Public Talks Archive
A selection of the following public talks have been filmed and are available online for on demand viewing after the presentation.
Searching for paleoclimate archives on the East Antarctic margin with the RV Investigator: Sabrina Seafloor Survey 2017
30 August 2017
Early 2017 saw the first full Antarctic geoscience survey on Australia's new National Facility RV Investigator to map and sample the Antarctic continental slope south of Western Australia. The survey aimed to recover paleoclimate records for a major outlet glacier, the Totten Glacier.
Geoscience Australia holds large quantities of data and samples collected over the last 100 years. This series of presentations examines the unlocking and use of some of these older data sets.
You, me and Geodesy: How geodesy enables more than navigation and precise positioning.
16 August 2017
Geodesy is the science of measuring the shape and gravity field of the Earth and how it changes over time. It enables many things in our day-to-day life from financial transactions to satellite communication. Many of us take it for granted; but, where would be without it?
Marine Spatial Planning in Pacific Island Countries
09 August 2017
The natural resources in marine and coastal areas not only play a significant role in the cash economies of the Pacific island states, they also dominate the population's nutritional and cultural resources. This project is assisting national governments to: conduct economic valuations of marine resources, implement Marine Spatial Planning, and scale up effective approaches to coastal site management.
IODP Expedition 369 - understanding Cretaceous climate and oceans in the southern hemisphere
02 August 2017
IODP expedition 369 in September-November 2017 will drill several stratigraphic wells off southwest Australia in the Bight and Mentelle basins. This expedition will study how the Earth's climate and oceans responded to the elevated levels of atmospheric CO2, the evolution of water chemistry and changes in the biota.
An energy revolution? How unconventional petroleum resource assessments improve our understanding of the national resource endowment
26 July 2017
Geoscience Australia has completed a series of unconventional (shale and tight gas and liquids) petroleum resource assessments. This presentation will set the context for the work, describe the methods and briefly present the results.
Towards Earthquake-resilient Buildings: Rupture Process & Exposure/Damage Analysis of the 2013 M7.1 Bohol Philippines
19 July 2017
This talk highlights the ground motion simulations for the 2013 Bohol Philippines earthquake and the development of building fragility and vulnerability models. In this post-event assessment, emphasis is placed in assembling a comprehensive exposure/damage database whenever damaging earthquakes occur, for more credible earthquake impact forecasts and loss estimation.
Large asteroid impact structures constitute essential structural elements of the Australian continental crust. This talk introduces a newly compiled GA compendium of 38 proven asteroid impact origin and 43 ring and dome features of unknown origin and possible to probable impact origin. Given the difficulty in identifying impact ejecta units in the field and of buried impact structures using geophysical data, as well as the paucity of research efforts in this field, it is estimated that no more than about 10 percent of impact fallout units and no more than one third of buried impact structures have been discovered to date.
Australia's role in scientific ocean drilling, and opportunities for Geoscience Australia geoscientists
05 July 2017
The International Ocean Discovery Program (IODP) is the world's largest and longest lived purely scientific geoscience program, involving both geoscientists and microbiologists. Australia and New Zealand are part of the international IODP consortium that has an annual operational budget of $US180 million, and provides deep coring vessels to operate in nearly all marine environments and water depths, addressing global scientific problem.
Continental scale electrical conductivity structure and geomagnetic induction hazard in Australia
28 June 2017
We present a three-dimensional electrical conductivity model for the Australian continent derived from magnetic array data. The model adds to our knowledge of the structure of the Australian crust and mantle and is applied to highlight spatial variability in the electric field induced by geomagnetic activity.
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