Separating individual contributions of major Siberian rivers in the Transpolar Drift of the Arctic Ocean

Abstract The Siberian rivers supply large amounts of freshwater and terrestrial derived material to the Arctic Ocean. Although riverine freshwater and constituents have been identified in the central Arctic Ocean, the individual contributions of the Siberian rivers to and their spatiotemporal distri...

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Autores principales:	Ronja Paffrath, Georgi Laukert, Dorothea Bauch, Michiel Rutgers van der Loeff, Katharina Pahnke
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d4ed1575d41b457c9123d3a60162a097
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spelling	oai:doaj.org-article:d4ed1575d41b457c9123d3a60162a0972021-12-02T14:26:13ZSeparating individual contributions of major Siberian rivers in the Transpolar Drift of the Arctic Ocean10.1038/s41598-021-86948-y2045-2322https://doaj.org/article/d4ed1575d41b457c9123d3a60162a0972021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86948-yhttps://doaj.org/toc/2045-2322Abstract The Siberian rivers supply large amounts of freshwater and terrestrial derived material to the Arctic Ocean. Although riverine freshwater and constituents have been identified in the central Arctic Ocean, the individual contributions of the Siberian rivers to and their spatiotemporal distributions in the Transpolar Drift (TPD), the major wind-driven current in the Eurasian sector of the Arctic Ocean, are unknown. Determining the influence of individual Siberian rivers downstream the TPD, however, is critical to forecast responses in polar and sub-polar hydrography and biogeochemistry to the anticipated individual changes in river discharge and freshwater composition. Here, we identify the contributions from the largest Siberian river systems, the Lena and Yenisei/Ob, in the TPD using dissolved neodymium isotopes and rare earth element concentrations. We further demonstrate their vertical and lateral separation that is likely due to distinct temporal emplacements of Lena and Yenisei/Ob waters in the TPD as well as prior mixing of Yenisei/Ob water with ambient waters.Ronja PaffrathGeorgi LaukertDorothea BauchMichiel Rutgers van der LoeffKatharina PahnkeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ronja Paffrath Georgi Laukert Dorothea Bauch Michiel Rutgers van der Loeff Katharina Pahnke Separating individual contributions of major Siberian rivers in the Transpolar Drift of the Arctic Ocean
description	Abstract The Siberian rivers supply large amounts of freshwater and terrestrial derived material to the Arctic Ocean. Although riverine freshwater and constituents have been identified in the central Arctic Ocean, the individual contributions of the Siberian rivers to and their spatiotemporal distributions in the Transpolar Drift (TPD), the major wind-driven current in the Eurasian sector of the Arctic Ocean, are unknown. Determining the influence of individual Siberian rivers downstream the TPD, however, is critical to forecast responses in polar and sub-polar hydrography and biogeochemistry to the anticipated individual changes in river discharge and freshwater composition. Here, we identify the contributions from the largest Siberian river systems, the Lena and Yenisei/Ob, in the TPD using dissolved neodymium isotopes and rare earth element concentrations. We further demonstrate their vertical and lateral separation that is likely due to distinct temporal emplacements of Lena and Yenisei/Ob waters in the TPD as well as prior mixing of Yenisei/Ob water with ambient waters.
format	article
author	Ronja Paffrath Georgi Laukert Dorothea Bauch Michiel Rutgers van der Loeff Katharina Pahnke
author_facet	Ronja Paffrath Georgi Laukert Dorothea Bauch Michiel Rutgers van der Loeff Katharina Pahnke
author_sort	Ronja Paffrath
title	Separating individual contributions of major Siberian rivers in the Transpolar Drift of the Arctic Ocean
title_short	Separating individual contributions of major Siberian rivers in the Transpolar Drift of the Arctic Ocean
title_full	Separating individual contributions of major Siberian rivers in the Transpolar Drift of the Arctic Ocean
title_fullStr	Separating individual contributions of major Siberian rivers in the Transpolar Drift of the Arctic Ocean
title_full_unstemmed	Separating individual contributions of major Siberian rivers in the Transpolar Drift of the Arctic Ocean
title_sort	separating individual contributions of major siberian rivers in the transpolar drift of the arctic ocean
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d4ed1575d41b457c9123d3a60162a097
work_keys_str_mv	AT ronjapaffrath separatingindividualcontributionsofmajorsiberianriversinthetranspolardriftofthearcticocean AT georgilaukert separatingindividualcontributionsofmajorsiberianriversinthetranspolardriftofthearcticocean AT dorotheabauch separatingindividualcontributionsofmajorsiberianriversinthetranspolardriftofthearcticocean AT michielrutgersvanderloeff separatingindividualcontributionsofmajorsiberianriversinthetranspolardriftofthearcticocean AT katharinapahnke separatingindividualcontributionsofmajorsiberianriversinthetranspolardriftofthearcticocean
_version_	1718391398700417024

Separating individual contributions of major Siberian rivers in the Transpolar Drift of the Arctic Ocean

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