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Data · collection · 1999

The Australian Antarctic Geodetic Network

Listed in NASA Earthdata CMR

The Australian Antarctic Geodetic Network (AAGN) consists of geodetic positions (latitudes and longitudes) of permanent survey marks on stable rock.

Description

The positions are computed from a network of older conventional geodetic survey observations (angles and distances) and more recent high precision GPS measurements. All observations have been adjusted in terms of the global coordinate system (the International Terrestrial Reference Frame) which is compatible with WGS84 for most practical applications.

The information held includes: Geodetic positions: Unique station identifier, Station name(s), Station Type (e.g. trig station, bench mark, permanent tracking station), Station coordinates (e.g. latitude and longitude and height), Coordinate datum (e.g. ITRF, WGS84 or astronomical), Coordinate epoch (e.g. 1998.0), Coordinate accuracy, Related Site details: Mark type (e.g. stainless steel pin in rock), Status of mark (e.g. found, disturbed, destroyed), Site description, Allied information (e.g. photographs or sketches).

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Optical levelling connections from permanent GPS reference stations to tide gauges are also available. This work is part of ASAC project 1159 (ASAC_1159). A copy of a presentation detailing geodesy work undertaken as part of PCMEGA is available for download.

Links

Documentation and papers

Catalogue records · 2

Topics

Stated by source
Crustal Motion · Not provided
Inferred from text
Geology 68%
Provenance · 1 source records, 11 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC1214305626-AU_AADC13 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[field].anzsrc:group:3705enrichment · NASA CMRtaxonomy-embedding@1.1.0title+keywords+description (68%)
concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/crustal-motionsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:not-providedsource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
license_textsource · NASA CMRconnector:nasa_cmr@1.0.0
publication_datesource · NASA CMRconnector:nasa_cmr@1.0.0
spatialsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/SpatialExtent
temporalsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/TemporalExtents
titlesource · NASA CMRconnector:nasa_cmr@1.0.0/umm/EntryTitle
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0