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DOI	10.1007/s00382-019-04840-y
	Impact of model resolution on Arctic sea ice and North Atlantic Ocean heat transport
	Docquier D.; Grist J.P.; Roberts M.J.; Roberts C.D.; Semmler T.; Ponsoni L.; Massonnet F.; Sidorenko D.; Sein D.V.; Iovino D.; Bellucci A.; Fichefet T.
发表日期	2019
ISSN	0930-7575
起始页码	4989
结束页码	5017
卷号	53 期号:2020-07-08
英文摘要	Arctic sea-ice area and volume have substantially decreased since the beginning of the satellite era. Concurrently, the poleward heat transport from the North Atlantic Ocean into the Arctic has increased, partly contributing to the loss of sea ice. Increasing the horizontal resolution of general circulation models (GCMs) improves their ability to represent the complex interplay of processes at high latitudes. Here, we investigate the impact of model resolution on Arctic sea ice and Atlantic Ocean heat transport (OHT) by using five different state-of-the-art coupled GCMs (12 model configurations in total) that include dynamic representations of the ocean, atmosphere and sea ice. The models participate in the High Resolution Model Intercomparison Project (HighResMIP) of the sixth phase of the Coupled Model Intercomparison Project (CMIP6). Model results over the period 1950–2014 are compared to different observational datasets. In the models studied, a finer ocean resolution drives lower Arctic sea-ice area and volume and generally enhances Atlantic OHT. The representation of ocean surface characteristics, such as sea-surface temperature (SST) and velocity, is greatly improved by using a finer ocean resolution. This study highlights a clear anticorrelation at interannual time scales between Arctic sea ice (area and volume) and Atlantic OHT north of 60∘N in the models studied. However, the strength of this relationship is not systematically impacted by model resolution. The higher the latitude to compute OHT, the stronger the relationship between sea-ice area/volume and OHT. Sea ice in the Barents/Kara and Greenland–Iceland–Norwegian (GIN) Seas is more strongly connected to Atlantic OHT than other Arctic seas. © 2019, The Author(s).
英文关键词	Arctic sea ice; Model resolution; Ocean heat transport
语种	英语
scopus关键词	air-sea interaction; general circulation model; heat transfer; modeling; sea ice; sea surface temperature; Arctic Ocean; Atlantic Ocean; Atlantic Ocean (North); Barents Sea; Greenland Sea; Kara Sea; Norwegian Sea; Norwegian Sea
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/145939
作者单位	Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium; National Oceanography Centre, University of Southampton, Southampton, United Kingdom; Met Office Hadley Centre, Exeter, United Kingdom; European Centre for Medium Range Weather Forecasts, Shinfield Park, Reading, United Kingdom; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany; Shirshov Institute of Oceanology, Russian Academy of Science, Moscow, Russian Federation; Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), Bologna, Italy
推荐引用方式 GB/T 7714	Docquier D.,Grist J.P.,Roberts M.J.,et al. Impact of model resolution on Arctic sea ice and North Atlantic Ocean heat transport[J],2019,53(2020-07-08).
APA	Docquier D..,Grist J.P..,Roberts M.J..,Roberts C.D..,Semmler T..,...&Fichefet T..(2019).Impact of model resolution on Arctic sea ice and North Atlantic Ocean heat transport.Climate Dynamics,53(2020-07-08).
MLA	Docquier D.,et al."Impact of model resolution on Arctic sea ice and North Atlantic Ocean heat transport".Climate Dynamics 53.2020-07-08(2019).