Increased moist heat stress risk across China under warming climate

Abstract Heatwaves have afflicted human health, ecosystem, and socioeconomy and are expected to intensify under warming climate. However, few efforts have been directed to moist heat stress (MHS) considering relative humidity and wind speed, and moist heat stress risk (MHSR) considering exposure and...

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Main Authors: Shuai Sun, Qiang Zhang, Vijay P. Singh, Chunxiang Shi, Gang Wang, Wenhuan Wu, Zexi Shen
Format: Article
Language:English
Published: Nature Portfolio 2022-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-27162-2
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author Shuai Sun
Qiang Zhang
Vijay P. Singh
Chunxiang Shi
Gang Wang
Wenhuan Wu
Zexi Shen
author_facet Shuai Sun
Qiang Zhang
Vijay P. Singh
Chunxiang Shi
Gang Wang
Wenhuan Wu
Zexi Shen
author_sort Shuai Sun
collection DOAJ
description Abstract Heatwaves have afflicted human health, ecosystem, and socioeconomy and are expected to intensify under warming climate. However, few efforts have been directed to moist heat stress (MHS) considering relative humidity and wind speed, and moist heat stress risk (MHSR) considering exposure and vulnerability. Here we showed MHS and MHSR variations across China during 1998–2100 using China Meteorological Administration Land Data Assimilation System datasets, the 6th Coupled Model Intercomparison Project (CMIP6) merged datasets, Gross Domestic Product, population and leaf area index. We detected increased MHS across China under different Shared Socioeconomic Pathways (SSPs). Specifically, the historical MHS occurred mostly during mid-July to mid-August. We found increasing trends of 0.08%/year, 0.249%/year, and 0.669%/year in the MHS-affected areas under SSP126, SSP245, and SSP585, respectively. Furthermore, we observed the highest increasing rate of MHSR in Northwest and Southwest China, while the MHSR across Northeast and North China under SSP126 shifted from increasing to decreasing trends. Noteworthy is that the increasing trend of MHSR under SSP585 is 1.5–2.6 times larger than that under SSP245, especially in North and South China. This study highlights spatiotemporal evolutions of MHS and MHSR and mitigation to moisture heat stress in a warming climate.
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spelling doaj.art-f4ec73e1c5bb412f9b1c9cf89170396b2023-01-01T12:16:30ZengNature PortfolioScientific Reports2045-23222022-12-0112111210.1038/s41598-022-27162-2Increased moist heat stress risk across China under warming climateShuai Sun0Qiang Zhang1Vijay P. Singh2Chunxiang Shi3Gang Wang4Wenhuan Wu5Zexi Shen6State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal UniversityAdvanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal UniversityDepartment of Biological and Agricultural Engineering, Zachry Department of Civil and Environmental Engineering, Texas A&M UniversityNational Meteorological Information Center, China Meteorological AdministrationState Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal UniversityState Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal UniversityState Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal UniversityAbstract Heatwaves have afflicted human health, ecosystem, and socioeconomy and are expected to intensify under warming climate. However, few efforts have been directed to moist heat stress (MHS) considering relative humidity and wind speed, and moist heat stress risk (MHSR) considering exposure and vulnerability. Here we showed MHS and MHSR variations across China during 1998–2100 using China Meteorological Administration Land Data Assimilation System datasets, the 6th Coupled Model Intercomparison Project (CMIP6) merged datasets, Gross Domestic Product, population and leaf area index. We detected increased MHS across China under different Shared Socioeconomic Pathways (SSPs). Specifically, the historical MHS occurred mostly during mid-July to mid-August. We found increasing trends of 0.08%/year, 0.249%/year, and 0.669%/year in the MHS-affected areas under SSP126, SSP245, and SSP585, respectively. Furthermore, we observed the highest increasing rate of MHSR in Northwest and Southwest China, while the MHSR across Northeast and North China under SSP126 shifted from increasing to decreasing trends. Noteworthy is that the increasing trend of MHSR under SSP585 is 1.5–2.6 times larger than that under SSP245, especially in North and South China. This study highlights spatiotemporal evolutions of MHS and MHSR and mitigation to moisture heat stress in a warming climate.https://doi.org/10.1038/s41598-022-27162-2
spellingShingle Shuai Sun
Qiang Zhang
Vijay P. Singh
Chunxiang Shi
Gang Wang
Wenhuan Wu
Zexi Shen
Increased moist heat stress risk across China under warming climate
Scientific Reports
title Increased moist heat stress risk across China under warming climate
title_full Increased moist heat stress risk across China under warming climate
title_fullStr Increased moist heat stress risk across China under warming climate
title_full_unstemmed Increased moist heat stress risk across China under warming climate
title_short Increased moist heat stress risk across China under warming climate
title_sort increased moist heat stress risk across china under warming climate
url https://doi.org/10.1038/s41598-022-27162-2
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