Carbon dioxide emissions from rivers in Western Siberia
M.Yu. Arshinov, B.D. Belan, D.K. Davydov, D.V. Simonenkov, A.V. Fofonov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
Keywords: atmosphere, air, flux, river, carbon dioxide, emission
Abstract
One of the possible sources of carbon dioxide entering the atmosphere may be river ecosystems. The paper presents the results of measuring CO2 fluxes from the surface of a number of rivers and lakes in the Tomsk region. It is shown that during the period of experiments the average carbon dioxide flows for the Ob River were 143.7 ± 21.7 (August 13-14, 2023), 53.3 ± 21.2 (August 19), and 80.4 ± 59.9 mgC × m-2 × hour-1 (August 20), respectively. On the river Ket: 66.1 ± 17.3, on the swamp lake Karasevoye 33.3 ± 17.3, on the Suiga River 50.2 ± 23.0, and the Iksa River 81.9 ± 11.5 mgC × m-2 × hour-1. Their magnitudes depended significantly not only on the object of study, but also on hydrometeorological conditions.
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