IOCAS-IR  > 海洋环流与波动重点实验室
Mesoscale Eddy Effects on the Subduction of North Pacific Eastern Subtropical Mode Water
Wang, Ran1,2; Cheng, Xuhua1; Xu, Lixiao3,4; Chen, Jiajia1
2020-05-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
Volume125Issue:5Pages:15
Corresponding AuthorCheng, Xuhua(xuhuacheng@hhu.edu.cn)
AbstractThe effects of mesoscale eddies on the subduction of the North Pacific eastern subtropical mode water (ESTMW) are studied by comparing observations with results from the Ocean Model for the Earth Simulator (OFES). Both observations and the OFES show that mesoscale eddies exist in the ESTMW subduction region. Compared to the observations, the OFES reproduces the characteristics of the ESTMW and subduction quite well. Subduction of the ESTMW mainly occurs within a low-density advection region, which leads to the formation of low potential vorticity water. The eddy subduction rate accounts for nearly 56% of the total subduction rate, creating high peaks in the ESTMW subduction volume histogram. Case study results show that the propagation of eddies is responsible for the shallowing of the mixed-layer depth, which allows low potential vorticity water to subduct under the mixed-layer bottom and prevents it from being entrained back into the mixed layer. The eddy subduction process investigated here has important implications for the further study of ESTMW subduction and transport, which is helpful for better understanding the interior transportation between the tropics and subtropics. Key Points Eddy subduction account for the majority of total subduction in ESTMW subduction region Eddy-resolved model data is needed to do mechanism analysis Mesoscale eddies enhance ESTMW subduction by strengthening the rate of mixed layer shallowing
KeywordESTMW subduction mesoscale eddies
DOI10.1029/2019JC015641
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFA0604602] ; Fundamental Research Funds for the Central Universities[2017B03914] ; Fundamental Research Funds for the Central Universities[2017B04714] ; Natural Science Foundation of Jiangsu Province[BK20170870] ; Natural Science Foundation of China[41522601] ; Natural Science Foundation of China[41876002]
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000548601000002
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167970
Collection海洋环流与波动重点实验室
Corresponding AuthorCheng, Xuhua
Affiliation1.Hohai Univ, Coll Oceanog, Nanjing, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
3.Ocean Univ China, Phys Oceanog Lab CIMST, Qingdao, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
First Author AffilicationKey Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Ran,Cheng, Xuhua,Xu, Lixiao,et al. Mesoscale Eddy Effects on the Subduction of North Pacific Eastern Subtropical Mode Water[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2020,125(5):15.
APA Wang, Ran,Cheng, Xuhua,Xu, Lixiao,&Chen, Jiajia.(2020).Mesoscale Eddy Effects on the Subduction of North Pacific Eastern Subtropical Mode Water.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,125(5),15.
MLA Wang, Ran,et al."Mesoscale Eddy Effects on the Subduction of North Pacific Eastern Subtropical Mode Water".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 125.5(2020):15.
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