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dc.contributor.authorDeng, Xiaolien_US
dc.contributor.authorHwang, Cheinwayen_US
dc.contributor.authorColeman, Richarden_US
dc.contributor.authorFeatherstone, Will E.en_US
dc.date.accessioned2014-12-08T15:44:08Z-
dc.date.available2014-12-08T15:44:08Z-
dc.date.issued2008-04-01en_US
dc.identifier.issn1017-0839en_US
dc.identifier.urihttp://dx.doi.org/10.3319/TAO.2008.19.1-2.135(SA)en_US
dc.identifier.urihttp://hdl.handle.net/11536/29809-
dc.description.abstractThe Leeuwin Current (LC) is an eastern boundary current flowing strongly southwards along the Western Australian coastline. The current varies seasonally, with weaker southwards flow occurring during the austral summer (November to March), when southerly winds are strongest. Nearly 9.5 years of TOPEX/Poseidon-derived sea-surface heights, in conjunction with the AUSGeoid98 gravimetric geoid model, have been used to investigate the temporal characteristics of the LC over the area bounded by 20 to 45 degrees S and 108 to 130 degrees E. The ocean dynamic height associated with the LC is used to compute the geostrophic parameters of volume transport, axis velocity, height jump, width, and axis locations of the current: These parameter estimates are then used to analyse the seasonal and interannual variability of the LC, as well as effects related to the El Nino Southern Oscillation (ENSO). Our results show that the LC is highly variable in terms of seasonal volume transport and is closely linked to ENSO events at interannual time-scales. Seasonally, when assuming an averaged isobath of 80 m, the LC has maximum volume transport of up to -7.2 Sv (10(6) m(3) s(-1), a negative sign means southwards transport) in April - June and -8.4 Sv in May - August in regions west and south of Western Australia, respectively. Inter-annually, the LC has higher volume transports than the average transport during 1993 - 2003 in most La Nina years, and the opposite in most El Nino years, which is linked to inter-basin exchange between the Pacific and Indian Oceans.en_US
dc.language.isoen_USen_US
dc.subjectTOPEX/Poseidonen_US
dc.subjectsatellite altimetryen_US
dc.subjectLeeuwin Currenten_US
dc.subjectgeostrophic parametersen_US
dc.subjectENSOen_US
dc.subjectocean-surface currentsen_US
dc.subjectWestern Australiaen_US
dc.titleSeasonal and interannual variations of the Leeuwin Current off Western Australia from TOPEX/Poseidon satellite altimetryen_US
dc.typeArticle; Proceedings Paperen_US
dc.identifier.doi10.3319/TAO.2008.19.1-2.135(SA)en_US
dc.identifier.journalTERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCESen_US
dc.citation.volume19en_US
dc.citation.issue1-2en_US
dc.citation.spage135en_US
dc.citation.epage149en_US
dc.contributor.department土木工程學系zh_TW
dc.contributor.departmentDepartment of Civil Engineeringen_US
dc.identifier.wosnumberWOS:000255856500014-
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