AndreaBozzo/ceres-open-data-index huggingface dataset:
GSNSW Eromanga-Thompson magnetic rtp 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 magnetic grid has a cell size of 0.00077 degrees (approximately 80m).The data are in nanoTesla (or nT). The data used to produce this grid was acquired in 2005 by the NSW Government, and consisted of 166533 line-kilometres of data at line spacing between 250m and 400m, and 60m terrain clearance. The data has had a variable reduction to the pole applied to centre the magnetic anomaly over the magnetised body. The VRTP processing followed a differential reduction to pole calculation up to 5th order polynomial. Magnetic inclination and declination were derived from the IGRF-11 geomagnetic reference model using a data representative date and elevation representative of the survey.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, RTP, TMI, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, reduced to the pole, survey 1106, total magnetic intensity
Organization: Geoscience Australia Data
West Wyalong magnetic 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 West Wyalong magnetic grid geodetic has a cell size of 0.0001 degrees (approximately 11m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1998 by the NSW Government, and consisted of 7819 line-kilometres of data at a line spacing between 50m and 100m, and 60m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, TMI, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 697, total magnetic intensity
Organization: Geoscience Australia Data
Eucla Central Gravity Complete Spherical Cap Bouguer Geodetic

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 Eucla Central Gravity Complete Spherical Cap Bouguer Geodetic is a complete spherical cap Bouguer anomaly grid for the Eucla Central Gravity Survey (P201163). This gravity survey was acquired under the project No. 201163 for the geological survey of WA. The grid has a cell size of 0.005 degrees (approximately 516m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 5706 gravity stations were acquired to produce this grid.

Tags: Australia, Bouguer, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, complete, geophysical survey, geophysics, grav, gravity, grid, ground digital data, raster, spherical cap, survey 201163
Organization: Geoscience Australia Data
Marshall Islands Levelling Survey Report - 2009

This report outlines the level survey completed during the visit to Majuro Atoll, Marshall Islands during 27 March to 4 April, 2009.
This is the third EDM Height Traversing levelling survey of the deep bench mark array in Majuro Atoll, Marshall Islands. 
This is a repeat survey. On eight previous occasions, from 1993 to February 2003, the Marshall Islands level survey was performed by the National Tidal Centre (NTC) using the Precise Differential Levelling technique.
This project is sponsored by the Australian Agency for International Development (AusAID), managed by the Bureau of Meteorology (BOM) and supported by the National Geospatial Reference Systems Project (NGRS), Geospatial Earth Monitoring Division, GEOSCIENCE AUSTRALIA.

Tags: Geodesy, Geodetic Data, MH, Published_External, geodesy
Organization: Geoscience Australia Data
Seabed environments and shallow geology of the Vlaming sub-basin, Western Australia: Chlorin analyses of seabed sediments.

Geoscience Australia undertook a marine survey of the Vlaming Sub-basin in March and April 2012 to provide seabed and shallow geological information to support an assessment of the CO2 storage potential of this sedimentary basin. The survey was undertaken under the Australian Government's National CO2 Infrastructure Plan (NCIP) to help identify sites suitable for the long term storage of CO2 within reasonable distances of major sources of CO2 emissions. The Vlaming Sub-basin is located offshore from Perth, Western Australia, and was previously identified by the Carbon Storage Taskforce (2009) as potentially highly suitable for CO2 storage. The principal aim of the Vlaming Sub-basin marine survey (GA survey number GA334) was to look for evidence of any past or current gas or fluid seepage at the seabed, and to determine whether these features are related to structures (e.g. faults) in the Vlaming Sub-basin that may extend up to the seabed. The survey also mapped seabed habitats and biota in the areas of interest to provide information on communities and biophysical features that may be associated with seepage. This research addresses key questions on the potential for containment of CO2 in the Early Cretaceous Gage Sandstone (the basin's proposed CO2 storage unit) and the regional integrity of the South Perth Shale (the seal unit that overlies the Gage Sandstone). This dataset comprises chlorin analyses (total chlorins and chlorin indices) from seabed sediments (0-2 cm).

