The authors wish to thank Claudia Schmid and Elizabeth Forteza (AOML), Taiyo Kobayashi (JAMSTEC), Mizuho Hoshimoto (JMA), Ann Thresher (CSIRO), Udaya Bhaskar (INCOIS), Mathieu Ouellet and Anh Tran (MEDS), Justin Buck and Sam Jones (BODC), Pil-Hun Chang (KMA), Liu Zenghong (CSIO), Moon-Sik Suk (KORDI), and Thierry Carval and Vincent Bernard (Coriolis) for sharing their data and cooperating strongly with us. We owe much to John Gilson (SIO), Breck Owens (WHOI), and Serge Le Reste (IFREMER) who introduced us to the SIO SOLO, WHOI SOLO, and PROVOR subtleties. Brian King’s (NOCS) support was helpful in convincing IFREMER to support this study, following an initial suggestion from Pierre-Yves Le Traon (Ifremer). Last but not least, we could not conclude without thinking of our passed colleague Gérard Loaëc, who was the main designer of the PROVOR float: this study is a tribute to his memory.
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AOML Argo data for 2009, not processed at the time of this paper writing, are now included in ANDRO (29 November 2012 update).