AndreaBozzo/ceres-open-data-index huggingface dataset:
Sediment Data for Carnarvon Shelf

Geoscience Australia carried out a marine survey on Carnarvon shelf (WA) in 2008 (SOL4769) to map seabed bathymetry and characterise benthic environments through co-located sampling of surface sediments and infauna, observation of benthic habitats using underwater towed video and stills photography, and measurement of ocean tides and wave-generated currents. Data and samples were acquired using the Australian Institute of Marine Science (AIMS) Research Vessel Solander. Bathymetric mapping, sampling and video transects were completed in three survey areas that extended seaward from Ningaloo Reef to the shelf edge, including: Mandu Creek (80 sq km); Point Cloates (281 sq km), and; Gnaraloo (321 sq km). Additional bathymetric mapping (but no sampling or video) was completed between Mandu creek and Point Cloates, covering 277 sq km and north of Mandu Creek, covering 79 sq km. Two oceanographic moorings were deployed in the Point Cloates survey area. The survey also mapped and sampled an area to the northeast of the Muiron Islands covering 52 sq km.
Seabed sediment samples were collected by a Smith McIntyre grab at a total of 275 locations, divided between Mandu Creek (n=81), Point Cloates (n=92), Gnaraloo (n=92) and Muiron Islands (n=10). The full sample set represents 102 sampling stations at which two sediment grabs were collected in close proximity. The exception to this was at Mandu Creek where three grabs were collected at 19 stations and at Gnaraloo where single grabs were taken at three stations. At Muiron Islands, single grabs were collected at five stations and two grabs at three stations (see Brooke et al. 2009).

Tags: AU-WA, Bathymetry Grid, CERF, Marine Data, Marine Geoscience, Published_External, abiotic surrogates, marine, sedimentology
Organization: Geoscience Australia Data
Mapping electrical conductivity structure for geological interpretation and mineral prospectivity - Geoscience Australia's MT program

The magnetotellurics (MT) method maps the electrical conductivity/resistivity structure of the subsurface, which provides crucial information for mineral exploration. Geoscience Australia has actively applied the method to provide multiscale world-leading datasets to improve the understanding of geology and resource potential. We demonstrate the value of scaled MT data acquisition starting from mapping large-scale conductivity structures in the lithosphere utilising long-period MT datasets through to the resolution of finer scale structures in the crust suitable for camp scale targeting. Integration of data from multiscale surveys provides an effective way to narrow the search space and to identify ‘targets’ of mineral potential in covered terranes. Our work has helped to increase explorers’ investment confidence for new mineral discoveries in greenfield regions.

Tags: EARTH SCIENCES, Published_External, Wednesday Seminar, magnetotelluric methods
Organization: Geoscience Australia Data
New SHRIMP U-Pb zircon ages from north Queensland, 2007-10

This record presents a compilation of new zircon U-Pb SHRIMP geochronological results for 17 sedimentary and igneous samples from the Etheridge Province, Georgetown Region, north Queensland, and four samples from the recently identified Millungera Basin, located under cover between the Mount Isa and Georgetown regions.

Tags: Earth Sciences, GA Publication, Published_External, Record, geochronology
Organization: Geoscience Australia Data
Alice Springs Region 1:100 000 geological map commentary

Explanatory notes for 1:100 000 geological series maps for the Northern Territory. These were originally published by the Bureau of Mineral Resources, Geology and Geophysics 1981-1988, and later issued on CD ROM as Northern Territory Geological Survey special publication no. 4 in 2007.

Tags: AU-NT, Earth Sciences, Explanatory Notes, GA Publication, Published_External, geology
Organization: Geoscience Australia Data
Accommodating Spatially Varying Tidal Planes in Tsunami Hazard Assessments

Tsunami hazard assessment is commonly performed using a conservatively high sea level, typically the highest astronomical tide (HAT). However, HAT is not constant but varies from location to location. This is especially true in northern Australia such as along Queensland’s Coast where HAT varies from 1.4 m at Lady Elliot Island to over 5.4 m near St Lawrence. Picking any single tidal plane leads to over or under-estimation of the HAT tsunami inundation at most sites.
We propose a simple yet effective technique to model tsunamis with a spatially varying HAT. It does not require separate simulations at multiple tidal levels and does not induce spurious flows due to an uneven sea surface. We demonstrate the accuracy of this method using the Gladstone region as a case study. The tests include comparisons with tsunami scenarios at different HAT levels, and comparisons of “mini” probabilistic tsunami hazard assessments at three sites with markedly different HAT levels: Lady Elliot Island, South Trees, and Rosslyn Bay. The “mini” probabilistic tsunami hazard assessment considers four major earthquake source zones and uses importance sampling to efficiently leverage offshore scenarios and return periods from the 2018 Australian Probabilistic Tsunami Hazard Assessment. Tsunamis are simulated globally from the earthquake source to the Gladstone region using nested grids with resolution down to a 10 m to resolve inundation and marine hazards.
The proposed tidal adjustment technique allows tsunami hazard assessments to be conducted in regions where the chosen tidal plane is spatially inhomogeneous. In Gladstone, these methods produce inundation that is typically much smaller than currently used heuristics that are not derived from hydrodynamic models. These support tsunami evacuation plans and enable emergency management planners to refine the tsunami procedures for mariners and better focus procedures for onshore evacuation in the event of a land-warning tsunami.
Presented at the 2025 Australasian Coasts &amp; Ports Conference

