气候变化领域集成服务门户(CCPortal): Improved representation of ocean heat content in energy balance models

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DOI	10.1007/s10584-018-2333-9
	Improved representation of ocean heat content in energy balance models
	Nadiga B.T.; Urban N.M.
发表日期	2019
ISSN	0165-0009
起始页码	503
结束页码	516
卷号	152 期号:2020-03-04
英文摘要	Anomaly-diffusing energy balance models (AD-EBMs) are routinely employed to analyze and emulate the warming response of both observed and simulated Earth systems. We demonstrate a deficiency in common multi-layer as well as continuous-diffusion AD-EBM variants: They are unable to, simultaneously, properly represent surface warming and the vertical distribution of heat uptake. We show that this inability is due to the diffusion approximation. On the other hand, it is well understood that transport of water from the surface mixed layer into the ocean interior is achieved, in large part, by the process of ventilation—a process associated with outcropping isopycnals. We, therefore, start from a configuration of outcropping isopycnals and demonstrate how an AD-EBM can be modified to include the effect of ventilation on ocean uptake of anomalous radiative forcing. The resulting EBM is able to successfully represent both surface warming and the vertical distribution of heat uptake, and indeed, a simple four-layer model suffices. The simplicity of the models notwithstanding, the analysis presented and the necessity of the modification highlight the role played by processes related to the down-welling branch of global ocean circulation in shaping the vertical distribution of ocean heat uptake. © 2018, This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply.
英文关键词	Bayesian analysis; Climate sensitivity; Energy balance model; Ocean heat content; Ocean heat uptake; Radiative nonequilibrium; Simple climate model; Surface warming
语种	英语
scopus关键词	Atmospheric radiation; Energy balance; Enthalpy; Oceanography; Bayesian Analysis; Climate sensitivity; Energy balance models; Non equilibrium; Ocean heat content; Ocean heat uptake; Surface warming; Climate models; air-sea interaction; Bayesian analysis; climate modeling; energy balance; global ocean; heat transfer; isopycnal layer; mixed layer; sea surface temperature
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147509
作者单位	Los Alamos National Lab, Los Alamos, NM 87544, United States
推荐引用方式 GB/T 7714	Nadiga B.T.,Urban N.M.. Improved representation of ocean heat content in energy balance models[J],2019,152(2020-03-04).
APA	Nadiga B.T.,&Urban N.M..(2019).Improved representation of ocean heat content in energy balance models.Climatic Change,152(2020-03-04).
MLA	Nadiga B.T.,et al."Improved representation of ocean heat content in energy balance models".Climatic Change 152.2020-03-04(2019).