AndreaBozzo/ceres-open-data-index huggingface dataset:
SI 1043 Cape Fourcroy (West) (HIPP) Bathymetry Acquisition (20230016S)

The Cape Fourcroy (West)&nbsp;bathymetry survey was acquired for the Australian Hydrographic Office (AHO) during the period 18 Aug 2023 – 15 Oct 2023. This was a contracted survey conducted for the Australian Hydrographic Office as part of the Hydroscheme Industry Partnership Program. The survey area encompasses an area in Cape Fourcroy (West). Bathymetry data was acquired using a Kongsberg EM2040 MKII, and processed using CARIS HIPS and SIPS, and QIMERA processing software. The dataset was then exported as a 30m resolution, 32 bit floating point GeoTIFF grid of the survey area.

This dataset is not to be used for navigational purposes.

Tags: AusSeabed, Australia-wide geoscience data, EARTH SCIENCES, Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry, HVC_144641, Multibeam, Oceans, Offshore Mapping, Published_External, Resourcing Australia's Prosperity, bathymetric grids, bathymetry, multibeam
Organization: Australian Ocean Data Network
Geomorphic Features of Australia's Marine Jurisdiction WMS

The Geomorphic Features of Australia's Marine Jurisdiction web service brings together various datasets produced by Geoscience Australia that describe the distribution and types of geomorphic features found on the seabed of Australia's marine jurisdiction. This jurisdiction covers Australia's Exclusive Economic Zone, including offshore islands and territories. Geomorphic features have been identified using the best available bathymetric data with features generally mapped at a scale of 1:5 000 000.

Tags: Australia, EEZ, Earth Sciences, Published_External, WMS, geomorphology, marine, seabed, web service
Organization: Australian Ocean Data Network
Soela Voyage SO 1/84 Hydrology Data

This dataset contains the processed Hydrology (HYD) data collected on Soela voyage SO 1/84. The voyage took place in the North West Shelf during 25 January - 25 February 1984. This dataset has been processed and is archived within the CSIRO Marine and Atmospheric Research Data Centre in Hobart. Additional information regarding this dataset is contained in the cruise report for this voyage and/or the data processing report (as available). Soela on-voyage hydrology data are typically obtained from water samples collected in Niskin bottles at various depths. Parameters measured normally comprise temperature, salinity, dissolved oxygen, phosphate, nitrate, silicate, and nitrite.

Organization: Australian Ocean Data Network
Seismic refraction - a tool for studying coral reef growth

Seismic refraction studies have been conducted in close proximity to shallow boreholes previously drilled at Bewick (Northern Great Barrier Reef), Hayman (Central Great Barrier Reef) and Heron Islands (Southern Great Barrier Reef). Results show a seismic discontinuity at depths similar to the unconformity separating Holocene and pre-Holocene carbonates in the boreholes. Extensive seismic refraction studies have been conducted in the Capricorn/Bunker Reefs to assess the effects of substrate on modern reef growth, and the classification of modern reefs in the area. One hundred and twenty-four profiles were completed on six reefs. A marked seismic discontinuity, detected at depths ranging from 8-23 m, is equated with the Holocene/ pre-Holocene unconformity identified in the boreholes. Results show that the pre-Holocene surface forms a central depression with a raised rim around the perimeter beneath those reefs which have lagoons. This also appears to be the case beneath those reefs which presently have small or no lagoons, the inference being that Holocene sedimentation and growth have infilled the original depressions. The geophysical evidence does not support the claim that reefs of the southern Great Barrier Reef follow a latitudinal genetic sequence, but rather that the varied growth forms of the Holocene reefs have been determined to a considerable extent by the shape of the pre-Holocene surface.

Tags: Earth Sciences, GA Publication, Journal, Published_External, QLD, marine
Organization: Australian Ocean Data Network
RV Investigator Voyages IN2024_V01 Proton Transfer Reaction Mass Spectrometer Data

This dataset contains measurements of dimethyl sulfide (DMS) and methanethiol (MeSH) acquired using a Proton Transfer Reaction Time-of-Flight Mass Spectrometer (PTR-ToF-MS) during the RV Investigator voyage IN2024_V01 (“Multidisciplinary Investigations of the Southern Ocean (MISO): linking physics, biogeochemistry, plankton, aerosols, clouds, and climate,” from 2 January to 5 March 2024 (AEST), Hobart to Fremantle). These data provide key observations of trace gases in the Southern Ocean atmosphere, supporting studies of biogeochemical cycling, climate interactions, and ocean-atmosphere processes.

