Table_1_Structure of the Ob-Yenisei plume in the Kara Sea shortly before autumn ice formation.xlsx
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 high river runoff and ice-free conditions. However...
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ftfrontimediafig:oai:figshare.com:article/22248862 2024-09-15T17:53:33+00:00 Table_1_Structure of the Ob-Yenisei plume in the Kara Sea shortly before autumn ice formation.xlsx Alexander Osadchiev Zinaida Zabudkina Vladimir Rogozhin Dmitry Frey Alexandra Gordey Eduard Spivak Anatoly Salyuk Igor Semiletov Roman Sedakov 2023-03-10T04:32:58Z https://doi.org/10.3389/fmars.2023.1129331.s001 https://figshare.com/articles/dataset/Table_1_Structure_of_the_Ob-Yenisei_plume_in_the_Kara_Sea_shortly_before_autumn_ice_formation_xlsx/22248862 unknown doi:10.3389/fmars.2023.1129331.s001 https://figshare.com/articles/dataset/Table_1_Structure_of_the_Ob-Yenisei_plume_in_the_Kara_Sea_shortly_before_autumn_ice_formation_xlsx/22248862 CC BY 4.0 Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering river plume autumn convection stratification surface layer Ob Yenisei Kara Sea Arctic Ocean Dataset 2023 ftfrontimediafig https://doi.org/10.3389/fmars.2023.1129331.s001 2024-08-19T06:19:58Z 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 high river runoff and ice-free conditions. However, little is known about processes, which occur within these river plumes at the beginning of the cold season, i.e., during late autumn shortly before sea ice formation. In this study, we report in situ measurements performed in the Kara Sea in late October in 2020, 2021, and 2022. We reveal that intense convection occurs in the Ob-Yenisei plume due to heat loss from the surface layer, which is caused by transport of cold air from land to the central part of the Kara Sea. This process induces homogenization of the Ob-Yenisei plume and results in extremely sharp salinity jump (up to 10-12 at vertical distance of 1-2 m) between the plume and the subjacent seawater. This sharp gradient is not formed at the whole area of the plume except, first, at the Ob and Yenisei gulfs due to low surface salinities and the related high temperatures of maximal density and, second, at the lateral boundary of the plume due to intense horizontal mixing across the plume-sea border. As a result, autumn convection significantly modifies vertical structure of the Ob-Yenisei plume that could affect its further spreading below sea ice during winter season. Dataset Arctic Ocean Kara Sea Sea ice Frontiers: Figshare |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering river plume autumn convection stratification surface layer Ob Yenisei Kara Sea Arctic Ocean |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering river plume autumn convection stratification surface layer Ob Yenisei Kara Sea Arctic Ocean Alexander Osadchiev Zinaida Zabudkina Vladimir Rogozhin Dmitry Frey Alexandra Gordey Eduard Spivak Anatoly Salyuk Igor Semiletov Roman Sedakov Table_1_Structure of the Ob-Yenisei plume in the Kara Sea shortly before autumn ice formation.xlsx |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering river plume autumn convection stratification surface layer Ob Yenisei Kara Sea Arctic Ocean |
description |
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 high river runoff and ice-free conditions. However, little is known about processes, which occur within these river plumes at the beginning of the cold season, i.e., during late autumn shortly before sea ice formation. In this study, we report in situ measurements performed in the Kara Sea in late October in 2020, 2021, and 2022. We reveal that intense convection occurs in the Ob-Yenisei plume due to heat loss from the surface layer, which is caused by transport of cold air from land to the central part of the Kara Sea. This process induces homogenization of the Ob-Yenisei plume and results in extremely sharp salinity jump (up to 10-12 at vertical distance of 1-2 m) between the plume and the subjacent seawater. This sharp gradient is not formed at the whole area of the plume except, first, at the Ob and Yenisei gulfs due to low surface salinities and the related high temperatures of maximal density and, second, at the lateral boundary of the plume due to intense horizontal mixing across the plume-sea border. As a result, autumn convection significantly modifies vertical structure of the Ob-Yenisei plume that could affect its further spreading below sea ice during winter season. |
format |
Dataset |
author |
Alexander Osadchiev Zinaida Zabudkina Vladimir Rogozhin Dmitry Frey Alexandra Gordey Eduard Spivak Anatoly Salyuk Igor Semiletov Roman Sedakov |
author_facet |
Alexander Osadchiev Zinaida Zabudkina Vladimir Rogozhin Dmitry Frey Alexandra Gordey Eduard Spivak Anatoly Salyuk Igor Semiletov Roman Sedakov |
author_sort |
Alexander Osadchiev |
title |
Table_1_Structure of the Ob-Yenisei plume in the Kara Sea shortly before autumn ice formation.xlsx |
title_short |
Table_1_Structure of the Ob-Yenisei plume in the Kara Sea shortly before autumn ice formation.xlsx |
title_full |
Table_1_Structure of the Ob-Yenisei plume in the Kara Sea shortly before autumn ice formation.xlsx |
title_fullStr |
Table_1_Structure of the Ob-Yenisei plume in the Kara Sea shortly before autumn ice formation.xlsx |
title_full_unstemmed |
Table_1_Structure of the Ob-Yenisei plume in the Kara Sea shortly before autumn ice formation.xlsx |
title_sort |
table_1_structure of the ob-yenisei plume in the kara sea shortly before autumn ice formation.xlsx |
publishDate |
2023 |
url |
https://doi.org/10.3389/fmars.2023.1129331.s001 https://figshare.com/articles/dataset/Table_1_Structure_of_the_Ob-Yenisei_plume_in_the_Kara_Sea_shortly_before_autumn_ice_formation_xlsx/22248862 |
genre |
Arctic Ocean Kara Sea Sea ice |
genre_facet |
Arctic Ocean Kara Sea Sea ice |
op_relation |
doi:10.3389/fmars.2023.1129331.s001 https://figshare.com/articles/dataset/Table_1_Structure_of_the_Ob-Yenisei_plume_in_the_Kara_Sea_shortly_before_autumn_ice_formation_xlsx/22248862 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fmars.2023.1129331.s001 |
_version_ |
1810429423787180032 |