Type Oceanographic cruise
Ship Téthys II
Ship owner CNRS until 2019 - IFREMER since 2020
Dates 29/10/2015 - 06/11/2015
Chief scientist(s) DOGLIOLI Andrea


163 avenue de Luminy

Bâtiment Méditerranée

13288 Marseille Cedex 9

+33(0)4 86 09 05 00


DOI 10.17600/15008800

The scientific objectives of the project OSCAHR (Observing Submesoscale Coupling At High Resolution) are to characterize a submesoscale structure and to study its influence on the distribution of biogenic elements and the structure and dynamics of the first trophic levels associated with it. The strategy is based on an adaptive satellite-based approach and on the use of very recent or new instruments allowing to sample the surface layer at high spatial and temporal frequency. The original set of multidisciplinary data will allow to validate measurements from remote sensing (radar altimetry, ocean color, reconstitution of planktonic assemblages) in coastal areas.

Scientific context

Main results

Data acquired and analyses carried out at sea and on shore



Comby Caroline, Barrillon Stéphanie, Fuda Jean-Luc, Doglioli Andrea M., Tzortzis Roxane, Grégori Gérald, Thyssen Melilotus, Petrenko Anne A. (2022). Measuring vertical velocities with ADCPs in low-energy ocean. Journal Of Atmospheric And Oceanic Technology, 39(11), 1669-1684. Publisher's official version : https://doi.org/10.1175/JTECH-D-21-0180.1 , Open Access version : https://archimer.ifremer.fr/doc/00787/89891/

Tzortzis Roxane, Doglioli Andrea M, Barrillon Stéphanie, Petrenko Anne A, D'Ovidio Francesco, Izard Lloyd, Thyssen Melilotus, Pascual Ananda, Barcelo-Llull Barbara, Cyr Frédéric, Tedetti Marc, Bhairy Nagib, Garreau PierreORCID, Dumas Franck, Gregori Gérald (2021). Impact of moderately energetic fine-scale dynamics on the phytoplankton community structure in the western Mediterranean Sea. Biogeosciences, 18(24), 6455-6477. Publisher's official version : https://doi.org/10.5194/bg-18-6455-2021 , Open Access version : https://archimer.ifremer.fr/doc/00683/79486/

Rousselet L., Doglioli A.M., de Verneil A., Pietri A., Della Penna A., Berline L., Marrec P., Grégori G., Thyssen M., Carlotti F., Barillon S., Simon‐bot F., Bonal M., D'Ovidio F., Petrenko A. (2019). Vertical motions and their effects on a biogeochemical tracer in a cyclonic structure finely observed in the Ligurian Sea. Journal Of Geophysical Research-oceans, 124(6), 3561-3574. Publisher's official version : https://doi.org/10.1029/2018JC014392 , Open Access version : https://archimer.ifremer.fr/doc/00490/60214/

Meloni M., Bouffard J., Doglioli A.M., Petrenko A.A., Valladeau G. (2019). Toward science-oriented validations of coastal altimetry: Application to the Ligurian Sea. Remote Sensing Of Environment, 224, 275-288. Publisher's official version : https://doi.org/10.1016/j.rse.2019.01.028 , Open Access version : https://archimer.ifremer.fr/doc/00482/59395/

Marrec Pierre, Gregori Gerald, Doglioli Andrea M., Dugenne Mathilde, Della Penna Alice, Bhairy Nagib, Cariou Thierry, Nunige Sandra Helias, Lahbib Soumaya, Rougier Gilles, Wagener Thibaut, Thyssen Melilotus (2018). Coupling physics and biogeochemistry thanks to high resolution observations of the phytoplankton community structure in the North-Western Mediterranean Sea. Biogeosciences, 15(5), 1579-1606. Publisher's official version : https://doi.org/10.5194/bg-15-1579-2018 , Open Access version : https://archimer.ifremer.fr/doc/00398/50970/

