AndreaBozzo/ceres-open-data-index huggingface dataset:
National Gravity Compilation 2019 - CSCBA 0.5VD 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 0.5VD image is derived from the 2019 Australian National Gravity Grids A series. These gravity data were acquired under the project No. 202008. The grid has a cell size of 0.00417 degrees (approximately 435m). 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 together with Airborne Gravity surveys totaling 345,000 line km and 106,000 line km of Airborne Gravity Gradiometry 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. Terrain corrections to gravity were calculated using both offshore bathymetry and onshore topography data. The grid shows a half vertical derivative of the complete Bouguer anomalies (A series) over Australia and its continental margins. A half vertical derivative was calculated by applying a fast Fourier transform (FFT) process to the complete spherical cap Bouguer anomaly grid of the 2019 Australian National Gravity Grids A series.

Tags: 05vd, A series, Australia, Bouguer, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, None, Published_External, complete, geophysical survey, geophysics, grav, gravity, ground digital data, half vertical derivative, image, marine, raster, satellite, spherical cap, survey 202008
Organization: Australian Ocean Data Network
Geoscience Australia's Southwest Margin Geophysical Surveys

The Australian Government's five year (2006-2011) Offshore Energy Security Program aims to encourage the discovery of new hydrocarbon resources in Australia's vast offshore frontier areas through the provision of pre-competitive data and information. One priority region, identified in consultation with the petroleum exploration industry and the respective State and Northern Territory geological surveys, is the southwestern continental margin of Australia. Geoscience Australia's Southwest Margin Project is investigating the petroleum potential of sedimentary basins located on the continental margin extending from Cape Range to Cape Leeuwin. Primary areas of interest include the Perth and Mentelle basins. Other areas of interest include the southern Exmouth Sub-basin (Northern Carnarvon Basin), the offshore Southern Carnarvon Basin and the Wallaby Plateau. The main aims of the Southwest Margin Project are to provide pre-competitive regional information to underpin opportunities for the discovery of a new hydrocarbon province, to support promotion of selected areas for petroleum exploration, to enhance our understanding of petroleum potential and aspects of exploration risk and to inform future marine planning.

Citation: Bowen, E., &amp; Bradshaw, B. (2009). Geoscience australia’s southwest margin geophysical surveys. ASEG Extended Abstracts, 2009(1), 1–7. https://doi.org/10.1071/ASEG2009ab018

Tags: Conference Paper, Earth Sciences, External Publication, Published_External, petroleum prospectivity, potential fields, seismic reflection, southwest Australian margin
Organization: Australian Ocean Data Network
Kirby's Hill and Tyldesley - Ben Bullen area, Western Coalfield: results of scout drilling

This statement gives the results of a scout drilling campaign conducted by the Bureau at the Kirby's Hill Area of the Western Coalfield of New South Wales. The area investigated comprises approximately 200 acres of the parish of Cullen Bullen in the County of Roxburgh. At Kirby's Hill itself a maximum of about 300 feet of Coal Measure rocks rests on Upper Marine beds, and this is one of the most westerly exposures of the Upper Coal measures. The purpose of scout drilling was to determine the suitability of the Lithgow and Irondale Seams for open cut exploitation.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, commodities, mineral deposits, resource assessment, rock properties
Organization: Australian Ocean Data Network
The Late Triassic molluscs, conodonts, and brachiopods of the Kuta Formation, Papua New Guinea

The Kuta Formation is mainly a limestone deposit which crops out on the flanks of the Kubor Anticline in the Central Highlands of Papua New Guinea. It has been variously regarded as Cainozoic, Permian and Permo-Triassic in age, but is now positively dated as late Norian or Rhaetian (Late Triassic) on the basic of conodonts, molluscs and brachiopods. The Kuta Formation is thus the youngest known Triassic formation in Papua New Guinea. Interpretation of the local stratigraphy is simplified by this dating. It is now apparent that the marine Triassic sedimentation in Papua New Guinea commenced no later than the Anisian (Middle Triassic) and continued, probably uninterrupted, until Rhaetian time. The fossils identified and described include the conodont Misikella posthernsteini Kozur and Mock, 1974, the ammonite Arcestes (Arcestes) cf. sundaicus, Welter, 1914, and some bivalves. The brachiopods Clavigera, Zugmeyerella, Sinucosta, Robinsonella, ?Hagabirhynchia are equally important in dating the assemblage, but will be described in detail separately. All the more closely identified fossils have a Tethyan Provincial aspect except Clavigera which was previously known only from New Zealand and New Caledonia.

