EU Horizon 2020 project

A large scale EU Horizon 2020 research and innovation project contributing to the Trans-Atlantic Research Alliance and GEO.

62 Partners, 18 Countries

International integration of Atlantic ocean observing activities – further supporters / members are welcome.

Task 3.6

Surface drifter

Lead: EUMETNET (Pierre Blouch)

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Surface drifting buoys are an important component of GOOS and GCOS. The global network of drifting buoys is coordinated by the Data Buoy Cooperation Panel (DBCP) under the auspices of the Joint WMO-IOC Commission for Oceanography and Marine Meteorology (JCOMM). The objective is to maintain a permanent network of 1250 drifting buoys operating throughout the world oceans. Within the DBCP various Action Groups are responsible for coordinating deployments in various ocean basins, where EUMETNET/Meteo France is the lead for the North Atlantic and adjacent Arctic Ocean. Members of the E-SURFMAR programme also contribute drifters to the South Atlantic, Southern and Indian Oceans. As part of AtlantOS the enhancement of the observation system will be initiated with the objective of maintaining this upgraded observation system over the long-term. This will be achieved by strengthening this activity in the South Atlantic [D3.20], where the density of drifting buoys, most especially east of 20°W, appears low in comparison to the North Atlantic, and by the development of drifters with enhanced measurements capabilities again contributing to one of the main WP3 goals to fill the observational gaps. The gapps will be filled by the development of new salinity drifters [D3.4]; [CNRS, NKE] and the development of bathythermic string drifters [D3.5; CNRS, MY]. Within EUMETNET/Meteo France data management is well designed and efficient while sustainability issues are addressed. AtlantOS will benefit from this cooperation and in particular interaction with WP7 with respect to data will be eased.

Deliverables:

D3.4 Design a buoy fitted with a low cost salinity sensor: A number of prototypes equipped with different sensors (if more than one exists) will be tested at sea with different methods to avoid bio-fouling. CNRS will conduct evaluation of the test performed by NKE. PM24

D3.5 Development of bathythermic string drifters: Designing and building about 10-15 buoys with temperature strings, deploying them and making data available to scientist. Evaluation report on the use of subsurface temperature buoy data and on their ability to provide suitable measurements in the ocean boundary layer.PM24

D3.20 Drifter network improvement Report: An improvement in drifting buoy coverage is proposed in the South Atlantic, achieved by deployments using ships of opportunity. A study report on benefits of the improved network will be included in this deliverable. Deployments will be coordinated with NOAA (Third party to Ifremer) and MET O. PM45