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Changes in Thermal Stress in Korea Using Climate-Based Indicators: Present-Day and Future Projections from 1 km High Resolution Scenarios

Author

Listed:
  • Hyun Min Sung

    (Climate Change Research Team, National Institute of Meteorological Sciences, Seogwipo-si 63568, Jeju-do, Republic of Korea)

  • Jae-Hee Lee

    (Climate Change Research Team, National Institute of Meteorological Sciences, Seogwipo-si 63568, Jeju-do, Republic of Korea)

  • Jin-Uk Kim

    (Climate Change Research Team, National Institute of Meteorological Sciences, Seogwipo-si 63568, Jeju-do, Republic of Korea)

  • Sungbo Shim

    (Climate Change Research Team, National Institute of Meteorological Sciences, Seogwipo-si 63568, Jeju-do, Republic of Korea)

  • Chu-Yong Chung

    (Climate Change Research Team, National Institute of Meteorological Sciences, Seogwipo-si 63568, Jeju-do, Republic of Korea)

  • Young-Hwa Byun

    (Climate Change Research Team, National Institute of Meteorological Sciences, Seogwipo-si 63568, Jeju-do, Republic of Korea)

Abstract

Among the various thermal stress indices, apparent temperature (AT) is closely related to public health indicators, and consequently is widely used by weather agencies around the world. Therefore, in this paper we estimate the changes in AT and contributing components in Korea as a whole and in five major cities (Seoul, Gwanju, Daegu, Daejeon, and Busan) using national standard climate scenarios based on the coupled model inter-comparison project (CMIP6). In the present day, high AT occurs in major cities due to high temperature (TAS) and relative humidity (RH). Our findings reveal that even when TAS is relatively low, large AT occurs with higher humidity. Notably, in future warmer climate conditions, high AT may first appear in the five major cities and then extend to the surrounding areas. An increase in TAS and RH during the pre-hot season (March to June) may lead to earlier occurrence of thermal risks in future warmer climate conditions and more frequent occurrence of high thermal stress events. Our study can serve as a reference for future information on thermal risk changes in Korea. Considering those who have not adapted to high temperature environments, our findings imply that thermal risks will become more serious and that heat adaptation strategies will be needed during the pre-hot season under future warmer climate conditions.

Suggested Citation

  • Hyun Min Sung & Jae-Hee Lee & Jin-Uk Kim & Sungbo Shim & Chu-Yong Chung & Young-Hwa Byun, 2023. "Changes in Thermal Stress in Korea Using Climate-Based Indicators: Present-Day and Future Projections from 1 km High Resolution Scenarios," IJERPH, MDPI, vol. 20(17), pages 1-12, August.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:17:p:6694-:d:1230238
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    References listed on IDEAS

    as
    1. Yeora Chae & Jongchul Park, 2021. "Analysis on Effectiveness of Impact Based Heatwave Warning Considering Severity and Likelihood of Health Impacts in Seoul, Korea," IJERPH, MDPI, vol. 18(5), pages 1-13, March.
    2. David García-León & Ana Casanueva & Gabriele Standardi & Annkatrin Burgstall & Andreas D. Flouris & Lars Nybo, 2021. "Current and projected regional economic impacts of heatwaves in Europe," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    3. He, Bao-Jie & Wang, Junsong & Zhu, Jin & Qi, Jinda, 2022. "Beating the urban heat: Situation, background, impacts and the way forward in China," Renewable and Sustainable Energy Reviews, Elsevier, vol. 161(C).
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