气候变化领域集成服务门户(CCPortal): The Brewer-Dobson circulation in CMIP6

CCPortal

DOI	10.5194/acp-21-13571-2021
	The Brewer-Dobson circulation in CMIP6
	Abalos M.; Calvo N.; Benito-Barca S.; Garny H.; Hardiman S.C.; Lin P.; Andrews M.B.; Butchart N.; Garcia R.; Orbe C.; Saint-Martin D.; Watanabe S.; Yoshida K.
发表日期	2021
ISSN	1680-7316
起始页码	13571
结束页码	13591
卷号	21 期号:17
英文摘要	The Brewer-Dobson circulation (BDC) is a key feature of the stratosphere that models need to accurately represent in order to simulate surface climate variability and change adequately. For the first time, the Climate Model Intercomparison Project includes in its phase 6 (CMIP6) a set of diagnostics that allow for careful evaluation of the BDC. Here, the BDC is evaluated against observations and reanalyses using historical simulations. CMIP6 results confirm the well-known inconsistency in the sign of BDC trends between observations and models in the middle and upper stratosphere. Nevertheless, the large uncertainty in the observational trend estimates opens the door to compatibility. In particular, when accounting for the limited sampling of the observations, model and observational trend error bars overlap in 40g% of the simulations with available output. The increasing CO2 simulations feature an acceleration of the BDC but reveal a large spread in the middle-To-upper stratospheric trends, possibly related to the parameterized gravity wave forcing. The very close connection between the shallow branch of the residual circulation and surface temperature is highlighted, which is absent in the deep branch. The trends in mean age of air are shown to be more robust throughout the stratosphere than those in the residual circulation. © Copyright:
语种	英语
scopus关键词	atmospheric circulation; climate modeling; gravity wave; sampling; stratosphere; trend analysis; uncertainty analysis
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246593
作者单位	Earth Physics and Astrophysics Department, Universidad Complutense de Madrid, Madrid, Spain; Deutsches Zentrum für Luft-und Raumfahrt (DLR), Oberpfaffenhofen, Germany; Met Office Hadley Centre, Exeter, United Kingdom; NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; Program in Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ, United States; National Center for Atmospheric Research, Boulder, CO, United States; Nasa Goddard Institute for Space Studies, New York, NY, United States; Centre National de Recherches Météorologiques, Toulouse, France; Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan; Meteorological Research Institute, Tsukuba, Japan
推荐引用方式 GB/T 7714	Abalos M.,Calvo N.,Benito-Barca S.,et al. The Brewer-Dobson circulation in CMIP6[J],2021,21(17).
APA	Abalos M..,Calvo N..,Benito-Barca S..,Garny H..,Hardiman S.C..,...&Yoshida K..(2021).The Brewer-Dobson circulation in CMIP6.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(17).
MLA	Abalos M.,et al."The Brewer-Dobson circulation in CMIP6".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.17(2021).