Organization: Australian Ocean Data Network
International Collaboration in Support of Indonesian Earthquake Hazard

The 2004 Sumatra earthquake was the most lethal natural disaster of modern times. Such a massive earthquake came as a surprise to earth scientists worldwide, who had grossly underestimated the earthquake potential in this part of the world. In order to address this gap in the science of Indonesian earthquakes, the Government of Australia supported a technical capacity-building program that brought Australian and Indonesian earthquake scientists together to focus not only on improved science, but also on cooperation among government and academia to effectively utilize the science to help Indonesian society protect itself from future earthquakes.

The major cause of fatalities in earthquakes is building collapse, so reduction of earthquake fatalities can be achieved through adoption of seismically resilient building practices that take into account the best available earthquake science via a seismic hazard map. Development of such a map for a tectonically active area like Indonesia is a major undertaking, and requires coordinating the efforts of geologists, seismologists, geodesists and geotechnical engineers. Moreover, knowledge of earthquakes is never complete, so a seismic hazard map is not a "one-off" but instead must be continually improved, and this requires education of a new generation of Indonesian scientists. 

The Australian-Indonesian collaboration in earthquake science described here attempted to achieve all this, and resulted in not only production of a modern earthquake hazard map, but also laid the foundation for a sustainable path towards development of improved earthquake hazard and risk products that will support Indonesian earthquake disaster risk reduction into the future.

Phil R. Cummins received his PhD in Geophysics from U. California Berkeley in 1988, and worked as a postdoctoral and research fellow at the Australian National University (ANU) until 1996, when he moved to the Japan Center for Marine-Earth Science and Technology (JAMSTEC). After leading a geodynamics research unit at JAMSTEC, in 2001 he took up a position leading earthquake and tsunami hazard research at Geoscience Australia. In 2011, he accepted a joint appointment between Geoscience Australia and ANU as Prof. Natural Hazards, where he combines teaching and research in natural hazards at ANU with technical application of earthquake and tsunami science at Geoscience Australia.

This talk is presented as part of the Distinguished Geoscience Australia Lecturer series on 23 May 2018.

Tags: EARTH SCIENCES, Wednesday Seminar, earthquake, earthquake fatalaties, hazards
Organization: Australian Ocean Data Network
Source rock potential and hydrocarbon prospectivity of the Darling Basin, NSW

Available geological and geophysical data for the dominantly Devonian Darling Basin of western New South Wales indicate a high risk for petroleum exploration. Hydrocarbon prospectivity is confined to the concealed western Darling Basin, where block-faulted, graben-like troughs contain a generally thick sequence of Middle Devonian to Lower Carboniferous continental sediments, underlain by Lower Devonian marine sediments. Geochemical data for cores from BMR Ivanhoe No. 1 and from thirteen petroleum exploration wells held on open file at BMR are used to evaluate source rock potential and organic maturation levels. The continental sediments have no source potential. The marine Lower Devonian Amphitheatre Formation has a generally low organic carbon content, is thought to be gas prone, and is thermally mature to overmature for oil generation. The geochemical data support the hypothesis that trough flanks and margins, where sediments have not been too deeply buried or thermally altered, offer the best prospects for preservation of source and reservoir rocks. On the basis of the limited data available, the eastern flank of the Lake Wintlow High - Wilcannia High is considered the most prospective region of the Darling Basin.

Tags: Earth Sciences, GA Publication, Journal, NSW, Published_External
Organization: Australian Ocean Data Network
A Regional Review of Coastal Hazards Along the South West Coast of Western Australia

The south-west coast of Western Australia is made up of a series of exposed limestone headlands which are prone to the development of cliff lines and large overhangs. Coastal processes such as wind and water erosion in conjunction with salt crystallisation and carbonate dissolution make these cliffs highly susceptible to collapse. The damaging impact that these unstable cliffs can have on the community was demonstrated on 27 September 1996, when four adults and five children were killed in a rockfall at Huzzas Beach, Gracetown.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Report, coasts, geohazards, marine
Organization: Australian Ocean Data Network
BMR Cruise 067 : Otway Basin and West Tasmanian Sampling

In early 1987, scientists aboard R.V. Rig Seismic carried out a 29 day research cruise over the Otway Basin and the Sorell Basin of the west Tasmanian margin, to provide new geological, geochemical and heatflow data, in an area with considerable petroleum potential. Altogether, 130 sampling stations were occupied using dredges, corers, grabs and a heatflow probe.