Tags: Earth Sciences, GA Publication, Journal, PNG, Published_External
Organization: Australian Ocean Data Network
Australian Petroleum Systems. Roebuck and Offshore Canning Basins - Beagle Sub-basin module

This module is part of the AGSO-APIRA Australian Petroleum Systems Project. 
Eight basin modules were examined which covered almost the entire North West Shelf, the Petrel Sub-basiTn, as well as the Papuan basin in PNG. 
Two relational databases were established containing the biostratigraphic data (STRATDAT) and reservoir, facies and hydrocarbon shows data (RESFACS). These databases were linked by application programs which allow time series searching using geologically intelligent routines. 
Petroleum systems analyses were conducted on each area, with key results focussing upon the comparison of source quality and timing of generation between similar systems in different areas.

Tags: AU-PG, AU-WA, Earth Sciences, GA Publication, Published_External, Record, marine, petroleum exploration
Organization: Australian Ocean Data Network
Forster (Cape Hawke to Black Head), NSW Bathymetry Acquisition (20190018S)

The Forster, Cape Hawke to Black Head, bathymetry survey was acquired by the NSW government (Department of Planning and Environment – DPE) onboard the RV Bombora during the period 27 Feb 2019 – 14 Oct 2020, using DPE’s R2Sonic 2022 multibeam sonar. The survey was completed as part of the SeabedNSW program funded by NSW government through Coastal Reforms (&gt;2015), HabMap Program funded through Marine Parks Authority (now under Marine Estate Management Authority) or through collaborations with partner agencies or institutions. The purpose of the project was to 1) provide a baseline dataset and 2) map the spatial distribution of seabed types.  This dataset contains 32-bit floating point geotiff files of bathymetry and backscatter in 5m resolution for the study area, derived from the processed Hypack, R2Sonic GUI, POSView, POSPac, Qimera and FMGT software. General details on vessel setup, mobilisation and processing are provided at https://www.environment.nsw.gov.au/-/media/OEH/Corporate-Site/Documents/Research/Our-science-and-research/seabed-nsw-standard-operating-procedures-multibeam-surveying-190101.pdf with survey specific details in the Survey Report and DPIE Rigor Statement (can be provided upon request).

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, Oceans, Offshore Mapping, Published_External, Resourcing Australia's Prosperity, bathymetric grids, bathymetry
Organization: Australian Ocean Data Network
Report on 1960 collections of Mesozoic plant fossils from the Northern Territory

This record describes Mesozoic plant fossils collected in 1960 by S. K. Skwarko from thirteen localities in the Northern Territory. The plant fossil localities were closely associated with marine faunal localities and it may shortly be possible to date the plant horizons accurately when determinations of fauna have been made.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record
Organization: Australian Ocean Data Network
Australian Fisheries Enforcement Zones - Front (English)

This map is produced for the Australian Fisheries Management Authority to assist their enforcement of Australia's Maritime Boundaries. It has lots of icons to explain to Indonesian fishermen where they can and cannot fish in the Timor and Arafura Seas.

Originally produced using the Indonesian language. This version is an English translation.

It is not for sale or public release by Geoscience Australia. Public release is thru DEH and AFMA.

