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Proceedings Paper

Diurnal behavior of the carbon dioxide flux and change in the isotopic ratio δ13C in surface and near-bottom water in littoral of Lake Baikal
Author(s): Mikhail V. Panchenko; Valentina M. Domysheva; Natalia L. Padalko; Eugenii V. Chernikov; Maxim I. Prazdnichnykh; Alexander G. Tumakov; Dmitrii A. Pestunov
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Paper Abstract

Lake Baikal is one of the unique natural environments in Siberia which, to a large extent, affects the state of the nature in this region. The processes of gas exchange in the “water-atmosphere” system have been studied in Lake Baikal since 2002. The main purpose of the integrated investigations of exchange of carbon-containing gases in the water-atmosphere system in Lake Baikal is to study the contribution of physical, chemical, and biological components of the process and their interrelation with the intensity and rhythms of the fluxes. In 2013, the integrated measurements in the littoral area of Baikal were complemented with studies of the diurnal dynamics of isotopic ratio δ 13C in the surface and near-bottom water, which were not yet performed in Baikal before. In this work, we analyze first results of the joint analysis of СО2 fluxes in the “atmosphere - water surface” system and δ 13C, obtained in August 2013 in the littoral area of South Baikal. It is shown that d13C markedly increases in the surface waters at daylight time. In nighttime period, there takes place a reverse process, when δ 13C of the surface water approaches δ 13C, which is recorded for near-bottom water.

Paper Details

Date Published: 25 November 2014
PDF: 8 pages
Proc. SPIE 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 92922X (25 November 2014); doi: 10.1117/12.2075244
Show Author Affiliations
Mikhail V. Panchenko, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
Valentina M. Domysheva, Limnological Institute (Russian Federation)
Natalia L. Padalko, Siberian Scientific Research Institute of Geology, Geophysics and Mineral Raw Materials (Russian Federation)
Eugenii V. Chernikov, Siberian Scientific Research Institute of Geology, Geophysics and Mineral Raw Materials (Russian Federation)
Maxim I. Prazdnichnykh, Siberian Scientific Research Institute of Geology, Geophysics and Mineral Raw Materials (Russian Federation)
Alexander G. Tumakov, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
Dmitrii A. Pestunov, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)


Published in SPIE Proceedings Vol. 9292:
20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii, Editor(s)

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