MARLEY seafloor observing system, environmental data for 2021-2022

MARLEY (Monitoring deep-seA coRaL EcosYstems) is a deep seafloor observing system dedicated to the monitoring of cold-water coral habitats. The system is deployed in the Lampaul canyon off Brittany, France since August 2021 and maintained each year during the ChEReef-Obs cruises. The study site is a coral garden dominated by Madrepora oculata, located on a sedimented platform at 780 m depth. MARLEY is equipped with a CTD SBE 37-SIP, an oxygen optode Aanderaa (4330 or 4831), an ADCP Teledyne RDI Workhorse 300kHz, a turbidity sensor Wetlabs ECO NTU (sensitivity: 0-1000 NTU), a sediment trap Technicap PPS 4/3 – 24 bottles and a camera module. The camera module, which can be moved from up to 30 m from the main station, is equipped with a camera AXIS Q1786, two flash lights and a fluorometer & scattering meter SEA-BIRD ECO FLNTU. All sensors are controlled and synchronised by the Communication and Storage Front-end - 2nd generation (COSTOF2), which is also managing data storage. Optical sensors are protected from fouling by electrochlorination (20 seconds, each 6 hours). The oxygen optode is calibrated each year prior to deployment. These datasets provide raw data from the oxygen optode Aandera 4831, the CTD Seabird SBE37, the Wetlabs ECO NTU and the SEAR-BIRD ECO FLNTU covering the period 28/08/2021 to 19/01/2022, with a frequency of 15 minutes. Data from Wetlabs ECO NTU include raw counts and Nephelometric Turbidity Unit (NTU) derived from manufacturer’s calibration with Scale Factor = 0.0611 and Dark Counts = 50. Data form SEABIRD ECO FLNTU include raw counts at 695 nm (Chlorophyll) and 700 nm (Turbidity). Chlorophyll concentration (µg/l) is derived from manufacturer’s calibration with Scale Factor = 0.0180 and Dark Counts = 48. Nephelometric Turbidity Unit (NTU) is derived from manufacturer’s calibration with Scale Factor = 0.0481 and Dark Counts = 50.

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scieNtific Open data Edition (SEANOE) publication service and received the recorded DOI.

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Simple

Date (Creation)
2022-01-01
Date (Revision)
2024-12-06
Date (Publication)
2025-01-31
Date (Publication)
Citation identifier
a53ad03f-3130-1303-3032-000000102345
Code
DOI:10.17882/102345
Other citation details

Tourolle Julie, Moreau Bertrand, Lagadec Jean Romain, Menot Lenaick (2022). MARLEY seafloor observing system, environmental data for 2021-2022. SEANOE. https://doi.org/10.17882/102345

Point of contact
Organisation name Individual name Electronic mail address Role
SEA scieNtific Open data Edition

data@seanoe.org

Publisher
Ifremer, Scientific Information Systems for the sea

sismer@ifremer.fr

Dataset Holding Organisation
Ifremer, Scientific Information Systems for the sea

sismer@ifremer.fr

Author
GEMET - INSPIRE themes, version 1.0
SeaDataNet Agreed Parameter Groups
SeaDataNet device categories
SeaVoX Device Catalogue
SeaDataNet Parameter Discovery Vocabulary
CRUISE SUMMARY REPORT INVENTORY (CSR)
SeaVoX Platform Categories
MEDIN data format categories
Keywords
    Access constraints
    Other restrictions
    Other constraints
    no limitations to public access
    Use limitation

    Conditions for access and use apply
    Use constraints
    Other restrictions
    Other constraints

    CC-BY 4.0
    Character set
    UTF8
    Topic category
    • Oceans
    Begin date
    2021-08-28
    End date
    2022-01-19
    N
    S
    E
    W
    thumbnail




    Supplemental Information

    ChEReef cruise 2021 : 10.17600/18001448
    Supplemental Information

    ChEReef cruise 2022 : 10.17600/18000571
    Unique resource identifier
    WGS 1984

    Spatial representation info

    No information provided.
    Distribution format
    Name Version
    Delimited

    1
    OnLine resource
    Protocol Linkage Name

    WWW:DOWNLOAD-1.0-http--download

         		https://cloud.emodnet-ingestion.eu/index.php/s/9BvgzmDeOS8HwMM

    WWW:LINK-1.0-http--link
    Hierarchy level
    Dataset

    Conformance result

    Title

    COMMISSION REGULATION (EC) No 1205/2008 of 3 December 2008 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards metadata

