AndreaBozzo/ceres-open-data-index huggingface dataset:
Establishing hydrocarbon charge to the Ashmore Platform, Bonaparte Basin, Australia: A natural seep study

To date there is one proven hydrocarbon accumulation on the Ashmore Platform, Bonaparte Basin, Australia, with hydrocarbon charge remaining a key exploration risk. To the south, the neighbouring Browse Basin has proven lateral migration of generated hydrocarbons to the basin bounding highs, as evidenced by seeps located on the Yampi Shelf. This paper describes the findings of a natural seeps study carried out to establish if migrating subsurface hydrocarbons reach the southern flanks of the Ashmore Platform basement high. The integrated study combined remote sensing, geophysical, acoustic, photographic and geochemical techniques and has identified three areas of seepage; one area characteristic of persistent seepage and two areas of interpreted episodic leakage. Geochemical data collected from samples at one of these sites demonstrates the presence of thermogenic liquid hydrocarbons, with isotopic compositions falling within the range of values exhibited by oils sourced by the Lower Cretaceous Echuca Shoals Formation. The identification of active natural seepage along the southern flank of the Ashmore Platform provides evidence that hydrocarbons generated within the Caswell Sub-basin are able to laterally migrate onto the flanks of the Ashmore Platform structural high. As such, these findings reduce charge risk for the Ashmore Platform and regional exploration risks in the northern Browse Basin.

<b>Citation:</b> Stalvies, C., Talukder, A., Ross, A., Grosjean, E., Carr, A., Williams, A., Gresham, M., Binning, M. &amp; Jablonski, D., 2017. Establishing hydrocarbon charge to the Ashmore Platform, Bonaparte Basin, Australia: A natural seeps study. Marine and Petroleum Geology, 82, pp.56–68.
https://doi.org/10.1016/j.marpetgeo.2016.12.018

Tags: Ashmore Platform, Browse Basin, Echuca Shoals Formation, Hydrocarbon Seepage, Hydrocarbon migration, Marine survey, Seep detection
Organization: Australian Ocean Data Network
Image Collection - RV Investigator Voyage IN2018_V06 - Status and recovery of deep-sea coral communities on seamounts in iconic Australian marine reserves

This data set contains the imagery collected on the Marine National Facility (MNF) RV Investigator voyage IN2018_V06, titled "Status and recovery of deep-sea coral communities on seamounts in iconic Australian marine reserves." The voyage took place from Hobart (TAS) to Hobart between November 23 and December 19, 2018, collecting imagery of benthic habitats together with oceanographic data.

Instrument(s) used to collect this data:
MNF Deep Towed camera (DTC)

Datasets include: 
Video (oblique forward view)
Stereo stills (oblique forward view)
Navigational data

Organization: Australian Ocean Data Network
Coral Sea - Calder Seamount - Geomorphology and Surface Classification

Voyage IN2019_V04 contributed an additional 29,000 kms2 of seafloor survey data to the Coral Sea knowledge base. From this new bathymetric data individual seamounts have been extracted and have been classified to the Geoscience Australia Geomorphology Classification Scheme. This dataset contains two layers representing the classification layers- 1) Surface (Plain, Slope, Escarpment) and 2) fine scale Geomorphology of the seamount for the Calder Seamount.
Ongoing research with this survey data will provide new insights into the detailed geomorphic shape and spatial relationships between adjacent seabed features. This information will be released in future publications to show the potential of how the scale of such seafloor data can be used for predictive habitat modelling when analysed with the biological data overlays.

Organization: Australian Ocean Data Network
A new bathymetric compilation of the Cape Darnley region, East Antarctica

The Cape Darnley region in East Antarctica has been an area of scientific interest for a variety of disciplines over the last three decades. The recent acquisition of several high-resolution bathymetry datasets enabled the compilation of a detailed regional bathymetry grid. We present a high-resolution bathymetric compilation of the Cape Darnley region in East Antarctica, including areas of the Mac.Robertson Land shelf, slope and adjacent deep sea. A variety of data, single-beam and multibeam swath bathymetry and digitized depths from nautical charts were sourced from numerous institutions. The 100 m-resolution gridded bathymetric dataset improves previous bathymetric representations of the region and enables visualization of the seafloor morphology in unprecedented detail. The bathymetry grid has been constructed using a layered hierarchy approach based on the source of each dataset. This data compilation forms important baseline information for a range of scientific applications and end users including oceanographers, glacial modellers, biologists and geologists. The compilation will aid numerical modelling of ocean circulation, reconstruction of palaeo-ice streams and refinement of ice-sheet models.

