A division of HR Wallingford

HydroSpatial One

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HydroSpatial One

HydroSpatial One is the original ‘off-the-shelf’ authoritative digital marine mapping system. HydroSpatial One provides reference information comparable with land mapping and is designed for easy access and cost-effective use in desktop and WebGIS.

Coverage includes eastern Atlantic, Irish Sea, North Sea, English Channel, Channel Islands. Click here to download HydroSpatial One coverage as KMZ for GoogleEarth.

This product consists of six themes which can be purchased individually, or packaged with others. The product is supplied with a pre-generated and symbolised workspace (.mxd). The themes are: 

HydroSpatial One is available through our sales team. Sample data is also available free of charge for an area around Milford Haven, South Wales, United Kingdom.

Technical specifications

  • Spatial coverage

    Eastern Atlantic, Irish Sea, North Sea, English Channel and Channel Islands (including the extent of the UK and Ireland’s Continental Shelf).

  • Scale

    Scales ranging from 1:2500 to 1:1,500,000
    Gridded Bathymetry: 1-arc second (30m)

  • Supply formats

    ESRI (.shp)
    ESRI Personal Geodatabase (.pdg)
    ESRI File Geodatabase (.gdb)
    MapInfo (.tab)

    ESRI ASCII; binary

    Non-standard formats available on request.

  • Supply extents

    Tiles of 1/2 degree x 1/2 degree

  • Coordinate Reference System

    Geodetic WGS84 (urn:ogc:def:crs:EPSG::4326)

    Chart Datum (CD) – representing either Lowest Astronomical Tide (LAT); or Mean Sea Level (MSL).

  • Input/source data

    Charted content

    Captured and Managed to IHO S-57

    Source data layers supplied by UKHO; CCW; NIEA; NE; SNH; TCE; UKDEAL; BGS; BODC; JNCC

  • Update frequency