气候变化领域集成服务门户(CCPortal): Cloud-Radiative Impact on the Regional Responses of the Midlatitude Jet Streams and Storm Tracks to Global Warming

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DOI	10.1029/2018MS001592
	Cloud-Radiative Impact on the Regional Responses of the Midlatitude Jet Streams and Storm Tracks to Global Warming
	Albern N.; Voigt A.; Pinto J.G.
发表日期	2019
ISSN	19422466
起始页码	1940
结束页码	1958
卷号	11 期号:7
英文摘要	Previous work demonstrated the strong radiative coupling between clouds and the midlatitude circulation. Here we investigate the impact of cloud-radiative changes on the global warming response of the midlatitude jet streams and storm tracks in the North Atlantic, North Pacific, and Southern Hemisphere. To this end, we use the ICOsahedral Nonhydrostatic global atmosphere model in present-day setup and with the cloud-locking method. Sea surface temperatures are prescribed to isolate the circulation response to atmospheric cloud-radiative heating. In the annual mean, cloud-radiative changes contribute one to two thirds to the poleward jet shift in all three ocean basins and support the jet strengthening in the North Atlantic and Southern Hemisphere. Cloud-radiative changes also impact the storm track, but the impact is more diverse across the three ocean basins. The cloud-radiative impact on the North Atlantic and North Pacific jets varies little from season to season in absolute terms, whereas its relative importance changes over the course of the year. In the Southern Hemisphere, cloud-radiative changes strengthen the jet in all seasons, whereas their impact on the jet shift is limited to austral summer and fall. The cloud-radiative impact is largely zonally symmetric and independent of whether global warming is mimicked by a uniform 4 K or spatially varying sea surface temperatures increase. Our results emphasize the importance of cloud-radiative changes for the response of the midlatitude circulation to global warming, indicating that clouds can contribute to uncertainty in model projections of future circulations. ©2019. The Authors.
英文关键词	cloud-radiative interactions; global climate model; jet stream; midlatitude circulation; regional climate change; storm track
语种	英语
scopus关键词	Atmospheric temperature; Climate models; Global warming; Locks (fasteners); Storms; Submarine geophysics; Surface properties; Surface waters; Global climate model; Jet streams; Midlatitudes; Radiative interactions; Regional climate changes; Storm track; Oceanography; air-sea interaction; atmospheric circulation; climate modeling; cloud radiative forcing; global warming; heating; hydrostatics; jet stream; regional climate; sea surface temperature; Southern Hemisphere; storm track
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156973
作者单位	Institute of Meteorology and Climate Research - Department Troposphere Research, Karlsruhe Institute of Technology, Karlsruhe, Germany; Lamont-Doherty Earth Observatory, Columbia University, New York, NY, United States
推荐引用方式 GB/T 7714	Albern N.,Voigt A.,Pinto J.G.. Cloud-Radiative Impact on the Regional Responses of the Midlatitude Jet Streams and Storm Tracks to Global Warming[J],2019,11(7).
APA	Albern N.,Voigt A.,&Pinto J.G..(2019).Cloud-Radiative Impact on the Regional Responses of the Midlatitude Jet Streams and Storm Tracks to Global Warming.Journal of Advances in Modeling Earth Systems,11(7).
MLA	Albern N.,et al."Cloud-Radiative Impact on the Regional Responses of the Midlatitude Jet Streams and Storm Tracks to Global Warming".Journal of Advances in Modeling Earth Systems 11.7(2019).