Analysis of black-hole eddy on material transport in the western Pacific

Tian Fenglin; Yang Xiaokun; Liu Xiao; He Qiu; Chen Ge

doi:10.12284/hyxb2021163

Volume 43 Issue 12

Dec. 2021

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Tian Fenglin，Yang Xiaokun，Liu Xiao, et al. Analysis of black-hole eddy on material transport in the western Pacific[J]. Haiyang Xuebao，2021, 43(12)：1–14 doi: 10.12284/hyxb2021163

Citation:

Tian Fenglin，Yang Xiaokun，Liu Xiao, et al. Analysis of black-hole eddy on material transport in the western Pacific[J]. Haiyang Xuebao，2021, 43(12)：1–14 doi: 10.12284/hyxb2021163

Citation:

Tian Fenglin，Yang Xiaokun，Liu Xiao, et al. Analysis of black-hole eddy on material transport in the western Pacific[J]. Haiyang Xuebao，2021, 43(12)：1–14 doi: 10.12284/hyxb2021163

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Analysis of black-hole eddy on material transport in the western Pacific

doi: 10.12284/hyxb2021163

Tian Fenglin^{1, 2
,},
Yang Xiaokun¹,
Liu Xiao¹,
He Qiu¹,
Chen Ge^{1, 2
,
,}

1.
Department of Marine Technology, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
2.
Regional Ocean Dynamics and Numerical Simulation Functional Laboratory, Pilot National Laboratory of Marine Science and Technology (Qingdao), Qingdao 266237, China

Received Date: 2020-08-06
Rev Recd Date: 2020-12-28

Available Online: 2021-09-02

Publish Date: 2021-12-30

Abstract

Abstract

Black-hole eddy can be extracted based on elliptic Lagrangian Coherent Structures (eLCSs), which can transport material and maintain coherent under geostrophic for a long time. It was similar to the black hole in the ocean, so it was called black-hole eddy. In this paper, the boundary of black-hole eddy was extracted based on the data of the geostrophic flow velocity field. Using the method of eLCSs and choosing a targeted eddy (Eddy A) in the western Pacific to analyze. Sea surface temperature, sea surface salinity and chlorophyll concentration data are used to verify that the Eddy A is coherent in horizontal material transport. The temperature, salinity and dissolved oxygen data obtained by Argo in different depths are used to prove the coherence in vertical of Eddy A. The result demonstrates that the boundary of black-hole eddy is more coherent than Eulerian boundary in a long time scale and can describe the transport of material more objectively.
- black-hole eddy,
- coherence,
- material transport,
- three-dimensional structures

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References(35)

References

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