气候变化领域集成服务门户(CCPortal): Regional asymmetries in ocean heat and carbon storage due to dynamic redistribution in climate model projections

CCPortal

DOI	10.1175/JCLI-D-20-0519.1
	Regional asymmetries in ocean heat and carbon storage due to dynamic redistribution in climate model projections
	Williams R.G.; Katavouta A.; Roussenov V.
发表日期	2021
ISSN	08948755
起始页码	3907
结束页码	3925
卷号	34 期号:10
英文摘要	Projected changes in ocean heat and carbon storage are assessed in terms of the added and redistributed tracer using a transport-based framework, which is applied to an idealized climate model and a suite of six CMIP5 Earth system models following an annual 1% rise in atmospheric CO2. Heat and carbon budgets for the added and redistributed tracer are used to explain opposing regional patterns in the storage of ocean heat and carbon anomalies, such as in the tropics and subpolar North Atlantic, and the relatively reduced storage within the Southern Ocean. Here the added tracer takes account of the net tracer source and the advection of the added tracer by the circulation, while the redistributed tracer takes account of the time-varying circulation advecting the preindustrial tracer distribution. The added heat and carbon often have a similar sign to each other with the net source usually acting to supply the tracer. In contrast, the redistributed heat and carbon consistently have an opposing sign to each other due to the opposing gradients in the preindustrial temperature and carbon. These different signs in heat and carbon redistribution can lead to regional asymmetries in the climate-driven changes in ocean heat and carbon storage. For a weakening in the Atlantic overturning and strengthening in the Southern Ocean residual circulation, the high latitudes are expected to have heat anomalies of variable sign and carbon anomalies of a consistently positive sign, since added and redistributed tracers are opposing in sign for heat and the same sign for carbon there. © 2021 American Meteorological Society.
英文关键词	Anthropogenic effects/forcing; Climate change; Climate models; Meridional overturning circulation; Upwelling/downwelling
语种	英语
scopus关键词	Atmospheric movements; Budget control; Climate change; Oceanography; Tracers; Carbon budgets; Dynamic redistribution; Earth system model; High Latitudes; Regional pattern; Residual circulations; Southern ocean; Subpolar North Atlantic; Climate models
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178567
作者单位	Department of Earth, Ocean and Ecological Sciences, School of Environmental Sciences, University of Liverpool, Liverpool, United Kingdom; National Oceanography Centre, Liverpool, United Kingdom
推荐引用方式 GB/T 7714	Williams R.G.,Katavouta A.,Roussenov V.. Regional asymmetries in ocean heat and carbon storage due to dynamic redistribution in climate model projections[J],2021,34(10).
APA	Williams R.G.,Katavouta A.,&Roussenov V..(2021).Regional asymmetries in ocean heat and carbon storage due to dynamic redistribution in climate model projections.Journal of Climate,34(10).
MLA	Williams R.G.,et al."Regional asymmetries in ocean heat and carbon storage due to dynamic redistribution in climate model projections".Journal of Climate 34.10(2021).