AndreaBozzo/ceres-open-data-index huggingface dataset:
Australia's Maritime Jurisdiction around Heard Island and McDonald Islands - Lambert projection

Map showing Australia's Maritime Jurisdiction around Heard Island and McDonald Islands, including a portion of the AAT.
Lambert Conformal Conic Projection, WGS84 Datum, Central Meridian 76Â°E, Standard parallels 50Â° and 65Â°S.
One of the 27 constituent maps of the "Australia's Maritime Jurisdiction Map Series" (GeoCat 71789).
Depicting Australia's extended continental shelf approved by the Commission on the Limits of the Continental Shelf in April 2008, treaties and various maritime zones.  Background bathymetric image is derived from a grid by Smith and Sandwell, 1997. Background land imagery derived from Blue Marble, NASA's Earth Observatory.
A0 sized .pdf downloadable from the web.

Tags: Administrative Boundary, Earth Sciences, Published_External, Thematic Map, administrative boundaries, bathymetry, continental shelf, marine, marine jurisdiction
Organization: Australian Ocean Data Network
Port Fairy Wave Energy Bathymetry 2015 (4495/20150035S)

The Port Fairy Wave Energy bathymetry survey was acquired by Deakin University onboard the Motor Vessel Yolla over two days in 2015 (14/10/2015-15/10/2015) using a Kongsberg EM2040c.

Not to be used for navigational purposes

Tags: AusSeabed, Australia-wide geoscience data, Bathymetry, EARTH SCIENCES, Great Australian Bight, MV Yolla, Marine, Offshore Mapping, Published_External, Resourcing Australia's Prosperity, multi-beam echosounders
Organization: Australian Ocean Data Network
Darwin Harbour Habitat Mapping Program: Predicted seabed mud content

This resource contains a predicted seabed mud content grid for the greater Darwin Harbour region as part of a baseline seabed mapping program of Darwin Harbour and Bynoe Harbour. This project was funded through offset funds provided by an INPEX-led Ichthys LNG Project to the Northern Territory Government's Department of Environment and Natural Resources (NTG-DENR) with co-investment from Geoscience Australia (GA) and the Australian Institute of Marine Science (AIMS). The intent of this program is to improve knowledge of the marine environments in the Darwin and Bynoe Harbour regions by collating and collecting baseline data that enable the creation of thematic habitat maps and information to underpin marine resource management decisions. The predicted seabed mud content grid was derived from a compilation of multiple surveys undertaken by GA, AIMS and NTG-DENR between 2011 and 2017, including GA0333 (Siwabessy et al., 2015), GA0341 (Siwabessy et al., 2015), GA0351/SOL6187 (Siwabessy et al., 2016), GA4452/SOL6432 (Siwabessy et al., 2017), GA0356 (Radke et al., 2017), and GA0358 and GA0359 (Radke et al., 2018), adding to those from a previous survey GA0333 collected by GA, AIMS and NTG-DENR. This dataset provides spatially continuous predictions of seabed %mud (&lt; 63 µm) content for the Darwin and Bynoe harbour region, northern Australian marine margin. Data are presented in 10 m resolution raster grids format and ascii text file. Predictions are based on 395 samples and nine environmental variables derived from high resolution multibeam sonar bathymetry and backscatter data. Accuracy of predictions is very high, with a VEcv = 62% for mud; and the predictive accuracy has been increased by 198.3% for mud in comparison with the commonly used method (i.e., IDW). Absences in predictions occur in this dataset as a result of non-availability associated with predictive variables. This dataset supersedes previous predictions of mud content for the Darwin and Bynoe harbour region with demonstrated improvements in predictive accuracy.

Tags: Darwin Harbour, Habitat Mapping, Published_External, mud content, seabed
Organization: Australian Ocean Data Network
Outer Darwin Harbour Shallow Water Sediment Survey 2016: GA0356 - Post-survey report

A benthic sediment sampling survey (GA0356) to the nearshore areas of outer Darwin Harbour was undertaken in the period from 03 July to 14 September 2016. Partners involved in the survey included Geoscience Australia (GA), the Australian Institute of Marine Science (AIMS) and the Department of Environment and Natural Resources within the Northern Territory Government (NT DENR) (formerly the Department of Land and Resource Management (DLRM)). This survey forms part of a four year (2014-2018) science program aimed at improving knowledge about the marine environments in the regions around Darwin and Bynoe Harbours through the collection and collation of baseline data that will enable the creation of thematic habitat maps to underpin marine resource management decisions.  This project is being led by the Northern Territory Government and is supported by the INPEX-led Ichthys LNG Project, in collaboration with - and co-investment from GA and AIMS. The program builds upon an NT Government project (2011-2011) which saw the collection of baseline data (multibeam echosounder data, sediment samples and video transects) from inner Darwin Harbour (Siwabessy et al. 2015).
Here we present an account of the field methods and data summaries (location maps and comprehensive metadata) for the collection of 200 seabed sediment samples designated for grain size and inorganic elemental analyses, and organic matter concentration, source and reactivity measures. Metadata is also provided for seagrass observations and hardground occurrences. The seagrass observation data will be incorporated into DENR's seagrass database. 
The baseline environmental datasets acquired during this survey will be merged with like datasets from three other surveys conducted as part of the overall project to create a set of interpolated maps of abiotic parameters with full coverage for the region. Some of the maps will be integrated into final habitat mapping products. Baseline data from the survey will also be made publically available via the Geoscience Australia website (http://www.ga.gov.au/).

