气候变化领域集成服务门户(CCPortal): Heat balance in the nordic seas in a global 1/12° coupled model

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DOI	10.1175/JCLI-D-20-0063.1
	Heat balance in the nordic seas in a global 1/12° coupled model
	Treguier A.M.; Mathiot P.; Graham T.; Copsey D.; Lique C.; Sterlin J.
发表日期	2021
ISSN	0894-8755
起始页码	89
结束页码	106
卷号	34 期号:1
英文摘要	The Nordic seas are a gateway to the Arctic Ocean, where Atlantic water undergoes a strong cooling during its transit. Here we investigate the heat balance of these regions in the high-resolution Met Office Global Coupled Model GC3 with a 1/128 grid. The GC3 model reproduces the contrasted ice conditions and ocean heat loss between the eastern and western regions of the Nordic seas. In the west (Greenland and Iceland seas), the heat loss experienced by the ocean is stronger than the atmospheric heat gain, because of the cooling by ice melt. The latter is a major contribution to the heat loss over the path of the East Greenland Current and west of Svalbard. In the model, surface fluxes balance the convergence of heat in each of the eastern and western regions. The net east-west heat exchange, integrated from Fram Strait to Iceland, is relatively small: the westward heat transport of the Return Atlantic Current over Knipovich Ridge balances the eastward heat transport by the East Icelandic Current. Time fluctuations, including eddies, are a significant contribution to the net heat transports. The eddy flux represents about 20% of the total heat transport in Denmark Strait and across Knipovich Ridge. The coupled ocean-atmosphere-ice model may overestimate the heat imported from the Atlantic and exported to the Arctic by 10% or 15%. This confirms the tendency toward higher northward heat transports as model resolution is refined, which will impact scenarios of future climate. © 2020 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Ferroelectric RAM; Heat losses; Heat transfer; Ice; Oceanography; Specific heat; Atmospheric heat; Coupled modeling; East greenland currents; Global coupled model; Impact scenarios; Knipovich Ridge; Model resolution; Ocean atmosphere; Climate models; air-sea interaction; atmosphere-ocean coupling; climate modeling; eddy; future prospect; heat balance; heat transfer; Arctic; Arctic Ocean; Arctic Ocean; Greenland; Iceland; Norwegian Sea
语种	英语
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/170986
作者单位	Univ. Brest, CNRS, IRD, Ifremer, Laboratoire d'Oceanographie Physique et Spatiale, IUEM, Brest, France; Met Office, Exeter, United Kingdom; Georges Lemaître Centre for Earth and Climate Research, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
推荐引用方式 GB/T 7714	Treguier A.M.,Mathiot P.,Graham T.,et al. Heat balance in the nordic seas in a global 1/12° coupled model[J],2021,34(1).
APA	Treguier A.M.,Mathiot P.,Graham T.,Copsey D.,Lique C.,&Sterlin J..(2021).Heat balance in the nordic seas in a global 1/12° coupled model.Journal of Climate,34(1).
MLA	Treguier A.M.,et al."Heat balance in the nordic seas in a global 1/12° coupled model".Journal of Climate 34.1(2021).