Bottom Sediments Reveal Inter-Annual Variability of Interaction between the Ob and Yenisei Plumes in the Kara Sea
River discharge is the main source of terrigenous sediments in many coastal areas adjacent to estuaries and deltas of large rivers. Spreading and mixing dynamics of river plumes governs transport of suspended sediments and their deposition at sea bottom at these areas. Generally river plumes have ve...
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ftpubmed:oai:pubmedcentral.nih.gov:6901518 2023-05-15T16:59:52+02:00 Bottom Sediments Reveal Inter-Annual Variability of Interaction between the Ob and Yenisei Plumes in the Kara Sea Osadchiev, A. A. Asadulin, En. E. Miroshnikov, A. Yu. Zavialov, I. B. Dubinina, E. O. Belyakova, P. A. 2019-12-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6901518/ http://www.ncbi.nlm.nih.gov/pubmed/31819144 https://doi.org/10.1038/s41598-019-55242-3 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6901518/ http://www.ncbi.nlm.nih.gov/pubmed/31819144 http://dx.doi.org/10.1038/s41598-019-55242-3 © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2019 ftpubmed https://doi.org/10.1038/s41598-019-55242-3 2019-12-15T01:46:11Z River discharge is the main source of terrigenous sediments in many coastal areas adjacent to estuaries and deltas of large rivers. Spreading and mixing dynamics of river plumes governs transport of suspended sediments and their deposition at sea bottom at these areas. Generally river plumes have very large synoptic and seasonal variability, which cannot be reconstructed from structure of bottom sediments due to their small accumulation velocity. However, bottom sediments can be indicative of variability of river plumes on inter-annual and decadal time scales. In this study we focus on the large Ob and Yenisei buoyant plumes formed in the central part of the Kara Sea. These plumes interact and mix in the area adjacent to the closely located Ob and Yenisei gulfs. Suspended sediments carried by these river plumes have significantly different geochemical characteristics that can be used to detect Ob or Yenisei origin of bottom sediments. Using new geochemical methods we revealed dependence between spreading patterns of these plumes and spatial distribution and vertical structure of bottom sediments in the study area. This relation is confirmed by a good agreement between local wind and discharge conditions reconstructed for 1948–2001 and vertical structure of bottom sediments. Text Kara Sea PubMed Central (PMC) Kara Sea Scientific Reports 9 1 |
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Article Osadchiev, A. A. Asadulin, En. E. Miroshnikov, A. Yu. Zavialov, I. B. Dubinina, E. O. Belyakova, P. A. Bottom Sediments Reveal Inter-Annual Variability of Interaction between the Ob and Yenisei Plumes in the Kara Sea |
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River discharge is the main source of terrigenous sediments in many coastal areas adjacent to estuaries and deltas of large rivers. Spreading and mixing dynamics of river plumes governs transport of suspended sediments and their deposition at sea bottom at these areas. Generally river plumes have very large synoptic and seasonal variability, which cannot be reconstructed from structure of bottom sediments due to their small accumulation velocity. However, bottom sediments can be indicative of variability of river plumes on inter-annual and decadal time scales. In this study we focus on the large Ob and Yenisei buoyant plumes formed in the central part of the Kara Sea. These plumes interact and mix in the area adjacent to the closely located Ob and Yenisei gulfs. Suspended sediments carried by these river plumes have significantly different geochemical characteristics that can be used to detect Ob or Yenisei origin of bottom sediments. Using new geochemical methods we revealed dependence between spreading patterns of these plumes and spatial distribution and vertical structure of bottom sediments in the study area. This relation is confirmed by a good agreement between local wind and discharge conditions reconstructed for 1948–2001 and vertical structure of bottom sediments. |
format |
Text |
author |
Osadchiev, A. A. Asadulin, En. E. Miroshnikov, A. Yu. Zavialov, I. B. Dubinina, E. O. Belyakova, P. A. |
author_facet |
Osadchiev, A. A. Asadulin, En. E. Miroshnikov, A. Yu. Zavialov, I. B. Dubinina, E. O. Belyakova, P. A. |
author_sort |
Osadchiev, A. A. |
title |
Bottom Sediments Reveal Inter-Annual Variability of Interaction between the Ob and Yenisei Plumes in the Kara Sea |
title_short |
Bottom Sediments Reveal Inter-Annual Variability of Interaction between the Ob and Yenisei Plumes in the Kara Sea |
title_full |
Bottom Sediments Reveal Inter-Annual Variability of Interaction between the Ob and Yenisei Plumes in the Kara Sea |
title_fullStr |
Bottom Sediments Reveal Inter-Annual Variability of Interaction between the Ob and Yenisei Plumes in the Kara Sea |
title_full_unstemmed |
Bottom Sediments Reveal Inter-Annual Variability of Interaction between the Ob and Yenisei Plumes in the Kara Sea |
title_sort |
bottom sediments reveal inter-annual variability of interaction between the ob and yenisei plumes in the kara sea |
publisher |
Nature Publishing Group UK |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6901518/ http://www.ncbi.nlm.nih.gov/pubmed/31819144 https://doi.org/10.1038/s41598-019-55242-3 |
geographic |
Kara Sea |
geographic_facet |
Kara Sea |
genre |
Kara Sea |
genre_facet |
Kara Sea |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6901518/ http://www.ncbi.nlm.nih.gov/pubmed/31819144 http://dx.doi.org/10.1038/s41598-019-55242-3 |
op_rights |
© The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-019-55242-3 |
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Scientific Reports |
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9 |
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