<b>Citation:</b> Smith J, Nogi Y, Spinoccia M, Dorschel B, Leventer A. A bathymetric compilation of the Cape Darnley region, East Antarctica. <i>Antarctic Science.</i> 2021;33(5):548-559. doi:10.1017/S0954102021000298

Tags: Cape Darnley, East Antarctica, Mac.Robertson shelf, Marine Geoscience, Published_External, bathymetric mapping, data compilation, multibeam echosounder
Organization: Australian Ocean Data Network
RETIRED - National Petroleum Wells Database

<b>RETIRED - This record has been superseded by eCat 126310 as advised by M. Webster 16 June 2023.
The National Petroleum Wells Database has now been combined with the Geoscience Australia Borehole Database (BOREHOLE).

The Petroleum Wells Online Tool is no longer available for use. The same data can be accessed through the Geoscience Australia Portal. Simply select the Layers button to find the Borehole data available to view and query. If you are having trouble, please follow the <a href="https://portal.ga.gov.au/help guides">help</a>. 
For general inquiries, please email client services.</b>

This application provides access to GA's Oracle petroleum wells databases. Data themes include header data, biostratigraphy, organic geochemistry, reservoir and facies, stratigraphy, velocity and directional surveys.  Data is included for offshore and onshore regions. Scientific data entry is generally only conducted for offshore wells. Onshore data is generally acquired from state geological surveys.

Tags: AU, National dataset, Petroleum Data, Petroleum and Coal Geology, Published_External, Wells, marine, petroleum exploration, petroleum reserves
Organization: Australian Ocean Data Network
DEA Coastal Ecosystems

Mapping coastal ecosystems is vital for understanding, managing, and protecting the diverse habitats that line our shorelines. These ecosystems—ranging from mangroves and saltmarshes to seagrass meadows and coral reefs—provide essential environmental services, including carbon storage, coastal protection, and habitat for marine biodiversity. From an economic standpoint, they sustain industries such as fisheries and tourism while reducing costs associated with coastal erosion and storm damage. Accurate and comprehensive mapping underpins management, restoration, and conservation efforts, allowing planners to identify priority areas, monitor ecological change, and assess the effectiveness of interventions.



Achieving this at a continental scale, however, poses significant challenges. Traditional methods such as field surveys, aerial photography, and local-scale sampling are costly, labour-intensive, and constrained in spatial and temporal scope—limitations that are particularly relevant in a country as vast and remote as Australia. Earth Observation (EO) provides an efficient and consistent alternative, allowing large-scale, high-resolution, and repeatable mapping through the use of publicly available satellite imagery.



The&nbsp;<strong>Digital Earth Australia (DEA) Coastal Ecosystems</strong>&nbsp;product suite (https://knowledge.dea.ga.gov.au/data/product/dea-coastal-ecosystems/) is the first national dataset to simultaneously map Australia’s mangrove, saltmarsh, intertidal, and intertidal seagrass ecosystems at 10 m resolution, using annual time-series of Sentinel-2 satellite imagery for consistent mapping at a continental scale.&nbsp;





<strong>Applications</strong>



- National Environmental Ecosystem Accounts

- National and Regional State of the Environment reporting

- A complementary mapping product to fill spatial and temporal gaps in higher resolution expert mapping (aerial and drone mapping, field surveys)

- Future integration with other terrestrial and ocean data sets (e.g. Land Cover and Marine Tenure)

- Coastal protection and Hazard modelling





Tags: Coastal Habitats, Digital Earth Australia, Earth Observation, Earth and space science informatics, Ecosystem Mapping, Intertidal, Machine Learning, Published_External
Organization: Australian Ocean Data Network
Seafloor environments of the eastern Timor Sea, Northern Australia: Sediment oxygen demand of seabed sediments.

