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Remote Sens. 2018, 10(1), 26; doi:10.3390/rs10010026

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

1
Institute of Biometeorology, National Research Council, 50145 Florence, Italy
2
Centre of Bioclimatology, University of Florence, 50144 Florence, Italy
3
Department of Agrifood Production and Environmental Sciences, University of Florence, 50144 Florence, Italy
4
Italian National Institute for Environmental Protection and Research (ISPRA), 00144 Rome, Italy
5
Department of Architecture and Design (DiAP), Sapienza University of Rome, 00185 Rome, Italy
6
Department of Engineering and Architecture (DIA), 43124 Parma, Italy
*
Author to whom correspondence should be addressed.
Received: 25 October 2017 / Revised: 14 December 2017 / Accepted: 21 December 2017 / Published: 24 December 2017
(This article belongs to the Special Issue Remote Sensing of Urban Agriculture and Land Cover)
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Abstract

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. View Full-Text
Keywords: thermal infrared images; urban heat island; soil sealing; city; park; green areas; rural; heat thermal infrared images; urban heat island; soil sealing; city; park; green areas; rural; heat
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Morabito, M.; Crisci, A.; Georgiadis, T.; Orlandini, S.; Munafò, M.; Congedo, L.; Rota, P.; Zazzi, M. Urban Imperviousness Effects on Summer Surface Temperatures Nearby Residential Buildings in Different Urban Zones of Parma. Remote Sens. 2018, 10, 26.

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