PROJECT

scientific context, main objectives & tasks

logo remOcean

remOcean : scientific context and objectives

Due to global change and ocean response to climatic and anthropogenic forcing, it has now become critical to improve our understanding of biologically mediated carbon fluxes and to reduce the uncertainties in their estimates. At the root of much of the present uncertainty in carbon budget is the scarcity of data. Based on state-of-the-art remotely-operated observation techniques (profiling floats and satellites) and bio-optical modeling, remOcean aims at addressing the causes of variability in the so-called biological oceanic pump within key oceanic areas ...

... more about key oceanic areas

  • key area north atlantic-sub-polar gyre
    the North Atlantic sub-polar gyre
    key oceanic area

    the North Atlantic sub-polar gyre (especially Labrador Sea, Irminger Sea, Island basin), which despite representing only 1.4% of the ocean’s area, accounts for about 20% of the global ocean carbon sink.

  • key area southern ocean.jpg
    the Southern Ocean
    key oceanic area

    the Southern Ocean (with a focus on its Indian sector) a particularly unexplored area with a potentially large impact on the ocean carbon sink.

  • key area sub-tropical gyres
    the sub-tropical gyres
    key oceanic area

    the sub-tropical gyres (with a focus on North and South Atlantic gyres) which represent ~ 60% of the ocean surface and whose status as oceanic deserts still remains a matter of debate.

remOcean: implementation plan along five main activities.

  • Activity 1. Developing and testing of profiling floats

    The remOcean team elaborates the specifications of the instrumentation. This includes test series of profiling floats equipped with specific miniaturized sensors that measure physical (e.g. temperature and salinity), chemical (e.g. oxygen and nitrate) and bio-optical (e.g. density of particles and chlorophyll quantity) properties of the Oceans.
  • Activity 2. Deploying the profiling floats & data management

    The autonomous platforms will be deployed in oceanic key areas to explore and observe their biogeochemical characteristics. Therefore, the project addresses the North and South Pacific, the North and South Atlantic as well as regional seas such as the Mediterranean. Once in place, the profiling floats communicate in real time the acquired data. After an adequate treatment of the raw data, the datasets will be archived to facilitate access and availability for the scientific community.
  • Activity 3. Building a 3D vision of biogeochemical properties of the Ocean

    Based on the observation that the Ocean surface is as blue as it is poor in phytoplankton, scientists transform this information obtained by satellites in worldwide maps of phytoplankton concentration. Combing and analyzing such ocean color data remotely sensed by satellites with the corresponding data of profiling floats, the project remOcean aims to complete the observations with vertical data of the water column, where the satellite cannot “see” anymore.
  • Activity 4. Establishing regional carbon budget

    This activity aims to contribute to a better understanding the role of phytoplankton in the carbon cycle. Since phytoplankton is the first organism in the Ocean that transfers “physical” energy in vegetal material and, therefore, is at the very beginning of the food chain, this knowledge is essential in the context of a pluri-disciplinary research on environmental change.
  • Activity 5. Dissemination and outreach

    Using high-tech equipment and addressing scientific questions to which the wider public is particularly sensitive, a further objective is to present some physical and technical background, science topics and main results in a comprehensive way. The remOcean team seeks the interaction and communication also with the non-scientific community.

KEY AREAS

Focus on Oceanics Hotspots

KEY AREA N°1 NORTH ATLANTIC SPG
KEYAREAS N°2 AUSTRAL OCEAN
KEY AREA N°3a NORTH ATLANTIC STG
KEYAREAS N°3b SOUTH ATLANTIC STG

KEY AREA 1 : North Atlantic Sub Polar Gyre (SPG)

Seasonal dynamics of phytoplankton biomass and associated fluxes.

KEY AREAS 2 : Austral Ocean

Comparative study of biogeochemical fluxes in various provinces of the Atlantic and Indian sectors of the Austral Ocean.

KEY AREA 3a : North Atlantic Sub Tropical Gyre (STG)

Comparative study of biogeochemical fluxes and deep chlorophyll maximum dynamics in the two oceanic "deserts" of the Atlantic Ocean.

KEY AREAS 3b : South Atlantic Sub Tropical Gyre (STG)

Comparative study of biogeochemical fluxes and deep chlorophyll maximum dynamics in the two oceanic "deserts" of the Atlantic Ocean.

TEAM

Learn more about remOcean Team

The remOcean project results from the match between emerging technologies in ocean observation and timely scientific questions. The remOcean team thus involves experts on both aspects: it includes engineers dedicated to technology development and data management as well as confirmed and early career (post-docs and PhDs) scientists. One of the strengths of remOcean relies on a collaborative environment that favors day-to-day exchange between these experts. Furthermore this technological and scientific team is accompanied by an outreach duo, which targets a non-scientific audience, and in particular young people.

