气候变化领域集成服务门户(CCPortal): Evaluating Japan's revised heat-health warning system in the face of recent escalating heat stress

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DOI	10.1088/1748-9326/ad3a81
	Evaluating Japan's revised heat-health warning system in the face of recent escalating heat stress
	Guo, Qiang; Yuan, Lei; Ng, Chris Fook Sheng; Hashizume, Masahiro
发表日期	2024
ISSN	1748-9326
起始页码	19
结束页码	5
卷号	19 期号:5
英文摘要	In 2021, the Japanese government changed the exposure indicator of the national heat-health warning system (HHWS) from air temperature (T air) to Wet Bulb Globe Temperature (T WBG), reflecting the growing concerns about the escalating humid heat stress. However, a clear validation of the advantages of using heat stress indicators (HSIs) that combine T air and humidity in heat alerts and heat-health applications are still being explored. Here, by using the latest epidemiological data (2015-2019) before the COVID-19 pandemic, we examined the rationality of the revised HHWS for 47 prefectures in Japan. Specifically, we investigated the predictive power of different HSIs in modeling mortality and morbidity caused by different diseases (e.g. all causes, circulatory, respiratory, and heatstroke) and age groups. Our findings revealed substantial differences among the HSIs in identifying periods of intense heat stress, potentially leading to differences in the activation dates of the HHWS if various indicators were employed. While HSIs exhibited comparable performances in modeling daily mortality, our analysis demonstrates distinct advantages in using T WBG for daily morbidity predictions, and the quasi-Akaike Information Criterion of T WBG is much lower than the previously used T air. The merits of T WBG are consistent in modeling all causes, non-external, as well as heatstroke-related morbidity. Overall, this study underscores the practicality of incorporating HSIs in heat stress early warnings and provides critical insights for refining the HHWS to mitigate health impacts from heat stress under future climate change.
英文关键词	humid heat; heat alert system; public health; urban heat island; Japan
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001201275200001
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300161
作者单位	University of Tokyo
推荐引用方式 GB/T 7714	Guo, Qiang,Yuan, Lei,Ng, Chris Fook Sheng,et al. Evaluating Japan's revised heat-health warning system in the face of recent escalating heat stress[J],2024,19(5).
APA	Guo, Qiang,Yuan, Lei,Ng, Chris Fook Sheng,&Hashizume, Masahiro.(2024).Evaluating Japan's revised heat-health warning system in the face of recent escalating heat stress.ENVIRONMENTAL RESEARCH LETTERS,19(5).
MLA	Guo, Qiang,et al."Evaluating Japan's revised heat-health warning system in the face of recent escalating heat stress".ENVIRONMENTAL RESEARCH LETTERS 19.5(2024).