AndreaBozzo/ceres-open-data-index huggingface dataset:
Napperby/Hermannsburg2 1, NT, 1997 (P1002), radiometric line data, AWAGS levelled

The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). 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 Napperby/Hermannsburg2 1, NT, 1997 (P1002), radiometric line data, AWAGS levelled were acquired in 1997 by the NT Government, and consisted of 105377 line-kilometres of data at 400m line spacing and 60m 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, NASVD, NT, Published_External, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 1002, thorium, uranium, vector
Organization: Geoscience Australia Data
Kingoonya - ground elevation geoid grid (laser)

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This Kingoonya - ground elevation geoid grid (laser) is elevation data for the Kingoonya Airborne Magnetic Radiometric and DEM survey, SA, 2018. This survey was acquired under the project No. 1311 for the geological survey of SA. The grid has a cell size of 0.0004 degrees (approximately 41m).  This grid contains the ground elevation relative to the geoid for the Kingoonya Airborne Magnetic Radiometric and DEM survey, SA, 2018. It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, NCI, Published_External, SA, digital data, geoid, geophysical survey, geophysics, grid, raster, survey 1311, terrain
Organization: Geoscience Australia Data
Murloocoppie 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-SA, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Einasleigh (se55-09)

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
Barrow Island 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_WA, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
NSW DMR, Discovery 2000, 1994-95, AREA A4, Koonenberry (P731), 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 NSW DMR, Discovery 2000, 1994-95, AREA A4, Koonenberry survey were acquired in 1995 by the NSW Government, and consisted of 67000 line-kilometres of data at 250m line spacing and 60m 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, NSW, Published_External, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 731, vector
Organization: Geoscience Australia Data
Chilly Bed 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
Murray Basin Gravity (P196033), 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 Murray Basin Gravity (P196033) contains a total of 645 point data values acquired at a spacing between 100 and 200 metres. The data is located in NSW and were acquired in 1960, under project No. 196033 for Woodside Oil NL.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 196033
Organization: Geoscience Australia Data
Streaky Bay - magnetic line data (AWAGS)

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 Streaky Bay Airborne Magnetic Radiometric and DEM survey, SA, 2018 survey were acquired in 2018 by the SA Government, and consisted of 90670 line-kilometres of data at 200m line spacing and 60m 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, SA, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 1308, vector
Organization: Geoscience Australia Data
Wangaratta 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_VIC, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Broken Hill Gravity (P199427), 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 Broken Hill Gravity (P199427) contains a total of 3417 point data values acquired at a spacing between 30 and 120 metres. The data is located in NSW and were acquired in 1994, under project No. 199427 for CRA Exploration Pty Ltd.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199427
Organization: Geoscience Australia Data
Validating Digital Earth Australia NBART for the Landsat 9 Underfly of Landsat 8

In recent years Geoscience Australia has undertaken a successful continental scale validation program, targeting Landsat and Sentinel analysis ready data surface reflectance products. The field validation model used for this program successfully built on earlier studies and the measurement uncertainties associated with these protocols have been quantified and published. As a consequence, the Australian earth observation community was well-placed to respond to the United States Geological Survey (USGS) call for collaborators with the 2021 Landsat 8 (L8) and Landsat 9 (L9) 6 underfly. Despite a number of challenges, seven validation datasets were captured across five sites. As there was only a single 100% overlap transit across Australia and with the country in the midst of a strong La Niña climate cycle, it was decided to deploy teams to the two available overpasses with only 15% side lap. The validation sites encompassed rangelands, chenopod scrublands and a large inland lake. Apart from instrument problems at one site, good weather enabled the capture of high quality field data allowing for meaningful comparisons between the radiometric performance of L8 and L9, as well as the USGS and Australian Landsat analysis ready data processing models. Duplicate (cross calibration) spectral sampling at different sites provides evidence of the field protocol reliability, while the off-nadir view of L9 over the water site has been used to better compare the performance of different water and atmospheric correction (ATCOR) processing models.&nbsp;
Citation: Byrne, G.; Broomhall, M.; Walsh, A.J.; Thankappan, M.; Hay, E.; Li, F.; McAtee, B.; Garcia, R.; Anstee, J.; Kerrisk, G.; et al. Validating Digital Earth Australia NBART for the Landsat 9 Underfly of Landsat 8. Remote Sens. 2024, 16, 1233. https://doi.org/10.3390/rs16071233

Tags: Analysis Ready Data, DEA – Digital Earth Australia, ENVIRONMENTAL SCIENCES, Earth observation, Published_External, Validation, field spectrometry, landsat 8 9 underfly
Organization: Geoscience Australia Data
Mt Webb Wilson Webb ppm uranium grid geodeticg

The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). 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 radiometric uranium grid has a cell size of 0.00083 degrees (approximately 89m) and shows uranium element concentration of the Mt Webb-Wilson-Webb merge, 1995-1998 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1995 by the WA Government, and consisted of 89949 line-kilometres of data at 400m line spacing and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, NCI, Published_External, U, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, rad, radiometrics, raster, spectrometry, survey 1351, uranium
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Esperance (si51-06)

