Dynamics of mesoscale eddies in the south-eastern Indian Ocean

Sharani Kodithuwakku Rayigam Korale Kodithuwakku A

doi:10.26182/5gqn-fk63

Dynamics of mesoscale eddies in the south-eastern Indian Ocean

Sharani Kodithuwakku Rayigam Korale Kodithuwakku A

Research output: Thesis › Doctoral Thesis

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Abstract

Statistics of mesoscale eddies (distribution, lifespan, generation regions, kinetic energy levels,vertical structure), with >50 km diameter, in the south-eastern Indian Ocean were developed usingsatellite altimeter derived geostrophic velocity data. Preferential eddy generation locations wereidentified offshore Kimberly, Barrow Island, Abrolhos Islands, Perth Canyon, south of Albany, andEsperance associated with coastline irregularities that also included seasonal and inter-annualvariability. Cyclonic and anti-cyclonic eddies were preferentially located offshore and inshore of theLeeuwin Current core respectively, due to vorticity generation. In the Perth canyon region, cyclonicand anti-cyclonic eddies consisted of contrasting vertical distributions in chlorophyll.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Pattiaratchi, Charitha, Supervisor Hetzel, Yasha, Supervisor Cosoli, Simone, Supervisor
Award date	4 Oct 2024
DOIs	https://doi.org/10.26182/5gqn-fk63
Publication status	Unpublished - 2024

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10.26182/5gqn-fk63

THESIS - DOCTOR OF PHILOSOPHY - RAYIGAM KORALE KODITHUWAKKU A Sharani Nishamika Kodithuwakku - 2024_
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Cite this

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title = "Dynamics of mesoscale eddies in the south-eastern Indian Ocean",

abstract = "Statistics of mesoscale eddies (distribution, lifespan, generation regions, kinetic energy levels,vertical structure), with >50 km diameter, in the south-eastern Indian Ocean were developed usingsatellite altimeter derived geostrophic velocity data. Preferential eddy generation locations wereidentified offshore Kimberly, Barrow Island, Abrolhos Islands, Perth Canyon, south of Albany, andEsperance associated with coastline irregularities that also included seasonal and inter-annualvariability. Cyclonic and anti-cyclonic eddies were preferentially located offshore and inshore of theLeeuwin Current core respectively, due to vorticity generation. In the Perth canyon region, cyclonicand anti-cyclonic eddies consisted of contrasting vertical distributions in chlorophyll.",

keywords = "mesoscale eddies, south−eastern Indian ocean, cyclonic eddies, anti-cyclonic eddies, seasonal and inter-annual variability, eddy tracks, structure of mesoscale eddies, ocean gliders",

author = "\{Rayigam Korale Kodithuwakku A\}, \{Sharani Kodithuwakku\}",

year = "2024",

doi = "10.26182/5gqn-fk63",

language = "English",

school = "The University of Western Australia",

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TY - BOOK

T1 - Dynamics of mesoscale eddies in the south-eastern Indian Ocean

AU - Rayigam Korale Kodithuwakku A, Sharani Kodithuwakku

PY - 2024

Y1 - 2024

N2 - Statistics of mesoscale eddies (distribution, lifespan, generation regions, kinetic energy levels,vertical structure), with >50 km diameter, in the south-eastern Indian Ocean were developed usingsatellite altimeter derived geostrophic velocity data. Preferential eddy generation locations wereidentified offshore Kimberly, Barrow Island, Abrolhos Islands, Perth Canyon, south of Albany, andEsperance associated with coastline irregularities that also included seasonal and inter-annualvariability. Cyclonic and anti-cyclonic eddies were preferentially located offshore and inshore of theLeeuwin Current core respectively, due to vorticity generation. In the Perth canyon region, cyclonicand anti-cyclonic eddies consisted of contrasting vertical distributions in chlorophyll.

AB - Statistics of mesoscale eddies (distribution, lifespan, generation regions, kinetic energy levels,vertical structure), with >50 km diameter, in the south-eastern Indian Ocean were developed usingsatellite altimeter derived geostrophic velocity data. Preferential eddy generation locations wereidentified offshore Kimberly, Barrow Island, Abrolhos Islands, Perth Canyon, south of Albany, andEsperance associated with coastline irregularities that also included seasonal and inter-annualvariability. Cyclonic and anti-cyclonic eddies were preferentially located offshore and inshore of theLeeuwin Current core respectively, due to vorticity generation. In the Perth canyon region, cyclonicand anti-cyclonic eddies consisted of contrasting vertical distributions in chlorophyll.

KW - mesoscale eddies

KW - south−eastern Indian ocean

KW - cyclonic eddies

KW - anti-cyclonic eddies

KW - seasonal and inter-annual variability

KW - eddy tracks

KW - structure of mesoscale eddies

KW - ocean gliders

U2 - 10.26182/5gqn-fk63

DO - 10.26182/5gqn-fk63

M3 - Doctoral Thesis

ER -

Dynamics of mesoscale eddies in the south-eastern Indian Ocean

Abstract

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