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Advances in measuring ocean salinity with an optical sensor ArchiMer
Le Menn, Marc; De La Tocnaye, J. L. De Bougrenet; Grosso, P.; Delauney, Laurent; Podeur, Christian; Brault, P.; Guillerme, O..
Absolute salinity measurement of seawater has become a key issue in thermodynamic models of the oceans. One of the most direct ways is to measure the seawater refractive index which is related to density and can therefore be related to the absolute salinity. Recent advances in high resolution position sensitive devices enable us to take advantage of small beam deviation measurements using refractometers. This paper assesses the advantages of such technology with respect to the current state-of-the-art technology. In particular, we present the resolution dependence on refractive index variations and derive the limits of such a solution for designing seawater sensors well suited for coastal and deep-sea applications. Particular attention has been paid to...
Tipo: Text Palavras-chave: Refractive index; Seawater; Density; Salinity; Refractometer.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00052/16295/13899.pdf
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Développement et essais d’un salinomètre optique pour l’océanographie ArchiMer
Le Menn, Monique; Malardé, Damien; David, Arnaud; Brault, Patrice; Grosso, Philippe; De Bougrenet De La Tocnaye, Jean-louis; Le Reste, Serge; Podeur, Christian.
Salinity is the essential parameter for ocean dynamics studies. Its definition and using in the equations used to calculate the thermodynamic properties of seawater, were revised in 2010, opening the possibility of new sensors developments. In this context, NOSS (NKE Optical Salinity Sensor) has emerged as one of the first underwater instrument for in situ refractive index measurement in the past years open up the scope of possibilities to access to density parameter. This achievement is the fruit of the cooperation between several institutions and the fruit of several years of developments and trials. NOSS sensor is designed to be deployed in coastal environment and open-ocean waters up to 2000m, especially on profiling floats of the Argo network.
Tipo: Text Palavras-chave: Salinity; Density; Ocean; Seawater; Refractive index; Sensor..
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00664/77601/79616.pdf
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Surface Plasmon Resonance sensors for oceanography ArchiMer
Colas, Florent.
Tipo: Text Palavras-chave: Absolute salinity; Biosensor; Molecular sensor; Refractive index; Surface functionalization; Surface plasmon resonance..
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00630/74235/73866.pdf
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