Tags: Marine Data, Marine Geoscience, Published_External, WA, continental shelf, geochemistry, marine, marine environmental baselines, seabed
Organization: Geoscience Australia Data
Goulburn, NSW, 1996 (P650), 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 Goulburn, NSW, 1996 survey were acquired in 1996 by the NSW Government, and consisted of 69424 line-kilometres of data at 250m line spacing and 80m 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 650, vector
Organization: Geoscience Australia Data
Velocity Analysis and Depth Conversion in the Offshore Northern Perth Basin

The northern Perth Basin is an elongate sedimentary basin, located off the southwestern margin of Australia.  The basin is prospective for petroleum resources, but is relatively under-explored, and the nature of the sediment-basement contact is relatively unknown due to a high degree of structuring and deep basement depth inhibiting seismic imagining.  Accurate depth conversion of seismic interpretation is vital for use as constraints in gravity modelling and in other basin modelling tasks, but depth conversion requires good quality seismic velocity information.  The number and distribution of wells with velocity information in the northern Perth Basin is poor, but there exists a large amount of seismic stacking velocities.  Seismic stacking velocities are an outcome of seismic processing and are thus not a direct measurement of the speed of sound in rocks.  To improve the quality of stacking velocities we propose a methodology to calibrate stacking velocities against well velocities, which is as follows:

Check each velocity dataset for errors
Modify the datum of each dataset to the sea floor
Convert all datasets to TWT and depth domain
Resample all velocity datasets to the same depth intervals
Cross plot stacking velocity depths near a well site with corresponding well depths
Fit a linear polynomial to this cross-plot (higher order polynomials were tried also), and determine calibration coefficient from the gradient of the polynomial.  
Grid calibration coefficients
Multiply depths derived from stacking velocities by calibration coefficient grid

An assessment of depth conversion errors relative to wells shows that this methodology improves depth conversion results to within Â±50m; this depth uncertainty translates into a gravity anomaly error of about Â±20 gu, which is acceptable for regional scale gravity modelling.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, marine, seismic velocity
Organization: Geoscience Australia Data
National Groundwater Protection Guidelines for Australia

Development of groundwater resources has been the main focus of attention for Australia s groundwater managers over the past 150 years. This development phase must be accompanied by appropriate allocation policies, if the resources are to be managed in a sustainable way, because resource protection relies greatly on good allocation policies. The Australian Water Resources Council is currently developing national guidelines to protect groundwater from contamination. These guidelines are not prescriptive, but instead provide a broad framework under which the States and Territories can tailor their own set of management plans for each important aquifer. The guidelines were developed in a consultative manner and adopt a planning framework to integrate the traditional groundwater management, land-use planning, and modern environmental protection approaches to groundwater protection. This paper describes the background, the preparation process, some important issues, and the broad content of the national guidelines for groundwater protection. Successful implementation of these groundwater protection plans will rely on efforts of groundwater managers and their ability to interact with and influence a broad range of other managers.

Tags: Earth Sciences, GA Publication, Journal, Published_External
Organization: Geoscience Australia Data
Seven Mile 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Mirackina 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
Spring Range 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: AU-NT, Orthophoto Map, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
North Australia Project southern Arunta: archive of GIS and associated data. (Includes the south Arunta mafic-ultramafic study)

This data package is an archive of geospatially located and other digital data covering the southern Arunta region, a  portion of the North Australia Project undertaken to understand elements within the North Australia Craton and its boundaries. It includes digital geospatical feature data and /or images for a number of 1:250 000 and 1:100 000 geological maps, mineral locations, geophysical images, company drill hole and rock chip data, geochemistry, and regional themes. It also includes publications and geospatial data relating to the mafic-ultramafic study module in the southern Arunta.

