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Altimetry-drived Antarctic Circumpolar Current fronts

An up-to-date map of the Antarctic Circumpolar Current (ACC) fronts is constructed from the latest version of mean dynamic topography from satellite altimetry (Park et al., 2019, Observations of the Antarctic Circumpolar Current over the Udintsev Fracture Zone, the narrowest choke point in the Southern Ocean, JGR-Oceans, in review). These are derived from the 1/8°-resolution Mean Dynamic Topography (MDT) of Centre National d’Etudes Spatiales-Collect Localisation Satellites 2018 (CNES-CLS18) for the 1993-2012 reference period [(Rio)-[ https://motu.aviso.altimetry.fr/motu-web/Motu] et al., The new CNES-CLS18 Mean Dynamic Topography solution, in preparation]. The narrowest ACC width in the Udintsev Fracture Zone (UFZ), with the strongest concentration of the three major ACC fronts within a limited distance as short as 170 km, about 40% narrower than that at Drake Passage. At 144°W, at the entrance of the UFZ, which lies between the Pacific-Antarctic Ridge (PAR) and its eastwardly-offset segment (offset PAR segment), there is a triple confluence of the Subantarctic Front (SAF), Polar Front (PF), and Southern ACC Front. Downstream of this longitude, the SAF progressively meanders northward over the relatively shallow offset PAR segment before channeling through the Eltanin Fracture Zone, thus diverging from the PF which proceeds through the UFZ.

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)
2019-04-01
Date (Revision)
2019-11-12
Date (Publication)
2021-12-16
Date (Publication)
Citation identifier
a53ad03f-3539-5393-3938-000000059800
Code
DOI:10.17882/59800
Other citation details

Park Young-Hyang, Durand Isabelle (2019). Altimetry-drived Antarctic Circumpolar Current fronts. SEANOE. https://doi.org/10.17882/59800 In addition to properly cite this dataset, it would be appreciated that the following work(s) be cited too, when using this dataset in a publication : Park Y.-H., Park T., Kim T.-W., Lee S.-H., Hong C.-S., Lee J.-H., Rio M.-H., Pujol M.-I., Ballarotta M., Durand I., Provost C. (2019). Observations of the Antarctic Circumpolar Current over the Udintsev Fracture Zone, the narrowest choke point in the Southern Ocean. Journal of Geophysical Research: Oceans, -. https://doi.org/10.1029/2019JC015024

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
  • Southern Ocean
  • South Atlantic Ocean
  • Indian Ocean
  • South Pacific Ocean
  • Antarctic freshwater bodies
SeaDataNet Agreed Parameter Groups
  • Currents
SeaDataNet Parameter Discovery Vocabulary
  • Horizontal velocity of the water column (currents)
SeaVoX Platform Categories
  • satellite
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
    1993-01-01
    End date
    2019-12-31
    N
    S
    E
    W
    thumbnail




    Supplemental Information

    https://www.nature.com/articles/s43247-020-00026-1

    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/LMmiiw87OpQivHv

    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|



    An up-to-date map of the Antarctic Circumpolar Current (ACC) fronts is constructed from the latest version of mean dynamic topography from satellite altimetry (Park et al., 2019, Observations of the Antarctic Circumpolar Current over the Udintsev Fracture Zone, the narrowest choke point in the Southern Ocean, JGR-Oceans, in review). These are derived from the 1/8°-resolution Mean Dynamic Topography (MDT) of Centre National d’Etudes Spatiales-Collect Localisation Satellites 2018 (CNES-CLS18) for the 1993-2012 reference period [Rio et al., The new CNES-CLS18 Mean Dynamic Topography solution, in preparation]. The narrowest ACC width in the Udintsev Fracture Zone (UFZ), with the strongest concentration of the three major ACC fronts within a limited distance as short as 170 km, about 40% narrower than that at Drake Passage. At 144°W, at the entrance of the UFZ, which lies between the Pacific-Antarctic Ridge (PAR) and its eastwardly-offset segment (offset PAR segment), there is a triple confluence of the Subantarctic Front (SAF), Polar Front (PF), and Southern ACC Front. Downstream of this longitude, the SAF progressively meanders northward over the relatively shallow offset PAR segment before channeling through the Eltanin Fracture Zone, thus diverging from the PF which proceeds through the UFZ.

    Metadata

    File identifier
    a53ad03f-3539-5393-3938-000000059800 XML
    Metadata language
    English
    Character set
    UTF8
    Hierarchy level
    Dataset
    Date stamp
    2025-05-09T00:00:00
    Metadata standard name

    ISO 19115:2003/19139

    Metadata standard version

    1.0

    Metadata author
    Organisation name Individual name Electronic mail address Role
    Museum National d'Histoire Naturelle, Systematic and evolution department 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
    SeaDataNet Parameter Discovery Vocabulary

    Horizontal velocity of the water column (currents)
    SeaVoX Platform Categories

    satellite


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