AMAZOMIX cruise - Physical datasets

Physical data associated with the AMAZOMIX cruise. The Amazon shelf encompasses a variety of physical processes, such as fluvial inputs, coastal currents, mesoscale, filaments, tides, internal waves and upwelling, influencing nutrient concentrations, chlorophyll and suspended matter. They also affect energy, salt and heat balances; parameters that condition physical/biogeochemical interactions and ecosystem functioning, from bacteria to plankton to fish resources. In particular, internal tidal waves are very energetic in this region. They impact biogeochemical cycles via the vertical mixture induced by their dissipation or vertical movements induced by their propagation. They thus allow a significant input of nutriments into the euphotic layer enhancing primary production, as observed on the surface from watercolour data. Internal tidal waves could thus influence the biological pump and the carbon cycle. In addition, overall marine biodiversity of the region, from bacteria to fish is not well described. The connectivity of species in the tropical Atlantic is also still an open question. The Caribbean region is by far more bio-diverse than the Brazilian one. One of the hypotheses is that the Amazon plume, which can extend up to 3,000 km off the mouth, would constitute a barrier for some organisms. The Amazon Shelf is thus an ideal experimental laboratory to study the impact of physical processes on the structure and function of neritic and oceanic marine ecosystems. In this context, the objective of the multidisciplinary AMAZOMIX survey was to study the impact of the Amazon River plume, internal tides and associated turbulent mixing, on marine ecosystem in contrasting regions off the Amazon shelf. For that purpose, the multidisciplinary AMAZOMIX project brings together physicists, biogeochemists, bioopticians and biologists. The sampling strategy consists in the simultaneous acquisition of a comprehensive set of environmental and biological compartments, including micro-organisms (bacteria, phyto and zooplankton) and higher trophic levels (micronekton, demersal and pelagic fish). AMAZOMIX is the first campaign to develop this multi-disciplinary approach off the Amazon shelf. In situ results will be analysed in interaction with digital tools and data, modelling (1/36°, with and without tides, 1/12° coupled) and satellite data analyses. This dataset contains the AMAZOMIX 2021 qualified measurements of  - The hydrographic CTD-02 (netCDF and csv text files) - Ship Acoustic Doppler Current Profilers (OS 75 kHz, netCDF and csv text files) - Lowered Acoustic Doppler Current Profilers (WH300 downlooking and WH300 uplooking, netCDF and csv text files) - Thermosalinometer (netCDF and csv text files) - Vertical microstructure profile (VMP-250, binary file)  

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Date (Creation)
2021-01-01
Date (Revision)
2023-12-20
Date (Publication)
2025-04-07
Date (Publication)
Citation identifier
a53ad03f-3937-9373-3732-000000097235
Code
DOI:10.17882/97235
Other citation details

Rousselot Pierre, Cervelli Evan, Fouilland Eric, Koch-Larrouy Ariane, Lebourges-Dhaussy Anne, Meriaux Xavier, Le Ridant Arnaud, Roubaud Fabrice, Roudaut Gildas, Ternon Jean-Francois, Vantrepotte Vincent, Bertrand Arnaud (2021). AMAZOMIX cruise - Physical datasets. SEANOE. https://doi.org/10.17882/97235

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
SeaVoX salt and fresh water body gazetteer
SeaDataNet Agreed Parameter Groups
SeaDataNet device categories
SeaDataNet Parameter Discovery Vocabulary
CRUISE SUMMARY REPORT INVENTORY (CSR)
SeaVoX Platform Categories
MEDIN data format categories
Keywords
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    CC-BY 4.0
    Character set
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    Topic category
    • Oceans
    Begin date
    2021-08-28
    End date
    2021-10-08
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    E
    W
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    Unique resource identifier
    WGS 1984

    Spatial representation info

    No information provided.
    Distribution format
    Name Version
    Delimited

    1
    Network Common Data Form

    1
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    WWW:DOWNLOAD-1.0-http--download

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

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    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
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    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
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    Processed data

    Metadata

    File identifier
    a53ad03f-3937-9373-3732-000000097235 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
    IRD, Instrumentation, Analytical Means, Observatories in Geophysics and Oceanography (IMAGO) Point of contact
     
     

    Overviews

    Spatial extent

    thumbnail

    Keywords

    GEMET - INSPIRE themes, version 1.0

    Oceanographic geographical features
    MEDIN data format categories

    Delimited Network Common Data Form
    SeaDataNet Agreed Parameter Groups

    Currents Dissolved gases Optical properties Pigments Water column temperature and salinity
    SeaDataNet Parameter Discovery Vocabulary

    Chlorophyll pigment concentrations in water bodies Date and time Dissolved oxygen parameters in the water column Horizontal velocity of the water column (currents) Salinity of the water column Temperature of the water column Transmittance and attenuance of the water column Vertical spatial coordinates Visible waveband radiance and irradiance measurements in the water column
    SeaDataNet device categories

    CTD current profilers lowered current profilers thermosalinographs
    SeaVoX Platform Categories

    research vessel


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