Tags: AU-NT, Earth Sciences, GIS Dataset, Published_External, Regional, geology, geophysics, geoscience databases, mapping, mineral deposits
Organization: Geoscience Australia Data
GSWA Collie TMI 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 GSWA Collie TMI Grid Geodetic has a cell size of 0.00042 degrees (approximately 42m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 2011 by the WA Government, and consisted of 101882 line-kilometres of data at a line spacing between 200m and 400m, and 50m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, TMI, WA, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 1244, total magnetic intensity
Organization: Geoscience Australia Data
Madley-Herbert, WA, 2010 (South Canning 1) (P1228), 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 Madley-Herbert, WA, 2010 (South Canning 1) survey were acquired in 2010 by the WA Government, and consisted of 96079 line-kilometres of data at 400m line spacing and 60m terrain clearance.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, Published_External, WA, airborne digital data, geophysical survey, geophysics, line, survey 1228, terrain, vector
Organization: Geoscience Australia Data
The Granites B, NT, 1988 (P620), 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 The Granites, NT, 1988 survey were acquired in 1988 by the NT Government, and consisted of 9778 line-kilometres of data at 500m line spacing and 90m 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 620, vector
Organization: Geoscience Australia Data
NTData (digital geology of the Northern Territory), Mount Theo

These data are a digital representation of information depicted on printed maps from the Australia 1:250 000 Geological Series produced by AGSO and the Northern Territory Geological Survey (NTGS) between 1963 and 1998.  The data are in a tiled format 
and are not seamless, although basic edgematching has been done where possible.  Tiles are arranged according to the standard Australian 1:250 000 sheet breakup.  The complete dataset is comprised of the 90 tiles covering the Northern Territory.

Tags: AU-NT, Earth Sciences, GIS Dataset, Published_External, Regional, dataset, geology
Organization: Geoscience Australia Data
Automated Density Profiling over enlongate topographic features

Nettletons concept of density profiling can be utilised to give useful estimates of the bulk density of topographic features. These estimates can be used to infer the composition of such topography, or to assist in the interpretation of local gravity anomalies. Two methods that facilitate multiple density profiling over elongate topography are presented. One is a simulation reduction method utilising the two-dimensional line integral formula of Talwani, Worzel and Landisman (1959). It enables data from any detailed gravity traverse crossing an elongate topographic feature at right angles to be automatically reduced by computer to a set of multiple density Bouguer profiles. From these profiles, the bulk density of the topographic feature can be estimated by visual correlation. The other is a graphical method of converting a set of multiple density Bouguer profiles directly to point density estimates, without the need for visual correlation. Both methods are theoretically exact for the ideal case. A visual correlation determination of 2.85 Â± 0.05 g cm^-3 is demonstrated for a traverse crossing the 300 m high Harts Range, Northern Territory, and three point determinations of 2.97,2.97, and 2.99 g c^-3, for a traverse crossing the 100 m high Fraser Range, Western Australia.

Tags: Earth Sciences, GA Publication, Journal, NT, Published_External, WA
Organization: Geoscience Australia Data
Aquatic Substrate Library - Corner Inlet 2011

Record for source data hosted in the National Spectral Database (NSD) Aquatic Library
Citation:
Monk, J., Pope, A., Ierodiaconou, D., Otera, K. &amp; Mount, R. (2011) Corner Inlet and Nooramunga Habitat Mapping Project; Deakin University, Warrnambool, Victoria, Australia.
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: Geoscience Australia Data
Cobar magnetic and radiometric survey, NSW, 2021 (P5009), Extension 5, 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 Cobar Magnetic and Radiometric Survey, 2021 survey were acquired in 2021 by the NSW Government, and consisted of  line-kilometres of data at 200m line spacing and 60m terrain clearance.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, NSW, Published_External, airborne digital data, geophysical survey, geophysics, line, survey 5009, terrain, vector
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Kennedy Range (sg50-01)

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