Tags: Earth Sciences, Published_External, geochemistry, marine survey, seabed, sediment, sedimentology
Organization: Australian Ocean Data Network
Evidence of an exhalative origin for deposits of the Cobar district, New South Wales

Evidence is presented to show that a strong mineralogical/chemical zoning exists in seven deposits of the Cobar-Nymagee area. Characteristically, the within-deposit zoning, perpendicular to bedding, consists of a siliceous chalcopyrite-pyrrhotite eastern side with diffuse contacts against adjacent siltstone-shale host rocks, and a relatively massive sulphide, banded, pyrite-sphalerite-galena western side with sharp contacts against host rocks. Features such as these are typical of those in exhalative deposits in volcanic terrain and are taken here to indicate a similar origin in this essentially non-volcanic environment. The deposits are contained in distal turbidite facies of the Devonian Cobar Supergroup, deposited in a meridional trough bounded on its eastern flank by a possible penecontemporaneous growth fault separating the trough from an adjacent shelf area on which were deposited shallow-water marine sediments and terrestrial and marine volcanics. This volcanism and the Cobar sedimentary-exhalative deposits may be related through rifting in the area which produced the proposed growth faults and the subsequent Cobar Trough. The deposits, now in 20Â° discordancy to bedding, are considered to have been transposed into the prominent regional cleavage during post-ore deformation. Using the syn-sedimentary exhalative concept, two mineralised horizons and a possible tight syncline may be recognised in the CSA mine.

Tags: Earth Sciences, GA Publication, Journal, NSW, Published_External
Organization: Australian Ocean Data Network
Growth fabrics and growth rates of Holocene reefs in the Great Barrier Reef

Over the past five years, scientists of the Bureau of Mineral Resources and James Cook University of North Queensland have drilled 61 holes into 24 reefs throughout the Great Barrier Reef Province between 15Â°30S and 25Â°50S.  Eleven holes penetrated to the Pleistocene and nearly 250 radiocarbon dates have been recorded.  Analysis of drill-hole core has delineated five major biosedimentologic facies - coralline algal facies. coral-head framework facies, branching-coral framework facies, detrital carbonate facies, and detrital siliciclastic facies.  Latitudinal uniformity in framework facies contrasts markedly with major regional variations in detrital facies, the reefs of the mid-shelf of the central region being dominated by clastic carbonates. Depositional rates of detrital carbonate facies vary between 1-4 m/1000 yr for sand flat progradation , 7-9 m/1000 yr for trade wind storm sedimentation, and 13-18 m/1000 yr for high-energy low-frequency events.  Framework growth rates varv from 1- 16 m/1000yr with low rates (2 m/I000 yr) for coralline algae. intermediate rates (up to 7 ml 1000 yr) for coral head facies, and high rates (up to 16 m/lOOO yr) for branching frameworks. Rates of 8-12 m/1000 yr occur in all environments: modes of 7-8 m/1000 yr typify patch reefs , 4-6 m/1000 yr typify windward margins. and 3-9 m/1000 yr typify leeward margins. Fringing reefs usually grow at rates of 1-4 m/1000 yr and are dominated by coral-head facies. Depth to the Pleistocene is generally greater in the central region compared to the northern and southern reefs: reef initiation, however, began at the same time throughout the province (8-9000 yr B. P.).  Initial reef growth lagged significantly behind sea-level rise, such that water depths of up to 12 m developed over reef surfaces prior to sea-level stabilisation. However, some reefs in the southern region exhibit no growth lag - initial colonisation and growth maintaining pace with sea-level rise. The growth rate of most reefs decreased markedly as reef surfaces approached stabilised sea level.

Tags: Earth Sciences, GA Publication, Journal, Published_External, QLD, marine
Organization: Australian Ocean Data Network
Fast Repetition Rate Fluorometry (FRRF) data collected on the RV L'Astrolabe from 28/10/2007 to 01/11/2007 (Hobart - Dumont d'Urville)

These data were collected on the RV L'Astrolabe (platform code: FHZI) from 28/10/2007 to 01/11/2007 on a trip from Hobart to Dumont D'Urville.

