气候变化领域集成服务门户(CCPortal): Impact of summer Tibetan Plateau snow cover on the variability of concurrent compound heatwaves in the Northern Hemisphere

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DOI	10.1088/1748-9326/ad1435
	Impact of summer Tibetan Plateau snow cover on the variability of concurrent compound heatwaves in the Northern Hemisphere
	Dong, Wei; Jia, Xiaojing; Wu, Renguang
发表日期	2024
ISSN	1748-9326
起始页码	19
结束页码	1
卷号	19 期号:1
英文摘要	Concurrent compound heatwaves (CCHWs) occurring simultaneously in multiple regions in the Northern Hemisphere (NH) pose high-end risks to human health and global supply chains. Over the past decade, CCHWs related to human health have substantially increased in occurrence. However, the mechanisms of the CCHWs remain uncertain. This work has revealed a significant relationship between the variability of summer CCHWs in the NH and changes in quasi-stationary waves during 1979-2021, which can be attributed to the variation of summer snow cover over the western Tibetan Plateau (SC_WTP). Excessive SC_WTP causes diabatic cooling by modulating the surface energy budget and stimulating a tripolar Rossby wave source. The atmospheric response to the SC_WTP-driven disturbance manifests as a circumglobal circulation pattern, weakening the meridional temperature gradients and causing a 'double jet stream' in the NH. These changes modulate the phase, amplitude and proportion of quasi-stationary waves with wavenumbers 4-6, leading to an increase in CCHWs in the NH. In addition, population exposure to CCHWs reaches 4.91 billion person-day when the SC_WTP increases by one standard deviation. Our study highlights the significance of early warning and forecasting implications related to SC_WTP for CCHWs that impact human health within the context of climate change.
英文关键词	concurrent compound heatwaves; Tibetan Plateau snow cover; quasi-stationary waves; population exposure
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:001129424000001
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/288389
作者单位	Zhejiang University
推荐引用方式 GB/T 7714	Dong, Wei,Jia, Xiaojing,Wu, Renguang. Impact of summer Tibetan Plateau snow cover on the variability of concurrent compound heatwaves in the Northern Hemisphere[J],2024,19(1).
APA	Dong, Wei,Jia, Xiaojing,&Wu, Renguang.(2024).Impact of summer Tibetan Plateau snow cover on the variability of concurrent compound heatwaves in the Northern Hemisphere.ENVIRONMENTAL RESEARCH LETTERS,19(1).
MLA	Dong, Wei,et al."Impact of summer Tibetan Plateau snow cover on the variability of concurrent compound heatwaves in the Northern Hemisphere".ENVIRONMENTAL RESEARCH LETTERS 19.1(2024).