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 nameRV Keary Bathymetry KRY22_02 Galway 14m WGS84 Globe DTM
    Discipline
    Parameter groups
    Discovery parameter
    GEMET-INSPIRE themesOceanographic geographical features
    AbstractDescription of measurements/samples, purpose for which they were collected, and the platforms/instrumentation and methods in collection KRY22_02 Slyne Head Galway 14m Globe DTM WGS 1984 projection Lowest Astronomical Tide (LAT). The GSI has been permitted to utilise the UKHO VORF (Vertical Offshore Reference Frame) sea surface model. This model allows the use of ‘GPS tides’ and the GSI has gridded this model to a 1km resolution around Ireland to 15km offshore for reducing all soundings to Lowest Astronomical Tide - LAT (VORF). By utilising ‘GPS tides’ there is no requirement to adjust for draft or squat as the water level is modelled over the seabed as measured to the WGS84 ellipsoid. This area was surveyed as part of the ongoing INFOMAR project (formerly Irish National Seabed Survey), a joint seabed mapping project between the Geological Survey Ireland and the Marine Institute. Survey work was conducted to standards and recommendations set out by INFOMAR, the International Hydrographic Organisation (IHO), the United Kingdom Hydrographic Office (UKHO) and the UK’s Maritime and Coastguard Agency (MCA). Please note the following: Data acquired prior to March 2011 were levelled to Lowest Astronomical Tide (LAT) using shifts derived from Proudman Oceanographic tidal model. Tidal height was derived using a network of offshore and onshore tide gauges. As such data are on average 0.54m deeper than the more recent UKHO Vertical Offshore Reference Frame (VORF) levelled data. We are currently updating the older datasets. Statement on the level of data processed and quality control, limitations on reliability INFOMAR bathymetry products generated to meet International Hydrographic Organization (IHO) standards to ensure gridded data positional accuracy in the horizontal (XY) and vertical (Z) frame. Arrangement of data Data has been processed and arranged into a GLOBE DTM grid using XYZ data. Spatial and temporal resolution of data within the dataset Image resolution is a 14m DTM grid. Length of time series Image created from data collected between 2022-09-01 and 2022-10-31. Amount of data expressed in number of stations, sites, observations, cores, months of recordings, miles of track or other units as appropriate Bathymetry image meets GLOBE DTM standard. Data provided under Creative Commons licence access and use conditions. Users of this data should provide the following attribution statement "Contains Irish Public Sector Data (Geological Survey Ireland; Marine Institute) licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence"
    Related EDMED datasetINFOMAR (Seabed Survey) Bathymetry around Ireland
    Data format
    Data size 116.000 MB
    Data set creation date20230915
    Where?
    Map
    © OpenStreetMap contributors
    GML idms01
    GML objects
    NameDescription
    SlyneHeadSlyne Head
    DatumWorld Geodetic System 84
    Measuring area typesurface
    Depth referenceLowest Astronomical Tide
    Minimum instrument depth (m)-119.55
    Maximum instrument depth (m)-35.66
    Sea regions
    Location qualificationLandward side of the 12 NM boundary
    Ices areasCeltic Seas
    MSFD areasNorth East Atlantic Ocean
    Ospar areasCeltic Seas
    When?
    Start date20220901
    Start time09:00:00
    End date20221031
    End time18:00:00
    Temporal resolution1
    Temporal resolutionMinutes
    How?
    Instrument/gear category
    Horizontal resolution14
    Horizontal resolutionMetres
    Vertical resolution14
    Vertical resolutionMetres
    Platform type
    Cruise nameKRY22_02
    Alternative cruise nameKRY22_02
    Cruise start date20220901
    Station nameSlyneHead
    Alternative station nameSH
    Station start date20220901
    Who?
    Data originatorGeological Survey Ireland
    Data custodianGeological Survey Ireland
    How to get data?
    Data DistributorGeological Survey Ireland
    Database referenceBY_KRY22_02_Galway_14m_WGS84.dtm.nc
    Access/ordering of dataweb data access with registration
    Access restriction
    Other info
    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_Horizontal2021-10-12smaller than 20m
    QI_Vertical2021-10-12MBES high frequency (larger than 100kHz)
    QI_Purpose2021-10-12Hydrographic survey or compatible with hydrographic standards
    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 id3559569
    Version0 
    CDI-record initial import date2023-09-18 22:17:26.970
    CDI-record last update2023-09-18 22:17:29.477
    Point of contactGeological Survey Ireland
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