The Transpolar Drift as a Source of Riverine and Shelf-Derived Trace Elements to the Central Arctic Ocean
Matthew A Charette
(1)
,
Lauren Kipp
(2, 3)
,
Laramie Jensen
(4)
,
Jessica Dabrowski
(5)
,
Laura Whitmore
(6)
,
Jessica Fitzsimmons
(4)
,
Tatiana Williford
(4)
,
Adam Ulfsbo
(7)
,
Elizabeth Jones
(8)
,
Randelle Bundy
(5, 9)
,
Sebastian Vivancos
(3, 10)
,
Katharina Pahnke
(11)
,
Seth John
(12)
,
Yang Xiang
(13)
,
Mariko Hatta
(14)
,
Mariia Petrova
(15, 16)
,
Lars-Eric Heimbürger-Boavida
(16)
,
Dorothea Bauch
(17)
,
Robert Newton
(3)
,
Angelica Pasqualini
(18)
,
Alison Agather
(19)
,
Rainer M.W. Amon
(4)
,
Robert Anderson
(3)
,
Per Andersson
(20)
,
Ronald Benner
(21, 22)
,
Katlin Bowman
(23)
,
R. Lawrence Edwards
(24)
,
Sandra Gdaniec
(20, 25, 26, 27)
,
Loes J.A. Gerringa
(28)
,
Aridane G. Gonzalez
(29, 30)
,
Mats A Granskog
(31)
,
Brian Haley
(32)
,
Chad R Hammerschmidt
(19)
,
Dennis Hansell
(33)
,
Paul Henderson
(5)
,
David Kadko
(34)
,
Karl Kaiser
(4, 35)
,
Phoebe Lam
(23)
,
Carl Lamborg
(23)
,
Martin Levier
(26, 27)
,
Xianglei Li
(24)
,
Andrew Margolin
(33, 36)
,
Chris Measures
(37)
,
Rob Middag
(28)
,
Frank Millero
(33)
,
Willard Moore
(22)
,
Ronja Paffrath
(11)
,
Hélène Planquette
(29)
,
Benjamin Rabe
(38)
,
Heather Reader
(39, 40)
,
Robert Rember
(41)
,
Micha J.A. Rijkenberg
(28)
,
Matthieu Roy-Barman
(27, 26)
,
Michiel Rutgers van Der Loeff
(38)
,
Mak Saito
(5)
,
Ursula Schauer
(38)
,
Peter Schlosser
(3)
,
Robert Sherrell
,
Alan M Shiller
(6, 42)
,
Hans Slagter
(26, 43)
,
Jeroen E. Sonke
(44)
,
Colin Stedmon
(39)
,
Ryan Woosley
(33, 45, 46)
,
Ole Valk
(47)
,
Jan van Ooijen
(28)
,
Ruifeng Zhang
(48, 49)
1
WHOI -
Department of Marine Chemistry and Geochemistry
2 Dalhousie University [Halifax]
3 LDEO - Lamont-Doherty Earth Observatory
4 Texas A&M University [College Station]
5 WHOI - Woods Hole Oceanographic Institution
6 USM - University of Southern Mississippi
7 Department of Marine Sciences [Gothenburg]
8 IMR - Tromsø department
9 School of Oceanography [Seattle]
10 Department of earth and environmental sciences and the Lamont-Doherty earth observatory
11 ICBM - Institute for Chemistry and Biology of the Marine Environment
12 Department of Earth Sciences [USC Los Angeles]
13 Ocean Sciences Department, University of California [USA]
14 Department of Oceanography [Honolulu]
15 UTLN - Université de Toulon
16 MIO - Institut méditerranéen d'océanologie
17 GEOMAR - Helmholtz Centre for Ocean Research [Kiel]
18 Department of Earth and Environmental Engineering [New York]
19 Wright State University
20 NRM - Swedish Museum of Natural History
21 Department of Biological Sciences [Columbia]
22 University of South Carolina [Columbia]
23 UC Santa Cruz - University of California [Santa Cruz]
24 Department of Geology and Geophysics
25 Department of Geological Sciences [Stockholm University]
26 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
27 GEDI - Géochimie Des Impacts
28 NIOZ - Royal Netherlands Institute for Sea Research
29 LEMAR - Laboratoire des Sciences de l'Environnement Marin (LEMAR)
30 IOCAG - Instituto de Oceanografía y Cambio Global
31 Norwegian Polar Institute
32 CEOAS - College of Earth, Ocean and Atmospheric Sciences [Corvallis]
33 RSMAS - Rosenstiel School of Marine and Atmospheric Science
34 FIU - Florida International University [Miami]
35 Texas A&M University [Galveston]
36 UBC - University of British Columbia
37 UHM - University of Hawai‘i [Mānoa]
38 AWI - Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine
39 DTU Aqua, National Institute of Aquatic Resources
40 MUN - Memorial University of Newfoundland = Université Memorial de Terre-Neuve [St. John's, Canada]
41 IARC - International Arctic Research Center
42 ASU - Arizona State University [Tempe]
43 MPIC - Max Planck Institute for Chemistry
44 GET - Géosciences Environnement Toulouse
45 Center for Global Change Science
46 MIT - Massachusetts Institute of Technology
47 AWI - Alfred Wegener Institute for Polar and Marine Research
48 USC - University of Southern California
49 Shanghai Jiao Tong University [Shanghai]
2 Dalhousie University [Halifax]
3 LDEO - Lamont-Doherty Earth Observatory
4 Texas A&M University [College Station]
5 WHOI - Woods Hole Oceanographic Institution
6 USM - University of Southern Mississippi
7 Department of Marine Sciences [Gothenburg]
8 IMR - Tromsø department
9 School of Oceanography [Seattle]
10 Department of earth and environmental sciences and the Lamont-Doherty earth observatory
11 ICBM - Institute for Chemistry and Biology of the Marine Environment