Tags: Natural Hazards, Published_External, probabilistic hazard assessment, tides, tsunami
Organization: Geoscience Australia Data
Determination of GDA94 coordinates for the CORSnet-NSW stations using the September 2009 and January 2010 GPS data sets

Applications dated 21 October 2009 and 03 February 2010 for verification of a reference standard of measurement under regulation 12 of the National Measurement Regulations 1999 were received from the Land and Property Management Authority, NSW,  for verification of GDA94 position on their CORSnet GPSnet antenna installations. This report documents the processing and analysis of GPS data observed by the CORSnet-NSW GPS stations during a 7-day period from 27 September to 03 October 2009 (day of year 270 to 276) for 24 stations (ARMD, BALL, BATH, CHIP, COFF, CWN2, DBBO, GFTN, GLBN, GONG, MENA, MGRV, NEWC, NWRA, PMAC, SPWD, TARE, ULLA, UNSW, VLWD, WFAL, WGGA, WWLG and WYNG), DKSN station from 11 October to 17 October 2009 (day of year 284 to 290), three stations (LGOW, MUDG and ORNG) from 17 January to 23 January 2010 (day of year 17 to 23), and PKTL station from 27 December 2009 to 02 January 2010 (day of year 361 to 365 in 2009 and day of year 01 to 02 in 2010), to satisfy the position verification requirements.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, geodesy
Organization: Geoscience Australia Data
Continuous Multi-spectral Fluorescence and Absorption Spectroscopy for Petroleum Hydrocarbon Detection in Near-surface Ocean Waters : ZoNiCo5 Survey, Fairway Basin Area, Lord Howe Rise

A WET Labs SAFire multi-spectral and absorption meter was used to identify dissolved poly-aromatic hydrocarbons and anomalous biological activity in near surface waters. Over 6000 km of data were collected southwest of Noumea. No obvious hydrocarbon anomalies were detected but blue-green algal blooms (Trichodesmium ?), identified also by satellite and biological analysis (Dupouy et al, 2000), were commonly encountered in the survey area. An extremely high absorption anomaly centred at 162.7 deg E and 22.7 deg S, with a strong algal fluorescence signature at 440 nm excitation, is also likely to be from the same source.

Tags: Earth Sciences, GA Publication, Published_External, Record, geochemistry, marine
Organization: Geoscience Australia Data
Warrumbungle/Nandewar Ranges Volcano Gravity (P198202), gravity point data

Gravity data measures 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 Warrumbungle/Nandewar Ranges Volcano Gravity (P198202) contains a total of 107 point data values acquired at a spacing of 3500 metres. The data is located in NSW and were acquired in 1982, under project No. 198202 for None.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 198202
Organization: Geoscience Australia Data
Mount Christine 1:50 000 topographic map

Product Specifications Coverage: Partial coverage, predominantly in northern Australia, along major transport routes, and other selected areas. About 1000 maps have been published to date. Currency: Ranges from 1968 to 2006. Coordinates: Geographical and UTM. Datum: AGD66, new edition WGS84; AHD. Projection: Universal Transverse Mercator UTM. Medium: Paper, flat copies only.

Tags: 50K scale, AU-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
New insights is the talk presented to the December 2004 PDT meeting in Perth regarding many of the new insights of the geodynamics and architecture from building the 3D map

New insights .pdf is the talk presented to the December 2004 PDT meeting in Perth regarding many of the new insights of the geodynamics and architecture from building the 3D map.

Tags: AU-WA, Earth Sciences, PMD*CRC Publication, Project Y2 - Appendix 8, Published_External, pmd*CRC
Organization: Geoscience Australia Data
Naryilco 1:100 000 unpublished topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres.

Tags: 100K unpublished, AU-QLD, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Clarence-Moreton (Chinchilla), QLD, 1986 (P517), magnetic line data, AWAGS levelled

Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data 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.
 These line dataset from the Clarence-Moreton (Chinchilla), QLD, 1986 survey were acquired in 1986 by the QLD Government, and consisted of 14192 line-kilometres of data at 1500m line spacing and 150m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, Published_External, QLD, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 517, vector
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: (sf49-10)

AUSGeoid98 data files contain a 2 minute grid of AUSGeoid98 data covering the Australian region, which you can use to interpolate geoid-ellipsoid separations for the positions required.You can use your own interpolation software, or you can use Geoscience Australia's Windows Interpolation software (Winter). The data files are text files in a standard format that cover the same area as standard topographic map areas. Files covering both 1:250,000 (approximately 100 x 150 km) and 1:1,000,000 (approximately 400 x 600 km) map areas are available. There is a 4 minute overlap on all sides of each area. Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places. AUSGeoid98 deflections of the vertical were computed from the geoid-ellipsoid separation surface, while the AUSGeoid93 deflections of the vertical were computed from OSU91A.