Maximum photochemical efficiency of photosystem II (PSII), also called maximum quantum yield of PSII (Fv/Fm), has become one of the most widely utilized fluorescence parameters in phytoplankton research. It represents the potential photochemical efficiency, which is the probability that the light energy captured by the photosynthetic apparatus is being utilized as photochemistry. Fv/Fm has been shown to have an instant response to variations in physical and chemical properties and is interpreted as a diagnostic of the overall health or competence of phytoplankton. Together with the absorption cross section area of PSII and chlorophyll concentration, it can be used to measure primary production (Cheah et al. 2011, Deep Sea Research).

Seawater from 3 m depth was supplied continuously from the ship’s clean seawater line. FRR fluorescence yields were measured continuously at 1 minute intervals in dark-adapted state (! 15 minutes dark-adaptation) using a flash sequence consisting of a series of 100 subsaturation flashlets (1.1 μs flash duration and 2.8 μs interflash period) and a series of 20 relaxation flashlets (1.1 μs flash duration and 51.6 μs interflash period).

Tags: Continents | Antarctica, Countries | Australia, Fast Repetition Rate Fluorometer (FRRF), Global/Oceans | Southern Ocean, Instrument's photomultiplier electronic sensitivity (1-256), Latitude, Longitude, Maximum quantum yield (Fv/Fm), Minimum fluorescence in the light chamber of the FRRF (also used as a proxy for biomass), Oceans | Ocean Temperature | Sea Surface Temperature, Oceans | Salinity/density | Salinity, Photosynthesis, connectivity between PSII reaction centres under actinic light, functional absorption cross section of PSII (measure of the proportion of light harvested for photoc, maximum fluorescence in the light chamber of the FRRF, maximum quantum yield of photosystem II ( (FmL - FoL) / FmL), primary production, time constant of electron transport from PSII to PSI, variable fluorescence (FmL - FoL)
Organization: Australian Ocean Data Network
RV Investigator Voyage IN2026_V02 Hydrology Data

This record describes Hydrology (HYD) data collected from the Marine National Facility (MNF) RV Investigator voyage IN2026_V02, titled: "Quantifying the fine scale ocean dynamics of the Ningaloo Coast." The voyage took place between March 17, 2026 and April 17, 2026 (AEST), departing from Fremantle and returning to Fremantle.

Hydrology samples were collected from Niskin bottles sampled at various depths during Conductivity-Temperature-Depth (CTD) deployments. Parameters analysed were salinity, dissolved oxygen, phosphate, silicate, nitrate plus nitrite and ammonium.

This dataset has been processed (quality-controlled), and archived at the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart. Additional information regarding this dataset is contained in the Voyage Report and Data Processing Report.

Organization: Australian Ocean Data Network
Seafloor bathymetry of the Gifford Marine Park

Flythrough movie of Gifford Marine Park, which is located 700 km east of Brisbane, Australia. The park is situated about halfway along the Lord Howe Rise seamount chain on the western flank of the Lord Howe Rise. Seamounts along this chain formed from Miocene volcanism via a migrating magma source (“hotspot”) after the opening of the Tasman Sea. Two large, flat-topped volcanic seamounts dominate the park. Their gently sloping summits have accumulated veneers of sediment, which in places have formed fields of bedforms. Steep cliffs, debris and large mass movement scars encircle each seamount, and contrast with the lower gradient abyssal plains from which they rise. Spanning over 3 km of ocean depths, the seamounts are likely to serve multiple and important roles as breeding locations, resting areas, navigational landmarks or supplementary feeding grounds for some cetaceans (e.g. humpback whales, sperm whales). They may also act as important aggregation points for other highly migratory pelagic species. The bathymetry shown here was collected on two surveys - the first in 2007 by Geoscience Australia and the second in 2017 by Geoscience Australia in collaboration with the Japan Agency for Marine-Earth Science and Technology. The Gifford Marine Park has also been the focus of a study undertaken by the Marine Biodiversity Hub as part of the 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
Source Rock Distributions and Petroleum Fluid Bulk Compositional Predictions on the Vulcan Sub-basin, Offshore Western Australia

Several scenarios of an original 3D model based on the petroleum systems model of Fuji et al. (APPEA 2004) were simulated using the PetroMod 3D V.10 modeling software.
In general the results of the modelling study presented here confirms the modelling results of Fuji et al. (2004) with respect to the timing of generation in the different sub-basins as well as present day maturity. The main differences between the work of Fuji et al. (2004) and the work presented here are based on the use of PhaseKinetic models for the individual source rock formations and the ensuing compositional predictions of the fluids in different fields.
Source rock transformation ratios as well as the bulk generation rates indicate that the source rocks are presently still generating. The Central Swan Graben area is presently more mature than the other kitchen area of the Vulcan Sub-basin, the Cartier Trough.
The locations of predicted accumulations coincide with the locations of most of the proven fields. In many cases accumulation sizes and predicted column heights are large, mainly due to the fact that the resolution of the numerical model is low which leaves rather large volumes of the cells to be filled.
Modelling results predict a series of accumulations at locations which have, as yet, not been tested. However, most of them depend on fault closure, thus increasing exploration risk.
The main risks as observed from this modelling exercise are:
1)  source rock presence and definition,
2)  definition of the traps,
3)  resolution of the input model, 
4)  cap rock properties, which are still largely unconstrained.
The different scenarios modelled show distinct variations with respect to predicted petroleum distribution as well as the physical properties of the accumulated fluids.

