@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.gov.au/dataset/e7d9d7d3-2cd6-411e-82bb-c5bf14c46a18> a dcat:Dataset ;
    dct:description """The Adelaide Reference Surfaces bathymetry survey was acquired for the Australian Hydrographic Office (AHO) during the period 4 Sep 2020 – 16 Sep 2020. This surface was created from a contracted national reference survey in Gulf St Vincent SA, collected for the purpose of calibrating multibeam echosounders.&nbsp;It was conducted for the Australian Hydrographic Office as part of the Hydroscheme Industry Partnership Program, acquired using Kongsberg EM 2040 multibeam echosounder and Kongsberg EA440 singlebeam echosounder, and processed using Caris HIPS &amp; SIPS. Separate grids in 1m resolution are provided for the 2 surveyed sites within this survey area in MSL, LAT and Ellipsoid vertical datum. The dataset was then exported as a 1m resolution, 32 bit floating point GeoTIFF grid of the survey area.

This dataset is not to be used for navigational purposes.""" ;
    dct:identifier "e7d9d7d3-2cd6-411e-82bb-c5bf14c46a18" ;
    dct:issued "2026-01-11T05:17:14.923197"^^xsd:dateTime ;
    dct:language "eng" ;
    dct:modified "2026-01-11T05:17:14.923204"^^xsd:dateTime ;
    dct:publisher <https://data.gov.au/organization/0143757a-86ab-43e4-bba6-4a3a2a02b6c4> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((138.0692 -34.8083, 138.2479 -34.8083, 138.2479 -34.7152, 138.0692 -34.7152, 138.0692 -34.8083))"^^gsp:wktLiteral ] ;
    dct:title "AHO Reference Surfaces Adelaide 1m 2023 (20230008R)" ;
    dcat:distribution <https://data.gov.au/dataset/e7d9d7d3-2cd6-411e-82bb-c5bf14c46a18/resource/5d27046e-5da7-4c70-92b1-70a472ef4fff> ;
    dcat:keyword "AusSeabed",
        "EARTH SCIENCES",
        "Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry",
        "HVC_144641",
        "Multibeam",
        "Oceans",
        "Published_External",
        "Singlebeam",
        "bathymetric grids",
        "bathymetry",
        "marine" .

<https://data.gov.au/dataset/e7d9d7d3-2cd6-411e-82bb-c5bf14c46a18/resource/5d27046e-5da7-4c70-92b1-70a472ef4fff> a dcat:Distribution ;
    dct:description "AHO ReferenceSurface (Adelaide) 2023 1m (zip) [188.2 MB]" ;
    dct:format "ZIP" ;
    dct:issued "2026-01-11T05:17:14.925050"^^xsd:dateTime ;
    dct:modified "2026-01-11T05:17:14.905398"^^xsd:dateTime ;
    dct:title "AHO ReferenceSurface (Adelaide) 2023 1m (zip) [188.2 MB]" ;
    dcat:accessURL <https://files.ausseabed.gov.au/survey/AHO%20ReferenceSurface%20%28Adelaide%29%202023%201m.zip> .

<https://data.gov.au/organization/0143757a-86ab-43e4-bba6-4a3a2a02b6c4> a foaf:Agent ;
    foaf:mbox "info@aodn.org.au" ;
    foaf:name "Australian Ocean Data Network" .