Deep ocean impact of a Madden-Julian oscillation observed by Argo floats

Matthews, Adrian J. ORCID: https://orcid.org/0000-0003-0492-1168, Singhruck, Patama and Heywood, Karen J. ORCID: https://orcid.org/0000-0001-9859-0026 (2007) Deep ocean impact of a Madden-Julian oscillation observed by Argo floats. Science, 318 (5857). pp. 1765-1769. ISSN 0036-8075

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Abstract

Using the new Argo array of profiling floats that gives unprecedented space-time coverage of the upper 2000 meters of the global ocean, we present definitive evidence of a deep tropical ocean component of the Madden-Julian Oscillation (MJO). The surface wind stress anomalies associated with the MJO force eastward-propagating oceanic equatorial Kelvin waves that extend downward to 1500 meters. The amplitude of the deep ocean anomalies is up to 6 times the amplitude of the observed annual cycle. This deep ocean sink of energy input from the wind is potentially important for understanding phenomena such as El Nino-Southern Oscillation and for interpreting deep ocean measurements made from ships.

Item Type: Article
Additional Information: mid:10886 dc:ueastatus:post-print formatted dc:ueahesastaffidentifier:9911170001058
Faculty \ School: Faculty of Science > School of Environmental Sciences
Depositing User: Vishal Gautam
Date Deposited: 14 Dec 2007
Last Modified: 24 Oct 2022 01:26
URI: https://ueaeprints.uea.ac.uk/id/eprint/16933
DOI: 10.1126/science.1147312

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