SeaDataNet Common Data Index (CDI)

The selected data set is described below with metadata. Access to the data set itself can be requested via the SeaDataNet portal that gives an overview and access to marine and ocean data sets acquired and managed by European organisations. Go to: https://www.seadatanet.org

Details

    What?
    Data set namealliance high north 2021
    Discipline
    Parameter groups
    Discovery parameter
    GEMET-INSPIRE themesOceanographic geographical features
    AbstractNew hydro-oceanographic data were collected in the Arctic Ocean during HIGN NORTH20 marine geophysical campaign performed in July 2020, in a COVID-19 pandemic period. HIGH NORTH20 was developed as part of the IT-Navy HIGH NORTH program, a Pluriannual Joint Research Program in the Arctic devoted to contribute to oceans knowledge in order to ensure ocean science improving conditions for sustainable development of the Ocean in the aim of United Nations Decade of Ocean Science for Sustainable development and the GEBCO - SEABED 2030 project. In order to contribute in exploration and high-resolution seabed mapping new data was collected using a multibeam echosounder (EM 302 - 30 kHz). The particular sea ice environmental condition with open-sea allowed to survey and mapping the Molloy Hole, the deepest sector of the Arctic Ocean, a key area in the global geodynamics and oceanographic context. A 3D model of the Molloy Hole (804 km2) and the detection of the deepest seafloor (5567m - 79° 08.9’ N 002° 47.0’ E) was obtained with a 10x10m grid in compliance to the IHO standards.
    Data format
    Data size 105.000 MB
    Data set creation date20250625
    Where?
    Map
    © OpenStreetMap contributors
    GML idms01
    GML objects
    NameDescription
    Polygon 1Polygon 1
    Polygon 10Polygon 10
    Polygon 11Polygon 11
    Polygon 2Polygon 2
    Polygon 3Polygon 3
    Polygon 4Polygon 4
    Polygon 5Polygon 5
    Polygon 6Polygon 6
    Polygon 7Polygon 7
    Polygon 8Polygon 8
    Polygon 9Polygon 9
    DatumWorld Geodetic System 84
    Measuring area typesurface
    Depth referencemean sea level
    Minimum instrument depth (m)-83.9
    Maximum instrument depth (m)-2932.87
    Sea regions
    Location qualificationBoth (Landward + beyond the 12 NM boundary)
    Ices areas
    • Barents Sea
    • Norwegian Sea
    MSFD areasNorth East Atlantic Ocean
    Ospar areasArctic Waters
    When?
    Start date20210610
    Start time00:00:00
    End date20210711
    End time00:00:00
    Temporal resolution1
    Temporal resolutionMinutes
    How?
    Instrument/gear category
    Device type
    Horizontal resolution250
    Horizontal resolutionMetres
    Vertical resolution0.1
    Vertical resolutionMetres
    Platform type
    Cruise nameHigh North 2021
    Alternative cruise nameHN21
    Cruise start date20210610
    Station nameRV Alliance
    Alternative station nameIALL
    Station start date19860709
    Who?
    Data originatorItalian Hydrographic Institute
    Data custodianStockholm University, Department of Geological Sciences
    How to get data?
    Data DistributorStockholm University, Department of Geological Sciences
    Database referenceStockholm University Bathymetry Data Repository
    Access/ordering of dataweb data access with registration
    Access restriction
    Other info
    Publicationshttps://www.fiskeridir.no/English/Coastal-management/Marine-scientific-research/Cruises-2021/_/attachment/download/70e176cb-9b15-4ebf-8d0d-a07396c1ee7c:6194b0236dab3038e3853c304686d58ef40fdec9/28012021.pdf
    Quality info
    NameDateComment
    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 metadata2008-12-04See the referenced specification
    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 services2010-12-08See the referenced specification
    QI_Age2025-06-253
    QI_Vertical2025-06-25MBES high frequency (larger than 100kHz)
    QI_Purpose2025-06-25Bathymetric/morphologic survey
    QI_Horizontal2025-06-25smaller than 20m
    LineageThe data centres apply standard data quality control procedures on all data that the centres manage. Ask the data centre for details.
    CDI-metadata
    CDI-record id3846077
    Version0 
    CDI-record initial import date2025-06-27 14:57:52.113
    CDI-record last update2025-06-27 14:57:55.807
    Point of contactStockholm University, Department of Geological Sciences
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