote Sensing

Simone Orlandini¹  Luca Congedo²  Michele Zazzi³  Patrizia Rota³  Marco Morabito⁴  Alfonso Crisci⁴  Teodoro Georgiadis⁴  Michele Munafò⁵ 

[1] Centre of Bioclimatology, University of Florence, 50144 Florence, Italy;Department of Architecture and Design (DiAP), Sapienza University of Rome, 00185 Rome, Italy;Department of Engineering and Architecture (DIA), 43124 Parma, Italy;Institute of Biometeorology, National Research Council, 50145 Florence, Italy;Italian National Institute for Environmental Protection and Research (ISPRA), 00144 Rome, Italy;

关键词: thermal infrared images;    urban heat island;    soil sealing;    city;    park;    green areas;    rural;    heat;   

DOI  :  10.3390/rs10010026

来源: DOAJ

【 摘 要 】

Rapid and unplanned urban growth is responsible for the continuous conversion of green or generally natural spaces into artificial surfaces. The high degree of imperviousness modifies the urban microclimate and no studies have quantified its influence on the surface temperature (ST) nearby residential building. This topic represents the aim of this study carried out during summer in different urban zones (densely urbanized or park/rural areas) of Parma (Northern Italy). Daytime and nighttime ASTER images, the local urban cartography and the Italian imperviousness databases were used. A reproducible/replicable framework was implemented named “Building Thermal Functional Area” (BTFA) useful to lead building-proxy thermal analyses by using remote sensing data. For each residential building (n = 8898), the BTFA was assessed and the correspondent ASTER-LST value (ST_BTFA) and the imperviousness density were calculated. Both daytime and nighttime ST_BTFA significantly (p < 0.001) increased when high levels of imperviousness density surrounded the residential buildings. These relationships were mostly consistent during daytime and in densely urbanized areas. ST_BTFA differences between urban and park/rural areas were higher during nighttime (above 1 °C) than daytime (about 0.5 °C). These results could help to identify “urban thermal Hot-Spots” that would benefit most from mitigation actions.

【 授权许可】

Unknown