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Future projections of heat mortality risk for major european cities

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Title
Future projections of heat mortality risk for major european cities
Author(s)
Karwat, Alexia; Christian L. E. Franzke
Publication Date
2021-10
Journal
Weather, Climate, and Society, v.13, no.4, pp.913 - 931
Publisher
American Meteorological Society
Abstract
© 2021 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).Over the last few decades, heat waves have intensified and have led to excess mortality. While the probability of being affected by heat stress has significantly increased, the risk of heat mortality is rarely quantified. This quantification of heat mortality risk is necessary for systematic adaptation measures. Furthermore, heat mortality records are sparse and short, which presents a challenge for assessing heat mortality risk for future climate projections. It is therefore crucial to derive indicators for a systematic heat mortality risk assessment. Here, risk indicators based on temperature and mortality data are developed and applied to major cities in Germany, France, and Spain using regional climate model simulations. Bias-corrected daily maximum, minimum, and wet-bulb temperatures show increasing trends in future climate projections for most considered cities. In addition, we derive a relationship between daily maximum temperatures and mortality for producing future projections of heat mortality risk from extreme temperatures that is based on low (representative concentration pathway RCP2.6) and high (RCP8.5) emission scenario future climate projections. Our results illustrate that heat mortality increases by about 0.9% decade-1 in Germany, 1.7% decade-1 in France, and 7.9% decade-1 in Spain for RCP8.5 by 2050. The future climate projections also show that wet-bulb temperatures above 308C will be reached regularly, with maxima above 408Clikely by 2050. Our results suggest a significant increase of heat mortality in the future, especially in Spain. On average, our results indicate that the mortality risk trend is almost 2 times as high in all three countries for the RCP8.5 scenario relative to RCP2.6.
URI
https://pr.ibs.re.kr/handle/8788114/11002
DOI
10.1175/WCAS-D-20-0142.1
ISSN
1948-8327
Appears in Collections:
Center for Climate Physics(기후물리 연구단) > 1. Journal Papers (저널논문)
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