Sebille_et_al-2012-Geophysical_Research_Letters.pdf (639.96 kB)
Tasman leakage in a fine-resolution ocean model
journal contribution
posted on 2023-05-19, 09:06 authored by van Sebille, E, England, MH, Zika, JD, Bernadette SloyanBernadette SloyanTasman leakage, the westward flow of thermocline waters south of Australia from the Pacific to the Indian Ocean, is one of the lesser-studied of the inter-ocean exchanges. Here, some of the properties of the Tasman leakage are inferred from Lagrangian particles integrated using the three-dimensional velocity fields of the 1/10 degree resolution OFES model. The mean Tasman leakage in this model is 4.2 Sv, with a standard deviation of 4.3 Sv. The heat flux associated with this leakage lies in the range 0.08–0.18 PW. There is large variability in the Tasman leakage on both sub-weekly and inter-annual scales, but no trend over the 1983–1997 period. Despite the large weekly variability, with peaks of more than 20 Sv, it appears that less than half of the Tasman leakage is carried within eddies.
History
Publication title
Geophysical Research LettersVolume
39Issue
6Article number
L06601Number
L06601Pagination
1-5ISSN
0094-8276Department/School
Institute for Marine and Antarctic StudiesPublisher
Amer Geophysical UnionPlace of publication
2000 Florida Ave Nw, Washington, USA, Dc, 20009Rights statement
Copyright 2012 by the American Geophysical UnionRepository Status
- Open