STEP 2016

Type Oceanographic cruise
Set This cruise is part of the set NEXT STEP
Ship L'Atalante
Ship owner Ifremer
Dates 11/07/2016 - 22/07/2016
Chief scientist(s) MICHEL Elisabeth , VIVIER Frédéric

LABORATOIRE DES SCIENCES DU CLIMAT ET DE L'ENVIRONNEMENT - UMR 8212

Orme des Merisiers

Bâtiment 714

Chemin de Saint Aubin - RD 128

91191 Gif sur Yvette Cedex

+33(0)1 69 08 77 11

contact@lsce.ipsl.fr

https://www.lsce.ipsl.fr/
DOI 10.17600/16000900
Objective

We expect this project to contribute to improve future climate simulations, by providing a better understanding and representation of possible feedbacks, both from the ocean circulation and the GHG cycle, associated with the rapid warming of the Arctic.

From the test case of an Arctic polynya, the STeP (STorfjorden Polynia multidisciplinary study) project is designed to improve our knowledge on polynya dynamics and processes associated with brine-enriched water formation, as well as on the impact of brine on the oceanic circulation and Green house Gases (GHG) cycles through a multi-disciplinary physical-biogeochemical approach.

This 2016 oceanographic cruise allowed to 1) pursue the continuous collection of physical parameters (T, S and currents) started in 2011 with a mooring in the heart of the polynya equipped with autonomous CTD sensors and an ADCP, 2) add pCO2, dissolved O2, pH sensors, an automated water sampler and a trap to the mooring to register year round carbon cycle, CH4 and N2O changes and analyze changes in deep water and DIC isotopes composition, as well as analyzing particule fluxes, and organic matter origin, 3) analyze  currents, turbulence, the carbonate chemistry parameters, the greenhouse gases in the water column, bottom water, sediment pore waters and complementing the trap samples with multinet and multicore sampling. This program also includes a winter phase (French Polar Insitute, IPEV) with measurement of some of these parameters within the sea ice. Ultimately, we expect this project to contribute to improving future climate simulations, by providing a better understanding and representation of possible feebacks, both from the ocean circulation and the GHG cycle, associated with the rapid warming of the Arctic.

Published data

Metzl Nicolas, Fin Jonathan, Lo Monaco Claire, Mignon Claude, Alliouane Samir, Bombled Bruno, Boutin Jacqueline, Bozec Yann, Comeau Steeve, Conan Pascal, Coppola Laurent, Cuet Pascale, Ferreira Eva, Gattuso Jean-Pierre, Gazeau Frédéric, Goyet Catherine, Grossteffan Emilie, Lansard Bruno, Lefèvre Dominique, Lefèvre Nathalie, Leseurre Coraline, Lombard Fabien, Petton Sébastien, Pujo-Pay Mireille, Rabouille Christophe, Reverdin Gilles, Ridame Céline, Rimmelin-Maury Peggy, Ternon Jean-François, Touratier Franck, Tribollet Aline, Wagener Thibaut, Wimart-Rousseau Cathy (2024). An updated synthesis of ocean total alkalinity and dissolved inorganic carbon measurements from 1993 to 2023: the SNAPO-CO2-v2 dataset. https://doi.org/10.17882/102337


Vivier Frederic, Lourenco Antonio, Michel Elisabeth, Pruchon Abel (2019). Hydrography and currents in Storfjorden (Svalbard) from the STEP 2016-2017 moorings. https://doi.org/10.17882/62632


Vivier Frederic, Michel Elisabeth (2016). Hydrographic and current velocity data in Storfjorden (Svalbard) from the STEP 2016 cruise. https://doi.org/10.17882/86706


Data managed by SISMER

Bibliography

Publications

Vivier Frédéric, Lourenço Antonio, Skogseth Ragnheid, Goszczko Ilona, Michel Elisabeth, Rousset Clément, Bouruet‐aubertot Pascale, Cuypers Yannis, Lansard Bruno, Waelbroeck Claire (2024). Dense Water Production in Storfjorden, Svalbard, From a 1‐Year Time Series of Observations and a Simple Model: Are Polynyas in a Warming Arctic Exporting Heat to the Deep Ocean? Journal of Geophysical Research: Oceans, 129(10), e2024JC020878 (27p.). Publisher's official version : https://doi.org/10.1029/2024JC020878 , Open Access version : https://archimer.ifremer.fr/doc/00911/102295/


Vivier Frédéric, Lourenço Antonio, Michel Elisabeth, Skogseth Ragnheid, Rousset Clément, Lansard Bruno, Bouruet‐aubertot Pascale, Boutin Jacqueline, Bombled Bruno, Cuypers Yannis, Crispi Olivier, Dausse Dennis, Le Goff Hervé, Madec Gurvan, Vancoppenolle Martin, Van Der Linden Fanny, Waelbroeck Claire (2023). Summer hydrography and circulation in Storfjorden, Svalbard, following a record low winter sea‐ice extent in the Barents Sea. Journal Of Geophysical Research-oceans, 128(2), e2022JC018648 (26p.). Publisher's official version : https://doi.org/10.1029/2022JC018648 , Open Access version : https://archimer.ifremer.fr/doc/00819/93081/