Updated in 2019 to reflect the 2018 Australia/Timor-Leste Maritime Boundaries Treaty

Tags: Administrative Boundary, Earth Sciences, Published_External, Thematic Map, marine
Organization: Australian Ocean Data Network
Submerged banks in the Great Barrier Reef, Australia, greatly increase available coral reef habitat

Anthropogenic global ocean warming is predicted to cause bleaching of many near-sea-surface (NSS) coral reefs, placing increased importance on deeper reef habitats to maintain coral reef biodiversity and ecosystem function. However, the location and spatial extent of many deep reef habitats is poorly known. The question arises: how common are deep reef habitats in comparison with NSS reefs? We used a dataset from the Great Barrier Reef (GBR) to show that only about 39% of available seabed on submerged banks is capped by NSS coral reefs (16 110 km2); the other 61% of bank area (25 600 km2) is submerged at a mean depth of around 27 m and represents potential deep reef habitat that is spatially distributed along the GBR continental shelf in the same latitudinal distribution as NSS reefs. Out of 25 600 km2 of submerged bank area, predictive habitat modelling indicates that more than half (around 14 000 km2) is suitable habitat for coral communities.

Citation: Peter T. Harris, P. T., Bridge, T. C. L., Beaman, R. J., Webster, J. M., Nichol, S. L., and Brooke, B. P. 2013. Submerged banks in the Great Barrier Reef, Australia, greatly increase available coral reef habitat. – ICES Journal of Marine Science, 70: 284–293.
https://doi.org/10.1093/icesjms/fss165

Tags: AU-QLD, Earth Sciences, External Publication, Great Barrier Reef, Published_Internal, Scientific Journal Paper, benthic habitats, biodiversity, mesophotic, refugia, submerged banks
Organization: Australian Ocean Data Network
Port Curtis Integrated Monitoring Program - Sediment Quality

PCIMP monitors across 15 sampling zones (54 water sites) in Port Curtis to assess the water quality and health of Port Curtis, with sites ranging from the Narrows in the north to Colosseum Inlet in the south. Included in the zones are sites within the State and Great Barrier Reef Marine Park zones.Surface sediment is sampled yearly at each of the 54 water sites. Sediment samples are taken to measure the concentrations of metal, metalloid and nutrients and particle size distribution within Port Curtis. The quality of the data is assured by analysing duplicate and triplicate samples from a number of sites and the analysis is performed by a National Association of Testing Authorities (NATA) accredited laboratory.

Organization: Australian Ocean Data Network
Pattern of slow seafloor spreading (<4 mm/year) from breakup (96 Ma) to A20 (44.5 Ma) off the southern margin of Australia

Australia separated from Antarctica by continental extension between the mid-Jurassic (&gt;160 Ma) and mid-Cretaceous (96 Ma), then by slow seafloor spreading (half-rate &lt; 4.4 mm/ year) on a separation azimuth of 335Â° until A21 time (49 Ma), at an intermediate half-rate (10 mm/ year) until A20 time (44.5 Ma), and then at a fast rate (20 mm/ year) on a separation azimuth of 360o to the present.  A compilation of seafloor spreading magnetic data for the entire southern margin, including critical data collected during the cruise of the R/ V Rig Seismic in 1986, confirms the previous work except for the re-interpretation of the oldest anomalies. The phase of slow spreading is characterised by (a) jumps of the spreading ridge to Australia between 131.25Â° E and Tasmania to accommodate the southeastward offset of the line  of separation between Tasmania and Antarctica, and (b) variable azimuths of spreading isochrons within individual spreading segments, as, for example, from 090oÂ±5Â° between 129Â° and 130oE (an angle of 65Â° between separation and spreading azimuths) and 075Â° and 080Â° between 130Â° and 131.75Â°E (an almost orthogonal 80Â°). The variable azimuth of the spreading isochrons, oblique to the separation azimuth, is similar to that found in the young (&lt;5 Ma) slow spreading (half-rate 10 mm/ year) ocean basin of the Gulf of Aden, and is interpreted as the response of a slow spreading system to confinement between continental margins whose boundaries are oblique to the separation azimuth.

Tags: Earth Sciences, GA Publication, Journal, Published_External, marine
Organization: Australian Ocean Data Network
RV Investigator Voyage IN2023_V02 ADCP Data

This record describes the Acoustic Doppler Current Profiler (ADCP) data collected from the Marine National Facility RV Investigator voyage IN2023_V02, titled: "Gigantic submarine landslide offshore western Tasmania: risk mitigation for shelf-derived tsunami in Australia." The voyage took place between March 24, 2023 and April 30, 2023 (AEST), departing from Hobart and returning to Hobart.

