@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/cde94d67-ab17-4dde-847a-5b8d42344479> a dcat:Dataset ;
    dct:description """This consolidated dataset consisting of Australian Hydrographic Service (AHS) surveys HI468, HI590, HI621 and HI634 converted to International Terrestrial Reference Frame 2000 (ITRF2000) horizontal datum with Z conversion values for multiple height datums. The data was provided to the AAD by Paul Digney of Jacobs consulting in February 2021.
Included survey datasets:
-   HI468_Davis_Z43_Appraised_Part_ITRF2000
-   HI468_Davis_Z44_Appraised_ITRF2000
-   HI590_Davis_Part_ITRF2000
-   HI621B_Davis_Merged_ITRF2000
-   HI634_Davis_AreaA_ITRF2000
-   HI634_Davis_AreaD_ITRF2000
-   HI634_Davis_AreaF_ITRF2000
-   HI634_Davis_AreaI_ITRF2000
-   HI634_Davis_AreaJ3_ITRF2000
-   HI634_Davis_AreaJ4_ITRF2000
-   HI634_Davis_Rocks_ITRF2000
All data are in horizontal datum ITRF2000 and have been combined into a single ESRI geodatabase feature class titled AHS_Surveys_Davis_ITRF2000.
Attribute data shows quality information, conversion factors (shift in metres) for multiple datums and the MSL orthometric height in the Davis 83 datum:
Column Name  Alias   Meaning
Easting,     Easting,    Easting ITRF2000
Northing,    Northing,   Northing ITRF2000
CD_To_GRS8,  CD_To_GRS80,    LAT (Chart Datum) to the Ellipsoid
GRS80_To_D,  GRS80_To_DAVIS83_MSL,   Ellipsoid to DAVIS Height Datum 83
Z_To_GRS80,  Z_To_GRS80,     Height to the Ellipsoid
Z_To_DAVIS,  Z_To_DAVIS83_MSL,   Local MSL orthometric height (DAVIS Height Datum 83)
Vertical_U,  Vertical_Uncertainty,   How good is the Vertical Position
Horizontal,  Horizontal Uncertainty,     How good is the Horizontal Position
Uncertaint,  Uncertainty Comments,
Depth_Comm,  Depth_Comments,    
Vertical uncertainty is 0.24 to 0.5 m for hydrographic values and 0.25 to 0.5 m for terrestrial values.
See the attached document ‘Metadata_Record_Davis_Final (002).xlsx’ for further details.""" ;
    dct:identifier "cde94d67-ab17-4dde-847a-5b8d42344479" ;
    dct:issued "2025-11-17T02:40:19.721192"^^xsd:dateTime ;
    dct:language "eng" ;
    dct:modified "2025-11-17T02:40:19.721200"^^xsd:dateTime ;
    dct:publisher <https://data.gov.au/organization/0143757a-86ab-43e4-bba6-4a3a2a02b6c4> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((77.8700 -69.6000, 78.1100 -69.6000, 78.1100 -68.4000, 77.8700 -68.4000, 77.8700 -69.6000))"^^gsp:wktLiteral ] ;
    dct:title "Australian Hydrographic Service Surveys at Davis Station - ITRF2000" ;
    dcat:distribution <https://data.gov.au/dataset/cde94d67-ab17-4dde-847a-5b8d42344479/resource/0a01702a-3f75-4c6c-ba2f-a9a1f7451c48>,
        <https://data.gov.au/dataset/cde94d67-ab17-4dde-847a-5b8d42344479/resource/c6ba669d-a492-4ee7-a2a7-ea279a57c6c8>,
        <https://data.gov.au/dataset/cde94d67-ab17-4dde-847a-5b8d42344479/resource/ec108ce4-e240-4338-a3a3-ef6fb25518bc> ;
    dcat:keyword "AMD",
        "AMD/AU",
        "CEOS",
        "CONTINENT > ANTARCTICA > Davis Station",
        "EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY",
        "ECHO SOUNDERS",
        "GEOGRAPHIC REGION > POLAR",
        "OCEAN > SOUTHERN OCEAN",
        "SHIPS" .

<https://data.gov.au/dataset/cde94d67-ab17-4dde-847a-5b8d42344479/resource/0a01702a-3f75-4c6c-ba2f-a9a1f7451c48> a dcat:Distribution ;
    dct:description "Download the dataset." ;
    dct:format "HTML" ;
    dct:issued "2025-11-17T02:40:19.729120"^^xsd:dateTime ;
    dct:modified "2025-11-17T02:40:19.695641"^^xsd:dateTime ;
    dct:title "GET DATA > DIRECT DOWNLOAD" ;
    dcat:accessURL <https://data.aad.gov.au/eds/5234/download> .

<https://data.gov.au/dataset/cde94d67-ab17-4dde-847a-5b8d42344479/resource/c6ba669d-a492-4ee7-a2a7-ea279a57c6c8> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2025-11-17T02:40:19.729128"^^xsd:dateTime ;
    dct:modified "2025-11-17T02:40:19.696189"^^xsd:dateTime ;
    dct:title "Creative Commons by Attribution logo" ;
    dcat:accessURL <https://i.creativecommons.org/l/by/3.0/88x31.png> .

<https://data.gov.au/dataset/cde94d67-ab17-4dde-847a-5b8d42344479/resource/ec108ce4-e240-4338-a3a3-ef6fb25518bc> a dcat:Distribution ;
    dct:description "Citation reference for this metadata record and dataset." ;
    dct:format "HTML" ;
    dct:issued "2025-11-17T02:40:19.729126"^^xsd:dateTime ;
    dct:modified "2025-11-17T02:40:19.696074"^^xsd:dateTime ;
    dct:title "VIEW RELATED INFORMATION" ;
    dcat:accessURL <https://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AHS_Surveys_Davis_ITRF2000> .

<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" .