Tags: 3D model, AU-WA, Earth Sciences, Published_External, Report, geochemical modelling, hydrocarbons, marine, petroleum geology
Organization: Australian Ocean Data Network
eReefs GBR4 river tracers v2.0

Passive river tracer results derived from version 2.0 of the 4km-resolution regional-scale hydrodynamic model of the Great Barrier Reef (GBR4).

This model configuration and associated results dataset may be referred to as "GBR4_H2p0_Rivers" according to the eReefs simulation naming protocol.

The model ran in near-real-time mode, updating daily, until January 2024 when the 2023/24 monsoon season caused damage to sensors in the catchments, and we lost access to the critical river-flow forcing dataset.

Organization: Australian Ocean Data Network
National Gravity Compilation 2019 CSCBA image

Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. 
This National Gravity Compilation 2019 CSCBA image is an image derived from the 2019 Australian National Gravity Grids A series. These gravity data were acquired under the project No. 202008. The grid used to produce this image has a cell size of 0.00417 degrees (approximately 435m). The data are given in units of um/s^2, also known as 'gravity units', or gu. This gravity anomaly grid is derived from ground observations stored in the Australian National Gravity Database (ANGD) as at September 2019, supplemented by offshore data sourced from v28.1 of the Global Gravity grid developed using data from the Scripps Institution of Oceanography, the National Oceanic and Atmospheric Administration (NOAA), and National Geospatial-Intelligence Agency (NGA) at Scripps Institution of Oceanography, University of California San Diego. Out of the approximately 1.8 million gravity observations, nearly 1.4 million gravity stations in the ANGD, and marine data were used to generate this grid. The ground gravity data used in this grid has been acquired by the Commonwealth, State and Territory Governments, the mining and exploration industry, universities and research organisations from the 1940's to the present day. Station spacing varies from approximately 11 km down to less than 1 km, with major parts of the continent having station spacing between 2.5 and 7 km. Airborne surveys have a line spacing ranging from 0.5 km to 2.5 km. The image shows complete Bouguer anomalies (A series) over Australia and its continental margins. Terrain corrections to gravity were calculated using both offshore bathymetry and onshore topography data.

Tags: A series, Australia, Bouguer, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, None, Published_External, complete, digital data, geophysical survey, geophysics, grav, gravity, image, national, raster, spherical cap, survey 202008
Organization: Australian Ocean Data Network
Geomorphology and Sediment Transport in Keppel Bay, Central Queensland, Australia

Keppel Bay is a macrotidal environment that represents the interface of the large catchment of the Fitzroy River with the southern GBR continental shelf. In this study, we assessed the distribution of sediments and their depositional characteristics using a combination of sediment sampling, and acoustic (sonar) seabed mapping tools. Using statistical techniques, we classified the seabed sediments of Keppel Bay into five distinct classes, based on sediment grainsize, chemical composition, and modelled seabed hear stress (the influence of waves and tidal currents).

Tags: AU-QLD, Earth Sciences, External Publication, Published_External, Report, coasts, geomorphology, marine, sedimentology
Organization: Australian Ocean Data Network
An Appraisal of Petroleum Exploration Title Areas - Offshore and Central Queensland May 1974

This record is the result of a brief examination of data relevant to the titles areas. All available data have been used in its preparation, including confidential company reports, but no original interpretation has been made.

Summaries are given of the regional geology, hydrocarbon potential, geophysical activity and drilling results. Assessments have been made of the prospectivity of the title areas, and recommendations are made for further exploration.

Because of the moratorium on exploration on the Great Barrier Reef, only scientific surveys have been carried out since 1969 and no wells have been drilled.

Aeromagnetic. and the small amount of reconnaissance seismic work carried out prior to the moratorium indicate the continental shelf is covered by a thin veneer of sediments with several ill-defined basinal depressions. These sediments are generally thought to be of Tertiary and Mesozoic age. Prospects for hydrocarbon accumulations within the existing title areas are rated as low.

An area in the southeastern part of the Gulf of Papua outside the present title areas is considered to have the best prospects.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, marine
Organization: Australian Ocean Data Network