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dc.contributor.authorGjelstrup, Caroline V. B.
dc.contributor.authorMyers, Paul G.
dc.contributor.authorLee, Craig M.
dc.contributor.authorAzetsu-Scott, Kumiko
dc.contributor.authorStedmon, Colin A.
dc.date.accessioned2025-02-17T15:30:09Z
dc.date.available2025-02-17T15:30:09Z
dc.date.issued2024-11-01
dc.identifier314603414
dc.identifierc6bc310d-83c1-459c-9486-1ddfa161d0bc
dc.identifier85205310104
dc.identifier.citationGjelstrup , C V B , Myers , P G , Lee , C M , Azetsu-Scott , K & Stedmon , C A 2024 , ' Connectivity between Siberian river runoff and the lower limb of the Atlantic Meridional Overturning Circulation ' , Limnology and Oceanography , vol. 69 , no. 11 , pp. 2680-2687 . https://doi.org/10.1002/lno.12696en
dc.identifier.issn0024-3590
dc.identifier.otherORCID: /0000-0002-1590-2192/work/178180996
dc.identifier.urihttps://hdl.handle.net/10023/31410
dc.descriptionThis study was funded by Independent Research Fund Denmark Grant No. 9040-00266B (CAS), Carlsberg Foundation Grant No. CF22-0142 (CAS), Nordic Council of Ministers AG-Fisk Grant No. (209)-2020-LEGCO (CAS), Natural Sciences and Engineering Research Council (NSERC) of Canada Discovery Grant (rgpin 227438-09) (PGM), and U.S. National Science Foundation Grant OPP-1902595 (CML, KAS).en
dc.description.abstractFreshwater from the Arctic participates in the globally important Atlantic Meridional Overturning Circulation (AMOC). We use high-resolution, in situ observations of dissolved organic matter (DOM) fluorescence to trace the origins of freshwater and organic carbon in the densest component of the AMOC, namely Denmark Strait Overflow Water (DSOW). We find a distinct terrestrial DOM signal in DSOW and trace it upstream to the Siberian shelves in the Arctic Ocean. This implies a riverine origin of freshwater in DSOW. We estimate that the Siberian Shelf water contribution constitutes approximately 1% of DSOW. Ocean circulation modeling confirms the inferred pathway and highlights Denmark Strait as an important location for the entrainment of the riverine signal into DSOW. Our proposed method can be deployed on a range of observing systems to elucidate freshwater dispersion across the Arctic and subarctic, thereby contributing to the broader discussion on freshwater impacts and organic carbon sequestration in the AMOC.
dc.format.extent8
dc.format.extent1979360
dc.language.isoeng
dc.relation.ispartofLimnology and Oceanographyen
dc.rights© 2024 The Author(s). This is an open access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.en
dc.subjectGC Oceanographyen
dc.subjectOceanographyen
dc.subjectAquatic Scienceen
dc.subjectDASen
dc.subjectMCCen
dc.subject.lccGCen
dc.titleConnectivity between Siberian river runoff and the lower limb of the Atlantic Meridional Overturning Circulationen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews.School of Earth & Environmental Sciencesen
dc.identifier.doi10.1002/lno.12696
dc.description.statusPeer revieweden


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