Ocean state indicators from MyOcean altimeter products 1AS$+$ EOLEN, 5 avenue Didier Daurat, 31400 Toulouse, France
12 Jun 2013
2CLS-DOS, 8-10 rue Hermès – Parc Technologique du canal, 31250 Ramonville Saint Agne, France
Received: 01 Mar 2012 – Published in Ocean Sci. Discuss.: 24 May 2012Abstract. The European MyOcean project (http://www.myocean.eu.org) provides
observations of the ocean dynamic topography from altimeter measurements.
Three specific indicators have been developed, based on altimeter data only,
in order to monitor the ocean state. The first ocean indicator observes the
positive and negative phases of the ENSO events in the tropical Pacific, the
El Niño/La Niña events, since 1992. The second ocean indicator tracks
the contracted or extended state of the Kuroshio Extension. The last ocean
indicator is dedicated to the Ionian Basin in the Mediterranean Sea and
permits separation of "zonal-cyclonic" state (1998–2005 and since 2011 up to
now) from the "anticyclonic" state (1993–1996) usually discussed in the
literature. In addition, it allows identifying a third state in which both
the anticyclonic circulation around the northern part of the basin and the
strong zonal Mid-Ionian Jet co-exist (2008–2010).
Revised: 17 Apr 2013 – Accepted: 26 Apr 2013 – Published: 12 Jun 2013
Citation: Bessières, L., Rio, M. H., Dufau, C., Boone, C., and Pujol, M. I.: Ocean state indicators from MyOcean altimeter products, Ocean Sci., 9, 545-560, doi:10.5194/os-9-545-2013, 2013.