12 Department of Earth Sciences [USC Los Angeles]
13 Ocean Sciences Department, University of California [USA]
14 Department of Oceanography [Honolulu]
15 UTLN - Université de Toulon
16 MIO - Institut méditerranéen d'océanologie
17 GEOMAR - Helmholtz Centre for Ocean Research [Kiel]
18 Department of Earth and Environmental Engineering [New York]
19 Wright State University
20 NRM - Swedish Museum of Natural History
21 Department of Biological Sciences [Columbia]
22 University of South Carolina [Columbia]
23 UC Santa Cruz - University of California [Santa Cruz]
24 Department of Geology and Geophysics
25 Department of Geological Sciences [Stockholm University]
26 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
27 GEDI - Géochimie Des Impacts
28 NIOZ - Royal Netherlands Institute for Sea Research
29 LEMAR - Laboratoire des Sciences de l'Environnement Marin (LEMAR)
30 IOCAG - Instituto de Oceanografía y Cambio Global
31 Norwegian Polar Institute
32 CEOAS - College of Earth, Ocean and Atmospheric Sciences [Corvallis]
33 RSMAS - Rosenstiel School of Marine and Atmospheric Science
34 FIU - Florida International University [Miami]
35 Texas A&M University [Galveston]
36 UBC - University of British Columbia
37 UHM - University of Hawai‘i [Mānoa]
38 AWI - Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine
39 DTU Aqua, National Institute of Aquatic Resources
40 MUN - Memorial University of Newfoundland = Université Memorial de Terre-Neuve [St. John's, Canada]
41 IARC - International Arctic Research Center
42 ASU - Arizona State University [Tempe]
43 MPIC - Max Planck Institute for Chemistry
44 GET - Géosciences Environnement Toulouse
45 Center for Global Change Science
46 MIT - Massachusetts Institute of Technology
47 AWI - Alfred Wegener Institute for Polar and Marine Research
48 USC - University of Southern California
49 Shanghai Jiao Tong University [Shanghai]
Lars-Eric Heimbürger-Boavida
- Fonction : Auteur
- PersonId : 8342
- IdHAL : lars-eric
- ORCID : 0000-0003-0632-5183
- IdRef : 146501985
Ronald Benner
- Fonction : Auteur
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- ORCID : 0000-0002-1238-2777
Loes J.A. Gerringa
- Fonction : Auteur
- PersonId : 781579
- ORCID : 0000-0002-3139-8352
Rob Middag
- Fonction : Auteur
- PersonId : 770278
- ORCID : 0000-0002-3326-530X
Hélène Planquette
- Fonction : Auteur
- PersonId : 180476
- IdHAL : helene-planquette
- ORCID : 0000-0002-2235-5158
- IdRef : 203611314
Matthieu Roy-Barman
- Fonction : Auteur
- PersonId : 734691
- IdHAL : matthieu-roy-barman
- ORCID : 0000-0002-3986-4549
- IdRef : 066854229
Robert Sherrell
- Fonction : Auteur
Alan M Shiller
- Fonction : Auteur
Jeroen E. Sonke
- Fonction : Auteur
- PersonId : 947595
- ORCID : 0000-0001-7146-3035
- IdRef : 149238029
Ryan Woosley
- Fonction : Auteur
- PersonId : 800309
- ORCID : 0000-0002-2008-7751
Ruifeng Zhang
- Fonction : Auteur
- PersonId : 852545
Résumé
A major surface circulation feature of the Arctic Ocean is the Transpolar Drift (TPD), a current that transports river‐influenced shelf water from the Laptev and East Siberian Seas toward the center of the basin and Fram Strait. In 2015, the international GEOTRACES program included a high‐resolution pan‐Arctic survey of carbon, nutrients, and a suite of trace elements and isotopes (TEIs). The cruises bisected the TPD at two locations in the central basin, which were defined by maxima in meteoric water and dissolved organic carbon concentrations that spanned 600 km horizontally and ~25‐50 m vertically. Dissolved TEIs such as Fe, Co, Ni, Cu, Hg, Nd, and Th, which are generally particle‐reactive but can be complexed by organic matter, were observed at concentrations much higher than expected for the open ocean setting. Other trace element concentrations such as Al, V, Ga, and Pb were lower than expected due to scavenging over the productive East Siberian and Laptev shelf seas. Using a combination of radionuclide tracers and ice drift modeling, the transport rate for the core of the TPD was estimated at 0.9 ± 0.4 Sv (106 m3 s‐1). This rate was used to derive the mass flux for TEIs that were enriched in the TPD, revealing the importance of lateral transport in supplying materials beneath the ice to the central Arctic Ocean and potentially to the North Atlantic Ocean via Fram Strait. Continued intensification of the Arctic hydrologic cycle and permafrost degradation will likely lead to an increase in the flux of TEIs into the Arctic Ocean.
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