Simultaneous measurement of water temperature and salinity using Raman spectroscopy
We present a method to simultaneously determine water temperature and salinity, which uses a pulsed excitation laser and a three-channel Raman spectrometer. The method relies on the systematic dependence of the Raman OH stretching band on temperature and salinity, and is compatible with LiDAR techni...
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| Veröffentlicht in: | Optics continuum 2024-06, Vol.3 (6), p.909 |
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| container_title | Optics continuum |
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| creator | Taylor, Carolyn J. Kitzler, Ondrej Curtis, Simon A. Neimann, Brad R. Dawes, Judith M. Downes, James E. Spence, David J. Pask, Helen M. |
| description | We present a method to simultaneously determine water temperature and salinity, which uses a pulsed excitation laser and a three-channel Raman spectrometer. The method relies on the systematic dependence of the Raman OH stretching band on temperature and salinity, and is compatible with LiDAR techniques. We have measured the variation of the OH stretching band in two seawater samples and a NaCl solution, and constructed a linear mapping between signal ratios derived from the three spectral channels and the temperature and salinity of each sample. For the natural seawater this approach has been determined by cross-validation to have a predictive accuracy of ±1.6 PSU and ±0.5 °C. |
| doi_str_mv | 10.1364/OPTCON.525963 |
| format | Article |
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| language | eng |
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| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| title | Simultaneous measurement of water temperature and salinity using Raman spectroscopy |
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