Impact of fluorescence on Raman remote sensing of temperature in natural water samples

Andréa De Lima Ribeiro, Christopher Artlett, Penelope A. Ajani, Caro Derkenne, Helen Pask

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A comprehensive investigation into the impact of spectral baseline on temperature prediction in natural marine water samples by Raman spectroscopy is presented. The origin of baseline signals is investigated using principal component analysis and phytoplankton cultures in laboratory experiments. Results indicate that fluorescence from photosynthetic pigments and dissolved organic matter may overlap with the Raman peak for 532 nm excitation and compromise the accuracy of temperature predictions. Two methods of spectral baseline correction in natural waters are evaluated: a traditional tilted baseline correction and a new correction by temperature marker values, with accuracies as high as ± 0.2°C being achieved in both cases.

LanguageEnglish
Pages22339-22351
Number of pages13
JournalOptics Express
Volume27
Issue number16
DOIs
Publication statusPublished - 5 Aug 2019

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remote sensing
fluorescence
water
dissolved organic matter
phytoplankton
principal components analysis
predictions
pigments
markers
temperature
Raman spectroscopy
excitation

Cite this

De Lima Ribeiro, Andréa ; Artlett, Christopher ; Ajani, Penelope A. ; Derkenne, Caro ; Pask, Helen. / Impact of fluorescence on Raman remote sensing of temperature in natural water samples. In: Optics Express. 2019 ; Vol. 27, No. 16. pp. 22339-22351.
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De Lima Ribeiro, A, Artlett, C, Ajani, PA, Derkenne, C & Pask, H 2019, 'Impact of fluorescence on Raman remote sensing of temperature in natural water samples', Optics Express, vol. 27, no. 16, pp. 22339-22351. https://doi.org/10.1364/OE.27.022339

Impact of fluorescence on Raman remote sensing of temperature in natural water samples. / De Lima Ribeiro, Andréa; Artlett, Christopher; Ajani, Penelope A.; Derkenne, Caro; Pask, Helen.

In: Optics Express, Vol. 27, No. 16, 05.08.2019, p. 22339-22351.

Research output: Contribution to journalArticleResearchpeer-review

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