Petrenko Anne A., Doglioli Andrea M., Nencioli Francesco, Kersale Marion, Hu Ziyuan, D'Ovidio Francesco (2017). A review of the LATEX project: mesoscale to submesoscale processes in a coastal environment. Ocean Dynamics, 67(3-4), 513-533. Publisher's official version : https://doi.org/10.1007/s10236-017-1040-9 , Open Access version : https://archimer.ifremer.fr/doc/00472/58351/

Cyr Frédéric, Tedetti Marc, Besson Florent, Beguery Laurent, Doglioli Andrea M., Petrenko Anne A., Goutx Madeleine (2017). A New Glider-Compatible Optical Sensor for Dissolved Organic Matter Measurements: Test Case from the NW Mediterranean Sea. Frontiers In Marine Science, 4(89), 19p. Publisher's official version : https://doi.org/10.3389/fmars.2017.00089 , Open Access version : https://archimer.ifremer.fr/doc/00654/76597/

References of Technical Reports

Tzortzis Roxane (2019). Étude de la circulation à sous méso-échelle et ses implications sur la biogéochimie grâce aux mesures de la campagne PROTEVS-SWOT 2018. Rapport de stage.

Puillat IngridORCID, Karlson Bengt, Artigas Felipe, Grémare Antoine, Nizzetto Lucas, Rubio Anna, Laakso Lauri, Seppala Jukka, Mourre Baptiste (2016). JERICO-NEXT. Progress Report #1. JERICO-NEXT-WP4-D4.2-061216-V2.0. https://archimer.ifremer.fr/doc/00382/49333/

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

(2018) La physique marine, chef de l'orchestre phytoplanctonique ! Dernières nouvelles du CNRS-INSU http://www.insu.cnrs.fr/node/8400

References of International Seminar Communications

Meloni M., Doglioli A., Petrenko A., Bouffard J., Valladeau G. (2018) Multi-Scale Analysis and Applications of Coastal Altimetry Observations Over the Ligurian Sea. 11th Coastal Altimetry Workshop, Frascati, Italy http://www.mio.univ-amu.fr/~doglioli/Abstract%20Book%20CAW-11.pdf

Bouffard J., Meloni M., Fernandes J., Lázaro C., Casadio S., Doglioli A.M., Petrenko A., Femenias P., (2017) Coastal Altimetry in Support to Marine Observatory and Marine Observatory in Support to Coastal Altimetry: Multi-Platform Validations of Altimetry for Monitoring the Variability of Coastal Fronts. 10th Coastal Altimetry Workshop, Florence, Italy. http://esaconferencebureau.com/docs/default-source/17c07-img/abstract-book.pdf?sfvrsn=0

Marrec P., Doglioli A.M., Grégori G., Della Penna A., Wagener T., Rougier G., Bhairy N., Dugenne M., Lahbib S., Thyssen M., (2017) Unravel the submesoscale dynamics of the phytoplanktonic community in the NW Mediterranean Sea by in situ observations: the 2015 OSCAHR cruise. EGU General Assembly 2017, Vienna, Austria. http://meetingorganizer.copernicus.org/EGU2017/EGU2017-14839.pdf

Meloni M., Bouffard J., Doglioli A.M., Petrenko A.A. (2017) Multi-scale analysis of coastal altimetry data, multi-sensor observations and numerical modelling over the North Western Mediterranean Sea. 10th Coastal Altimetry Workshop, Florence, Italy. http://esaconferencebureau.com/docs/default-source/17c07-img/abstract-book.pdf?sfvrsn=0 http://www.mio.univ-amu.fr/~doglioli/Meloni_etal_CAW2017poster.pdf

Doglioli A.M., Grégori G., Thyssen M., Wagener T., Marrec P., Rougier G., Bhairy N., Fenouil J., de Verneil A., Rousselet L., Cyr F., Petrenko A.A., André J.-M., d'Ovidio F., Pietri A., Nencioli F., Jullion L., Pinazo C., Yohia C., Marsalaix P., (2016) Mapping the planktonic community across submesoscale physical features: the 2015 OSCAHR cruise in the NW Mediterranean. 48th International Liège Colloquium on Ocean Dynamics, Liège, Belgium. http://www.mio.univ-amu.fr/~doglioli/Doglioli_etal_Liege16oral_OSCAHR_Abstract.pdf http://www.mio.univ-amu.fr/~doglioli/Doglioli_etal_Liege16oral_OSCAHR_Slides.pdf

Marrec P. et al., (2016). Coupling FerryBox and automated flow cytometer: a new approach for studying biogeochemical processes and CO2 system variability in relation to phytoplankton community structure. 7th FerryBox Workshop, Heraklion, Greece, Apr. 2016. Oral presentation.