Nardelli Maria Pia, Fossile Eleonora, Péron Olivier, Howa Hélène, Mojtahid Meryem (2023). Early taphonomy of benthic foraminifera in Storfjorden ‘sea‐ice factory’: the agglutinated/calcareous ratio as a proxy for brine persistence. Boreas, 52(1), 109-123. Publisher's official version : https://doi.org/10.1111/bor.12592 , Open Access version : https://archimer.ifremer.fr/doc/00771/88317/


Rasmussen Tine L., Thomsen Erik (2021). Climate and ocean forcing of ice-sheet dynamics along the Svalbard-Barents Sea Ice Sheet during the deglaciation ∼20,000–10,000 years BP. Quaternary Science Advances, 3, 100019 (13p.). Publisher's official version : https://doi.org/10.1016/j.qsa.2020.100019 , Open Access version : https://archimer.ifremer.fr/doc/00658/77019/


Fossile Eleonore, Nardelli Maria Pia, Jouini Arbia, Lansard Bruno, Pusceddu Antonio, Moccia Davide, Michel Elisabeth, Péron Olivier, Howa Hélène, Mojtahid Meryem (2020). Benthic foraminifera as tracers of brine production in Storfjorden “sea ice factory”. Biogeosciences, 17(7), 1933–1953. Publisher's official version : https://doi.org/10.5194/bg-2019-405 , Open Access version : https://archimer.ifremer.fr/doc/00599/71122/


Oleszczuk Barbara, Michaud Emma, Morata Nathalie, Renaud Paul E., Kędra Monika (2019). Benthic macrofaunal bioturbation activities from shelf to deep basin in spring to summer transition in the Arctic Ocean. Marine Environmental Research, 150, 104746 (16p.). Publisher's official version : https://doi.org/10.1016/j.marenvres.2019.06.008 , Open Access version : https://archimer.ifremer.fr/doc/00502/61329/


References of Technical Reports

Vivier F. , E.Michel (2022), Hydrographic data from the CTD of STEP cruise, data center SEANOE, https://doi.org/10.17882/86706

Michel Elisabeth, Vivier Frédéric, And The Participants (2016). Report of the oceanographic cruise “STEP” (STorfjorden Polynya multidisciplinary study) on board Research Vessel “L’Atalante”. Tromsø, 10 July 2016 – Tromsø, 21 July 2016.


E. Michel, F. Vivier and the participants Rapport de mission STEP 2016

References of Articles published in periodicals and magazines for the general public

Site Web grand public de la campagne océanographique: http://ilsremontentletemps.inflexion.info/?q=node/10

Exposition itinérante "Ils remontent le temps" et conférences d'inauguration, OVSQ, Massy, Brest, Nantes

References of International Seminar Communications

Fossile E., Nardelli M.P., Jouini A., Lansard B., Pusceddu A., Michel E., Peron O., Howa H., Mojtahid M., Benthic foraminifera in the Storfjorden ?sea-ice factory? as tracers of brine production, TMS congress, Friburg, Switzerland, July 2019

Mojtahid, M., Jouini, A., Howa, H., Lansard, B., Michel, O. Peron, E., Baltzer, A., Nardelli, M. P., Benthic foraminiferal dissolution index for marine sediments in the Svalbard (Storfjorden), Arctic Frontiers Science, Tromsø, Norway, January 2018

Nardelli, M. P., Jouini, A., Howa, H., Lansard, B., Michel, E., Garlan, T., Vivier F. , Baltzer, A., Mojtahid, M., Reconstructing historical changes in sea-ice production in the Storfjorden polynya (Svalbard): benthic foraminifera as proxies of brine-enriched shelf waters, Arctic Frontiers Science, Tromsø, Norway, January 2018

DEA or MASTER 2 using campaign data

Jessel, Lucas : Impact de la stratification et des marées sur la formation et la transformation des eaux denses dans une polynie côtière arctique, M1 Physique, Sorbonne université, 2023.

Arthur Walbeck: Dynamique a? haute fre?quence, mare?e et turbulence: variabilite? et impact sur la formation et transformation des eaux denses dans une polynie, M2 LOCEAN, 2020

Le Ster, Loic: Carbon sink in arctic environments: Analysis of a one-year time series of in-situ seawater biogeochemical parameters in Storfjorden (Svalbard),M2-WAPE PRP REPORT, 2019

Demol, Manon: Ecologie des foraminifères benthiques modernes (vivants et morts) dans le Storfjorden en Norvège : variabilité interannuelle, M2 Ecosystèmes et Bioproduction Marine, Université de Nantes, 2018.

Jouini, Arbia : Réponse des foraminifères benthiques aux événements de plongées des saumures sous la glace arctique dans le Storfjorden en Norvège, M2 Sciences de la Mer, Parcours Géosciences Marines et Environnements Aquatiques (GMEA), Université de Perpignan, 2017.

Abel Pruchon: Hydrography and currents in Storfjorden (Svalbard) from the STEP 2016-2017 moorings, M2 LOCEAN-UNIS, 2019

Thesis using campaign data

Panetier Aurélie (2023). Shipborne Global Navigation Satellite Systems for Offshore Atmospheric Water Vapor Monitoring. PhD Thesis, ENSTA Bretagne.


Thèse Eleonora Fossile, sous la supervision de Hélène Howa, Meryem Mojtahid and Maria Pia Nardelli, Université d'Angers, en cours (2018-2021)

Thèse Fanny Van der Linden sous la direction de Bruno Delille et Jean-Louis Tison, Universités de Liège et Libre de Bruxelles, en cours 2016-2021