AndreaBozzo/ceres-open-data-index huggingface dataset:
GSQ Southern Bowen Basin Qld magnetic vd2 grid geodetic

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.
This GSQ Southern Bowen Basin Qld magnetic vd2 grid geodetic is a Second vertical derivative of the Total Magnetic Intensity grid for the Southern Bowen Basin, Qld, 2004.
This grid has a cell size of 0.001 degrees (approximately 106m).  The data used to produce the TMI grid was acquired in 2004 by the QLD Government, and consisted of 74554 line-kilometres of data at 400m line spacing and 80m terrain clearance. A Fast Fourier Transform (FFT) process was applied to the original TMI grid to calculate the Second vertical derivative grid.

Tags: 2VD, 2nd vertical derivative, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, QLD, airborne digital data, geophysical survey, geophysics, grid, magnetics, magnetism, palaeomagnetism, raster, second vertical derivative, survey 1072
Organization: Geoscience Australia Data
Gravity Survey SA 97A3 (P199753), 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 Gravity Survey SA 97A3 (P199753) contains a total of 456 point data values acquired at a spacing between 250 and 500 metres. The data is located in SA and were acquired in 1997, under project No. 199753 for None.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199753
Organization: Geoscience Australia Data
Urapunga 4, NT, 1994 (P622), 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 Urapunga, NT, 1994 survey were acquired in 1994 by the NT Government, and consisted of 91316 line-kilometres of data at 500m line spacing and 100m 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, NT, Published_External, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 622, vector
Organization: Geoscience Australia Data
Revised weathering intensity model of Australia

Weathering is an important process of the Earth’s surface that has a major influence on the chemical and physical properties of rock and soil. The intensity of this process largely controls the degree to which primary minerals are altered to secondary components, including clay and oxide minerals. The degree of surface weathering is particularly important in Australia, where variations in weathering intensity correspond to differences in the nature and distribution of regolith (weathered bedrock and sediments), which mantles approximately 80% of the Australian continent. Here, I use a random forest decision tree machine learning algorithm to first establish a relationship between field estimates of the degree of weathering and a comprehensive suite of covariate or predictive datasets. I then apply this relationship to generate an improved national model of surface to near-surface weathering intensity. Covariates include satellite imagery, terrain attributes, airborne radiometric imagery and mapped geology. The model performs very well, with an r-squared correlation of 0.85 based on 5 K-fold cross-validation on the mean and standard deviation of 300 random forest models. This new weathering intensity model has broad utility for mineral exploration in variably weathered landscapes, agricultural mapping of chemical and physical soil attributes, ecology, and advancing the understanding of weathering processes within the upper regolith.
Citation: Wilford, J., 2020. Revised weathering intensity model of Australia. In: Czarnota, K., Roach, I., Abbott, S., Haynes, M., Kositcin, N., Ray, A. and Slatter, E. (eds.) Exploring for the Future: Extended Abstracts, Geoscience Australia, Canberra, 1–4.

Tags: Data analytics, EARTH SCIENCES, EftF, Exploring for the Future, Machine Learning, Published_External, Regolith, Surface, Weathering, geophysics
Organization: Geoscience Australia Data
Gawler Craton Airborne Survey Merge Radiometrics - U equivalent concentration grid (AWAGS)

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 0.0004 degrees (approximately 41m) and shows uranium element concentration of the Gawler Craton Airborne Survey Magnetic Radiometric and DEM Merge, SA, 2017-2019 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2019 by the SA Government, and consisted of 1660000 line-kilometres of data at 200m line spacing and 60m terrain clearance. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, U, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, rad, radiometrics, raster, spectrometry, survey 5000, uranium
Organization: Geoscience Australia Data
Mount Phillips 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
Davidson 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-NT, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (sh57-15)

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
Rocky Creek 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
Matthew 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Wira Anticline Gravity Survey, Papua, 1959 By The Papuan Apinaipi Petroleum Company Limited

This report describes two gravity surveys conducted by Mines Administration Pty Ltd for The Papuan Apinaipi Petroleum Co. Ltd during the period June 1959 to October 1959. The purpose of the first survey, a detailed gravity survey over the Wira Anticline. was to confirm closure in the Wira Culmination and to obtain information on the possibility of limestone occurring in the sediments below the culmination. The other survey a regional gravity traverse from the Wira Anticline down the Purari River, was expected to extend the gravitational trends shown in the Purari area by a previous survey.
No gravity anomaly was established that could be correlated with the surface geological structure of the Wira Anticline. The results indicate that the largest negative anomaly occurs east of the Purari River below the Aure Scarp Starkey has drawn similar conclusions from his gravity work which was carried out southwards along the Purari and Vailala Rivers in 1958.

