Commonwealth

Regulation 13 Certificates

Regulation 13 Certificates are a legal document which display a station coordinate and the uncertainty of that coordinate. The certificates are generally requested by Continuously Operating Reference Stations (CORS) operators as a means of providing their users with an accurate connection to the Australian Datum - the Geocentric Datum of Australia 1994 (GDA94). Geoscience Australia is appointed as a legal metrology authority under the National Measurement Act, 1960, to provide this legal chain of traceability.

Station Coordinates and Maps

Geoscience Australia routinely computes the station coordinates of sites within the Australian Regional GNSS (Global Navigation Satellite System) Network (ARGN), South Pacific Regional GNSS Network (SPRGN), AuScope Network and the Asia-Pacific Reference Frame (APREF). Weekly station coordinates from these sites can be found on the Geoscience Australia anonymous FTP server in SINEX and PDF format along with a summary file. These weekly solutions are based on a combination of the 7 daily solutions and are aligned to the IGS08 reference frame which is the IGS realization of ITRF2008.

Geodetic Gravity

Geoscience Australia and the Australian National University jointly undertake the geodetic gravity component of the AuScope program, aiming at improving the understanding of the temporal gravity changes across the Australian continent. The geodetic gravity program has two separate outcomes, they are to: use absolute gravimetry as an independent measure for vertical movements of the crust and/or other long-term gravity signals of interest.

Very Long Baseline Interferometry

Geodetic Very Long Baseline Interferometry (VLBI) observations provided the first direct confirmation of tectonic plate motion at the end of the 1980s. Now VLBI observations measure the motions of stations with accuracy better than 1mm/year together with other space geodetic techniques such as Global Positioning System (GPS) and Satellite Laser Ranging (SLR) analysis. VLBI observations to stable distant quasars are an important component for the establishment of a reference system of coordinates in the sky - defining the Celestial Reference Frame.

Satellite Laser Ranging

Satellite Laser Ranging (SLR) as its name suggests ranges (or measures distance) to Earth orbiting satellites using a powerful laser to detect a satellite's variation from its predicted orbit. It is uniquely suited to accurately determining the variation of the Earth's centre of mass, along with the orbit parameters of satellites orbiting the Earth. Data from a global network of SLR stations are used to estimate the orbital parameters of satellites which revolve around the Earth's centre of mass.

Global Navigation Satellite System

Global Navigation Satellite System (GNSS) is a generic term used to describe the US Global Positioning System (GPS) and other constellations such as the Russian Global Navigation Satellite System (GLONASS) that provide geospatial positioning across the Earth. Over the past two decades the GNSS has proved to be a very accurate and efficient method of measuring the tectonic motion of the continents.

National Depth Data

This is a National place-holder for bathymetric data from input sources to an output source. It shows a national coverage of information, but this information is not necessarily aggregated together into a national coverage.

Department of Defence

FSDF Datasets we are custodians of

We are not currently managing any National FSDF datasets.

Datasets we are custodians of

We are not currently managing any datasets.

Program tasks

We are currently not undertaking any Tasks.

Use cases

We are currently not part of any Use Cases.

Working groups

We are currently not part of any Working Groups.

Related mandates

We are currently not associated with and Mandates.

Maritime Gazetteer of Australian (MGA)

The Maritime Gazetteer of Australia (MGA) is a searchable database containing all the place names used in Australia's official navigational charts.

Positions relating to a feature name are displayed to the nearest minute of latitude and longitude together with a limited number of other attributes, such as all the charts that include each name. The MGA does not provide the gazetted geographic position of features.

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