Evaluation of Absolute Maximum Urban Heat Island Intensity Based on a Simplified Remote Sensing Approach

• DOI: 10.1089/ees.2021.0160
• Publication Date: 2021-08-27T15:49:18Z
• Authors: Valentino Sangiorgio; Alessandra Capolupo; Eufemia Tarantino; Francesco Fiorito; Mattheos Santamouris
• Keywords: Urban Heat Island; Intensity; Albedo (alchemy)

The Urban Heat Island (UHI) phenomenon can be harmful during the summer season jeopardizing safety of some vulnerable population classes. Typically, study UHI requires long data acquisitions using weather stations widely distributed within cities. To this aim, recent research proposed multicriteria approaches aimed at quantifying hazard absolute maximum Intensity (UHII), in urban districts. On contrary, these are time consuming and involve a large number parameters. This article proposes simplified multiparametric approach based on three principal parameters involved (albedo, greenery, anthropogenic heat) obtained by refined remote sensing acquisition. In comparison with other approaches, method is simpler quick to apply while maintaining good precision. Moreover, calibration achieved exploiting real max UHII set 41 European districts validation another already validated literature. Both applied 96 Berlin. results show that procedure keep an average error less than 1°C but improving applicability.