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Role of climate variability in the heatstroke death rates of Kanto region in Japan
The death toll by heatstroke in Japan, especially in Kanto region, has sharply increased since 1994 together with large interannual variability. The surface air temperature and humidity observed during boreal summers of 1980–2010 were examined to understand the role of climate in the death toll. The...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4090622/ https://www.ncbi.nlm.nih.gov/pubmed/25008122 http://dx.doi.org/10.1038/srep05655 |
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author | Akihiko, Takaya Morioka, Yushi Behera, Swadhin K. |
author_facet | Akihiko, Takaya Morioka, Yushi Behera, Swadhin K. |
author_sort | Akihiko, Takaya |
collection | PubMed |
description | The death toll by heatstroke in Japan, especially in Kanto region, has sharply increased since 1994 together with large interannual variability. The surface air temperature and humidity observed during boreal summers of 1980–2010 were examined to understand the role of climate in the death toll. The extremely hot days, when the daily maximum temperature exceeds 35°C, are more strongly associated with the death toll than the conventional Wet Bulb Globe Temperature index. The extremely hot days tend to be associated with El Niño/Southern Oscillation or the Indian Ocean Dipole, suggesting a potential link with tropical climate variability to the heatstroke related deaths. Also, the influence of these climate modes on the death toll has strengthened since 1994 probably related to global warming. It is possible to develop early warning systems based on seasonal climate predictions since recent climate models show excellent predictability skills for those climate modes. |
format | Online Article Text |
id | pubmed-4090622 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-40906222014-07-10 Role of climate variability in the heatstroke death rates of Kanto region in Japan Akihiko, Takaya Morioka, Yushi Behera, Swadhin K. Sci Rep Article The death toll by heatstroke in Japan, especially in Kanto region, has sharply increased since 1994 together with large interannual variability. The surface air temperature and humidity observed during boreal summers of 1980–2010 were examined to understand the role of climate in the death toll. The extremely hot days, when the daily maximum temperature exceeds 35°C, are more strongly associated with the death toll than the conventional Wet Bulb Globe Temperature index. The extremely hot days tend to be associated with El Niño/Southern Oscillation or the Indian Ocean Dipole, suggesting a potential link with tropical climate variability to the heatstroke related deaths. Also, the influence of these climate modes on the death toll has strengthened since 1994 probably related to global warming. It is possible to develop early warning systems based on seasonal climate predictions since recent climate models show excellent predictability skills for those climate modes. Nature Publishing Group 2014-07-10 /pmc/articles/PMC4090622/ /pubmed/25008122 http://dx.doi.org/10.1038/srep05655 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/ |
spellingShingle | Article Akihiko, Takaya Morioka, Yushi Behera, Swadhin K. Role of climate variability in the heatstroke death rates of Kanto region in Japan |
title | Role of climate variability in the heatstroke death rates of Kanto region in Japan |
title_full | Role of climate variability in the heatstroke death rates of Kanto region in Japan |
title_fullStr | Role of climate variability in the heatstroke death rates of Kanto region in Japan |
title_full_unstemmed | Role of climate variability in the heatstroke death rates of Kanto region in Japan |
title_short | Role of climate variability in the heatstroke death rates of Kanto region in Japan |
title_sort | role of climate variability in the heatstroke death rates of kanto region in japan |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4090622/ https://www.ncbi.nlm.nih.gov/pubmed/25008122 http://dx.doi.org/10.1038/srep05655 |
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