Tags: AU, AUSGeoid98, Geodesy, Geodetic Data, Published_External, dataset, geodesy
Organization: Geoscience Australia Data
2018 National Tropical Cyclone Hazard Assessment Data- Derived Geo-spatial Product

The wind hazard posed to Australia based on the frequency and intensity of tropical cyclones making landfall around the Australian coastline has been assessed using Tropical Cyclone Hazard Assessment (TCHA). This dataset is a derived product from the original raster layers.
We compiled geospatial raster layers for each recurrence interval - i.e. 5 through 10000 years in km/hr unit and classified in 19 classes to better present to a public audience.

Tags: ATMOSPHERIC SCIENCES, Geospatial Information Systems, Meteorology, Natural Hazards, Published_External
Organization: Geoscience Australia Data
Narrandera 1:250 000, R502 historical topographic map

The R502 series of maps has been replaced by the National Topographic Map Series (NTMS). The R502 series consists of 542 map sheets and covers Australia at a scale of 1:250,000. It was compiled from aerial photography, but only about one quarter of the series was contoured. The standard sheet size is 1 degree of latitude by 1.5 degrees of longitude. Transverse Mercator map projection and Clark 1858 datum were used. Coverage of the country was completed in 1968.

Tags: 250K scale, AU_NSW, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Lakefield 1:50 000 topographic map

Product Specifications Coverage: Partial coverage, predominantly in northern Australia, along major transport routes, and other selected areas. About 1000 maps have been published to date. Currency: Ranges from 1968 to 2006. Coordinates: Geographical and UTM. Datum: AGD66, new edition WGS84; AHD. Projection: Universal Transverse Mercator UTM. Medium: Paper, flat copies only.

Tags: 50K scale, AU-QLD, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Eucla East Gravity Survey (P201164), gravity point data

Gravity data measures 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 Eucla East Gravity Survey (P201164) contains a total of 5202 point data values acquired at a spacing of 2500 metres. The data is located in WA and were acquired in 2011, under project No. 201164 for Geological Survey of Western Australia (GSWA).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 201164
Organization: Geoscience Australia Data
Magnetic Anomaly Map of Australia, Seventh Edition, 2020 - Enhanced Products Package - TMI RTP image (PGravThd)

Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. 
The 2019 Total magnetic Intensity (TMI) grid of Australia has a grid cell size of ~3 seconds of arc (approximately 80 m). This grid only includes airborne-derived TMI data for onshore and near-offshore continental areas. Since the sixth edition was released in 2015, data from 234 new surveys have been added to the database, acquired mainly by the State and Territory Geological Surveys. The 2019 national grid was derived from a re-levelling of the national magnetic grid database. The survey grids were levelled to each other, and to the Australia Wide Airborne Geophysical Survey (AWAGS), which serves as a baseline to constrain long wavelengths in the final grid. It is estimated that 33 500 000 line-kilometres of survey data were acquired to produce the 2019 grid data, about 2 000 000 line-kilometres more than for the previous edition. 
The data 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 Magnetic Anomaly Map of Australia, Seventh Edition, 2020 - Enhanced Products Package - TMI RTP image (PGravThd) is a pseudocolour image of the TMI grid of the Magnetic Anomaly Map of Australia, Seventh Edition, 2019.
This grid has a cell size of 0.00083 degrees (approximately 88m). This pseudocolour image shows the magnetic response of subsurface features with contrasting magnetic susceptibilities. The image can also be used to locate structural features such as dykes.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, None, Published_External, TMI, VBzz, airborne digital data, geophysical survey, geophysics, image, mag, magnetics, magnetism, national, palaeomagnetism, pseudo susceptibility, pseudo-gravity transformation, pseudocolour, pseudocolour image, raster, reduced to the pole, survey 1324, tilt angle, total horizontal derivative filter, total horizontal gradient, total magnetic intensity, variable vertical gradient of TMI vertical component
Organization: Geoscience Australia Data
Koonamore 1:100 000 topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

Tags: 100K scale, AU-SA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Woodah 1:50 000 topographic map

Product Specifications Coverage: Partial coverage, predominantly in northern Australia, along major transport routes, and other selected areas. About 1000 maps have been published to date. Currency: Ranges from 1968 to 2006. Coordinates: Geographical and UTM. Datum: AGD66, new edition WGS84; AHD. Projection: Universal Transverse Mercator UTM. Medium: Paper, flat copies only.

Tags: 50K scale, AU-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Mirani 1:100 000 topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

Tags: 100K scale, AU-QLD, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Bailey 1:100 000 unpublished topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres.

Tags: 100K unpublished, AU-WA, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Limbunya 1:250 000, R502 historical topographic map

The R502 series of maps has been replaced by the National Topographic Map Series (NTMS). The R502 series consists of 542 map sheets and covers Australia at a scale of 1:250,000. It was compiled from aerial photography, but only about one quarter of the series was contoured. The standard sheet size is 1 degree of latitude by 1.5 degrees of longitude. Transverse Mercator map projection and Clark 1858 datum were used. Coverage of the country was completed in 1968.

Tags: 250K scale, AU_NT, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data