Geoscience Australia has the primary role in the delineation of Australia's domestic and international maritime limits and boundaries. An output of this activity is the development of the Australian Maritime Boundaries (AMB) data. AMB is a GIS data product, replacing AMBIS 2006, providing access to the data for Australia's maritime zones. AMB is a digital representation of Australia's limits and boundaries as established under the Seas and Submerged Lands Act 1973 and associated proclamations. The data also include a representation of the limits by which the scheduled and offshore areas of each of the States and of the Northern Territory are determined under the Offshore Petroleum and Greenhouse Gas Storage Act 2006 (OPGGSA). In the event of an inconsistency between AMB data and the limits under any legislation, the latter prevails. The data have been published by Geoscience Australia in consultation with other relevant Commonwealth Government agencies including the Attorney-General's Department, the Department of Foreign Affairs and Trade and the Australian Hydrographic Office. AMB data comprise the territorial straight baselines and the outer limits of each zone, together with maritime boundaries determined by treaties between Australia and neighbouring countries. All data coordinates are supplied in the GDA94 datum. The data reflects the location of the coastline within the constraints of available source material at the time of production. AMB Data can also be viewed on-line via AMSIS (http://www.ga.gov.au/marine/jurisdiction/amsis.html). Product Specifications Coverage: Australia including all external territories Currency: May 2014. Coordinates: Geographical Datum: GDA94 (functionally equivalent to WGS84). Format: ESRI Geodatabase and REST web service - free online.

2014 Open Day Promotional Material

The mechanism and uplift history of Australia's southeastern highlands has long been debated. End member models account for the topography as a down warped relict of an ancient plateau or a consequence of uplift associated with either rifting along the eastern margin or Cenozoic volcanism. All of these models assume present-day elevation is a consequence of isostatic equilibrium at the base of the crust. An analysis of the relationship between gravity and topography in the spectral domain shows the admittance at wavelengths longer than those controlled by flexure is ~50 mgal km-1. This value is characteristic of dynamic support arising from thermal anomalies beneath the plate predicted by multiple mantle convection simulations and observed over Africa, Antarctic and the Pacific Ocean. Division of long-wavelength filtered gravity by this admittance value suggests the southeastern highlands are supported by 400-900 m. The morphological expressions of this support are the Great Escarpment and major knick zones on rivers such as the Snowy. The temporal evolution of this support can be determined by exploiting longitudinal river profiles since their shape is controlled by uplift and modulated by erosion. By applying the well-known detachment limited stream power law to model erosion uplift histories can be extracted provided erosional parameters can be constrained. By calibrating the erosional parameters using incision rates along the Tumut River and Tumbarumba Creek as well as palaeoelevations of basalt flows the uplift history of the southeastern highlands can ascertained directly from the landscape. Our results show uplift of the southeastern highlands occurred in two phases associated with Cretaceous age rifting resulting in Tasman Sea floor spreading and Cenozoic volcanism. The latter event accounts for the observed amplitude of present-day dynamic topography thereby suggesting Cenozoic uplift occurred from an unperturbed isotactic elevation. Since Cretaceous rifting along the southeastern margin occurred over a cool mantle given the oldest oceanic floor is thinner than the global average it is unlikely that rift related uplift is a consequence of mafic underplating. The most likely driver for this earlier phase of uplift is emergence of eastern Australia from a dynamically drawdown position which has been inferred to explain the widespread mid-Cretaceous marine inundation of Eastern Australia. Therefore it is likely that both uplift events are controlled by changes in the thermal state of the mantle as opposed to changes in crustal thickness and density. This history of vertical motions is consistent with long-term river incision rates, basin sequence stratigraphy and thermochronological studies.

PLEASE NOTE: These data have been updated. See Related Links for new data. Geodatabase of the Commonwealth Seas and Submerged Lands Act 1973 - An Act relating to Sovereignty in respect of certain Waters of the Sea and in respect of the Airspace over, and the Sea bed and Subsoil beneath, those Waters and to Sovereign Rights in respect of the Continental Shelf and the Exclusive Economic Zone and to certain rights of control in respect of the Contiguous Zone.

Tsunami inundation models provide fundamental information about coastal areas that may be inundated in the event of a tsunami. This information has relevance for disaster management activities, including evacuation planning, impact and risk assessment, and coastal engineering. A basic input to tsunami inundation models is a digital elevation model-that is, a model of the shape of the onshore environment. Onshore DEMs vary widely in resolution, accuracy, availability, and cost. Griffin et al. (2012) assessed how the accuracy and resolution of DEMs translate into uncertainties in estimates of tsunami inundation zones. The results showed that simply using the 'best available' elevation data, such as the freely available global SRTM elevation model, without considering data accuracy can lead to dangerously misleading results.

This mouse pad was created by the Mineral Exploration Promotion section as an informative give-away for domestic and international conferences. The mouse pad displays an abbreviated periodic table of the elements with those elements that Australia produces, has known resources of and explores for highlighted in different colours.

Update on Australia's oil and gas activities with a focus on recent exploration successes and promotion of open offshore acreage

GA record by Geoscience Australia relating to the research findings for the F.I.R.E- D.S.T project - specifically relating to Case Study Two (Wangary 2005). Project deliverable 4.1.5 Part 2 of 3 parts

Optical, Geospatial, Radar, and Elevation Supplies and Services Panel (OGRE) 2012-13 Annual Report (version 2 suspersedes GeoCat 77426)

Oral Presentation at Sentinel-2 Symposium 2014 - Frascati, Italy, May 2014