HOSEA - High frequency Observation network for the environment in coastal SEAs

An IFREMER coastal observation network from LOPS based on:

Spatial and/or temporal High Frequency sampling

Automated systems

(near)real time data access

Scientific objectives

A long term coherent network to analyze and to understand:

Evolution and varaibility of currents and hydrological structure

Water and mass exchanges between land and ocean

Nature and and availability changes of nutrients

Structure evolution of trophic chain
(index of the plancton biodiversity)

considering intermittent and extreme events to effects of climate change in coastal regions.

Components of the network

Three main observation systems:

  • Fixes platforms,
  • Opportunity measurements,
  • Coastal profilers.

(1) Plateformes fixes

o MAREL systems (MAREL Molit, MesuRho, MAREL Carnot): multi-instrumented "open" buoys,

Data access (Molit and Carnot)

Description and access to Molit data: DOI

Description and access to Carnot data: DOI

Data access (Mesurho)

o SMATCH (NKE) buoys of the island network: autonomous T/S probes (could be extended to multiparameter probes),

Data access 

o SMATCH for shellfish farming (RESCO network): autonomous T/S probes in shellfish farming area.

Data access

Three added systems in the network:
SMILE buoy (PI: F. Jacqueline) deployed in Bay of Seine in May 2015;

– SAUMONARD buoy (PIs: S. Guesdon and C. Bechemin) in Pertuis Charentais;

– D4 buoy (PI: R. Verney), developed in PREVIMER project. This system could be deployed in different sites following scientific needs.

(2) Measurements on board opportunity vessels

• RECOPESCA network (on board fishing vessels).

Data access 

(3) Les profileurs côtiers

• ARVOR-C and ARVOR-Cm (André et al., 2010).

Data access 

Data access for fixed stations: http://www.ifremer.fr/co-en/

HOSEA is a component of the Coriolis programme.

Contact: Guillaume Charria