IOCAS-IR
Decadal Variability of North Pacific Eastern Subtropical Mode Water
Guo, Yongqing1,2; Lin, Xiaopei1,2; Wei, Meng3,4; Liu, Cong1,2; Men, Guang5
2018-09-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
Volume123Issue:9Pages:6189-6206
Corresponding AuthorLin, Xiaopei(linxiaop@ouc.edu.cn)
AbstractA significant decadal variability of the North Pacific Eastern Subtropical Mode Water (NPESTMW), related to the Pacific Decadal Oscillation, is identified from the gridded Argo and EN4 observational data sets. To investigate the decadal variability of the NPESTMW volume, the high-resolution Estimating the Circulation and Climate of the Ocean, Phase II simulation is used to diagnose the volume budget of the NPESTMW density layer in the NPESTMW formation region (20 degrees-36 degrees N, 160 degrees-120 degrees W) between 1992 and 2016. Results show that NPESTMW is formed through subduction of low potential vorticity (PV) water. This low-PV water subduction is mainly determined by mixed layer depth change and lateral induction, which account for approximately 58% and 32%, respectively. The decadal NPESTMW volume anomaly is originated from the Pacific Decadal Oscillation-induced decadal anomaly of air-sea buoyancy flux. This decadal buoyancy flux anomaly drives the decadal anomaly of mixed layer depth change, then causes anomalous subduction, and leads to anomalous low-PV water subduction. The decadal NPESTMW volume anomaly is finally generated by this anomalous low-PV water subduction.
DOI10.1029/2018JC013890
Indexed BySCI
Language英语
Funding ProjectChina's National Key Research and Development projects[2016YFA0601803] ; National Natural Science Foundation of China[41490641] ; National Natural Science Foundation of China[41521091] ; National Natural Science Foundation of China[U1606402] ; Qingdao National Laboratory for Marine Science and Technology[2017ASKJ01]
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000447552600010
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/160457
Collection中国科学院海洋研究所
Corresponding AuthorLin, Xiaopei
Affiliation1.Ocean Univ China, CIMST, Phys Oceanog Lab, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
3.State Ocean Adm, Inst Oceanog 1, Qingdao, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China
5.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
Recommended Citation
GB/T 7714
Guo, Yongqing,Lin, Xiaopei,Wei, Meng,et al. Decadal Variability of North Pacific Eastern Subtropical Mode Water[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2018,123(9):6189-6206.
APA Guo, Yongqing,Lin, Xiaopei,Wei, Meng,Liu, Cong,&Men, Guang.(2018).Decadal Variability of North Pacific Eastern Subtropical Mode Water.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,123(9),6189-6206.
MLA Guo, Yongqing,et al."Decadal Variability of North Pacific Eastern Subtropical Mode Water".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 123.9(2018):6189-6206.
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