This dataset maps the geomorphic habitat environments (facies) for 36 South Australian coastal waterways. The classification system contains 12 easily identifiable and representative environments: Barrier/back-barrier, Bedrock, Central Basin, Channel, Coral, Flood- and Ebb-tide Delta, Fluvial (bay-head) Delta, Intertidal Flats, Mangrove, Rocky Reef, Saltmarsh/Saltflat, Tidal Sand Banks (and Unassigned). These types represent habitats found across all coastal systems in Australia. Most of the 36 coastal waterways have a "Modified" environmental condition (as opposed to "Near Pristine"), according to the National Land and Water Resources Audit definition.

Lithostratigraphy, grain sizes and down-hole logs of Site 1166 on the continental shelf, and Site 1167 on the upper slope, are analyzed to reconstruct glacial processes in eastern Prydz Bay and the development of the Prydz trough-mouth fan. In eastern Prydz Bay upper Pliocene-lower Pleistocene glaciomarine sediments occur interbedded with open-marine muds and grade upward into waterlaid tills and subglacial tills. Lower Pleistocene sediments of the trough-mouth fan consist of coarse-grained debrites interbedded with bottom-current deposits and hemipelagic muds, indicating repeated advances and retreats of the Lambert Glacier-Amery Ice Shelf system with respect to the shelf break. Systematic fluctuations in lithofacies and down-hole logs characterize the upper Pliocene-lower Pleistocene transition at Sites 1166 and 1167 and indicate that an ice stream advanced and retreated within the Prydz Channel until the mid Pleistocene. The record from Site 1167 shows that the grounding line of the Lambert Glacier did not extend to the shelf break after 0.78 Ma. Published ice-rafted debris records in the Southern Ocean show peak abundances in the Pliocene and the early Pleistocene, suggesting a link between the nature of the glacial drainage system as recorded by the trough-mouth fans and increased delivery of ice-rafted debris to the Southern Ocean.

The Valley Networks dataset covers the whole of Christmas Island. It contains low elevation lines that were constructed from the 25K Digital elevation map. The lines were obtained by running a series of ArcView grid commands using the Hydrologic Modeling v1.1 extention. The valley_net.shp contains the following fields: Field Type Precision Decimal---------------------------------------------------Shape FIELD_SHAPELINE 0 9Id FIELD_DECIMAL 0 11Gridcode FIELD_DECIMAL 0 10Length FIELD_DECIMAL 3 16

This dataset has been digitised from the 1:25000 vegetation map of Christmas Island (accompanying Mitchells 1985 report). The vector version was completed on behalf of Parks Australia Christmas Island. Geoscience Australia used ArcInfo to heads-up digitise a scanned version of the map. Once digitised the arcs were built into polygons and the map was attributed based on the Geoscience Australia data dictionary guidelines. All information relating to vegetation boundaries was extracted from the map and incorporated in the table. The fields that were used follow: Alias Type Width Decimal -----------------------------------------------Shape FIELD_SHAPEPOLY 80Ufi FIELD_DECIMAL 6 0 - unique numberArea FIELD_DECIMAL 18 5Perimeter FIELD_DECIMAL 18 5Code FIELD_CHAR 80 0 - Vegetation unit (map symbol)Descript FIELD_CHAR 64 0 - Description of unitCategories FIELD_CHAR 50 0 - vegetation categoriesFeature FIELD_CHAR 12 0 - (GA field)Plotrank FIELD_DECIMAL 1 0 - (GA field)

This document describes a format of the AVNIR-2 (Advanced Bisible Near-Infrared Radiometer) products generaged by the ALOS Data Processing Subsystem.

Geoscience Australia's National Gravity Database contains onshore and offshore data from more than 1,200,000 point gravity observations. These data have been collected from gravity surveys dating back to 1937. This repository of gravity information is a valuable national asset with importance to the mineral and petroleum exploration industries, geodesy and the international scientific community. This May 2003 release contains approximately 390,000 more stations than the 2002 release.

This record describes digital data compilation product, where several individual items are grouped for delivery. Content and number of items included in the compilation package can vary, depending on size of the individual items. The contents are as follows: Catalog # Title 34393 Airborne laser fluorosensor (Mk III) survey reprocessing and interpretation report:1994 Barrow and Dampier Sub-basins,Carnarvon, NW Shelf 34394 Mk II airborne laser fluorosensor survey reprocessing and interpretation report: Timor Sea, Australia 35634 Mk II airborne laser fluorosensor survey reprocessing and interpretation report: Browse Basin, North West Shelf 35635 Mk II airborne laser fluorosensor survey reprocessing and interpretation report: Timor Gap, Timor Sea, Australia 35738 Mk II airborne laser fluorosensor survey reprocessing and interpretation report: Barrow Sub-basin, Carnarvon Basin, North West Shelf 35926 MkII airborne laser fluorosensor survey reprocessing and interpretation report: Arafura Sea, Australia 35929 Airborne laser fluorosensor (Mk III) survey reprocessing and interpretation report: WA-260-P, Timor Sea 35930 Mk II airborne laser fluorosensor survey reprocessing and interpretation report: Bonaparte Basin, Timor Sea

This record describes digital data compilation product, where several individual items are grouped for delivery. Content and number of items included in the compilation package can vary, depending on size of the individual items. The contents are as follows: Catalog # Title 37948 North Queensland geology map 1 M 21266 Hann River general geology 250k 22686 Abingdon Downs 100k 22688 Blackdown 100k 22684 Galloway 100k 22682 Red River 250k 33174 North Queensland stream sediment geochemical data

This dataset maps the geomorphic habitat environments (facies) for 73 Tasmanian coastal waterways. The classification system contains 12 easily identifiable and representative environments: Barrier/back-barrier, Bedrock, Central Basin, Channel, Coral, Flood- and Ebb-tide Delta, Fluvial (bay-head) Delta, Intertidal Flats, Mangrove, Rocky Reef, Saltmarsh/Saltflat, Tidal Sand Banks (and Unassigned). These types represent habitats found across all coastal systems in Australia. The majority of near pristine estuaries in Tasmania are located in the south and west of the State and on Cape Barren Island, according to the Department of Primary Industries, Water and Environment.

The Landsat 7 Picture Mosaic of Australia was produced by the Australian Greenhouse Office (AGO) as part of their National Carbon Accounting System. The mosaic is comprised of 369 individual Landsat satellite scenes acquired between July 1999 and September 2000.