FN Archimer Export Format PT J TI Dissolved iron in the North Atlantic Ocean and Labrador Sea along the GEOVIDE section (GEOTRACES section GA01) BT AF Tonnard, Manon Planquette, Hélène Bowie, Andrew R. van der Merwe, Pier Gallinari, Morgane Desprez de Gésincourt, Floriane Germain, Yoan Gourain, Arthur Benetti, Marion Reverdin, Gilles Tréguer, Paul Boutorh, Julia Cheize, Marie Menzel Barraqueta, Jan-Lukas Pereira-Contreira, Leonardo Shelley, Rachel Lherminier, Pascale Sarthou, Géraldine AS 1:1,2,3;2:1;3:2,3;4:2;5:1;6:1;7:4;8:5;9:6,7;10:7;11:1;12:1;13:4;14:8;15:9;16:4,10,11;17:12;18:1; FF 1:;2:;3:;4:;5:;6:;7:PDG-REM-GM-LCG;8:;9:;10:;11:;12:;13:PDG-REM-GM-LCG;14:;15:;16:;17:PDG-ODE-LOPS-OH;18:; C1 Laboratoire des sciences de l'Environnement MARin – CNRS UMR 6539 – Institut Universitaire Européen de la Mer, Plouzané, 29280, France Antarctic Climate and Ecosystems – Cooperative Research Centre, Hobart, TAS 7001, Australia Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7001, Australia Laboratoire Cycles Géochimiques et ressources – Ifremer, Plouzané, 29280, France Ocean Sciences Department, School of Environmental Sciences, University of Liverpool, L69 3GP, UK Institute of Earth Sciences, University of Iceland, Reykjavik, Iceland LOCEAN, Sorbonne Universités, UPMC/CNRS/IRD/MNHN, Paris, France GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel Wischhofstraße 1–3, Geb. 12 24148 Kiel, Germany Fundação Universidade Federal do Rio Grande (FURG), R. Luis Loréa, Rio Grande – RS, 96200-350, Brazil Dept. Earth, Ocean and Atmospheric Science, Florida State University, 117 N Woodward Ave, Tallahassee, Florida, 32301, USA School of Geography, Earth and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, UK Ifremer, Université de Bretagne Occidentale (UBO), CNRS, IRD, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, 29280, Plouzané, France C2 UBO, FRANCE ACE CRC, AUSTRALIA UNIV TASMANIA, AUSTRALIA IFREMER, FRANCE UNIV LIVERPOOL, UK UNIV ICELAND, ICELAND UNIV PARIS 06, FRANCE IFM GEOMAR, GERMANY UNIV FED RIO GRANDE, BRAZIL UNIV FLORIDA STATE, USA UNIV PLYMOUTH, UK IFREMER, FRANCE SI BREST SE PDG-REM-GM-LCG PDG-ODE-LOPS-OH UM LOPS LEMAR IN WOS Ifremer UPR WOS Ifremer UMR WOS Cotutelle UMR DOAJ copubli-france copubli-europe copubli-univ-france copubli-int-hors-europe copubli-sud IF 4.295 TC 22 UR https://archimer.ifremer.fr/doc/00441/55233/56714.pdf https://archimer.ifremer.fr/doc/00441/55233/56715.pdf https://archimer.ifremer.fr/doc/00441/55233/70966.pdf https://archimer.ifremer.fr/doc/00441/55233/70967.pdf LA English DT Article CR GEOVIDE BO Pourquoi pas ? AB Dissolved Fe (DFe) samples from the GEOVIDE voyage (GEOTRACES GA01, May–June 2014) in the North Atlantic Ocean were analysed using a SeaFAST-picoTM coupled to an Element XR HR-ICP-MS and provided interesting insights on the Fe sources in this area. Overall, DFe concentrations ranged from 0.09 ± 0.01 nmol L−1 to 7.8 ± 0.5 nmol L−1. Elevated DFe concentrations were observed above the Iberian, Greenland and Newfoundland Margins likely due to riverine inputs from the Tagus River, meteoric water inputs and sedimentary inputs. Air-sea interactions were suspected to be responsible for the increase in DFe concentrations within subsurface waters of the Irminger Sea due to deep convection occurring the previous winter, that provided iron-to-nitrate ratios sufficient to sustain phytoplankton growth. Increasing DFe concentrations along the flow path of the Labrador Sea Water were attributed to sedimentary inputs from the Newfoundland Margin. Bottom waters from the Irminger Sea displayed high DFe concentrations likely due to the dissolution of Fe-rich particles from the Denmark Strait Overflow Water and the Polar Intermediate Water. Finally, the nepheloid layers were found to act as either a source or a sink of DFe depending on the nature of particles. PY 2020 PD FEB SO Biogeosciences SN 1726-4170 PU Copernicus GmbH VL 17 IS 4 UT 000516719200003 BP 917 EP 943 DI 10.5194/bg-17-917-2020 ID 55233 ER EF