Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Igor, Semiletov"'
Autor:
Olga Konovalova, Nadezhda Rimskaya-Korsakova, Petr Kuznetsov, Alexander Osadchiev, Maria Fedyaeva, Iuliia Moiseeva, Darya Purgina, Denis Kosmach, Igor Semiletov
Publikováno v:
Frontiers in Ecology and Evolution, Vol 12 (2024)
IntroductionMethane seeps influence surrounding benthic communities in different ways from slight changes in benthic abundance and biomass to major altering the species composition.Materials and MethodsWe studied benthic communities of 14 methane see
Externí odkaz:
https://doaj.org/article/dbb4e17370334e4fa88d27595adb242d
Autor:
Alexander Osadchiev, Roman Sedakov, Dmitry Frey, Alexandra Gordey, Vladimir Rogozhin, Zinaida Zabudkina, Eduard Spivak, Ekaterina Kuskova, Andrey Sazhin, Igor Semiletov
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract The Kara Sea receives ~ 1/3 of total freshwater discharge to the Arctic Ocean, mainly from the large Ob and Yenisei rivers. The Ob-Yenisei plume covers wide area in the central part of the Kara Sea during ice-free season (June–October) and
Externí odkaz:
https://doaj.org/article/aeda07ebacb74d9fb4faa29303acf2db
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
This synthesis of carbon isotope data in circum-Arctic shelf sediments provides a holistic, receptor-based perspective of how carbon release and transport vary between Arctic soils, peat and permafrost deposits amongst the different Arctic regions.
Externí odkaz:
https://doaj.org/article/84caa202689b48b79f79026cb4dc4fa9
Publikováno v:
Quaternary, Vol 7, Iss 1, p 12 (2024)
The study of rare earth elements (REEs) in marine sediments is a powerful geochemical tool for determining depositional processes and sediment provenance, as well as for understanding paleoenvironmental changes. In this context, we present REE, some
Externí odkaz:
https://doaj.org/article/3c3426ca5076473a8d2fd5f8028ad22c
Publikováno v:
Remote Sensing, Vol 16, Iss 2, p 408 (2024)
The key area of the Arctic Ocean for atmospheric venting of CH4 is the East Siberian Arctic Shelf (ESAS). Leakage of methane through shallow ESAS waters needs to be considered in interactions between the biogeosphere and a warming Arctic climate. The
Externí odkaz:
https://doaj.org/article/dd57ae75b4c04d5d894755bdaecf1356
Autor:
Birgit Wild, Natalia Shakhova, Oleg Dudarev, Alexey Ruban, Denis Kosmach, Vladimir Tumskoy, Tommaso Tesi, Hanna Grimm, Inna Nybom, Felipe Matsubara, Helena Alexanderson, Martin Jakobsson, Alexey Mazurov, Igor Semiletov, Örjan Gustafsson
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)
Subsea permafrost underneath the Arctic Ocean is one of the least understood compartments of the global carbon cycle. Here, Wild et al. shed light on its carbon sources, degradation history and potential greenhouse gas release after thaw.
Externí odkaz:
https://doaj.org/article/2797f233a31c4b8792e80cf53a54965d
Autor:
Lina Xie, Evgeniy Yakushev, Igor Semiletov, Andrey Grinko, Ivan Gangnus, Anfisa Berezina, Alexander Osadchiev, Igor Zhdanov, Alexander Polukhin, Julia Moiseeva, Darya Purgina, Irina Pipko, Svetlana Pugach, Oleg Dudarev, Zhenming Ge
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
The discharge of rivers and the subsequent dispersion of their plumes play a pivotal role in the biogeochemical cycling of the Arctic Ocean. Based on the data collected during annual transects conducted in the autumn period (September-October) from 2
Externí odkaz:
https://doaj.org/article/cf95c5486ccd42039ddb08da0377ebf8
Autor:
Alexander Osadchiev, Zinaida Zabudkina, Vladimir Rogozhin, Dmitry Frey, Alexandra Gordey, Eduard Spivak, Anatoly Salyuk, Igor Semiletov, Roman Sedakov
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
The major Siberian rivers form large river plumes in the Arctic Ocean, which govern structure of the sea surface layer at the Arctic shelf. These river plumes were explicitly studied during the warm period in summer and early autumn characterized by
Externí odkaz:
https://doaj.org/article/66d40ce9369e47a7b71a90fdaaf4259c
Publikováno v:
Remote Sensing, Vol 15, Iss 20, p 5065 (2023)
Large areas of the seafloor in the Laptev Sea consist of submarine permafrost, which has experienced intense degradation over the last decades and centuries. Thermal abrasion of the submarine permafrost results in upward advection of suspended matter
Externí odkaz:
https://doaj.org/article/53fb5f128bbd4c6bbbda5293d8c29178
Autor:
Denis Chernykh, Natalia Shakhova, Vladimir Yusupov, Elena Gershelis, Boris Morgunov, Igor Semiletov
Publikováno v:
Geosciences, Vol 13, Iss 8, p 228 (2023)
This paper presents the results of an acoustic survey carried out from the fast ice in the shallow waters of the East Siberian Arctic Shelf (ESAS) using a single beam echosounder. The aim of this paper is to demonstrate an improved approach to study
Externí odkaz:
https://doaj.org/article/3fc87a3be1e04f4086f6791085331d45