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 nameLIDAR_Bathymetryic LIDAR 2006 Galway 14m lat wgs84 Globe DTM
    Discipline
    Parameter groups
    Discovery parameter
    GEMET-INSPIRE themesOceanographic geographical features
    AbstractAll depths are reduced to Lowest Astronomical Tide (LAT). The survey was carried out in 2006 using aircraft using Light Detection and Ranging (LIDAR) technology. This is part of the ongoing INFOMAR Project, Ireland’s national marine mapping programme. The survey was carried out by Tenix LADS Corporation Pty. Ltd using the LADS Mk II Lidar system, and processed using the LADS Mk II Ground System. Sensors onboard the airplane measure the difference between laser returns from the sea surface and seabed, allowing the water depth to be calculated. Lasers used are eye-safe. Water depths from 0 to 70 metres can be surveyed by LIDAR but typically depths of around 15 metres are achieved in Irish coastal waters. Real-time support was provided by the Geological Survey of Ireland, Department of Marine, Communications and Natural Resources who supplied observed tides throughout the survey period from the existing tide gauge at Castletownbere Harbour and Galway Harbour, and GSI installed gauges at Rinville in Galway Bay, Parkmore in Kinvarra Bay and Bantry Harbour in Bantry Bay. In addition GSI staff provided support in the positioning of control points and heighting of benchmarks at all tide gauge locations.Fugro OmniStar Wide Area Differential GPS was used with a continually updated virtual reference position. One local GPS base station was used to provide Kinematic GPS positions. This base station was located on a control point positioned on the roof of the Quality Hotel, Killarney. Temporary control points were also established on the tarmac at Kerry Airport. These points were used to conduct static position checks of all positioning systems. Accuracy of Position. Based on the results of the position checks it is considered that IHO Order-1 position accuracy was achieved. The survey depth accuracy has been assessed theoretically and conforms to IHO Order-1.Please reference the INFOMAR projects when the data is used in publications & presentations. Visit http://www.infomar.ie for more information. All of this data & reports can be downloaded free of charge in a variety of formats from https://jetstream.gsi.ie/iwdds/map.jsp
    Related EDMED datasetINFOMAR Seabed Survey Lidar Surveyed Areas
    Data format
    Data size 73.000 MB
    Data set creation date20171017
    Where?
    Map
    © OpenStreetMap contributors
    GML idms01
    GML objects
    NameDescription
    BoundaryBoundary
    DatumWorld Geodetic System 84
    Measuring area typesurface
    Minimum instrument depth (m)-52.75
    Maximum instrument depth (m)21.61
    Sea regions
    Location qualificationLandward side of the 12 NM boundary
    MSFD areasNorth East Atlantic Ocean
    When?
    Start date20060915
    Start time09:00:00
    End date20061020
    End time18:00:00
    How?
    Instrument/gear category
    Platform type
    Cruise nameLiDAR Galway Bay 2006
    Alternative cruise nameLiDAR_Galway_Bay_2006
    Cruise start date20060915
    Who?
    Data originatorGeological Survey Ireland
    Data custodianGeological Survey Ireland
    How to get data?
    Data DistributorGeological Survey Ireland
    Database referenceGSI’s data can be downloaded free of charge in various formats from https://jetstream.gsi.ie/iwdds/
    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_Vertical2017-10-02Lidar, SBES High Frequency
    QI_Purpose2017-10-02Hydrographic survey or compatible with hydrographic standards
    QI_Horizontal2017-10-02smaller 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 id1222805
    Version0 
    CDI-record initial import date2011-10-10 14:45:02.897
    CDI-record last update2017-10-19 20:55:04.937
    Point of contactGeological Survey Ireland
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