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Vocabulary

BODC parameter semantic model physical entity datum names

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URI http://vocab.nerc.ac.uk/collection/S20/current/
DescriptionControlled vocabulary defining the terms that may be used to describe the reference with respect to which a physical entity (part of the what theme) in the BODC parameter. semantic model is specified.
CreatorBritish Oceanographic Data Centre
Modified2019-10-15
Version Info12
Identifier S20
Register Manager British Oceanographic Data Centre
Register Owner British Oceanographic Data Centre
See Also https://github.com/nvs-vocabs/S20
Members
Identifier PrefLabel Definition Date
S2000024 1 micropascal The reference level is a pressure of 1 micropascal. 2019-10-14
S2000022 1900-01-01T00:00:00Z The time reference is midnight UTC on the 1st January 1900. 2019-03-26
S2000018 1950-01-01T00:00:00Z The time reference is midnight UTC on the 1st January 1950. 2019-03-26
S2000019 1970-01-01T00:00:00Z The time reference is midnight UTC on the 1st January 1970. 2019-03-26
S2000017 Irish Grid Reference System A geographic grid reference system used in Ireland based on 1965 Datum and the Airy Modified Ellipsoid. 2019-02-01
S2000016 OSGB36 The Ordnance Survey Great Britain 1936 datum based on the Airy 1830 ellipsoid. 2019-02-01
S2000002 True North The entity is defined relative to the direction towards the geographic North Pole. 2018-09-07
S2000015 WGS84 The World Geodetic System 1984 datum. 2019-01-22
S2000009 averaged sea level The entity is defined relative to the sea surface elevation averaged over the duration of the observation. 2018-09-27
S2000006 bed surface The entity is defined relative to the surface of the bed of a water body. 2018-09-07
S2000011 ground surface The entity is defined relative to the solid surface of the earth. 2018-09-27
S2000010 instantaneous sea level The entity is defined relative to the sea surface elevation at the time of the observation. 2018-09-27
S2000023 last reading set The reference is the time of the last reading set. 2019-03-26
S2000012 magnetic north The entity is defined relative to the direction indicated by a magnetic needle or compass. 2018-09-28
S2000008 mean sea level The entity is defined relative to the sea surface elevation averaged over a long period of time which approximates to the Earth's geoid. 2018-09-27
S2000013 moving platform The entity is defined relative to the platform from which the measurement is made. 2018-10-01
S2000004 moving platform and True North The entity is defined relative to the moving platform (e.g. a ship) for speed and True North for direction. 2018-09-07
S2000003 moving platform and heading The entity is defined relative to the moving platform (e.g. a ship). 2018-09-07
S2000001 not applicable This semantic element is not required for the parameter being described. 2017-06-15
S2000007 sea level The entity is defined relative to the sea surface elevation averaged over a period long enough to eliminate tidal signals. 2018-09-27
S2000020 start of day 00:00:00 UT The time reference is midnight UTC at the start of the day. 2019-03-26
S2000021 start of dive The reference is the start of the platform dive. 2019-03-26
S2000014 water The measurement is defined relative to the water as in, for example, speed through water. 2018-10-02
S2000005 water surface The entity is defined relative to the surface of a water body. 2018-09-07