A Strong Kuroshio Intrusion into the South China Sea and Its Accompanying Cold-Core Anticyclonic Eddy in Winter 2020–2021
Abstract
:1. Introduction
2. Materials and Methods
3. Results
3.1. DI Performance
3.2. Detailed Evolution
3.3. Surface Cold-Core Structure
3.4. Verification by Drifters
4. Discussion
4.1. Wind Forcing
4.2. Impinging Mesoscale Eddies
4.3. Mechanism for the Surface Cold-Core Structure
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Drifter No. | Deployment Date | Deployment Longitude | Deployment Latitude | End Date 1 |
---|---|---|---|---|
1485503 | 24 December 2020 | 120.0°E | 21.8°N | 30 January 2021 |
1485504 | 24 December 2020 | 120.5°E | 21.3°N | 31 March 2021 |
1485505 | 26 December 2020 | 121.0°E | 21.3°N | 15 February 2021 |
1485506 | 26 December 2020 | 121.5°E | 21.3°N | 30 January 2021 |
1485508 | 26 December 2020 | 122.0°E | 21.3°N | 30 January 2021 |
1485513 | 26 December 2020 | 122.5°E | 21.3°N | 31 March 2021 |
1485518 | 26 December 2020 | 123.0°E | 21.3°N | 30 January 2021 |
1485593 | 26 December 2020 | 123.5°E | 21.3°N | 8 January 2021 |
Event No. | Start Date | End Date | Period (day) | Minimum KWI 1 | Integral KWI 2 |
---|---|---|---|---|---|
1 | 2 November 1994 | 10 January 1995 | 69 | −3.82 | −212.6 |
2 | 22 February 1996 | 4 May 1996 | 72 | −4.43 | −230.8 |
3 | 30 October 1996 | 8 January 1997 | 70 | −4.96 | −269.2 |
4 | 18 January 1999 | 12 March 1999 | 53 | −3.49 | −164.3 |
5 | 20 December 1999 | 14 February 2000 | 56 | −3.55 | −165.1 |
6 | 27 November 2011 | 24 January 2012 | 58 | −4.89 | −217.8 |
7 | 24 November 2016 | 10 February 2017 | 78 | −4.35 | −274.5 |
8 | 8 November 2019 | 5 January 2020 | 58 | −4.76 | −190.7 |
9 | 4 December 2020 | 4 March 2021 | 90 | −4.38 | −316.0 |
Wang et al. [11] | Guo et al. [14] | Jia et al. [15] | Nan et al. [16] | Wang et al. [17] | Present Study | |
---|---|---|---|---|---|---|
Diameter 1 | A: 244 | A: 225 | A: 160 | A: 128 | A: 166 | 381 |
- | M: 300 | M: 200 | M: 162 | M: 320 | ||
Amplitude 2 | A: 12 | - | - | A: 12 | A: 11 | 50 |
M: 32 | - | - | M: 20 | M: 47 | ||
Distance 3 | A: 195 | - | - | A: 433 | A: 218 | >820 |
- | - | - | M: 1879 | M: 1020 | ||
Lifespan 4 | A: 108 | - | - | A: 75 | A: 29 | >182 |
- | M: 57 | - | M: 273 | M: 135 | ||
Speed 5 | A: 2.1 | A: 4.5 | A: 10.0 | A: 6.4 | A: 8.3 | 5.2 |
- | M: 9.0 | M: 16.0 | M: 11.0 | M: 35.0 |
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Sun, Z.; Hu, J.; Chen, Z.; Zhu, J.; Yang, L.; Chen, X.; Wu, X. A Strong Kuroshio Intrusion into the South China Sea and Its Accompanying Cold-Core Anticyclonic Eddy in Winter 2020–2021. Remote Sens. 2021, 13, 2645. https://doi.org/10.3390/rs13142645
Sun Z, Hu J, Chen Z, Zhu J, Yang L, Chen X, Wu X. A Strong Kuroshio Intrusion into the South China Sea and Its Accompanying Cold-Core Anticyclonic Eddy in Winter 2020–2021. Remote Sensing. 2021; 13(14):2645. https://doi.org/10.3390/rs13142645
Chicago/Turabian StyleSun, Zhenyu, Jianyu Hu, Zhaozhang Chen, Jia Zhu, Longqi Yang, Xirong Chen, and Xuewen Wu. 2021. "A Strong Kuroshio Intrusion into the South China Sea and Its Accompanying Cold-Core Anticyclonic Eddy in Winter 2020–2021" Remote Sensing 13, no. 14: 2645. https://doi.org/10.3390/rs13142645