Email this article Dynamics of dissolved inorganic carbon and co2 fluxes between water and atmosphere in the main channel of the ob river
- Authors: Pipko I.I.1, Pugach S.P.1, Savichev O.G.2, Repina I.A.3, Shakhova N.E.2, Moiseeva Y.A.2, Barskov K.V.3, Sergienko V.I.4, Semiletov I.P.1,2
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Affiliations:
- Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences
- National Research Tomsk Polytechnic University
- Obukhov Institute of Atmospheric Physics of the Russian Academy of Sciences
- Far East Branch of Russian Academy of Sciences
- Issue: Vol 484, No 6 (2019)
- Pages: 691-697
- Section: Chemistry
- URL: https://journals.eco-vector.com/0869-5652/article/view/12847
- DOI: https://doi.org/10.31857/S0869-56524846691-697
- ID: 12847
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Abstract
The results of investigation of the carbonate system parameters dynamics in the middle and lower reaches of the Ob River in July 2016 were analyzed. The distributions of the carbonate characteristics of the river waters were found to follow a steady latitudinal trend determined by the landscape-geochemical conditions of the drainage basin and by the permafrost distribution. The first field data on the magnitude and direction of the CO2 fluxes in the river water-atmosphere system in this region were presented. It was shown that the waters in the middle and lower reaches of the river are multiply supersaturated with CO2 with respect to its atmospheric content, and the daily average evasion reaches 625,9 mmol m-2 day-1 at an average value of 102,1 mmol m-2 day-1. It was determined that the waters of the Ob River in the studied reaches are a significant CO2 source to the atmosphere; according to conservative estimates, the total flux in July was 2 ⋅ 1011 g of carbon in the form of CO2.
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About the authors
I. I. Pipko
Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences
Author for correspondence.
Email: irina@poi.dvo.ru
Russian Federation, 43, Baltiyskaya Street, Vladivostok, 690041
S. P. Pugach
Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences
Email: irina@poi.dvo.ru
Russian Federation, 43, Baltiyskaya Street, Vladivostok, 690041
O. G. Savichev
National Research Tomsk Polytechnic University
Email: irina@poi.dvo.ru
Russian Federation, Tomsk
I. A. Repina
Obukhov Institute of Atmospheric Physics of the Russian Academy of Sciences
Email: irina@poi.dvo.ru
Russian Federation, 3, Pizevsky, Moscow, 119017
N. E. Shakhova
National Research Tomsk Polytechnic University
Email: irina@poi.dvo.ru
Russian Federation, Tomsk
Y. A. Moiseeva
National Research Tomsk Polytechnic University
Email: irina@poi.dvo.ru
Russian Federation, Tomsk
K. V. Barskov
Obukhov Institute of Atmospheric Physics of the Russian Academy of Sciences
Email: irina@poi.dvo.ru
Russian Federation, 3, Pizevsky, Moscow, 119017
V. I. Sergienko
Far East Branch of Russian Academy of Sciences
Email: irina@poi.dvo.ru
Academician of the RAS
Russian Federation, VladivostokI. P. Semiletov
Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences; National Research Tomsk Polytechnic University
Email: irina@poi.dvo.ru
Corresponding Member of the RAS
Russian Federation, 43, Baltiyskaya Street, Vladivostok, 690041; TomskReferences
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