Among the rocks recovered were: Palaeozoic volcanics and metasediments; Late Cretaceous sandstones, siltstones and mudstones; early Tertiary siltstones; and late Tertiary carbonates. All samples were taken along seismic profiles, so that the results can be easily incorporated into the regional geological framework. In general, the further down the continental slope, the older the rocks. Palaeontological results indicate that there has been very considerable post-Eocene subsidence of the slope. A great variety of Quaternary sediments were recovered, and these have allowed a detailed sedimentation model to be developed.

Heatflow calculations from 20 stations suggest that the present zone of thermal maturation of hydrocarbons is 2-4 km deep. Headspace gas analyses of many cores indicate that thermogenic hydrocarbons are widespread, with particularly high readings in both the eastern and the western Otway Basin and on the west Tasmanian margin. Thus, mature hydrocarbon source rocks must also be widespread.

Tags: AU-TAS, Earth Sciences, GA Publication, Published_External, Report, marine, marine survey
Organization: Australian Ocean Data Network
Seafloor Mapping of the South-east Marine Region and Adjacent Waters. AUSTREA Final Report: Lord Howe Island, South-east Australian Margin (includes Tasmania and South Tasman Rise) and Central Great Australian Bight

In early 2000 the Australian Geological Survey Organisation (AGSO) completed two major seabed swath-mapping and geophysical surveys of the Australian South-east Marine Region.
These surveys, AUSTREA-1 and AUSTREA-2, were commissioned by the National Oceans Office and Environment Australia and were designed to provide important new scientific information on the seabed in this region to assist implementation of Australia's Ocean Policy, and in particular, development of the South-east Regional Marine Plan and establishment of marine protected areas (MPAs) within and adjacent to the South-east Marine Region.

Tags: AU-TAS, Earth Sciences, GA Publication, Published_External, Record, bathymetry, marine, marine jurisdiction, marine survey
Organization: Australian Ocean Data Network
BF2022_v01 Zeehan and Franklin Marine Parks, West Coast Tasmania Bathymetry Acquisition (20220009S)

The Zeehan and Franklin Marine Parks, West Coast Tasmania&nbsp;Bathymetry Acquisition was acquired by CSIRO onboard the TV Bluefin between 22 Feb 2022 and 21 Mar 2022, using a Kongsberg EM2040C. This was a contracted survey conducted for the Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, to conduct a multibeam survey encompasing the Zeehan and Franklin Marine Parks for Parks Australia. Bathymetry data was processed using QPS Qimera and Caris Hips &amp; Sips processing software. The dataset was then exported as a 2m resolution, 32 bit floating point GeoTIFF grid of the survey area. A detailed report on the survey is provided in: Hydrographic Survey of Zeehan and Franklin Marine Parks, West Coast Tasmania (https://figshare.utas.edu.au/articles/report/Hydrographic_Survey_of_Zeehan_and_Franklin_Marine_Parks_West_Coast_Tasmania/23171318).

This dataset is not to be used for navigational purposes.

Tags: AusSeabed, EARTH SCIENCES, Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry, HVC_144641, Oceans, Published_External, bathymetric grids, bathymetry, multibeam
Organization: Australian Ocean Data Network
Application of biophysical information to support Australia's representative marine protected area program

In order to protect the biological diversity of marine life in Australia's Exclusive Economic Zone (EEZ), the commonwealth government has passed the Environmental Protection and Biodiversity Conservation (EPBC) Act.  The Act is being implemented through preparation of regional marine plans (commenced in 2001) and by designing networks of representative marine protected areas (MPAs) in both commonwealth and state waters.  In the absence of direct information about the distribution of seabed biodiversity, appropriate surrogates must be used instead.  A major constraint is the short time-frame available to managers to make decisions; only information that is readily accessible and available can be used under these circumstances.  Existing seabed bathymetry data were used to produce a geomorphic features map of the Australian EEZ.  This map was used in conjunction with existing fish diversity information and other data to derive a Benthic Bioregionalisation (2005) that subdivides Australia's EEZ into 41 bioregions including 24 biologically unique provinces.  Biophysical variables measured at broad spatial scales apart from bathymetry (and derived variables such as seabed slope) include ocean primary production, seabed sediment properties, temperature and sediment mobilisation due to waves and tides. To better characterise habitats on the Australian continental margin, Geoscience Australia has created 'seascape' maps that integrate multiple layers of spatial data that are useful for the prediction of the distribution of biodiversity.

