Mechanism of the Zonal Displacements of the Pacific Warm Pool: Implications for ENSO
The western equatorial Pacific warm pool is subject to strong east-west migrations on interannual time scales in phase with the Southern Oscillation Index. The dominance of surface zonal advection in this migration is demonstrated with four different current data sets and three ocean models. The eas...
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| Veröffentlicht in: | Science 1996-11, Vol.274 (5292), p.1486-1489 |
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| creator | Picaut, J. Ioualalen, M. Menkes, C. Delcroix, T. McPhaden, M. J. |
| description | The western equatorial Pacific warm pool is subject to strong east-west migrations on interannual time scales in phase with the Southern Oscillation Index. The dominance of surface zonal advection in this migration is demonstrated with four different current data sets and three ocean models. The eastward advection of warm and less saline water from the western Pacific together with the westward advection of cold and more saline water from the central-eastern Pacific induces a convergence of water masses at the eastern edge of the warm pool and a well-defined salinity front. The location of this convergence is zonally displaced in association with EI Niño-La Niña wind-driven surface current variations. These advective processes and water-mass convergences have significant implications for understanding and simulating coupled ocean-atmosphere interactions associated with EI Niño-Southern Oscillation (ENSO). |
| doi_str_mv | 10.1126/science.274.5292.1486 |
| format | Article |
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J.</creatorcontrib><title>Mechanism of the Zonal Displacements of the Pacific Warm Pool: Implications for ENSO</title><title>Science</title><addtitle>Science</addtitle><description>The western equatorial Pacific warm pool is subject to strong east-west migrations on interannual time scales in phase with the Southern Oscillation Index. The dominance of surface zonal advection in this migration is demonstrated with four different current data sets and three ocean models. The eastward advection of warm and less saline water from the western Pacific together with the westward advection of cold and more saline water from the central-eastern Pacific induces a convergence of water masses at the eastern edge of the warm pool and a well-defined salinity front. The location of this convergence is zonally displaced in association with EI Niño-La Niña wind-driven surface current variations. 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| fulltext | fulltext |
| identifier | ISSN: 0036-8075 |
| ispartof | Science, 1996-11, Vol.274 (5292), p.1486-1489 |
| issn | 0036-8075 1095-9203 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_00772206v1 |
| source | JSTOR Archive Collection A-Z Listing; American Association for the Advancement of Science |
| subjects | Advection AMBIENT TEMPERATURE ANNUAL VARIATIONS Atmospherics Buoys CONVERGENCE Earth Sciences Earth, ocean, space El Nino El Niño ENVIRONMENTAL SCIENCES Exact sciences and technology External geophysics Geophysics Global Changes Marine MATHEMATICAL MODELS Migration Ocean currents Ocean-atmosphere interaction Oceanography Oceans PACIFIC OCEAN Physics Physics of the oceans Salinity Saltwater Sciences of the Universe Sea-air exchange processes SOUTHERN OSCILLATION Surface water SURFACE WATERS Temperature Trajectories Water |
| title | Mechanism of the Zonal Displacements of the Pacific Warm Pool: Implications for ENSO |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-07T02%3A10%3A19IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Mechanism%20of%20the%20Zonal%20Displacements%20of%20the%20Pacific%20Warm%20Pool:%20Implications%20for%20ENSO&rft.jtitle=Science&rft.au=Picaut,%20J.&rft.date=1996-11-29&rft.volume=274&rft.issue=5292&rft.spage=1486&rft.epage=1489&rft.pages=1486-1489&rft.issn=0036-8075&rft.eissn=1095-9203&rft.coden=SCIEAS&rft_id=info:doi/10.1126/science.274.5292.1486&rft_dat=%3Cgale_osti_%3EA18965609%3C/gale_osti_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=213560307&rft_id=info:pmid/8929400&rft_galeid=A18965609&rft_jstor_id=2892213&rfr_iscdi=true |