Development and validation of the new ProvBioII float
| Type | Article | ||||||||
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| Date | 2013-06 | ||||||||
| Language | English | ||||||||
| Author(s) | Leymarie Edouard1, 2, Poteau Antoine1, 2, Andre Xavier 4, Besson F1, 2, Brault Patrice3, Claustre Herve1, 2, David Arnaud3, D'Ortenzio Fabrizio1, 2, Dufour A1, 2, Lavigne Heloise1, 2, Le Reste Serge4, Le Traon Pierre-Yves5, Migon Christophe1, 2, Nogre David3, Obolensky G1, 2, Penkerc'h C1, 2, Sagot Jerome3, Schaeffer Christophe3, Schmechtig C2, 6, Taillandier V1, 2 |
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| Affiliation(s) | 1 : CNRS, UMR 7093, Laboratoire d’Océanographie de Villefranche, Villefranche sur-Mer, France 2 : Université Pierre et Marie Curie-Paris 6, UMR 7093, Laboratoire d’Océanographie de Villefranche, Villefranche-sur-Mer, France 3 : NKE Instrumentation, Z.I. de Kerandré, Rue Gutenberg, 56700 HENNEBONT, France 4 : IFREMER, Département Recherches et Développements Technologiques, Service Electronique, Informatique et Mesures in situ, Centre de Brest, BP 70, Plouzané, France 5 : IFREMER & MERCATOR OCEAN, 8-10 rue Hermès Parc Technologique du Canal, 31520 RAMONVILLE ST AGNE, France 6 : CNRS, UMS 829, Observatoire océanologique de Villefranche-sur-Mer, Villefranche sur-Mer, France |
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| Source | Mercator Ocean - quaterly newsletter (Mercator Ocean), 2013-06 , Vol. 48 , P. 26-30 | ||||||||
| Abstract | In the last ten years, a productive collaboration has grown between the Laboratoire d’Océanographie de Villefranche (LOV), NKE and IFREMER to implement biogeochemical sensors on profiling floats. A first project (2003) was dedicated to the design of the so-called ProvBio floats (models A and B) that consisted of a PROVOR-CTS3 float instrumented with three new optical sensors: a Wetlabs transmissometer (C-Rover), a 3-wavelength Satlantic radiometer (OCR-503) and an “ECO3” Wetlabs sensor, measuring chlorophyll-a fluorescence, colored dissolved organic matter and particle backscattering coefficients (see First Success of ProvBio floats, Coriolis Letter n°5). Then, the integration of biogeochemical sensors continued in the framework of ProNuts project (2009, autonomously profiling the nitrate concentrations in the ocean: the pronuts project, Coriolis Letter n°8), by equipping a PROVOR with a nitrate concentration sensor. In parallel within the framework of the Carbocean EU project, the ProvCarbon and ProvDo floats were developed as in 2006 by fitting on a PROVOR a C-Rover and a 3830 Aanderaa optode, respectively. They were used to investigate new tools to assess marine carbon sources and sinks. These initial developments have led to a first invaluable dataset and to subsequent papers (Xing et al. 2012, Xing et al. 2011) and report (IOCCG 2011). Nevertheless, the above projects have grown partially dissociated, as related to specific and project-related needs, while a more integrated solution may have a lot of advantages. Undoubtedly, the scientific exploitation of data would be strongly improved if a unique multidisciplinary float, able to measure all accessible parameters, was available. Such a multidisciplinary float would also strongly reduce costs, by sharing the float itself, and by reducing deployment, validation and communication costs. The idea to merge all these sensors on the same profiling float was thus at the origin of the ProvBioII float project, which was developed in the framework of the remOcean and NAOS programs. |
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