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Seabed Environments, Shallow Sub-surface Geology and Connectivity, Petrel Sub-basin, Bonaparte Basin, Timor Sea
"This report provides an analysis and evaluation of fluid seepage and habitats in two targeted areas of the Petrel Sub-basin, Bonaparte Basin, northern Australia, and provides scientific information on the seabed and shallow sub-surface geology as part of a study on the potential of this area for CO2 sequestration. The Petrel Sub-basin, located beneath the modern Joseph Bonaparte Gulf, has been assessed by Geoscience Australia as part of the Australian Government funded National Low Emissions Coal Initiative (NLECI) to accelerate the development and deployment of low emissions coal technologies including geological sequestration of CO2. This study is the first undertaken by Geoscience Australia that integrates seafloor and shallow sub-surface geology data to provide information on the potential to sequester CO2 in sub-surface geological reservoirs and their suitability for purpose." -- Online abstract.
Seabed Environments and Shallow Geology of the Leveque Shelf, Browse Basin, Western Australia
"In May 2013, Geoscience Australia, in collaboration with the Australian Institute of Marine Science, undertook a marine survey of the Leveque Shelf (survey number SOL5754/GA0340), a sub-basin of the Browse Basin, on the AIMS research vessel, Solander. The survey provided seabed and shallow geological information to support an assessment of the CO2 storage potential of the Browse sedimentary basin. The basin, located on the Northwest Shelf, Western Australia, was previously identified by the Carbon Storage Taskforce (2009) as potentially suitable for CO2 storage. The survey was undertaken under the Australian Government's National CO2 Infrastructure Plan (NCIP) to help identify sites suitabl...
Climate Change Impacts on Ocean and Coastal Law
Ocean and coastal law has grown rapidly in the past three decades as a specialty area within natural resources law and environmental law. The protection of oceans has received increased attention in the past decade because of sea-level rise, ocean acidification, the global overfishing crisis, widespread depletion of marine biodiversity such as marine mammals and coral reefs, and marine pollution. Paralleling the growth of ocean and coastal law, climate change regulation has emerged as a focus of international environmental diplomacy, and has gained increased attention in the wake of disturbing and abrupt climate change related impacts throughout the world that have profound implications for ...
Seafloor Geomorphology as Benthic Habitat
The conservation of marine benthic biodiversity is a recognised goal of a number of national and international programs such as the United Nations Convention on Biodiversity (CBD). In order to attain this goal, information is needed about the distribution of life in the ocean so that spatial conservation measures such as marine protected areas (MPAs) can be designed to maximise protection within boundaries of acceptable dimensions. Ideally, a map would be produced that showed the distribution of benthic biodiversity to enable the efficient design of MPAs. The dilemma is that such maps do not exist for most areas and it is not possible at present to predict the spatial distribution of all mar...
Marine Geomorphometry
Geomorphometry is the science of quantitative terrain characterization and analysis, and has traditionally focused on the investigation of terrestrial and planetary landscapes. However, applications of marine geomorphometry have now moved beyond the simple adoption of techniques developed for terrestrial studies, driven by the rise in the acquisition of high-resolution seafloor data and by the availability of user-friendly spatial analytical tools. Considering that the seafloor represents 71% of the surface of our planet, this is an important step towards understanding the Earth in its entirety. This volume is the first one dedicated to marine applications of geomorphometry. It showcases stu...
Seabed Habitats and Hazards of the Joseph Bonaparte Gulf and Timor Sea, Northern Australia
"The Joseph Bonaparte Gulf and Timor Sea region (JBG-TS) is an area of significance for multiple resource needs, from marine planning to offshore industry development. As such, information on seabed environments in this region is of interest to both industry and marine management. Geoscience Australia is focussed on the collation and preparation of regional pre-competitive environmental datasets, the outputs of which can be used for pre and post-bid environmental assessments and for emergency response planning. This report provides a spatial synthesis of seabed environments for the Joseph Bonaparte Gulf and Timor Sea region (JBG-TS) by identifying and describing significant habitats, communities, and potential geohazards. Data are sourced from existing literature, including publicly available industry data, as well as data collected from two seabed mapping surveys to the Van Diemen Rise in the eastern Timor Sea (GA-322 and GA-325)." -- Online abstract.
Marine Seismic Survey Impacts on Fish and Invertebrates
"This report is the culmination of the Gippsland Marine Environmental Monitoring (GMEM) project. The GMEM was developed in response to stakeholder concerns from the fisheries industry about a Geoscience Australia seismic survey in the Gippsland Basin (GA352 in April 2015), in addition to a broader need to acquire baseline data to be used to quantify impacts of seismic operations on marine organisms. The GMEM involves six components: 1) Theoretical sound modelling, 2) Sound monitoring and field-based modelling, 3) Scallop assessment using an Automated Underwater Vehicle (AUV), 4) Scallop assessment using dredging 5) Fish avoidance behaviour using acoustic tagging and monitoring, and 6) Analysis of fisheries catch data. The results and interpretations of these components are detailed in this final report."--Online abstract.
Seabed Environments and Shall Sub-surface Geology of the Vlaming Sub-basin Offshore Perth Basin
"As part of the Australian Government's National CO2 Infrastructure Plan (NCIP), Geoscience Australia has undertaken integrated assessments of selected offshore sedimentary basins for their CO2 storage potential. In March and April 2012, Geoscience Australia completed a seabed survey (GA0334) over two targeted areas (Area 1 and Area 2) of the Vlaming Sub-basin (Figure 1 1), as part of a larger study investigating the suitability of the Vlaming Sub-basin for geological storage of CO2. This document summarises the results and interpretation of seabed and shallow geological (to 30 m below the seabed) data acquired during survey GA0334 in the Vlaming Sub-basin. These data and their interpretations are being used to support the investigation of the Vlaming Sub-basin for CO2 storage potential."--Online abstract.
Oceanic Shoals Commonwealth Marine Reserve (Timor Sea) Biodiversity Survey
"This report provides details of activities undertaken by the Australian Institute of Marine Science (AIMS), Geoscience Australia, the University of Western Australia and the Museum and Art Gallery of the Northern Territory during a marine biodiversity survey to the Oceanic Shoals Commonwealth Marine Reserve (Timor Sea) in 2012. The survey was an activity within the Australian Government's National Environmental Research Program Marine Biodiversity Hub and is a key component of Theme 4 - Regional Biodiversity Discovery to Support Marine Bioregional Plans. Data collected during the survey will be used to support research being undertaken in other Themes of the Marine Biodiversity Hub, including the modelling of ecosystem processes for the northern region, and to support the work programs of the Department of Environment". --Online abstract.
