Raman Scattering and Fluorescence Spectra of Water
from the Sea Surface Microlayer

V. V. Fadeev^a, S. A. Burikov^a, P. A. Volkov^a, V. B. Lapshin^b, and A. V. Syroeshkin^b

^a Faculty of Physics, Moscow State University, Moscow, Russia

^b State Oceanographic Institute, Moscow, Russia

E-mail: fadeev@lid.phys.msu.ru

Received January 15, 2007; in final form, August 1, 2007

Abstract—The Raman scattering and fluorescence spectra were first obtained for the water of sea surface
microlayers (SML) of 1 and 0.2 mm thickness (sampled with a Garrett net and a Lapshin capillary sampler,
respectively). For reference, samples of water below the SML (from the layer of 0.5 m) were also taken. Sub-
stantial differences were found for the values of the normalized intensity of the fluorescence (the number of
photons from the volume unit in response to a unit of excitation) between the aqueous humic substances and,
presumably, oil hydrocarbons and proteins. Some slight but analyzable differences in the shapes and location
of spectral bands were also found. These latter allow one to determine the content of salts and the characteristics
of complicated organic compounds in the SML and to compare them to those within the water volume.

DOI: 10.1134/S0001437009020052

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