气候变化领域集成服务门户(CCPortal): Arctic sea ice variation in the Northwest Passage in 1979–2017 and its response to surface thermodynamics factors

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DOI	10.1016/j.accre.2021.08.004
	Arctic sea ice variation in the Northwest Passage in 1979–2017 and its response to surface thermodynamics factors
	Shen X.-Y.; Zhang Y.; Chen C.-S.; Hu S.; Xu D.-Y.; Shao W.-Z.; Chang L.; Feng G.-P.
发表日期	2021
ISSN	1674-9278
起始页码	563
结束页码	580
卷号	12 期号:4
英文摘要	Sea ice conditions in the Canadian Arctic Archipelago (CAA) play a key role in the navigation of the Northwest Passage (NWP). Limited by observed sea ice thickness data, the research of temporal and spatial variation of sea ice in the NWP is insufficient. Based on the observed sea ice concentration and simulated thickness data, the temporal and spatial characteristics of sea ice concentration, extent and thickness from 1979 to 2017 in the NWP of the CAA were studied. The more specific pathways of the northern and southern routes of the NWP were evaluated. Against the background of the rapid retreat of Arctic sea ice, the 39-year observed sea ice concentration and extent of the NWP exhibited a relatively large decreasing trend in summer and fall, while heavy sea ice conditions were maintained in winter and spring, with slightly increasing trend in some subregions. The sea ice thickness in most subregions of the NWP showed a decreasing trend, with exception of Lancaster Sound. The sea ice thickness was larger along the northern route than the southern routes. The significant correlation (p < 0.05) between sea ice and surface air temperature (SAT) and sea surface temperature (SST) in the NWP suggested that the surface thermodynamic factors had a greater impact on sea ice in the summer and fall, and the variations of sea ice concentration were more closely correlated with the surface thermodynamic factors than sea ice thickness. The SST had a higher correlation with sea ice concentration than SAT, while SAT exhibited a higher correlation with sea ice thickness than SST. The remaining sea ice concentration and thickness in the fall, associated with the summer and fall SAT and SST, contributed to the formation of sea ice in the following winter and spring. The heat content and mixed layer depth were also be considered as the vertical thermodynamic factors to the sea ice condition in the NWP. © 2021 The Authors
英文关键词	Northwest Passage; Sea ice concentration; Sea ice thickness; Sea surface temperature; Surface air temperature
来源期刊	Advances in Climate Change Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236457
作者单位	College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China; Shanghai Ocean Monitoring and Forecasting Center, Shanghai, 200062, China; School for Marine Science and Technology, University of Massachusetts-Dartmouth, New Bedford, 02744, United States
推荐引用方式 GB/T 7714	Shen X.-Y.,Zhang Y.,Chen C.-S.,等. Arctic sea ice variation in the Northwest Passage in 1979–2017 and its response to surface thermodynamics factors[J],2021,12(4).
APA	Shen X.-Y..,Zhang Y..,Chen C.-S..,Hu S..,Xu D.-Y..,...&Feng G.-P..(2021).Arctic sea ice variation in the Northwest Passage in 1979–2017 and its response to surface thermodynamics factors.Advances in Climate Change Research,12(4).
MLA	Shen X.-Y.,et al."Arctic sea ice variation in the Northwest Passage in 1979–2017 and its response to surface thermodynamics factors".Advances in Climate Change Research 12.4(2021).