The Timor Sea and its tropical marine environment support significant and growing economic activity including oil and gas exploration. To reduce uncertainty in decision making regarding the sustainable use and ongoing protection of these marine resources, environmental managers and resource users require sound scientific information on the composition and stability of seabed environments and their biological assemblages. Surveys SOL4934 and SOL5117 to the eastern Joseph Bonaparte Gulf were undertaken in August and September 2009 and July and August 2010 respectively, in collaboration with the Australian Institute of Marine Science, with research collaborations from the RAN Australian Hydrographic Office, the Geological Survey of Canada and the Museum and Art Gallery of the Northern Territory. The purpose of these surveys were to develop biophysical maps, and deliver data and information products pertaining to complex seabed environment of the Van Diemen Rise and identify potential geohazards and unique, sensitive environments that relate to offshore infrastructure. This dataset comprises sediment oxygen demand measurments made on the upper 2 cm of seabed sediments.

Some relevant publications are listed below:
<ol>
<li>Heap, A.D., Przeslawski, R., Radke, L., Trafford, J., Battershill, C. and Shipboard Party. 2010. Seabed environments of the eastern Joseph Bonaparte Gulf, Northern Australia: SOL4934 Post Survey Report. Geoscience Australia Record 2010/09, pp.81.</li>
<li>Anderson, T.J., Nichol, S., Radke, L., Heap, A.D., Battershill, C., Hughes, M., Siwabessy, P.J., Barrie, V., Alvarez de Glasby, B., Tran, M., Daniell, J. &amp; Shipboard Party, 2011b. Seabed Environments of the Eastern Joseph Bonaparte Gulf, Northern Australia: GA0325/Sol5117 - Post-Survey Report. Geoscience Australia, Record 2011/08, 58pp.</li>
<li>Radke, L.C., Li, J., Douglas, G., Przeslawski, R., Nichol, S, Siwabessy, J., Huang, Z., Trafford, J., Watson, T. and Whiteway, T. Characterising sediments of a tropical sediment-starved continental shelf using cluster analysis of physical and geochemical variables. Environmental Chemistry, in press</li>
</ol>

Tags: AU-NT, Continental Shelf, Marine Data, Marine Geoscience, Published_External, geochemistry, marine, marine survey, seabed
Organization: Australian Ocean Data Network
Casey sediment macrofaunal community data 1997 to 2014

Data from core and grab samples of marine sediments collected around Casey station and Windmill Islands between 1997 and 2014. Sediments were processed to count and identify macrofaunal communities of marine invertebrates (greater than 1mm). Macrofauna were identified to species level or morphospecies where an ID could not be made.

A spatially nested sampling design was used with samples take at 19 Locations (main scale of comparison) and within locations at scales of 100 m (termed Sites, usually 2 within each location) and within Sites at a scale of 10 m (termed Plots, usually 2 within each Site). Replicate samples were taken within plots (2 to 4 replicates), usually separated by 1 - 2 m. Cores (10 cm diam. and 10 cm deep where possible) were the routine method of sampling and taken by divers, but in some seasons grab samples were taken with a van veen or eckman grab. Samples were collected between 5 and 30 m depth. Sample method is indicated in the data.

Samples were taken in summers of 1996/97, 97/98, 98/99, 2002/03, 03/04, 04/05, 06/07 and 2014/15. Some samples were also taken in winter 1998.

The data is as an excel spreadsheet with samples as rows and species as columns.

A separate spreadsheet has details of GPS coordinates for each location.

Tags: 4180, AAS 4180, AMD, AMD/AU, BENTHIC GRABS, CEOS, CONTINENT > ANTARCTICA > BROWN BAY, CONTINENT > ANTARCTICA > CASEY WHARF, CONTINENT > ANTARCTICA > HONKALA ISLAND, CONTINENT > ANTARCTICA > MCGRADY COVE, CONTINENT > ANTARCTICA > NEWCOMB BAY, CONTINENT > ANTARCTICA > O'BRIEN BAY, CONTINENT > ANTARCTICA > SHANNON BAY, CONTINENT > ANTARCTICA > SPAKES BAY, CONTINENT > ANTARCTICA > STEPHENSON COVE, CONTINENT > ANTARCTICA > WILKES, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > AMPHI, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > DECAP, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > ISOPO, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > MYSID, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > OSTRA, EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > SEGMENTED WORMS (ANNELIDS) > BRI, EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > COMMUNITY STRUCTURE, EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC, EARTH SCIENCE > CRYOSPHERE > SEA ICE, EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING, EARTH SCIENCE > OCEANS > MARINE SEDIMENTS, EARTH SCIENCE > OCEANS > SEA ICE, EARTH SCIENCE > OCEANS > WATER QUALITY > OCEAN CONTAMINANTS, FIELD SURVEYS > FIELD SURVEYS, GEOGRAPHIC REGION > POLAR, POLYCHAETES, SCUBA DIVER, SEDIMENT CORERS > SEDIMENT CORERS, SEDIMENT MACROFAUNA, ZODIACS
Organization: Australian Ocean Data Network
Molecular Hydrogen from Organic Sources in Geological Systems