    Date (Publication)
    2010-12-08
    Explanation

    See the referenced specification
    Pass
    No

    Conformance result

    Title

    Corrigendum to INSPIRE Metadata Regulation published in the Official Journal of the European Union, L 328, page 83
    Date (Publication)
    2010-12-08
    Explanation

    See the referenced specification
    Pass
    No

    Conformance result

    Title

    Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

    Date (Publication)
    2010-12-08
    Explanation

    See the referenced specification
    Pass
    No
    Statement

    Raw data,Processed data|MARLEY (Monitoring deep-seA coRaL EcosYstems) is a deep seafloor observing system dedicated to the monitoring of cold-water coral habitats. The system is deployed in the Lampaul canyon off Brittany, France since August 2021 and maintained each year during the ChEReef-Obs cruises. The study site is a coral garden dominated by Madrepora oculata, located on a sedimented platform at 780 m depth.



    MARLEY is equipped with a CTD SBE 37-SIP, an oxygen optode Aanderaa (4330 or 4831), an ADCP Teledyne RDI Workhorse 300kHz, a turbidity sensor Wetlabs ECO NTU (sensitivity: 0-1000 NTU), a sediment trap Technicap PPS 4/3 – 24 bottles and a camera module. The camera module, which can be moved from up to 30 m from the main station, is equipped with a camera AXIS Q1786, two flash lights and a fluorometer & scattering meter SEA-BIRD ECO FLNTU.



    All sensors are controlled and synchronised by the Communication and Storage Front-end - 2nd generation (COSTOF2), which is also managing data storage. Optical sensors are protected from fouling by electrochlorination (20 seconds, each 6 hours). The oxygen optode is calibrated each year prior to deployment.



    These datasets provide raw data from the oxygen optode Aandera 4831, the CTD Seabird SBE37, the Wetlabs ECO NTU and the SEAR-BIRD ECO FLNTU covering the period 28/08/2021 to 19/01/2022, with a frequency of 15 minutes.



    Data from Wetlabs ECO NTU include raw counts and Nephelometric Turbidity Unit (NTU) derived from manufacturer’s calibration with Scale Factor = 0.0611 and Dark Counts = 50.



    Data form SEABIRD ECO FLNTU include raw counts at 695 nm (Chlorophyll) and 700 nm (Turbidity). Chlorophyll concentration (µg/l) is derived from manufacturer’s calibration with Scale Factor = 0.0180 and Dark Counts = 48. Nephelometric Turbidity Unit (NTU) is derived from manufacturer’s calibration with Scale Factor = 0.0481 and Dark Counts = 50.

    Metadata

    File identifier
    a53ad03f-3130-1303-3032-000000102345 XML
    Metadata language
    English
    Character set
    UTF8
    Hierarchy level
    Dataset
    Date stamp
    2025-05-07T00:00:00
    Metadata standard name

    ISO 19115:2003/19139
    Metadata standard version

    1.0
    Metadata author
    Organisation name Individual name Electronic mail address Role
    Ifremer, Department of Physical Resources and Sea-Bed Ecosystems Point of contact
     
     

    Overviews

    Spatial extent

    thumbnail

    Keywords

    GEMET - INSPIRE themes, version 1.0

    Oceanographic geographical features
    MEDIN data format categories

    Delimited
    SeaDataNet Agreed Parameter Groups

    Acoustics Rate measurements (including production, excretion and grazing) Sedimentation and erosion processes Suspended particulate material Water column temperature and salinity
    SeaDataNet Parameter Discovery Vocabulary

    Concentration of suspended particulate material in the water column Dissolved oxygen parameters in the water column Electrical conductivity of the water column Optical backscatter Raw temperature and/or salinity instrument output Sediment resuspension Sound velocity and travel time in the water column Temperature of the water column Temperature variation in the water column Variable fluorescence parameters
    SeaDataNet device categories

    CTD dissolved gas sensors fluorometers optical backscatter sensors water temperature sensor
    SeaVoX Device Catalogue

    Aanderaa 4531 oxygen optode Sea-Bird SBE 37 MicroCAT IMP-CTP-IDO (submersible) CTD sensor WET Labs {Sea-Bird WETLabs} ECO FLNTU combined fluorometer and turbidity sensor WET Labs {Sea-Bird WETLabs} ECO NTU turbidity sensor
    SeaVoX Platform Categories

    land or seafloor


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