Changes caused by human activities in the high health-risk hot-dry and hot-wet events in China

Communications Earth & Environment, Journal Year: 2024, Volume and Issue: 5(1)

Published: Aug. 27, 2024

Compound heat anomalies associated with humidity, such as compound hot-dry events and hot-wet events, pose greater health risks than single anomalies. Here, we utilize ambulance dispatch data along air temperature relative humidity to study human impacts on these in China. We show that relying solely without considering may underestimate the of populations. Over past 40 years, anthropogenic activities have increased by 2.34 times decreased 0.63 times, especially Yangtze River region, compared natural forcing. also speculate that, future up 2060, under carbon-neutral scenario, frequencies high health-risk caused can be reduced one-half over one-fifth, respectively, high-emissions scenario. These findings provide guidance for assessing global warming. China led anomalies, which could if scenarios are implemented, according analysis data, temperature, humidity.

Language: Английский

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Anthropogenic Climate Change and Urbanization Exacerbate Risk of Hybrid Heat Extremes in China

Journal of Geophysical Research Atmospheres, Journal Year: 2024, Volume and Issue: 129(17)

Published: Sept. 2, 2024

Abstract Dry‐ and wet‐bulb temperature ( T d w ) are usually to define heatwaves (HWs) which have been enhanced under anthropogenic climate change (ACC) urbanization. However, responses of various types HWs (i.e., dry HWs, only high ; humid hybrid both total or ), ACC urbanization remain unknown. In this study, observations simulations show significantly increasing occurrence probability over China during 1971–2020, whereas increase is mainly reflected in followed by HWs. 68.2%–93.0% the observed increases above four can be attributed ACC; on other hand, tends suppress but enhance as a result contributing 10.9%. Under future ACC, projected more frequent expected, sourced from because dry/humid steady/downward. As consequence, urban population exposure ACC‐induced would remarkably 83.55 billion person‐days 2090s, 89.5% Urbanization amplify 74.79 110.9 person‐days. Our results underscore importance improving understanding areas developing targeted adaptation planning warmer planet.

Language: Английский

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Urban resilience assessment and multi-scenario simulation: A case study of three major urban agglomerations in China

Environmental Impact Assessment Review, Journal Year: 2024, Volume and Issue: 111, P. 107734 - 107734

Published: Nov. 23, 2024

Language: Английский

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Opposite Changes Caused by Human Activities in the Occurrence of High Health-Risk Compound Hot-Dry and Hot-Wet Events in China

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: April 19, 2024

Abstract Compared to a single high-temperature anomaly, compound heat anomalies associated with humidity, such as Compound Hot-Dry Events (CHDEs) and Hot-Wet (CHWEs), pose greater threat human health. However, it is still unclear how activities natural forcings affect the likelihood of these health-related events. Here we utilize ambulance dispatch data along meteorological study impact on high health-risk CHDEs CHWEs in China. We show that relying solely temperature standards without considering humidity may underestimate health risks events populations. find during past 40 years, anthropogenic China have increased decreased occurrence 2.34 0.63 times from 1979 2014, respectively, particularly middle lower reaches Yangtze River region, compared forcing. And future, opposing contribution will be likely persist under different shared socioeconomic pathways. also speculate that, future up 2060, carbon-neutral scenario, frequencies caused by can reduced one-half over one-fifth, high-emissions scenario (SSP-5.85). Our results provide initial guidance recognize asses risk global warming.

Language: Английский

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Deep hybridnet for drought prediction based on large-scale climate indices and local meteorological conditions

Stochastic Environmental Research and Risk Assessment, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 22, 2024

Language: Английский

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Global warming and urbanization triggering the record-breaking heat event in summer 2023 over Beijing-Tianjin-Hebei urban agglomeration, China

Urban Climate, Journal Year: 2024, Volume and Issue: 59, P. 102271 - 102271

Published: Dec. 30, 2024

Language: Английский

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