Seasonal variation of the shape and location of the Luzon cold eddy

Ruili Sun; Peiliang Li; Yanzhen Gu; Chaojie Zhou; Cong Liu; Lin Zhang

doi:10.1007/s13131-022-2084-3

Volume 42 Issue 5

May 2023

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Ruili Sun, Peiliang Li, Yanzhen Gu, Chaojie Zhou, Cong Liu, Lin Zhang. Seasonal variation of the shape and location of the Luzon cold eddy[J]. Acta Oceanologica Sinica, 2023, 42(5): 14-24. doi: 10.1007/s13131-022-2084-3

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Ruili Sun, Peiliang Li, Yanzhen Gu, Chaojie Zhou, Cong Liu, Lin Zhang. Seasonal variation of the shape and location of the Luzon cold eddy[J]. Acta Oceanologica Sinica, 2023, 42(5): 14-24. doi: 10.1007/s13131-022-2084-3

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Seasonal variation of the shape and location of the Luzon cold eddy

doi: 10.1007/s13131-022-2084-3

Ruili Sun¹,
Peiliang Li^{1, 2
,
,},
Yanzhen Gu^{1, 2
,
,},
Chaojie Zhou¹,
Cong Liu¹,
Lin Zhang^{1, 2}

1.
Hainan Institute of Zhejiang University, Sanya 572024, China
2.
Ocean College, Zhejiang University, Zhoushan 316021, China

Funds: The 2022 Research Program of Sanya Yazhou Bay Science and Technology City under contract No. SKJC-2022-01-001; the Project of Sanya Yazhou Bay Science and Technology City under contract No. SCKJ-JYRC-2022-47; the National Natural Science Foundation of China under contract No. 41806019; the Natural Science Foundation of Hainan Province under contract No. 121MS062; the National Natural Science Foundation of China under contract Nos 42006008 and 41876031; the National Key Research and Development Plan of China under contract No. 2016YFC1401603; the Research Startup Funding from Hainan Institute of Zhejiang University under contract No. HZY20210801.

More Information

Corresponding author: lipeiliang@zju.edu.cn; guyanzhen@zju.edu.cn
Received Date: 2022-05-04
Accepted Date: 2022-07-29

Available Online: 2023-03-30

Publish Date: 2023-05-25

Abstract

Abstract

Using observational data from multiple satellites, we studied seasonal variations of the shape and location of the Luzon cold eddy (LCE) northwest of Luzon Island. The shape and location of the LCE have obvious seasonal variations. The LCE occurs, develops, and disappears from December to April of the next year. During this period, the shape of the LCE changed from a flat ellipse to a circular ellipse, and the change in shape can be reflected by the increase of the ellipticity of the LCE from 0.16 to 0.82. The latitude of center location of the LCE changes from 17.4°N to 19°N, and the change in latitude can reach 1.6°. Further study showed that seasonal variation of the northeast monsoon intensity leads to the change in the shape and location of the LCE. The seasonal variation of the LCE shape can significantly alter the spatial distribution of the thermal front and chlorophyll a northwest of the Luzon Island by geostrophic advection.
- Luzon cold eddy,
- seasonal variation,
- shape and location,
- thermal front,
- chlorophyll a concentration

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References(46)

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