Observations of atmospheric methane and its stable isotope ratio (δ13C) over the Russian Arctic seas from ship cruises in the summer and autumn of 2015
- Autores: Thompson R.1, Novigatsky A.2, Golitsyn G.3, Skorokhod A.3, Pankratova N.3, Belikov I.3
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Afiliações:
- Norwegian Institute for Air Research
- Shirshov Institute of Oceanology
- Obukhov Institute of Atmospheric Physics
- Edição: Volume 470, Nº 2 (2016)
- Páginas: 1081-1085
- Seção: Geophysics
- URL: https://journals.rcsi.science/1028-334X/article/view/189035
- DOI: https://doi.org/10.1134/S1028334X16100160
- ID: 189035
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Resumo
The results of experimental measurements of atmospheric methane concentrations and its isotopic composition in the Russian Arctic seas in the summer and autumn of 2015 are discussed. The Keeling plot method and inverse number simulation were used for revealing the factors responsible for elevated methane concentrations over the sea surface. Its maximum concentrations (up to 2050 ppb) were measured over the Kara and Laptev seas, as well as in the port area of Arkhangel’sk. It is shown that tundra and bog ecosystems of Siberia serve as the main sources of methane in the measurement zone (except for the area adjacent to large ports). As a whole, the share of methane from microbiological sources is as high as approximately 43% of the total methane concentrations along the ship route.
Sobre autores
R. Thompson
Norwegian Institute for Air Research
Email: n_pankratova@list.ru
Noruega, Kjeller, 2027
A. Novigatsky
Shirshov Institute of Oceanology
Email: n_pankratova@list.ru
Rússia, Moscow, 117218
G. Golitsyn
Obukhov Institute of Atmospheric Physics
Email: n_pankratova@list.ru
Rússia, Pyzhevsky per. 3, Moscow, 119017
A. Skorokhod
Obukhov Institute of Atmospheric Physics
Email: n_pankratova@list.ru
Rússia, Pyzhevsky per. 3, Moscow, 119017
N. Pankratova
Obukhov Institute of Atmospheric Physics
Autor responsável pela correspondência
Email: n_pankratova@list.ru
Rússia, Pyzhevsky per. 3, Moscow, 119017
I. Belikov
Obukhov Institute of Atmospheric Physics
Email: n_pankratova@list.ru
Rússia, Pyzhevsky per. 3, Moscow, 119017