Regional characteristics of hot days and tropical nights in the Honam area, South Korea

Abstract This study analyses the regional characteristics of heat extremes (hot days and tropical nights) in the Honam area of South Korea during the recent 23 years (1997–2019) by using weather station data. The results based on the binary classifications of stations, that is, inland versus coastal...

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Main Authors: Tae‐Won Park, Chan‐Gi Lee, Minhee Chang, Doo‐Sun R. Park
Format: Article
Language:English
Published: Wiley 2022-06-01
Series:Atmospheric Science Letters
Subjects:
Online Access:https://doi.org/10.1002/asl.1086
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author Tae‐Won Park
Chan‐Gi Lee
Minhee Chang
Doo‐Sun R. Park
author_facet Tae‐Won Park
Chan‐Gi Lee
Minhee Chang
Doo‐Sun R. Park
author_sort Tae‐Won Park
collection DOAJ
description Abstract This study analyses the regional characteristics of heat extremes (hot days and tropical nights) in the Honam area of South Korea during the recent 23 years (1997–2019) by using weather station data. The results based on the binary classifications of stations, that is, inland versus coastal and urban versus rural, show hot days in inland regions are climatologically more frequent, and present higher interannual variability and more evident increasing trend than coastal regions. On the other hand, inland regions are exposed to less active tropical nights. The thermal characteristics associated with the oceanic (or continental) climate at which the station is located are responsible for the inland–coastal dependency of frequencies in hot days and tropical nights. The noticeable discrimination between urban and rural stations, categorized by population, appears only in tropical night occurrences, while hot days are independent of urban–rural contrast. In urban stations, tropical night occurrences are climatologically higher, interannually more active, and recently more frequent. Regarding the urban heat island, the additional nocturnal heat leads to the urban concentrated activity of tropical nights. Our analyses suggest that for accurate forecasts of hot days and tropical nights, different regional environments must be considered.
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spelling doaj.art-e6160b34a9a8442a85ac8911ae5fd63f2022-12-22T00:37:17ZengWileyAtmospheric Science Letters1530-261X2022-06-01236n/an/a10.1002/asl.1086Regional characteristics of hot days and tropical nights in the Honam area, South KoreaTae‐Won Park0Chan‐Gi Lee1Minhee Chang2Doo‐Sun R. Park3Department of Earth Science Education Chonnam National University Gwangju South KoreaDepartment of Earth Science Education Chonnam National University Gwangju South KoreaSchool of Earth and Environmental Sciences Seoul National University Seoul South KoreaDepartment of Earth Science Education Kyungpook National University Daegu South KoreaAbstract This study analyses the regional characteristics of heat extremes (hot days and tropical nights) in the Honam area of South Korea during the recent 23 years (1997–2019) by using weather station data. The results based on the binary classifications of stations, that is, inland versus coastal and urban versus rural, show hot days in inland regions are climatologically more frequent, and present higher interannual variability and more evident increasing trend than coastal regions. On the other hand, inland regions are exposed to less active tropical nights. The thermal characteristics associated with the oceanic (or continental) climate at which the station is located are responsible for the inland–coastal dependency of frequencies in hot days and tropical nights. The noticeable discrimination between urban and rural stations, categorized by population, appears only in tropical night occurrences, while hot days are independent of urban–rural contrast. In urban stations, tropical night occurrences are climatologically higher, interannually more active, and recently more frequent. Regarding the urban heat island, the additional nocturnal heat leads to the urban concentrated activity of tropical nights. Our analyses suggest that for accurate forecasts of hot days and tropical nights, different regional environments must be considered.https://doi.org/10.1002/asl.1086heat extremesheat wavehot daygeographytropical nighturbanization
spellingShingle Tae‐Won Park
Chan‐Gi Lee
Minhee Chang
Doo‐Sun R. Park
Regional characteristics of hot days and tropical nights in the Honam area, South Korea
Atmospheric Science Letters
heat extremes
heat wave
hot day
geography
tropical night
urbanization
title Regional characteristics of hot days and tropical nights in the Honam area, South Korea
title_full Regional characteristics of hot days and tropical nights in the Honam area, South Korea
title_fullStr Regional characteristics of hot days and tropical nights in the Honam area, South Korea
title_full_unstemmed Regional characteristics of hot days and tropical nights in the Honam area, South Korea
title_short Regional characteristics of hot days and tropical nights in the Honam area, South Korea
title_sort regional characteristics of hot days and tropical nights in the honam area south korea
topic heat extremes
heat wave
hot day
geography
tropical night
urbanization
url https://doi.org/10.1002/asl.1086
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AT changilee regionalcharacteristicsofhotdaysandtropicalnightsinthehonamareasouthkorea
AT minheechang regionalcharacteristicsofhotdaysandtropicalnightsinthehonamareasouthkorea
AT doosunrpark regionalcharacteristicsofhotdaysandtropicalnightsinthehonamareasouthkorea