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Atmospheric and Oceanic Optics

2015 year, number 6

Estimation of CO2 fluxes in the atmosphere-water system in the South Lake Baikal littoral by the floating chambers method

V.M. Domysheva1, D.A. Pestunov2,3, M.V. Sakirko1, A.M. Shamrin2, M.V. Panchenko2
1Limnological Institute of the Siberian Branch of the RAS, 3, Ulan-Batorskaya str., 664033, Irkutsk, Russia
2V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
3National Research Tomsk Polytechnic University, 30, Lenin Avenue, Tomsk, 634050, Russia
Keywords: carbon dioxide flux, atmosphere–water system, chamber method, Lake Baikal, total flux


In this paper, we discuss the applicability of the chamber method for measuring the fluxes of carbon dioxide between the atmosphere and water in the littoral of Lake Baikal. Its advantages and disadvantages are considered as well. A comparison of previously submitted data with observations in 20112014, in which there were dramatically different weather situations, is presented. It is shown that interannual variations of total CO2 fluxes is much less than its seasonal changes. It is shown that the annual flux of carbon dioxide from atmosphere to the water surface in littoral of Lake Baikal is at least 6.57 g per square meter in the "open water" period.