Existing seabed bathymetry data were used to produce a geomorphic features map of the Australian EEZ.  This map was used in conjunction with existing fish diversity information and other data to derive a Benthic Bioregionalisation (2005) that subdivides Australia's EEZ into 41 bioregions including 24 biologically unique provinces.

Tags: AU, Earth Sciences, External Publication, GIS, Published_External, Scientific Journal Paper, bathymetry, geomorphology, habitat, marine
Organization: Australian Ocean Data Network
ODNL Penola No 1 Well, South Australia Of Oil Development NL

O.D.N.L. Penola No. 1 Well, located in the north-east corner of Section 500, Hundred of Penola, South Australia, was drilled by Oil Development N.L. under a "farm-out" agreement with General Exploration Company of Australia Limited to a total depth of 4985 feet. Drilling was commenced on 7th February, 1961, and the well was abondoned as a dry hole on 5th May, 1961. The drilling contractor was Australian Tube Wells Pty Ltd, and the rig used was a Failing 2500 - Holemaster. The operation provided for a programme of electric and mud logging, testing and coring.

The Penola Well was designed to test the petroleum potentialities of the Coonawarra subsurface structure, which was first detected by a single reconnaissance seismic reflection traverse made through the Penola area. Beneath a thin Pleistocene cover Penola No. 1 penetrated a sequence of marine and paralic Tertiary, and marine and non-marine Mesozoic rocks, ranging in age from Oligocene to probable Upper Jurassic. The Tertiary sediments consisted of 215 feet of Gambier Limestone (Oligocene); 160 feet of Compton Conglomerate (Oligocene); followed by about 630 feet of paralic sands and grits of the Knight Group (middle to upper Eocene).

There is a marked discontinuity at l040 feet where the well passed abruptly from the Eocene to Cretaceous arkosic sandstones and siltstones of the Merino Group. The Upper Member of the Runnymede Formation of Albian to (?) Cenomanian age was 2380 feet thick, and of marine origin in at least the lower 800 feet, between 2586 and 3420 feet. The lower nonmarine member of the Runnymede Formation (? Aptian) was represented between 3420 and 4300 feet. A slight angular unconformity is interpreted at about 4300 feet, below which the well is considered to have entered non-marine mudstones and sandstones of the Mocamboro Member of probable Upper Jurassic age.

Minor showings of gas were encountered at Penola No. 1, none being of commerial significance. No signs of live oil were observed in the well.

Tags: AU-SA, Earth Sciences, GA Publication, Other Publication, Published_External, petroleum exploration
Organization: Australian Ocean Data Network
Geological Framework of the Kerguelen Plateau and Adjacent Ocean Basins

As part of its program to define the extents of the Australian Legal Continental Shelf on the Kerguelen Plateau AGSO acquired over 5500 km of new seismic data including the first regional datasets over Elan Bank and in the Labuan Basin. This report presents results of a geological framework study carried out to underpin the Australias Law of the Sea claim on the Kerguelen Plateau. It provides an up to-date analysis of the stratigraphy, structure, geological evolution and petroleum prospectivity of the Kerguelen Plateau region taking into account recent ODP drilling, geological sampling, seismic reflection and refraction data, as well as potential field data.

Tags: Earth Sciences, GA Publication, Published_External, Record, continental margins, geology, marine, marine jurisdiction, plate tectonics
Organization: Australian Ocean Data Network
A reassessment of the petroleum systems in the offshore northern Perth Basin

The discovery of commercial oil in the Cliff Head-1 well in 2001 set an important milestone in the exploration history of the offshore northern Perth Basin. The region had been largely underexplored before then, partly due to the perception that the Hovea Member, a 10 to 40 m-thick unit straddling the Permian-Triassic boundary (PTB) and recognized as the main source of onshore petroleum accumulations, was not developed offshore (Crostella, 2001). The typing of the Cliff Head oil to the Hovea Member provided evidence that the key onshore petroleum system extends offshore and revitalized exploration in the area with 13 new field wildcat wells drilled since 2002. Three discoveries have been made subsequently further offshore in the Abrolhos Sub-basin with gas retrieved in Frankland-1 and Perseverance-1 and oil and gas in Dunsborough-1.

