Iroise buoy s data from Coriolis data center as core parameter support for Brest Bay and Iroise sea studies

Date 2020-05-11
Temporal extent 2000-07-13 -2020-03-23
Author(s) Rimmelin-Maury Peggy1, Charria GuillaumeORCID2, Repecaud Michel3, Quemener LoicORCID3, Beaumont Laurence4, Guillot Antoine5, Gautier LaurentORCID3, Prigent SebastienORCID3, Le Becque Thierry1, Bihannic Isabelle6, Bonnat Armel7, Le Roux Jean-FrancoisORCID2, Grossteffan Emilie1, Devesa Jérémy6, Bozec Yann8
Affiliation(s) 1 : Institut Universitaire Européen de la Mer (IUEM), OSU-UMS3113, F-29280, Plouzané, France
2 : Ifremer, Univ. Brest, CNRS, IRD, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, 29280 Brest, France
3 : Ifremer, Centre de Brest, REM/RDT/DCM, F-29280, Plouzané, France
4 : CNRS, DT-INSU, UPS855, 92195 Meudon, France
5 : CNRS, DT-INSU, UPS855, 92195 Plouzané, France
6 : IUEM, UMR-CNRS 6539 Laboratoire de l’Environnement Marin (LEMAR), OSU IUEM, F-29280, Plouzané, France.
7 : Ifremer, Service Sismer, Centre Bretagne - ZI de la Pointe du Diable - CS 10070 - 29280 Plouzané
8 : Sorbonne Université, Station Biologique de Roscoff, 29680 Roscoff
DOI 10.17882/74004
Publisher SEANOE
Keyword(s) environmental data, coastal system, high frequency monitoring, long term evolution, automatic buoy

The COAST-HF-MAREL-Iroise buoy is a scientific plateform to monitor at high frequency (subhourly) and for long term (since 2000) the coastal ecosystem of the Bay of Brest, which is impacted by both continental and Iroise Sea inputs.This buoy is a part of the national observation network COAST-HF - COAstal ocean observing system-HighFrequency ( from the ILICO research infrastructure ( and is property of IUEM (Institut Universitaire Européen de la Mer) and Ifremer. The buoy is moored at 200 m of the coast at the outlet of the Bay of Brest where manual sampling is also performed for the weekly observation network SOMLIT-Portzic ( Both data base are complementary so that manual data are used to qualify and/or correct buoy’s data (e. g. for temperature, salinity and dissolved oxyge). Corrected data are subsequently called « adjusted-parameter » in the Iroise data base. Manual SOMLIT-Portzic data are also systematically used to convert fluorescence sensor data collected in raw fluorescence unit(FFU) into « eq-µg/L of  chlorophyll » : all fluorescence data are then available as « adjusted-fluorecence » in the data base.

Precision estimated of the complete data collection process is : temperature (±0.1°C), conductivity (±0.3mS/cm), dissolved oxygen (±10%), in vivo fluorescence (±10%), and turbidity (±10%). By the mean of two additional sensors, these core parameters are completed by aerial Photosynthetic Activated Radiation (PAR) and FugacityCO2 (±3µatm). The data can be viewed on the website:

Licence CC0
Acknowledgements Iroise buoy has been funded by European Union- Feder Brittany, CNRS, Ifremer and University of Western Brittany Brest.
Sensor metadata

- Multiparameter MP7-NKE probe since 2010: WTW sensor for Temperature and conductivity), optode (dissolved oxygene), Turner Design Cyclops (Chla-Fluorometer), Seapoint (backscattering turbidity), potentiometric sensor (pH)

- CARbon-Interface-Ocean-Atmosphere sensor (DT INSU/CNRS)

- Satlantic PAR sensor

- antifouling protection: chlorination

File Size Format Processing Access
Data extracted from Coriolis Data Center : Ref. Iroise Stanne Station : 6200450, 06/05/2020. 102 MB CSV Quality controlled data Open access
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How to cite 

Rimmelin-Maury Peggy, Charria Guillaume, Repecaud Michel, Quemener Loic, Beaumont Laurence, Guillot Antoine, Gautier Laurent, Prigent Sebastien, Le Becque Thierry, Bihannic Isabelle, Bonnat Armel, Le Roux Jean-Francois, Grossteffan Emilie, Devesa Jérémy, Bozec Yann (2020). Iroise buoy s data from Coriolis data center as core parameter support for Brest Bay and Iroise sea studies. SEANOE.