Marrec P., A.M. Doglioli , G. Grégori , T. Wagener, G. Rougier , N. Bhairy , J. Fenouil , M. Dugenne , S. Lahbib , and M. Thyssen (2016). Unravel the submesoscale dynamics of the phytoplanktonic community in the NW Mediterranean Sea from in situ observations: The 2015 OSCAHR cruise. Ocean Biogeochemistry, Gordon Research Conference, The Biologically-Driven Ocean Carbon Pumps, Jun. 2016. Poster. https://oscahr.mio.osupytheas.fr/Marrec_etal_HongKong16poster_OSCAHR.pdf

References of National Seminar Communications

Marrec P. (2019). Dynamics of phytoplankton community structure using automated flow cytometry: From single-cell analysis to fine-scale physical and biogeochemical variability. Bio@Noon Seminar, GSO-URI, Narragansett, RI, US, 23 January 2019.

Marrec P. et al (2018). High-frequency observations of the phytoplankton community structure in the Mediterranean Sea. 3rd JERICO-NEXT Workshop on Phytoplankton Automated Observation, MIO, Marseille, France, 19-21 March 2018.

Marrec P. (2017). Submesoscale dynamics of the phytoplanktonic community structure in the North-Western Mediterranean Sea from in situ observations: The 2015 OSCAHR cruise. FINEMED 2017 Workshop, MIO, Marseille, France, June 2017

DEA or MASTER 2 using campaign data

Luiz André Schiaveto Neto L. A. (2017) ANALYSE DES RÉSULTATS DE MODÉLISATION 3D COUPLÉE PHYSIQUE - BIOGÉOCHIMIQUE DE LA CAMPAGNE OSCAHR. http://www.mio.univ-amu.fr/~doglioli/OSCAHR/Rapport_Stage_ENSTA_Luiz-Andre_SCHIAVETO-NETO.pdf

Bonal M. (2016) Structure de la communauté ultraplanctonique en Méditerranée Nord-Occidentale en relation avec les caractéristiques hydrologiques : Campagne OSCAHR. http://www.mio.univ-amu.fr/~doglioli/OSCAHR/Rapport_Stage_M2_BEM_Mathias_BONAL.pdf

Georges A. (2016) Reconstruction du courant à partir d'une station radar (CODAR SeaSonde) unique et comparaisons avec des observations in situ et satellitales. http://www.mio.univ-amu.fr/~doglioli/OSCAHR/Rapport_Stage_M2_PSE_Aurelien_GEORGES.pdf

Simon-Bot François (2016) Traitement des données LOPC et filets verticaux; distribution 3D des particules au cours de la campagne OSCAHR. https://oscahr.mio.osupytheas.fr/Rapport_Stage_M1_BEM_Francois_SIMON-BOT.pdf

Thesis using campaign data

Rousselet Louise (2018). Étude des circulations à (sous)mésoéchelle et de leur influence sur la distribution spatiale des éléments biogéochimiques et biologiques à l’aide de mesures in situ et satellites couplées physique-biogéochimie / Study of (sub)mesoscale circulations and their influences on the spatial distribution of biogeochemical/biological elements with coupled physical and biogeochemical in situ and satellite observations. PhD Thesis, Université Aix Marseille.

Rousselet L. (2018) Étude de l'influence de la circulation à (sous)mésoéchelle sur la distribution spatiale des éléments biogéochimiques et biologiques à l'aide de mesures in situ et satellites couplées physique-biogéochimie. http://www.theses.fr/s182477