A census of eddies in the tropical eastern boundary of the Indian Ocean

Azis Ismail, M. F. and Ribbe, J. and Arifin, T. and Taofiqurohman, A. and Anggoro, D. (2021) A census of eddies in the tropical eastern boundary of the Indian Ocean. Journal of Geophysical Research: Oceans, 126 (6):e2021JC017204. ISSN 2169-9275

[img]
Preview
Text (Published Version)
2021JC017204.pdf
Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0.

Download (2MB) | Preview

Abstract

The Indo-Australian Basin (IAB) constitutes a crucial water route for the global ocean's circulation between the Pacific and Indian Oceans. Locally generated eddies contribute to the continued westward transport of water away from the IAB. In this paper, results from the first comprehensive regional ocean eddy census are discussed. A hybrid eddy census and tracking algorithm is used to analyze satellite altimetry data from 1993 to 2018. A total of 2,792 eddies were identified and tracked. Cyclonic eddies and anticyclonic eddies exhibit geographical segregation in terms of their dynamic characteristics. Larger amplitudes, radii, and absolute vorticities are associated with high eddy kinetic energy regions located in the vicinity of the South Java Current, South Equatorial Current, and Indonesian Throughflow. The eddies are grouped into three duration-based classifications providing the first systematic insight into understanding their physical characteristics, formation, and distribution in the IAB.


Statistics for USQ ePrint 43485
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2021. The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Sciences (6 Sep 2019 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Sciences (6 Sep 2019 -)
Date Deposited: 06 Sep 2021 03:12
Last Modified: 06 Sep 2021 03:12
Uncontrolled Keywords: Indian Ocean, eddy, Indo-Australian Basin, eddy census, global ocean circulation, Indonesian Throughflow
Fields of Research (2008): 04 Earth Sciences > 0405 Oceanography > 040503 Physical Oceanography
Fields of Research (2020): 37 EARTH SCIENCES > 3708 Oceanography > 370803 Physical oceanography
Socio-Economic Objectives (2008): D Environment > 96 Environment > 9699 Other Environment > 969902 Marine Oceanic Processes (excl. Climate Related)
Identification Number or DOI: https://doi.org/10.1029/2021JC017204
URI: http://eprints.usq.edu.au/id/eprint/43485

Actions (login required)

View Item Archive Repository Staff Only