دورية أكاديمية
Arctic – Atlantic Exchange of the Dissolved Micronutrients Iron, Manganese, Cobalt, Nickel, Copper and Zinc With a Focus on Fram Strait
| العنوان: | Arctic – Atlantic Exchange of the Dissolved Micronutrients Iron, Manganese, Cobalt, Nickel, Copper and Zinc With a Focus on Fram Strait |
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| المؤلفون: | Krisch, Stephan, Hopwood, Mark J., Roig, Stéphane, Gerringa, Loes J. A., Middag, Rob, Rutgers van der Loeff, Michiel M., Petrova, Mariia V., Lodeiro, Pablo, Colombo, Manuel, Cullen, Jay T., Jackson, Sarah L., Heimbürger‐Boavida, Lars‐Eric, Achterberg, Eric P., 1 GEOMAR Helmholtz Centre for Ocean Research Kiel Kiel Germany, 3 NIOZ Royal Netherlands Institute for Sea Research Den Burg The Netherlands, 4 Alfred‐Wegener‐Institute for Polar and Marine Research Bremerhaven Germany, 5 Aix Marseille Université CNRS/INSU Université de Toulon, IRD Mediterranean Institute of Oceanography (MIO) UM 110 Marseille France, 7 Department of Earth, Ocean, and Atmospheric Sciences University of British Columbia Vancouver BC Canada, 8 School of Earth and Ocean Sciences University of Victoria Victoria BC Canada |
| سنة النشر: | 2022 |
| المجموعة: | GEO-LEOe-docs (SUB Göttingen / TU Bergakademie Freiberg) |
| مصطلحات موضوعية: | ddc:551.9, Arctic Ocean, Fram Strait, trace elements, Arctic‐Atlantic micronutrient exchange, flux budget, GEOTRACES |
| الوصف: | The Arctic Ocean is considered a source of micronutrients to the Nordic Seas and the North Atlantic Ocean through the gateway of Fram Strait (FS). However, there is a paucity of trace element data from across the Arctic Ocean gateways, and so it remains unclear how Arctic and North Atlantic exchange shapes micronutrient availability in the two ocean basins. In 2015 and 2016, GEOTRACES cruises sampled the Barents Sea Opening (GN04, 2015) and FS (GN05, 2016) for dissolved iron (dFe), manganese (dMn), cobalt (dCo), nickel (dNi), copper (dCu) and zinc (dZn). Together with the most recent synopsis of Arctic‐Atlantic volume fluxes, the observed trace element distributions suggest that FS is the most important gateway for Arctic‐Atlantic dissolved micronutrient exchange as a consequence of Intermediate and Deep Water transport. Combining fluxes from FS and the Barents Sea Opening with estimates for Davis Strait (GN02, 2015) suggests an annual net southward flux of 2.7 ± 2.4 Gg·a−1 dFe, 0.3 ± 0.3 Gg·a−1 dCo, 15.0 ± 12.5 Gg·a−1 dNi and 14.2 ± 6.9 Gg·a−1 dCu from the Arctic toward the North Atlantic Ocean. Arctic‐Atlantic exchange of dMn and dZn were more balanced, with a net southbound flux of 2.8 ± 4.7 Gg·a−1 dMn and a net northbound flux of 3.0 ± 7.3 Gg·a−1 dZn. Our results suggest that ongoing changes to shelf inputs and sea ice dynamics in the Arctic, especially in Siberian shelf regions, affect micronutrient availability in FS and the high latitude North Atlantic Ocean. ; Plain Language Summary: Recent studies have proposed that the Arctic Ocean is a source of micronutrients such as dissolved iron (dFe), manganese (dMn), cobalt (dCo), nickel (dNi), copper (dCu) and zinc (dZn) to the North Atlantic Ocean. However, data at the Arctic Ocean gateways including Fram Strait and the Barents Sea Opening have been missing to date and so the extent of Arctic micronutrient transport toward the Atlantic Ocean remains unquantified. Here, we show that Fram Strait is the most important gateway for Arctic‐Atlantic micronutrient ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10231Test |
| DOI: | 10.1029/2021GB007191 |
| الإتاحة: | https://doi.org/10.1029/2021GB007191Test http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10231Test |
| حقوق: | This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
| رقم الانضمام: | edsbas.F08B401E |
| قاعدة البيانات: | BASE |
| DOI: | 10.1029/2021GB007191 |
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