Geographical inhomogeneity and temporal variability of mixing property and driving mechanism in the Arctic Ocean

doi:10.1007/s00343-021-1037-6

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Geographical inhomogeneity and temporal variability of mixing property and driving mechanism in the Arctic Ocean
	You, Jia 4,5,6,7; Xu, Zhenhua 3,4,5,6,7; Robertson, Robin 2; Li, Qun 1; Yin, Baoshu 3,4,5,6,7
刊名	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2022-03-25
页码	24
关键词	mixing the Arctic Ocean near-inertial waves stratification heat flux
ISSN号	2096-5508
DOI	10.1007/s00343-021-1037-6
通讯作者	Xu, Zhenhua(xuzhenhua@qdio.ac.cn) ; Li, Qun(liqun@pric.org.cn)
英文摘要	Upper ocean mixing plays a key role in the atmosphere-ocean heat transfer and sea ice extent and thickness via modulating the upper ocean temperatures in the Arctic Ocean. Observations of diffusivities in the Arctic that directly indicate the ocean mixing properties are sparse. Therefore, the spatiotemporal pattern and magnitude of diapycnal diffusivities and kinetic energy dissipation rates in the upper Arctic Ocean are important for atmosphere-ocean heat transfers and sea ice changes. These were first estimated from the Ice-Tethered Profilers dataset (2005-2019) using a strain-based fine-scale parameterization. The resultant mixing properties showed significant geographical inhomogeneity and temporal variability. Diapycnal diffusivities and dissipation rates in the Atlantic sector of the Arctic Ocean were stronger than those on the Pacific side. Mixing in the Atlantic sector increased significantly during the observation period; whereas in the Pacific sector, it weakened before 2011 and then strengthened. Potential impact factors include wind, sea ice, near inertial waves, and stratification, while their relative contributions vary between the two sectors of the Arctic Ocean. In the Atlantic sector, turbulent mixing dominated, while in the Pacific sector, turbulent mixing was inhibited by strong stratification prior to 2011, and is able to overcome the stratification gradually after 2014. The vertical turbulent heat flux constantly increased in the Atlantic sector year by year, while it decreased in the Pacific sector post 2010. The estimated heat flux variability induced by enhanced turbulent mixing is expected to continue to diminish sea ice in the near future.
资助项目	National Key Research and Development Program of China[2019YFE0105700] ; National Key Research and Development Program of China[2017YFA0604102] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA22050202] ; National Natural Science Foundation of China[92058202] ; National Natural Science Foundation of China[41676006] ; National Natural Science Foundation of China[42176244] ; Key Deployment Project of Centre for Ocean Mega-Research of Science, Chinese Academy of Sciences[COMS2020Q07] ; CAS-CSIRO Jointly MHW Project[133244KYSB20190031]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000773850200003
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/178624]
专题	海洋研究所_海洋生态与环境科学重点实验室
通讯作者	Xu, Zhenhua; Li, Qun
作者单位	1.Polar Res Inst China, MNR Key Lab Polar Sci, Shanghai 200120, Peoples R China 2.Xiamen Univ Malaysia, China Asean Coll Marine Sci, Sepang 43900, Malaysia 3.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 6.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Peoples R China 7.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	You, Jia,Xu, Zhenhua,Robertson, Robin,et al. Geographical inhomogeneity and temporal variability of mixing property and driving mechanism in the Arctic Ocean[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2022:24.
APA	You, Jia,Xu, Zhenhua,Robertson, Robin,Li, Qun,&Yin, Baoshu.(2022).Geographical inhomogeneity and temporal variability of mixing property and driving mechanism in the Arctic Ocean.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,24.
MLA	You, Jia,et al."Geographical inhomogeneity and temporal variability of mixing property and driving mechanism in the Arctic Ocean".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2022):24.