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
New SHRIMP U-Pb zircon ages from the central Lachlan Orogen, New South Wales: Regional Mapping Projects, July 2015-June 2016

This Record presents new U-Pb geochronological data, obtained via Sensitive High Resolution Ion Micro Probe (SHRIMP), from six samples of igneous rocks and four samples of sedimentary rocks, collected from south-central New South Wales. The work is part of an ongoing Geochronology Project, conducted by the Geological Survey of New South Wales (GSNSW) and Geoscience Australia (GA) under a National Collaborative Framework (NCF) agreement, to better understand the geological evolution of the central Lachlan Orogen in the East Riverina region. The results presented herein correspond to the reporting period July 2015-June 2016.

Tags: Lachlan Orogen, Published_External, SHRIMP, Sensitive High Resolution Ion Micro Probe, U-Pb, zircon
Organization: Geoscience Australia Data
Mentelle Basin - Tectonic Evolution Controlled by of the Combined Extensional History of the Southwestern and Southern Australian Margins

New geophysical data acquired by Geoscience Australia during the Southwest Margins 2D seismic survey in 2008-09 has been used to interpret the tectonic and depositional history of the Mentelle Basin. The Mentelle Basin is a large, potentially prospective frontier basin located between the Yallingup Shelf and the Naturaliste Plateau. It comprises several shallow water depocentres (500-1500 m) in the east (eastern Mentelle Basin) and a large ultra deep-water depocentre (3000-3500 m) in the west (western Mentelle Basin). 
Interpretation of the new data revealed that initial rifting in the Mentelle Basin occurred in the Early Permian as part of the Perth Basin extensional system. This was followed by Late Permian to Early Jurassic thermal subsidence. Half-graben structures with Permo-Triassic fill have been mapped in the eastern Mentelle Basin. The main depositional phase in the western Mentelle Basin has been interpreted to correlate with Late Jurassic to Early Cretaceous extension in the Perth Basin and on the Southern Margin. New structural interpretation shows that in the northern part of the western Mentelle Basin, major structures are trending N-S similar to the Perth Basin, whereas in the south most structures are trending SW-NE, which is consistent with the orientation of the extensional basins on the Southern Margin. The proximity of the Southern Margin rift system not only affected the structure of the Mentelle Basin but also resulted in major fault reactivation, inversion and margin collapse in the Eocene corresponding to the onset of fast spreading in the Southern Ocean.

Tags: AU-WA, Conference Paper, Earth Sciences, External Publication, Published_External, continental margins, sedimentary basins
Organization: Geoscience Australia Data
Modernising Historical Aerial Photography

Prior to the advent of satellite imagery in the 1970s, extensive use was made of aerial photography to systematically image and capture land information. As part of national mapping and survey campaigns run by its predecessors, Geoscience Australia (GA) is custodian of some 1.2 million aerial photos dating back to 1928. Through these campaigns every part of Australia and its external territories was imaged at some point and often repeatedly over the last 90 years, forming a unique and invaluable historical collection. Most importantly, they enable us to extend the record of surface land changes back an additional 50 years or more.
GA is progressively moving this collection from analogue to a modern digital data management framework. Discoverability and access to data are essential to realising the full potential of the collection, and associated flight line diagrams are critical in connecting physical and digitised material in the collection to an accurate location consistent with modern datums. The focus of digitisation has been on scanning film and storing individual frames as photo images. Both flight line diagrams are also being digitised and georeferenced, and information on the film is transcribed into a structured database, which will drive a future catalogue for open online access. Only a subset of the aerial photos have been digitised, based on preservation concerns and specific use-cases. GA also is prototyping a new processing workflow to value-add to the digitised collection by creating products that are readily consumable into geographic information systems and as web services. This work may lead to further investment in digitisation by demonstrating broader utility and continuing collaboration with other stakeholders such as the National Archives of Australia. This will be needed to complete the modernisation vision,
As with other historic data remediation, surprising finds have been unearthed, gaps in supporting information identified, and an untapped but largely recognised desire for the data. GA is investigating possible applications of citizen science to aid in the modernisation of this collection.
This presentation will look at the process undertaken, the type of data available, and will outline some examples of the data, and future use.
ePoster is no longer available for access

Tags: HVC_144649, Published_External, historical aerial imagery, historical aerial photography
Organization: Geoscience Australia Data
Holroyd 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, topography
Organization: Geoscience Australia Data
Mortlake detailed gravity (P199241), 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 Mortlake detailed gravity (P199241) contains a total of 270 point data values acquired at a spacing between 500 and 1500 metres. The data is located in VIC and were acquired in 1992, under project No. 199241 for Department of Minerals and Energy (Victoria).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, VIC, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199241
Organization: Geoscience Australia Data
Diakui 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