Diurnal Outdoor Thermal Comfort Mapping through Envi-Met Simulations, Remotely Sensed and In Situ Measurements
Physiological equivalent temperature (PET) is one of most used indices for outdoor human well-being evaluation; its determination is particularly helpful for adaptation strategies in built-up areas affected by the urban heat island (UHI) phenomenon. In this work, we presented a methodology to comput...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/14/4/641 |
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| author | Edoardo Fiorillo Lorenzo Brilli Federico Carotenuto Letizia Cremonini Beniamino Gioli Tommaso Giordano Marianna Nardino |
| author_facet | Edoardo Fiorillo Lorenzo Brilli Federico Carotenuto Letizia Cremonini Beniamino Gioli Tommaso Giordano Marianna Nardino |
| author_sort | Edoardo Fiorillo |
| collection | DOAJ |
| description | Physiological equivalent temperature (PET) is one of most used indices for outdoor human well-being evaluation; its determination is particularly helpful for adaptation strategies in built-up areas affected by the urban heat island (UHI) phenomenon. In this work, we presented a methodology to compute spatially and temporally resolved PET values during a heatwave at the city level, based on a combination of satellite products, in situ measurements and Envi-met model runs upscaled from specific test areas to the broader city. The method exploits the ECOSTRESS sensor to detect surface thermal patterns at different diurnal times by developing an hourly based index called hUHTI (hourly urban heatwave thermal index) that serves as a proxy. A case study on Prato (Italy) municipality during the 2021 summer heatwave events is presented. Based on the available satellite products, a set of six hourly diurnal PET maps at 10 m spatial resolution were derived and daytime outdoor thermal patterns and trends were investigated according to land cover. hUHTI index resulted a more suitable tool as PET proxy compared to the sole ECOSTRESS land surface temperature (LST) product, especially for morning and evening times. Hourly PET maps were summarized by the use of an average exceedance map providing public administrations and stakeholders a synthetic tool for urban regeneration purposes at city scale. |
| first_indexed | 2024-03-11T05:15:15Z |
| format | Article |
| id | doaj.art-9df5a23a7f4b4a5c841f3d3f3d2dd51d |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-11T05:15:15Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-9df5a23a7f4b4a5c841f3d3f3d2dd51d2023-11-17T18:16:44ZengMDPI AGAtmosphere2073-44332023-03-0114464110.3390/atmos14040641Diurnal Outdoor Thermal Comfort Mapping through Envi-Met Simulations, Remotely Sensed and In Situ MeasurementsEdoardo Fiorillo0Lorenzo Brilli1Federico Carotenuto2Letizia Cremonini3Beniamino Gioli4Tommaso Giordano5Marianna Nardino6CNR-IBE, National Research Council of Italy, Institute of Bioeconomy, Via Madonna del Piano 10, 50145 Sesto Fiorentino, ItalyCNR-IBE, National Research Council of Italy, Institute of Bioeconomy, Via Madonna del Piano 10, 50145 Sesto Fiorentino, ItalyCNR-IBE, National Research Council of Italy, Institute of Bioeconomy, Via Madonna del Piano 10, 50145 Sesto Fiorentino, ItalyCNR-IBE, National Research Council of Italy, Institute of Bioeconomy, Via Madonna del Piano 10, 50145 Sesto Fiorentino, ItalyCNR-IBE, National Research Council of Italy, Institute of Bioeconomy, Via Madonna del Piano 10, 50145 Sesto Fiorentino, ItalyCNR-IBE, National Research Council of Italy, Institute of Bioeconomy, Via Madonna del Piano 10, 50145 Sesto Fiorentino, ItalyCNR-IBE, National Research Council of Italy, Institute of Bioeconomy, Via Madonna del Piano 10, 50145 Sesto Fiorentino, ItalyPhysiological equivalent temperature (PET) is one of most used indices for outdoor human well-being evaluation; its determination is particularly helpful for adaptation strategies in built-up areas affected by the urban heat island (UHI) phenomenon. In this work, we presented a methodology to compute spatially and temporally resolved PET values during a heatwave at the city level, based on a combination of satellite products, in situ measurements and Envi-met model runs upscaled from specific test areas to the broader city. The method exploits the ECOSTRESS sensor to detect surface thermal patterns at different diurnal times by developing an hourly based index called hUHTI (hourly urban heatwave thermal index) that serves as a proxy. A case study on Prato (Italy) municipality during the 2021 summer heatwave events is presented. Based on the available satellite products, a set of six hourly diurnal PET maps at 10 m spatial resolution were derived and daytime outdoor thermal patterns and trends were investigated according to land cover. hUHTI index resulted a more suitable tool as PET proxy compared to the sole ECOSTRESS land surface temperature (LST) product, especially for morning and evening times. Hourly PET maps were summarized by the use of an average exceedance map providing public administrations and stakeholders a synthetic tool for urban regeneration purposes at city scale.https://www.mdpi.com/2073-4433/14/4/641physiological equivalent temperaturePEThUHTIhourly urban heatwave thermal indexurban wellnessECOSTRESS |
| spellingShingle | Edoardo Fiorillo Lorenzo Brilli Federico Carotenuto Letizia Cremonini Beniamino Gioli Tommaso Giordano Marianna Nardino Diurnal Outdoor Thermal Comfort Mapping through Envi-Met Simulations, Remotely Sensed and In Situ Measurements Atmosphere physiological equivalent temperature PET hUHTI hourly urban heatwave thermal index urban wellness ECOSTRESS |
| title | Diurnal Outdoor Thermal Comfort Mapping through Envi-Met Simulations, Remotely Sensed and In Situ Measurements |
| title_full | Diurnal Outdoor Thermal Comfort Mapping through Envi-Met Simulations, Remotely Sensed and In Situ Measurements |
| title_fullStr | Diurnal Outdoor Thermal Comfort Mapping through Envi-Met Simulations, Remotely Sensed and In Situ Measurements |
| title_full_unstemmed | Diurnal Outdoor Thermal Comfort Mapping through Envi-Met Simulations, Remotely Sensed and In Situ Measurements |
| title_short | Diurnal Outdoor Thermal Comfort Mapping through Envi-Met Simulations, Remotely Sensed and In Situ Measurements |
| title_sort | diurnal outdoor thermal comfort mapping through envi met simulations remotely sensed and in situ measurements |
| topic | physiological equivalent temperature PET hUHTI hourly urban heatwave thermal index urban wellness ECOSTRESS |
| url | https://www.mdpi.com/2073-4433/14/4/641 |
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