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
- ga.gov.au /geodesy/antarc/index.jsp ↗
Geodetic positions and related information, of permanent survey marks on stable rock.
documentation · from NASA CMR
- Download the PCMEGA presentation data.aad.gov.au/aadc/portal/download_file.cfm?file_id=3743 ↗
documentation · from NASA CMR
- data.aad.gov.au /aadc/metadata/citation.cfm?entry_id=AAGN ↗
Citation reference for this metadata record and dataset
documentation · from NASA CMR
- Public information for ASAC project 1159 secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=1159 ↗
project · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214305626-AU_AADC.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214305626-AU_AADC.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Crustal Motion · Not provided
- Inferred from text
- Geology 68%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214305626-AU_AADC | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3705 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (68%) |
| concepts[measured_variable].gcmd:earth-science/solid-earth/gravity-gravitational-field/crustal-motion | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |