Datasets

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.

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.

Australian Notice to Mariners

Australian Notices to Mariners Editions are the authority for correcting Australian Navigational Charts and Australian Nautical Publications and are published fortnightly by the Australian Hydrographic Office. Australian Notices to Mariners are numbered from 1 onwards and are published in 26 fortnightly editions each calendar year.

 

Australian Paper Charts

The AHS has been publishing paper nautical charts since 1942. They are relied upon and trusted by Australian and international commercial vessels, recreational The Australian Hydrographic Service (AHS) publishes and updates approximately 450 official paper nautical charts providing coverage of the Australia Charting Area. The AHS releases its paper chart coverage under the 'Aus' series. It includes Australian, Papua New Guinea, Timor Leste and Australian Antarctic Territory waters.

Australian Electronic Navigation Chart (AusENC)

AusENC are official vector Australian Electronic Navigational Charts (ENC) providing coverage of Australian and Papua New Guinea waters.

They are authorised for use in IMO compliant Electronic Chart Display and Information Systems (ECDIS) and can also be used in compatible Electronic Chart Systems (ECS).

 

ENC deliver additional functionality over paper or raster charts when used in an ECDIS or suitable ECS. This additional functionality includes:

Intertidal Extents Model Collection

The Intertidal Extents Model (ITEM v1.0) product is a national scale gridded dataset characterising the spatial extents of the exposed intertidal zone, at intervals of the observed tidal range. The current version utilises all Landsat observations (5, 7, and 8) for Australian coastal regions (excluding off-shore Territories) between 1987 and 2015 (inclusive). The Intertidal Extents Model (ITEM v1.0) consists of three datasets derived from the Landsat NBAR data managed in the Australian Geoscience Data Cube (AGDC) for the period 1987 to 2015.

Water Observations from Space

Water Observations from Space (WOfS) is a web service displaying historical surface water observations derived from satellite imagery for all of Australia from 1987 to present day. WOfS aims is to allow better understanding of where water is usually present; where it is seldom observed; and where inundation of the surface has been occasionally observed by satellite. WOfS displays the detected surface water from the Australia-wide Landsat 5 and Landsat 7 satellite imagery archive.

For each grid cell within the map, WOfS displays:

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