Spatial Variation of Thermal Conditions in Athens Metropolitan Area, Greece

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Abstract
Climate change raises concerns over the sustainability of the outdoor thermal environment and its impacts on societies. This study aims to examine the thermal conditions in Athens metropolitan area, Greece. Hourly data from 15 stations of the Automatic Weather Station Network of the National Observatory of Athens (2010–2021) were used to estimate the Net Effective Temperature (NET) and the Universal Thermal Climate Index (UTCI). The NET and UTCI were higher within the Athens basin (NET: mean ± sd = 15.3 ± 7.1 °C; UTCI: mean ± sd = 18.9 ± 10.4 °C) than in the surrounding area (NET: mean ± sd = 11.2 ± 9.3 °C; UTCI: mean ± sd = 13.4 ± 13.4 °C; p < 0.001). The highest numbers of hours with unfavorable warm conditions were found in Faliro (28.6%, NET; 27.7%, UTCI), Neos Kosmos (28.6%, NET; 27.4%, UTCI) and Patissia (28.6%, NET; 27.2%, UTCI). With respect to unfavorable cool conditions, the highest number was in Spata (65.1%, NET; 28.4%, UTCI).
Funding Information
  • European Climate Foundation (G-2212-65296)