Sources of and variations in tropospheric CO in Central Siberia: Numerical 
experiments and observations at the Zotino Tall Tower Observatory

Shtabkin, Yu. A.; Moiseenko, K. B.; Skorokhod, A. I.; Vasileva, A. V.; Heimann, Martin

doi:10.1134/S0001433816010096

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Sources of and variations in tropospheric CO in Central Siberia: Numerical experiments and observations at the Zotino Tall Tower Observatory

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Heimann, Martin
Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society;

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Citation

Shtabkin, Y. A., Moiseenko, K. B., Skorokhod, A. I., Vasileva, A. V., & Heimann, M. (2016). Sources of and variations in tropospheric CO in Central Siberia: Numerical experiments and observations at the Zotino Tall Tower Observatory. Izvestiya Atmospheric and Oceanic Physics, 52(1), 45-56. doi:10.1134/S0001433816010096.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-4D32-7

Abstract

Contributions of climatically significant natural and anthropogenic emission sources in northern Eurasia to seasonal carbon monoxide (CO) variations observed at the Zotino Tall Tower Observatory (ZOTTO) in Central Siberia in 2007–2011 have quantitatively been estimated using the GEOSChem chem ical transport model. It is shown that the formation of a stable continental pollution plume from sources in Western Europe, European Russia and southern Siberia during winter plays an important role in the regional balance of surface CO and allows one to explain 55–80% of the amplitude of the CO annual cycle observed at the ZOTTO station (~70–90 ppbv). During the warm period, the effect of the anthropogenic factor is weakly pronounced, and the background concentration of CO is regulated, first and foremost, by the oxidation of biogenic volatile organic compounds and fire activity in the region.