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Evaluation of Nature-Based Solutions to Improve the Urban Microclimate in Mediterranean Climate Conditions: A Case Study of Izmir-Karsıyaka

Author

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  • Gülşah Kaçmaz Akkurt

    (Department of City and Regional Planning, Faculty of Architecture, Dokuz Eylul University, Izmir 35390, Turkey)

  • Seda Şemsiyeci

    (Department of Landscape Architecture, Graduate School of Natural and Applied Sciences, Burdur Mehmet Akif Ersoy University, İstiklal Campus, Burdur 15030, Turkey)

Abstract

Today, rapid urbanization and increasing human activities have affected the climate at macro and micro scales in cities and caused unfavorable conditions in terms of human thermal comfort, especially in outdoor spaces. In this context, new solutions need to be researched, developed, tested, and updated to improve thermal comfort in cities. Using ENVI-met 5.1 software, this study investigated the effects of different NBS combinations on the urban microclimate and human bioclimatic comfort in Izmir (Turkey). The current situation, the scenarios where some nature-based solutions (NBS) are applied within the scope of the European Union’s HORIZON 2020 “URBAN GreenUP” project, and two other scenarios planned within the scope of the study were evaluated. The findings of the study showed that both the NBS scenarios created within the scope of the EU project and the NBS scenarios with large deciduous trees had the most positive impacts on improving thermal comfort conditions in all three study zones and achieved temperature reductions of up to 2.5 °C in urban temperatures. In terms of thermal comfort, the most significant differences were calculated between the minimum PMV values and were close to 1 °C. In addition, the simulation results showed positive changes in psychological stress levels.

Suggested Citation

  • Gülşah Kaçmaz Akkurt & Seda Şemsiyeci, 2024. "Evaluation of Nature-Based Solutions to Improve the Urban Microclimate in Mediterranean Climate Conditions: A Case Study of Izmir-Karsıyaka," Sustainability, MDPI, vol. 16(7), pages 1-20, March.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:7:p:2646-:d:1362619
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    References listed on IDEAS

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    1. Abdul Naser Majidi & Zoran Vojinovic & Alida Alves & Sutat Weesakul & Arlex Sanchez & Floris Boogaard & Jeroen Kluck, 2019. "Planning Nature-Based Solutions for Urban Flood Reduction and Thermal Comfort Enhancement," Sustainability, MDPI, vol. 11(22), pages 1-27, November.
    2. Francesca Mosca & Giulia Maria Dotti Sani & Andrea Giachetta & Katia Perini, 2021. "Nature-Based Solutions: Thermal Comfort Improvement and Psychological Wellbeing, a Case Study in Genoa, Italy," Sustainability, MDPI, vol. 13(21), pages 1-18, October.
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