气候变化领域集成服务门户(CCPortal): Forced summer stationary waves: the opposing effects of direct radiative forcing and sea surface warming

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DOI	10.1007/s00382-019-04786-1
	Forced summer stationary waves: the opposing effects of direct radiative forcing and sea surface warming
	Baker H.S.; Woollings T.; Mbengue C.; Allen M.R.; O’Reilly C.H.; Shiogama H.; Sparrow S.
发表日期	2019
ISSN	0930-7575
起始页码	4291
结束页码	4309
卷号	53 期号:2020-07-08
英文摘要	We investigate the opposing effects of direct radiative forcing and sea surface warming on the atmospheric circulation using a hierarchy of models. In large ensembles of three general circulation models, direct CO 2 forcing produces a wavenumber 5 stationary wave over the Northern Hemisphere in summer. Sea surface warming produces a similar wave, but with the opposite sign. The waves are also present in the Coupled Model Intercomparison Project phase 5 ensemble with opposite signs due to direct CO 2 and sea surface warming. Analyses of tropical precipitation changes and equivalent potential temperature changes and the results from a simple barotropic model show that the wave is forced from the tropics. Key forcing locations are the Western Atlantic, Eastern Atlantic and in the Indian Ocean just off the east coast of Africa. The stationary wave has a significant impact on regional temperature anomalies in the Northern Hemisphere summer, explaining some of the direct effect that CO 2 concentration has on temperature extremes. Ultimately, the climate sensitivity and future changes in the land–sea temperature contrast will dictate the balance between the opposing effects on regional changes in mean and extreme temperature and precipitation under climate change. © 2019, The Author(s).
英文关键词	Land–sea thermal contrast; Midlatitude circulation; Radiative forcing; Rossby waves; Sea surface warming; Stationary waves
语种	英语
scopus关键词	atmospheric general circulation model; climate change; land-sea interaction; Northern Hemisphere; radiative forcing; Rossby wave; sea surface; standing wave; summer; temperature anomaly; warming; Africa; Atlantic Ocean; Atlantic Ocean (East); Atlantic Ocean (West); Indian Ocean
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145979
作者单位	Atmospheric, Oceanic and Planetary Physics, University of Oxford, Parks Rd, Oxford, OX1 3PU, United Kingdom; Environmental Change Institute, School of Geography and the Environment, University of Oxford, South Parks Road, Oxford, OX1 3QY, United Kingdom; Center for Global Environmental Research, National Institute for Environmental Studies, Tsukuba, Japan; Oxford e-Research Centre, Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, United Kingdom
推荐引用方式 GB/T 7714	Baker H.S.,Woollings T.,Mbengue C.,et al. Forced summer stationary waves: the opposing effects of direct radiative forcing and sea surface warming[J],2019,53(2020-07-08).
APA	Baker H.S..,Woollings T..,Mbengue C..,Allen M.R..,O’Reilly C.H..,...&Sparrow S..(2019).Forced summer stationary waves: the opposing effects of direct radiative forcing and sea surface warming.Climate Dynamics,53(2020-07-08).
MLA	Baker H.S.,et al."Forced summer stationary waves: the opposing effects of direct radiative forcing and sea surface warming".Climate Dynamics 53.2020-07-08(2019).