Eulerian and Lagrangian eddy statistics of the Tasman Sea and southwest Pacific Ocean

Show simple item record Chiswell, SM en Rickard, GR en Bowen, Melissa en 2012-03-01T22:22:07Z en 2007 en
dc.identifier.citation Journal of Geophysical Research 112:C10004 2007 en
dc.identifier.issn 0148-0227 en
dc.identifier.uri en
dc.description.abstract Ocean eddy variability dominates many important processes in the ocean at a range of length and timescales. We describe the eddy statistics in the Tasman Sea–New Zealand region using drifter data from the Global Drifter Program (GDP) to derive Lagrangian statistics and TOPEX/Poseidon (T/P) satellite data to derive Eulerian statistics. The ratio h of the Lagrangian to Eulerian timescales is also a measure of length scales in the ocean; when h is high, Lagrangian length scales are short compared with Eulerian length scales and vice versa. We compute h both in the time domain from temporal autocorrelations of drifter and satellite data, and in the frequency domain from drifter and satellite velocity spectra. The zonal component of this ratio appears to be constant in the Tasman Sea, whereas the meridional component shows a latitudinal dependence. We argue that if h is known, all Eulerian and Lagrangian timescales can be determined from relatively easy measurements of the Eulerian timescale and eddy kinetic velocity. en
dc.publisher American Geophysical Union. en
dc.relation.ispartofseries Journal of Geophysical Research en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
dc.rights.uri en
dc.title Eulerian and Lagrangian eddy statistics of the Tasman Sea and southwest Pacific Ocean en
dc.type Journal Article en
dc.identifier.doi 10.1029/2007JC004110 en
pubs.begin-page C10004 en
pubs.volume 112 en
dc.rights.holder Copyright: American Geophysical Union. en en
pubs.end-page C10004 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 288932 en Science en School of Environment en
pubs.record-created-at-source-date 2012-02-08 en

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