Investigations into the OS75 kHz ADCP fault were conducted at the start of the voyage in an attempt to operate the instrument at a reduced capacity and to assist with further diagnosis of the fault from works completed in the port period.

ADCP data were collected using the University of Hawaii Data Acquisition System (UHDAS) and post-processed using the Common Ocean Data Access System (CODAS). Documentation for these systems can be found in (Hummon, 2009-2021).

Both the RDI Ocean Surveyor 150kHz ADCP and the RDI Ocean Surveyor 75kHz ADCP were run in narrowband mode.

Internal triggering was used.

The drop keel (port) is located approximately 6.0m below the water line, additionally the keel was extended by 2.0m for the entire duration of the voyage, subsequently the transducers were located approximately 8.0m below the water line.

NOTE: the OS75nb "part1" data were missing or not useful so they were excluded from the downloadable links below.

For more information please see the Processing Report (linked below).

This dataset was processed (quality-controlled), and then archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).

Organization: Australian Ocean Data Network
Long-term landscape evolution on Groote Eylandt, Northern Territory

Like other areas throughout the north of the Northern Territory, Groote Eylandt is dominated by a landscape of great age.  Previous interpretations have argued that this landscape experienced repeated cycles of uplift and erosion during the Tertiary.  This view is challenged by the evidence of two palaeovalleys which traverse the island ; both are filled with Cretaceous sedimentary rocks and are incised into a plateau surface of supposedly Miocene age.  The Cretaceous marine transgression was the most important event in the long-term landscape history of Groote Eylandt.  The resulting raised base-level, and the associated sedimentary infilling of valleys, lifted streams from their existing valleys, and promoted the development of a new stream network, which has persisted till the present.  Apart from the obvious drainage alterations, no other significant modifications to the Groote Eylandt landscape have occurred since at least the late Mesozoic: an escarpment traversing the island has retreated less than 500 m since this time, and the upland plateau and surrounding lowland plains of pre-Cretaceous age have maintained their general form.

Tags: Earth Sciences, GA Publication, Journal, NT, Published_External
Organization: Australian Ocean Data Network
BRUVS (TM) - Fish and Benthic survey of Hicks Island 2002-06-23 to 2002-06-28

The dataset comprises 170 individuals from 47 species of fishes, sharks, rays and sea snakes observed at around Hicks Island using 8 baited remote underwater video stations (BRUVS(TM)). 14 images were captured from these cameras.

Approximately 3500 of the best images from all BRUVS (TM) projects are stored in a reference library.

Data recorded concern:
- classification of the habitat in the field of view (topography, sediments, benthos)
- the identity of fish and CAABCODES
- their time of arrival
- their behaviour (8 categories, including feeding on the bait)
- their maturity (adult or juvenile)
- their relative abundance (as MaxN = the maximum number visible at one time, or distinguishable at different times as separate individuals e.g. much larger/smaller, male/female)
- the time elapsed before MaxN and feeding occurs.

A custom interface has been developed by AIMS staff, using Microsoft Access, for reading and analysis of BRUVS(TM) tapes.

Organization: Australian Ocean Data Network
Aquatic Substrate Library - SW West Australia 2008

Record for source data hosted in the National Spectral Database (NSD) Aquatic Library

Citation: 
Botha, E.J., Dekker, A.G., and Park, Y.J. (2009) Remote sensing of previously unmapped marine habitats on the south coast of Western Australia; National Research Flagship Wealth from Oceans Report to WA-DEC, WA South Coast NRM, WA South West Catchments Council. Canberra, Australia, pp: 53. https://doi.org/10.3390/rs12142247

For further information and instructions to access the database go to the following URL:
https://cmi.ga.gov.au/data-products/dea/643/australian-national-spectral-database

Tags: Aquatic Substrate Library, Australian National Spectral Database (NSD), Australian spectral data, EARTH SCIENCES, End-member studies, Field spectroscopy, HVC_144490, NSD Source Dataset, Published_External, Remote sensing
Organization: Australian Ocean Data Network
Kimberley Region and WA Reefs Satellite-Derived Bathymetry Acquisition (20220090C)