We have recently shown that molecular hydrogen generation from organic matter occurs at high maturity levels (vitrinite reflectance 3–5%) in Lower Cretaceous shales of the Songliao Basin. To evaluate and extend these implications to a wider range of source rock types and organofacies, we report on two Paleozoic maturity suites from Australia, namely the Permian Patchawarra Formation (fluviodeltaic; Type-III; Cooper Basin) and the middle Cambrian Arthur Creek Formation (marine; Type-II; Georgina Basin), and additional mature marine source rocks from Europe and the USA.

It can be inferred from high resolution mass spectrometry that rapid growth of aromatic ring systems is the major pathway for the formation of thermogenic molecular hydrogen from all organic matter types. Extensive open system pyrolysis experiments indicate that the main generation pulse occurs in the vitrinite reflectance range 3.5–5.0%. Kinetic parameters were constructed by subtracting the hydrogen associated with hydrocarbon formation from total hydrogen in the open-system experiments via adjustment factors defined by the relative yields of CH4 and H2. A cumulative H2 potential of 20 mg/g TOC is found with maximum rates of generation that are sufficient for feeding the deep biosphere. Back of the envelope calculations indicate ∼3.5E+10 tonnes of in-place accessible H2 globally, which is an order of magnitude lower than in-place shale gas resource estimates. Regionally, inferred here for the Patchawarra Formation in the Nappamerri Trough (Cooper Basin), yields per unit rock volume resemble those of economic shale gas in the Barnett Shale, Fort Worth Basin, USA.

Organic particles are, at the SEM-scale (&gt;30 nm), barren of secondary porosity in the case of terrigenous samples at all maturity stages, but show sponge-like porosity in the investigated marine source rocks exhibiting vitrinite reflectance &gt;∼2.0%. Presence of such meso- and macropores is crucial for H2 storage in marine shales, as microporosity (&lt;2 nm) yielding sorptive storage space for H2, is usually much higher in mature terrigenous kerogens.

<b>Citation:</b> Nicolaj Mahlstedt, Brian Horsfield, Philipp Weniger, David Misch, Xiangyun Shi, Mareike Noah, Christopher Boreham, Molecular hydrogen from organic sources in geological systems, <i>Journal of Natural Gas Science and Engineering</i>, Volume 105, 2022, 104704, ISSN 1875-5100, 
https://doi.org/10.1016/j.jngse.2022.104704.

Tags: Arthur Creek formation, EARTH SCIENCES, FT-ICR-MS, BIB-SEM, GEOCHEMISTRY, Patchawarra formation, Published_External, biogenic, geologic, kinetic modelling, pyrolysis, resource estimation, thermogenic hydrogen
Organization: Australian Ocean Data Network
RV Investigator Voyage IN2021_V01 EM710 MKII Multibeam Echosounder Data

This record describes multibeam echosounder data collected on RV Investigator voyage IN2021_V01,  titled: "Quantifying krill abundance for krill monitoring and management off the Australian Antarctic Territory," which departed Hobart on the 29th January 2021 and returned to Hobart on the 24th March 2021 (AEST).

The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry, backscatter information and watercolumn backscatter for only a short duration at the beginining of the voyage, followed by two short periods to assess mooring deployment locations. Mooring deployment site surveys carried out with the EM710 MKII were in the vicinity of the Antarctic shelf-break region with locations of approx. 66°57.2'S, 75°00.5'E &amp; 66°32'S, 62°13'E.

The EM710 MKII provides a 0.5° by 1° transmit and receive angular resolution respectively. The echosounder's nominal frequency range is from 40 to 100 kHz.

Data are stored in <em>.all raw format for bathymetry and backscatter and </em>.wcd format for watercolumn backscatter at CSIRO. There are 47 files totalling 15.82GB of raw data in this dataset.

Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position.

The data have been reduced to approximate Mean Sea Level (MSL) using the Earth Gravitation Model 2008 (EGM2008) 1 arc-minute grid. Tide corrections were not applied to the processed data. Processed data has had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format.

