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Frontal surveys during Calypso: SADCP, UCTD, and SOLO-II profiling floats

This is the third cruise for the US Office of Naval Research’s Coherent Lagrangian Pathways from the Surface Ocean to Interior (Calypso) project.  The program is motivated by the understanding that the vertical movement of water from the surface to depth across the base of the mixed layer has implications for the transport of properties, gases, biogeochemistry, and the fate of drifting particles/objects. However, vertical velocities are weak (about a thousand times smaller than horizontal velocities) and difficult to detect. To represent these motions we need to answer the following questions: (1) How are water and properties from the surface boundary layer exported to depth?  (2) What coherent pathways act as conduits for exchange? (3) What dynamics shapes these pathways? (4) What are the Lagrangian trajectories? (5) What are the time and space scales of subduction? (6) Where does the water end up?  (7) Can we predict these pathways in 3 dimensions and what data are needed to aid or constrain predictive models?  Previous work has established the theoretical basis for predicting coherent Lagrangian structures in the ocean. Confirmation of the predictive theory has only been accomplished in the horizontal dimension and the observational study and confirmation of predictive theories for 3D plus time have not yet been demonstrated. Calypso aims to: (1) Establish an understanding and predictive capability of the three-dimensional coherent pathways by which water carrying tracers and drifting objects is transported from the surface ocean to depths below the mixed layer. (2) Design and implement an observational study to test the theories, hypothesis, and predictions of the 3-D, time-evolving Lagrangian pathways. Due to the need to sample across a range of scales, we have set up this two-ship study with numerous autonomous and Lagrangian platforms.  Eurofleets+ helped the observational program succeed via the award of ship time on R/V Pelagia.  During the cruise, most of the operations from R/V Pelagia focussed on repeat surveys at a front and a cyclonic eddy to the NE of the front with a variety of ship-based measurements and autonomous platforms.  Two-ship operations combined repeat small-scale surveys by R/V Pelagia , which were embedded within larger scale surveys by R/V Pourquois Pas.  

Important Note: This submission has been initially submitted to SEA

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

The metadata elements have been further processed (refined) in EMODnet

Ingestion Service in order to conform with the Data Submission Service

specifications.

Simple

Date (Creation)
2022-01-01
Date (Revision)
2024-06-27
Date (Publication)
2024-11-16
Date (Publication)
Citation identifier
a53ad03f-3930-9303-3031-000000090114
Code
DOI:10.17882/90114
Other citation details

Johnston Shaun, Calafat Noemí, Casas Benjamín, Cutolo Eugenio, Falcieri Francesco, Lizarán Irene, Pascual Ananda, Reynard Nick, Tintoré Joaquín (2022). Frontal surveys during Calypso: SADCP, UCTD, and SOLO-II profiling floats. SEANOE. https://doi.org/10.17882/90114

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
  • Oceanographic geographical features
SeaVoX salt and fresh water body gazetteer
  • North Atlantic Ocean
  • Mediterranean Region
  • Mediterranean Sea
  • Mediterranean Sea, Western Basin
  • Balearic Sea
  • Atlantic Ocean
  • European mainland
  • Northeast Atlantic Ocean (40W)
SeaDataNet Agreed Parameter Groups
  • Water column temperature and salinity
  • Currents
SeaDataNet device categories
  • current profilers
  • CTD
  • CTD undulators
  • water pressure sensors
SeaVoX Device Catalogue
  • Teledyne RDI Ocean Surveyor 75 kHz vessel-mounted ADCP
  • Teledyne Oceanscience underway CTD
SeaDataNet Parameter Discovery Vocabulary
  • Vertical velocity of the water column (currents)
  • Salinity of the water column
  • Horizontal velocity of the water column (currents)
  • Temperature of the water column
SeaVoX Platform Categories
  • research vessel
MEDIN data format categories
  • Network Common Data Form
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
    1900-01-01
    End date
    1900-01-01
    N
    S
    E
    W
    thumbnail




    Unique resource identifier
    WGS 1984

    Spatial representation info

    No information provided.
    Distribution format
    Name Version
    Network Common Data Form

    1

    OnLine resource
    Protocol Linkage Name

    WWW:DOWNLOAD-1.0-http--download

    https://cloud.emodnet-ingestion.eu/index.php/s/Y1nAcbT7U2By1Bq

    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

    Processed data|This is the third cruise for the US Office of Naval Research’s Coherent Lagrangian Pathways from the Surface Ocean to Interior (Calypso) project. The program is motivated by the understanding that the vertical movement of water from the surface to depth across the base of the mixed layer has implications for the transport of properties, gases, biogeochemistry, and the fate of drifting particles/objects. However, vertical velocities are weak (about a thousand times smaller than horizontal velocities) and difficult to detect. To represent these motions we need to answer the following questions: (1) How are water and properties from the surface boundary layer exported to depth? (2) What coherent pathways act as conduits for exchange? (3) What dynamics shapes these pathways? (4) What are the Lagrangian trajectories? (5) What are the time and space scales of subduction? (6) Where does the water end up? (7) Can we predict these pathways in 3 dimensions and what data are needed to aid or constrain predictive models? Previous work has established the theoretical basis for predicting coherent Lagrangian structures in the ocean. Confirmation of the predictive theory has only been accomplished in the horizontal dimension and the observational study and confirmation of predictive theories for 3D plus time have not yet been demonstrated.



    Calypso aims to: (1) Establish an understanding and predictive capability of the three-dimensional coherent pathways by which water carrying tracers and drifting objects is transported from the surface ocean to depths below the mixed layer. (2) Design and implement an observational study to test the theories, hypothesis, and predictions of the 3-D, time-evolving Lagrangian pathways.



    Due to the need to sample across a range of scales, we have set up this two-ship study with numerous autonomous and Lagrangian platforms. Eurofleets+ helped the observational program succeed via the award of ship time on R/V Pelagia. During the cruise, most of the operations from R/V Pelagia focussed on repeat surveys at a front and a cyclonic eddy to the NE of the front with a variety of ship-based measurements and autonomous platforms. Two-ship operations combined repeat small-scale surveys by R/V Pelagia , which were embedded within larger scale surveys by R/V Pourquois Pas.

    Metadata

    File identifier
    a53ad03f-3930-9303-3031-000000090114 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
    Scripps Institution of Oceanography

    scrippsnews@ucsd.edu

    Point of contact
     
     

    Overviews

    Spatial extent

    thumbnail

    Keywords

    GEMET - INSPIRE themes, version 1.0

    Oceanographic geographical features
    MEDIN data format categories

    Network Common Data Form
    SeaDataNet Agreed Parameter Groups

    Currents Water column temperature and salinity
    SeaDataNet Parameter Discovery Vocabulary

    Horizontal velocity of the water column (currents) Salinity of the water column Temperature of the water column Vertical velocity of the water column (currents)
    SeaDataNet device categories

    CTD CTD undulators current profilers water pressure sensors
    SeaVoX Device Catalogue

    Teledyne Oceanscience underway CTD Teledyne RDI Ocean Surveyor 75 kHz vessel-mounted ADCP
    SeaVoX Platform Categories

    research vessel


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