Tags: AU-QLD, Earth Sciences, GA Publication, Other Publication, Published_External, petroleum exploration
Organization: Geoscience Australia Data
Interpreted Horizons and Faults Data for Seismic Survey 101. Carnarvon Basin

These data are one of a set of 13 that captures a consistent horizon and fault interpretation of approximately 35 000 km of regional, mostly deep,  seismic reflection data recorded by AGSO along the north and northwestern continental margins of Australia between 1990 and 1994.

Tags: AU-WA, Data Package, Earth Sciences, Geothematic, Published_External, dataset, geophysics, seismics
Organization: Geoscience Australia Data
Cambridge Gulf elevation grid geodetic

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This Cambridge Gulf elevation grid geodetic is elevation data for the Cambridge Gulf, WA, 1994. This survey was acquired under the project No. 635 for the geological survey of WA. The grid has a cell size of 0.00083 degrees (approximately 91m).  This grid contains the ground elevation relative to the geoid for the Cambridge Gulf, WA, 1994. 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, WA, digital data, geoid, geophysical survey, geophysics, grid, raster, survey 635, terrain
Organization: Geoscience Australia Data
Goulburn elevation grid geodetic

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This Goulburn elevation grid geodetic is elevation data for the Goulburn, NSW, 1996. This survey was acquired under the project No. 650 for the geological survey of NSW. The grid has a cell size of 0.00052 degrees (approximately 53m).  This grid contains the ground elevation relative to the geoid for the Goulburn, NSW, 1996. 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, NSW, Published_External, digital data, geoid, geophysical survey, geophysics, grid, raster, survey 650, terrain
Organization: Geoscience Australia Data
Proceedings of the 2010 Australian Geothermal Energy Conference

This volume is a compilation of Extended Abstracts presented at the 2010 Australian Geothermal Energy Conference, 17-19 November 2010, Adelaide Convention Centre, Adelaide, organised by the Australian Geothermal Energy Association and the Australian Geothermal Energy Group.

Tags: Earth Sciences, GA Publication, Published_External, Record, geothermal
Organization: Geoscience Australia Data
Warby Lagoon 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
Barradale 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
South West 2 (Corrigin), WA, 2012 (P1241), 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 South West 2 (Corrigin), WA, 2012 survey were acquired in 2012 by the WA Government, and consisted of 115492 line-kilometres of data at 200m line spacing and 50m 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, WA, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 1241, vector
Organization: Geoscience Australia Data
Para Fault, Salisbury Traverse, Gravity (P197460), 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 Para Fault, Salisbury Traverse, Gravity (P197460) contains a total of 335 point data values acquired at a spacing between 100 and 200 metres. The data is located in SA and were acquired in 1974, under project No. 197460 for Department of Mines and Energy South Australia (SADME).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 197460
Organization: Geoscience Australia Data
Anbali 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
Assessing the accuracy of spatial predictive models in the environmental sciences

Spatial predictive models have been increasingly employed to generate spatial predictions for environmental management and conservation in parallel to the advancement in data acquisition, data processing and computing capabilities. The accuracy of predictive models and their predictions is crucial to evidence-informed decision making and policy. However, the accuracy of predictive models in general is unknown and often accessed using error measures or even correlation measure. In this study, we clarified relevant issues about variance explained for predictive models (VEcv), established the relationships between commonly used predictive error measures like root mean square error (RMSE) and VEcv, unified these measures under VEcv, discovered that VEcv is independent of unit/scale and data variation, quantified the relationships between these error measures and data variation, and quantified the relationship between relative root mean square error (RRMSE) and relative mean absolute error (RMAE). We then assessed the performance of predictive models in the environmental sciences based on about 300 previously published applications and then classified the predictive models based on their performance. This study provided a tool to directly compare the accuracy of predictive models for data with different unit/scale and variation, and established a cross-disciplinary context and benchmark for assessing predictive models in environmental sciences and other disciplines. Recommendations for future studies were provided to objectively assess the performance of predictive models and make the accuracy of predictive models for different disciplines directly comparable.
Abstract presented at the 23rd Australian Statistical Conference 2016

Tags: EARTH SCIENCES, Published_External, error measure, predictive accuracy, spatial predictions
Organization: Geoscience Australia Data
Julia Creek, QLD, 1999 (P1000), elevation line data

The Digital Elevation Model represents ground surface topography between points of known elevation. The elevation data was calculated using the altimeters and Global Positioning System (GPS) sensor used for the benefit of airborne magnetic and radiometric data on the same survey. The elevation is the height relative to the Australian Height Datum GDA94 (AUSGEOID09). The processed elevation 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 Julia Creek, QLD, 1999 survey were acquired in 1999 by the QLD Government, and consisted of 49397 line-kilometres of data at 400m line spacing and 80m terrain clearance.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, Published_External, QLD, airborne digital data, geophysical survey, geophysics, line, survey 1000, terrain, vector
Organization: Geoscience Australia Data