A review of source rock and oil geochemical data was undertaken by Geoscience Australia in the offshore northern Perth Basin as part of a major integrated study aimed at reassessing the basin's prospectivity. This work supports the release of offshore exploration areas W13-19 and W13-20, two major blocks straddling the Houtman and Abrolhos Sub-basins with small portions extending into the Zeewyck and Gascoyne Sub-basins (Fig. 1). Well control is provided by 5 wells from the Wittecarra Terrace in the northern Abrolhos Sub-basin and Houtman-1 in the Houtman Sub-basin.

Tags: Conference Paper, Earth Sciences, External Publication, Published_External, marine
Organization: Australian Ocean Data Network
RV Investigator voyages BGC Argo Float Data

These datasets comprise observations from Biogeochemical Argo (BGC-Argo) profiling floats deployed during RV Investigator voyages. The floats collect high-resolution measurements of ocean physical and biogeochemical properties, including temperature, salinity, and combinations of dissolved oxygen, pH, dissolved nitrate, chlorophyll fluorescence, particulate backscatter, and incoming solar radiation.

The datasets support investigations into variability in the ocean’s biological carbon pump, the uptake of anthropogenic CO₂ by the ocean, and long-term trends in ocean deoxygenation and acidification. They are also relevant for marine resource management and provide essential in situ data for the validation of satellite-based biogeochemical and ocean colour products. The RV Investigator BGC-Argo datasets contribute to sustained ocean observing efforts, particularly in the Southern Hemisphere, by improving spatial and temporal coverage of key biogeochemical variables.

Organization: Australian Ocean Data Network
The Carpentaria Reefs: A New Coral Reef Province for Australia

This movie describes the main findings of two Geoscience Australia surveys to the Gulf of Carpentaria in 2003 (survey 238) and 2005 (survey 276).  The story relates to the discovery of submerged coral reefs across the southern Gulf and how they were identified using new multibeam sonar technology.  The age of the reefs was determined using drill-core samples collected from the reefs, and measured by the Uranium/Thorium method at the Australian National University.  The submerged reefs in the Gulf were not known to exist prior to this study and their discovery adds a new coral reef province to be managed and protected as part of Australia's marine zone.

Tags: AU-NT, AU-QLD, Earth Sciences, Movie, Multimedia, Published_External, bathymetry, carbonate, continental shelf, marine, marine survey
Organization: Australian Ocean Data Network
Shedding light on the seafloor

In 2007-08 scientists from Australia, Japan and France set out to survey the marine life and habitats in the region adjacent to Terre Adelie and George V Land in East Antarctica (Australian Antarctic Magazine 14: 2-13, 2008). The Collaborative East Antarctic Marine Census (CEAMARC) - part of Australia's contribution to the International Polar Year - aimed to understand the processes that have lead to the evolution and survival of marine life existing in the region today, so that scientists can predict how these organisms may respond to future climate-related changes in their environment. Scientists involved in the census are now finalising the collation and analysis of data and the following pages (13-18) provide an insight into some of the results. The team aims to publish its findings as a series of papers in a special volume of a scientific journal in late 2010.

Tags: AQ, Antarctic data, Article, Earth Sciences, External Publication, Published_External, abiotic surrogates, marine
Organization: Australian Ocean Data Network
Seafloor Bathymetry of Perth Canyon Marine Park

Bathymetry flythrough of Perth Canyon using data acquired by Schmidt Ocean Institute in 2015 on RV Falkor (University of Western Australia et al.). The flythrough highlights geomorphic features mapped by Geoscience Australia, including landslides, escarpments and bedform fields and biodiversity associated with the canyon (benthic and pelagic). Produced as a science communication product for the Marine Biodiversity Hub (National Environmental Science Program).

This research is supported by the National Environmental Science Program (NESP) Marine Biodiversity Hub through Project D1.

Tags: Marine Biodiversity Hub, National Environmental Science Program, Published_External, biodiversity, geomorphology, marine
Organization: Australian Ocean Data Network