ALL
SCIENTISTS
ENGINEERS
OUTREACH
POSTDOCS
PhDs
CLOSELY RELATED COLLABORATORS
Hervé Claustre
Project leader (Scientist Staff)
Antoine Poteau
Engineer Staff
Carolyn Scheurle
Outreach Staff
Fabrizio D’Ortenzio
Scientist Staff
Catherine Schmechtig
Engineer Staff
Grigor Obolensky
Engineer Staff
Julia Uitz
Scientist Staff
Edouard Leymarie
Engineer Staff
Martina Ferraris
Outreach Staff
Christophe Penkerc’h
Engineer Staff
Vincent Taillandier
Engineer Staff
Raphaëlle Sauzede
PhD
Lionel Guidi
Scientist Staff
Emanuele Organelli
PostDoc
Marie Barbieux
PhD
Léo Lacour
PhD
Nicolas Mayot
PhD
Nathan Briggs
PostDoc
Orens De Fommervault
PhD
Louis Prieur
Scientist Staff
Annick Bricaud
Scientist Staff
Mathieu Ardyna
PostDoc
Thomas Jessin
Outreach Staff
Xiaogang Xing
Closely Related Collaborator
Alexandre Mignot
Closely Related Collaborator
Arne Körtzinger
Closely Related Collaborator
Henry Bittig
PostDoc
Giorgio Dall’Olmo
Closely Related Collaborator

FLOATS

All about profiling floats

Profiling floats are autonomous platforms that drift in the Oceans for scientific purposes. Equipped with miniaturized sensors they can be deployed even in remote regions in order to explore and observe the characteristic water properties.

By changing their floatability they are able to sink and to rise, like a yo-yo, within the upper 2000 meters of the water column. Once on the surface, the profiling floats transfer in “real-time” their collected data to the accompanying research center. This also is the occasion for the scientists to communicate with the underwater robot before it descents to another dive cycle.

This modern technology already has its “classics”: profiling floats that measure sea temperature and salinity as well as the corresponding water depth on a 10 days diving cycle. To these physical observations, the project remOcean seeks to add a “biological aspect” by integrating sophisticated sensors e.g. on nitrate and the quantity of phytoplankton.

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Mesured variable
Potential temperature(°)

Mesured variable : Potential temperature(°)

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Mesured variable
Chlorophyll a (mg.m-3)

Mesured variable : Chlorophyll a (mg.m-3)

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Mesured variable
Nitrate Concentration (µmol.l-1)

Mesured variable : Nitrate Concentration (µmol.l-1)

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Mesured variable
Time serie Potential temperature(°)

Mesured variable : Time serie Potential temperature(°)

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Mesured variable
Time serie Ed 412 nm (µW.cm-2.nm-1)

Mesured variable : Time serie Ed 412 nm (µW.cm-2.nm-1)

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Mesured variable
Dissolved Oxygen (µmol.Kg-1)

Mesured variable : Dissolved Oxygen (µmol.Kg-1)

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DATA

The data sets acquired by the profiling floats can be selected and visualized on the interactive global map

remOcean interactive global map

Today, the float technology developed within remOcean is also used by other « companion » projects on national and international levels. These projects either reinforce the observations in remOcean key areas or allow additional investigations in other oceanic hotspots.

Access directly to the sampling efforts and associated data here:

  • remOcean floats

    Access to the data map with the specific filter project : remOcean floats.
  • Mediterranean Sea floats

    All the Bio-Argo floats including those of NAOS, Bio-Argo Italia, Bio-Argo France et MOOSE.

    Access to the data map with the specific filter project : Mediterranean Sea.

  • Atlantic Ocean floats

    All the Bio-Argo floats including those of remOcean, Bio-Argo UK, Bio-Argo France, Eaims

    Access to the data map with the specific area : Atlantic Ocean.

  • Austral Ocean floats

    All the Bio-Argo floats including remOcean, Bio-Argo France, SOCLIM, SOCCOM

    Access to the data map with the specific status : Austral Ocean.

  • adopt a float"initiative"

    An educational project closely linked to “mon océan et moi” .

    Access to the data map with the specific status : ADOPT A FLOAT.

OUTREACH

remOcean aims to enhance ocean literacy

The team proposes several activities that address in particular a non-scientific public.

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REMOCEAN OUTREACH
CLOSELY RELATED OUTREACH
mon océan et moi
outreach project
adopt a float
outreach initiative
dissemination activity : Medites
closely related outreach

CONTACT US

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CONTACT DETAILS

Project Leader

Hervé Claustre

Address

Laboratoire d'Océanographie de Villefranche (LOV)
Observatoire Océanologique de Villefranche(OOV)

181 chemin du Lazaret
06230 Villefranche-sur-Mer
FRANCE

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WHERE WE ARE

NEWS

All the latest news around the remOcean Project

remOcean floats deployment in the Southern Atlantic

remOcean at the Ocean Sciences Meeting 2016

MARCH 2016

remOcean at the French Science Festival in Villefranche-sur-mer

remOcean at the French Science Festival in Villefranche-sur-mer and Fa'a'ā/Tahiti

OCTOBER 2015

remOcean floats deployment in the Southern Atlantic

Deployment of remOcean floats in the Southern Atlantic

MAY 2015

remOcean floats deployment on Marion Dufresne

Second deployment of remOcean floats in the Austral Ocean: Kerguelen Plateau

JANUARY 2015

remOcean floats

First deployment of remOcean floats in the Austral Ocean: GOODHOPE line

DECEMBER 2014

AGULHAS_II

Going to South Africa to prepare floats for deployments

NOVEMBER 2014

North Atlantic Ocean

The AtlantOS project will be funded

NOVEMBER 2014