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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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