Articles | Volume 14, issue 2
Ocean Sci., 14, 321–335, 2018

Special issue: REP14-MED: A Glider Fleet Experiment in a Limited Marine...

Ocean Sci., 14, 321–335, 2018

Research article 26 Apr 2018

Research article | 26 Apr 2018

High-resolution observations in the western Mediterranean Sea: the REP14-MED experiment

Reiner Onken1, Heinz-Volker Fiekas2, Laurent Beguery3, Ines Borrione4, Andreas Funk2, Michael Hemming5,10, Jaime Hernandez-Lasheras9, Karen J. Heywood5, Jan Kaiser5, Michaela Knoll2, Baptiste Mourre9, Paolo Oddo4, Pierre-Marie Poulain6, Bastien Y. Queste5, Aniello Russo4, Kiminori Shitashima7, Martin Siderius8, and Elizabeth Thorp Küsel8 Reiner Onken et al.
  • 1Helmholtz-Zentrum Geesthacht Centre for Materials und Coastal Research (HZG), Max-Planck-Straße 1, 21502 Geesthacht, Germany
  • 2Wehrtechnische Dienststelle für Schiffe und Marinewaffen, Maritime Technologie und Forschung (WTD71), Berliner Straße 115, 24340 Eckernförde, Germany
  • 3ALSEAMAR, 9 Europarc Sainte Victoire, 13590 Meyreuil, France
  • 4Centre for Maritime Research and Experimentation (CMRE), Viale San Bartolomeo 400, 19126 La Spezia, Italy
  • 5Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences, University of East Anglia (UEA), Norwich Research Park, Norwich, NR4 7TJ, UK
  • 6Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Borgo Grotta Gigante 42/c, 34010 Sgonico, Trieste, Italy
  • 7Kyushu University, International Institute for Carbon-Neutral Energy Research (I2CNER), Fukuoka 819-0395, Japan
  • 8Portland State University (PSU), P.O. Box 751, Portland, OR 97207-0751, USA
  • 9Sistema de Observación Costero de las Islas Balears (SOCIB), Parc Bit, Naorte, 07121 Palma de Mallorca, Spain
  • 10Laboratoire d'Océanographie et du Climat, 4, Place Jussieu, 75005 Paris, France

Abstract. The observational part of the REP14-MED experiment was conducted in June 2014 in the Sardo-Balearic Basin west of Sardinia (western Mediterranean Sea). Two research vessels collected high-resolution oceanographic data by means of hydrographic casts, towed systems, and underway measurements. In addition, a vast amount of data was provided by a fleet of 11 ocean gliders, time series were available from moored instruments, and information on Lagrangian flow patterns was obtained from surface drifters and one profiling float. The spatial resolution of the observations encompasses a spectrum over 4 orders of magnitude from 𝒪(101 m) to 𝒪(105 m), and the time series from the moored instruments cover a spectral range of 5 orders from 𝒪(101 s) to 𝒪(106 s). The objective of this article is to provide an overview of the huge data set which has been utilised by various studies, focusing on (i) water masses and circulation, (ii) operational forecasting, (iii) data assimilation, (iv) variability of the ocean, and (v) new payloads for gliders.

Short summary
In June 2014, high-resolution oceanographic data were collected in the western Mediterranean Sea by two research vessels, 11 gliders, moored instruments, drifters, and one profiling float. The objective of this article is to provide an overview of the data set which is utilised by various ongoing studies, focusing on (i) water masses and circulation, (ii) operational forecasting, (iii) data assimilation, (iv) variability of the ocean, and (v) new payloads for gliders.