| dbo:abstract |
Vertical Offshore Reference Frames (VORF) is a set of high resolution surfaces which together define a vertical datum for hydrographic surveying and charting in the United Kingdom and Ireland. The following surfaces are included: * Chart Datum (CD) * Lowest Astronomical Tide (LAT) * Mean Sea Level (MSL) * Mean Low Water Springs (MLWS) * Mean High Water Springs (MHWS) * Highest Astronomical Tide (HAT) * Land datums including Ordnance Datums Newlyn, Belfast and Poolbeg All the surfaces are modelled with respect to the terrestrial reference frame used for satellite navigation (GNSS) positioning, ETRS89. Thus VORF directly permits the use of high precision GNSS in hydrographic survey, and also allows the capability of transforming vertical data between the different datums. (en) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/VORF2008LATMSL.jpeg?width=300 |
| dbo:wikiPageExternalLink |
https://confluence.qps.nl/qinsy/8.0/en/how-to-create-a-geoid-or-vorf-model-from-a-text-file-v8-15-and-older-196545118.html https://datahub.admiralty.co.uk/portal/apps/sites/%23/marine-data-portal/pages/seabed-mapping-services https://eiva.freshdesk.com/support/solutions/articles/43000600802-how-to-create-a-vorf-geoid-model-from-an-ascii-file https://www.ucl.ac.uk/civil-environmental-geomatic-engineering/research/groups-centres-and-sections/vertical-offshore-reference-frames-vorf |
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6861 (xsd:nonNegativeInteger) |
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1114609028 (xsd:integer) |
| dbo:wikiPageWikiLink |
dbc:Tides dbc:Vertical_datums dbr:Satellite_navigation dbr:United_Kingdom_Hydrographic_Office dbr:University_College_London dbr:Geoid dbr:Proudman_Oceanographic_Laboratory dbc:Cartography dbc:Nautical_charts dbr:Chart_datum dbr:Technical_University_of_Denmark dbc:Geodetic_datums dbr:Mean_Sea_Level dbr:File:VORF2008LATMSL.jpeg dbr:European_Terrestrial_Reference_System_1989 dbr:Tide_gauge dbr:Vertical_datum dbr:Lowest_Astronomical_Tide dbr:Ordnance_Datum dbr:Satellite_altimetry dbr:Hydrographic_surveying |
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dbt:Reflist dbt:Short_description |
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dbc:Tides dbc:Vertical_datums dbc:Cartography dbc:Nautical_charts dbc:Geodetic_datums |
| rdfs:comment |
Vertical Offshore Reference Frames (VORF) is a set of high resolution surfaces which together define a vertical datum for hydrographic surveying and charting in the United Kingdom and Ireland. The following surfaces are included: * Chart Datum (CD) * Lowest Astronomical Tide (LAT) * Mean Sea Level (MSL) * Mean Low Water Springs (MLWS) * Mean High Water Springs (MHWS) * Highest Astronomical Tide (HAT) * Land datums including Ordnance Datums Newlyn, Belfast and Poolbeg (en) |
| rdfs:label |
Vertical Offshore Reference Frames (en) |
| owl:sameAs |
wikidata:Vertical Offshore Reference Frames https://global.dbpedia.org/id/2gwKc |
| prov:wasDerivedFrom |
wikipedia-en:Vertical_Offshore_Reference_Frames?oldid=1114609028&ns=0 |
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wiki-commons:Special:FilePath/VORF2008LATMSL.jpeg |
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wikipedia-en:Vertical_Offshore_Reference_Frames |
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dbr:VORF |
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dbr:Ordnance_datum dbr:VORF dbr:Vertical_datum dbr:Outline_of_oceanography |
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wikipedia-en:Vertical_Offshore_Reference_Frames |