Additional information regarding this dataset, including further information on processing streams, is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

Organization: Australian Ocean Data Network
SUPERSEDED: eReefs GBR4 Biogeochemical model data - Version 2.0 Catchment Real Time

SUPERSEDED: This dataset has been superseeded by GBR4_H2p0_B3p0_Chyd_Dcrt (2010-12 to 2018-10) and then by GBR4_H2p0_B3p1_Cq3b_Dhnd (2010-12 to 2019-04) and it was removed from the NCI fx3 project and THREDDS server in April 2024.  An archive copy has been retained by the custodians, and access can be arranged on request.

4km-resolution Biogeochemical model version 2.0, forced by version 2 of the Hydrodynamic model and <code>best available forcing</code>¹, deployed as <code>catchment real time</code> (6 month lag for SOURCE Catchments model).

¹ best available forcing:
○ 2011-06-30 to 2014-06-30: P2R SOURCE Catchments;
○ 2014-07-01 to 2016-10-30: Empirical SOURCE Catchments;
○ 2016-10-31 onwards: Furnas relationships for wet and dry tropics rivers.

Organization: Australian Ocean Data Network
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, St Helens, eastern Tasmania

The spatial extent of C. rodgersii "barrens" was estimated by surveying rocky reef habitat with a towed underwater video system. Sampling took place at 13 regions along the east coast of Tasmania, each comprising 3 subsites, this dataset refers to the St Helens region, and its 3 subsites: Binalong Bay, St Helens Island and St Helens Point

Tags: 25 211001, Algal coverage, Centrostephanus rodgersii, Substratum type, Temperate Reef, Urchin barren coverage
Organization: Australian Ocean Data Network
Responses of Southern Ocean Seafloor Habitats and Communities to Global and Local Drivers of Change

Our knowledge of life at the Antarctic sea-bed has increased in the past decades with increasing ship-based surveys and monitoring sites, new technologies and data sharing. However, seafloor habitats and their communities exhibit high spatial variability and heterogeneity that limits our ability to assess the state of the Southern Ocean benthos on larger scales. The seafloor communities that inhabit the Antarctic shelf are often diversity hotspots. These habitats are important in the generation of ‘blue carbon’ and habitat for commercial fish species, for this reason we focus on these habitats. Many Southern Ocean seafloor habitats and their communities seem to be especially vulnerable to certain drivers of change including increasing ocean temperatures, iceberg scour, sea-ice melt, ocean acidification, fishing pressures, pollution and non-indigenous species. Some of the most vulnerable areas include those experiencing rapid regional warming and increased iceberg-scouring e.g. the West Antarctic Peninsula; where human activities and environmental conditions increase the potential for the establishment of non-indigenous species e.g. sub-Antarctic islands and tourist destinations and areas with fishing activities e.g. around South Georgia, Heard and MacDonald Islands.  Vulnerable species include calcifying species susceptible to increasing ocean acidity as well as slow-growing habitat forming species that can be damaged by fishing gears e.g. sponges, bryozoan and coral species. Management regimes can protect seafloor habitats and key species from fishing activities but only if they consider specific traits, such as longevity, food availability, their physiological adaptation and rare or common occurrences. Ecosystem-based management practices and long-term protected areas may be the most effective in the preservation of vulnerable seafloor habitats. However, action is needed to reduce carbon emissions to limit the impact of increasing ocean temperatures and ocean acidification. We focus on outlining seafloor responses to drivers of change observed to date and projections for the future. We discuss the need for action to preserve seafloor habitats under climate change and fishing pressures.

<b>Citation:</b> Brasier MJ, Barnes D, Bax N, Brandt A, Christianson AB, Constable AJ, Downey R, Figuerola B, Griffiths H, Gutt J, Lockhart S, Morley SA, Post AL, Van de Putte A, Saeedi H, Stark JS, Sumner M and Waller CL (2021) Responses of Southern Ocean Seafloor Habitats and Communities to Global and Local Drivers of Change. <i>Front. Mar. Sci.</i> 8:622721. 
doi: 10.3389/fmars.2021.622721

Tags: Antarctica, BIOLOGICAL SCIENCES, EARTH SCIENCES, ENVIRONMENTAL SCIENCES, Ecological Impacts of Climate Change, Published_External, Southern Ocean, benthos, fishing, marine protected areas, vulnerable marine ecosystems
Organization: Australian Ocean Data Network