EMSO-LO/ANTARES - An underwater observatory as a follow up of the ANTARES telescope

EMSO-LO

 

The EMSO ANTARES site, located at 2500 m depth offshore Toulon is part the European EMSO-ERIC infrastructure and EMSO France Research Infrastructure (European Multidisciplinary Subsea Observatory-European Research Infrastructure Consortium). The EMSO ERIC aims at collecting long term time series over 12 years all around Europe with the objective to follow up the consequences of global change on heat content, ocenaic acidification, de-oxygenation, deep water marine ecosystem. Also EMSO aims to provide tools services for management and mitigation of the ecosystem.

EMSO France is a research built or multidisciplinary observatories, real time ior delayed tilme based on mooring line and deep-sea observatories. The EMSO-ANTARES is supported by the MOOSE national network.

The EMSO ANTARES is dedicated to the monitoring of the water column including hydrological properties, the northern current dynamics and impact on the water column, the effect of deep-water convection in Westerm Mediterranean Sea on deep ecosystems properties and functioning.

Connection between surface production, particle fluxes and state variables to infer ecosystem functioning via proxy such as bioluminescence, O2 and quantify biological pump variability and dynamics.  

Tamburini et al. 2013, Special Jury Prize of the magazine la Recherche' 2014

The line is instrumented with ten CTD and five current-meters, allowing a more extended coverage of the water column (500 m to the bottom). Every 30 minutes, data from the instruments along the line are collected by the computer. A daily file is then sent to the interface module of the MII using acoustic data transmission, and from there to shore through the cable network.The EMSO-ANTARES observatory is connected to the shore to provide real time data. It is based on the ALBATROSS (Autonomous Line with a Broad Acoustic Transmission for Research in Oceanography and Sea Sciences) instrumented line that is deployed in the vicinity of the MII Instrumentation module. The ALBATROSS line consists of two 1000m long inductive cables connected to an embarked computer through an inductive modem.

Presently data include pressure, temperature, conductivity, dissolved oxygen, suspended matter, current (velocity and direction), but the ALBATROSS mooring line is open to the community and it is available to host old/new or emerging sensors.

ROBOT

Benthic RObot for Deep Environment Observation in mediTerranee - KM3Net / EMSO-Ligure Ouest / ANTARES

 

In the next cruise at the EMSO - ANTARES site, we will deploy on board the N/O Pourquoi Pas using the submersible Nautile several instruments including the benthic crawler ROBOT.

ROBOT will be our benthic moving crawler with several probes (CTD, turbidimeter, current meter) and our eyes with a highly sensitive camera to see deep-sea organisms, including those doing light (bioluminescent organisms).