The Kimberley Region and WA Reefs Bathymetry was derived by EOMAP form multispectral satellite data from the European Space Agency’s Sentinel-2 satellite sensor. EOMAP was contracted by Geoscience Australia (GA) to provide high-resolution (10m) Satellite-Derived Bathymetry (SDB) for the Priority Australian Seabed Mapping Sites. The survey area encompasses an area within Kimberley Region in Western Australia which includes Ashmore Reef, Browse Island, Cartier Island, Clerke Reef, Cunningham Island, Mermaid Reef, Scott Reef and Seringapatam Reef. These critical geospatial data layers provide the essential environmental baseline information for the long-term monitoring and management of these Marine Parks. Mapping the shallow water zone is of importance both from an environmental and socioeconomic perspective. Having access to digital, georeferenced, high-resolution maps of bathymetry and benthic habitats of shallow water areas, is of fundamental use in the areas of navigation, ecological research, environmental modelling, management and conservation, and monitoring the impacts from climate change. Bathymetry data was processed using the physics-based inversion method to derive quantitative information of the shallow water bathymetry using the reflected sunlight energy in different wavelengths of the visible and near infrared region. A detailed delivery report is provided in: Delivery Report: Satellite-Derived Bathymetry, Priority Australian Seabed Mapping Sites. Reference: 20220304.0888. EOMAP Australia Pty Ltd. This dataset is not to be used for navigational purposes. This dataset is published with the permission of the CEO, Geoscience Australia.

Tags: AusSeabed, EARTH SCIENCES, Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry, HVC_144641, Oceans, Published_External, Satellite-Derived Bathymetry, Sentinel-2, bathymetric grids, bathymetry, satellite-derived bathymetry (SDB)
Organization: Australian Ocean Data Network
Coral faunas from the Silurian of New South Wales and the Devonian of Western Australia

Part I. deals with Devonian coral faunas from the West Kimberleys, the East Kimberleys, and the Carnarvon Basin of Western Australia. Of the 30 species described and illustrated from the West Kimberley's, 22 are from the Pilbara Limestone, and of these fifteen are from the main (lower) part of the Limestone of Givetian age, but there are five from the Atrypa beds of Teichert which the Bureau of Mineral Resources equates with the upper part of the Pillara Limestone and which may be late Givetian or possibly Frasnian; one Disphyllurn occurs in Atrypa beds referred by Teichert to Oberdevonstufe (Frasnian). This Pillara Limestone fauna (lower and upper) is dominated by Disphyllum with Hexagonaria, Thamnopora, and Alveolites also important. The overlying Mount Pierre Group, of Frasnian (Oberdevonstufe I) and early Famennian (ll and III) age, and the Bugle Gap Limestone (IV), have a strikingly different fauna mostly of small slender solitary corals. A new genus of Rugosa, Catactotoechus, type, species C. irregularis sp. nov., is described and figured. The East Kimberley corals are the Upper Devonian Palaeosmlia contexta sp. novo and Syringopora patula  Hinde. From the Carnarvon Basin only four species are known, all from the Gneudna Formation; the genera to which they belong are those dominant and characteristic in the Pillara Limestone of the West Kimberleys, and in upper Givetian and early Frasnian faunas elsewhere, so that the Gneudna Formation Is probably of this age; the lack of identical species between the Carnanon and Kimberley Basins may be due to differences of province rather than time. The Western Australian Givetian coral faunas contain no species in common with those of eastern Australia, and many of the genera characteristic in eastern Australia, such as Endophyllum,, Sanidophyllum, and Heliolitcs, are absent in Western Australia. Part II deals with fragmentary coral material from the Silurian limestone, near Kiandra, southern New South Wales, including Halysites brevicatenatus sp. nov.; only two species are identified with previously described Australian forms, but the age indicated is probably Wenlockian, possibly Ludlovian.

Tags: AU, Bulletin, Earth Sciences, GA Publication, Published_External, marine
Organization: Australian Ocean Data Network