AndreaBozzo/ceres-open-data-index huggingface dataset:
Tasmania merge 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 Tasmania merge tmi grid geodetic has a cell size of 0.00083 degrees (approximately 81m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 2005 by the TAS Government, and consisted of None line-kilometres of data at a line spacing between 100m and 1500m, and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, TAS, TMI, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 1096, total magnetic intensity
Organization: Geoscience Australia Data
Proper motion of reference radio sources

The motion of relativistic jets from the active extragalactic nuclei can reach several hundred microseconds per year and mimic proper motion of the distant radio sources observed by VLBI. Such motion of individual quasar is not correlated and its magnitude exceeds the small systematic effects induced by the rotation of the Solar system around the centre of the Galaxy. In this paper we search for the cause of the systematic effect and discuss the results.
Conference paper prepared for the "Journees-2007" 17-19 September 2007, France.

Tags: Conference Paper, Earth Sciences, External Publication, Published_External, geodesy
Organization: Geoscience Australia Data
Pylebung 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-SA, Orthophoto Map, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
SA Detailed Gravity Survey, 1995A6 (P199566), 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 SA Detailed Gravity Survey, 1995A6 (P199566) contains a total of 556 point data values acquired at a spacing between 40 and 200 metres. The data is located in SA and were acquired in 1995, under project No. 199566 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 199566
Organization: Geoscience Australia Data
Corrigin 1:250 000 topographic map

This map is part of the series that covers the whole of Australia at a scale of 1:250 000 (1cm on a map represents 2.5 km on the ground) and comprises 513 maps. This is the largest scale at which published topographic maps cover the entire continent. Each standard map covers an area of 1.5 degrees longitude by 1 degree latitude or about 150 kilometres from east to west and 110 kilometres from north to south. There are about 50 special maps in the series and these maps cover a non-standard area. Typically, where a map produced on standard sheet lines is largely ocean it is combined with its landward neighbour. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours (interval 50m), localities and some administrative boundaries. The topographic map and data index shows coverage of the sheets. Product Specifications Coverage: The series covers the whole of Australia with 513 maps. Currency: Ranges from 1995 to 2009. 95% of maps have a reliability date of 1994 or later. Coordinates: Geographical and either AMG or MGA (post-1993) Datum: AGD66, GDA94, AHD. Projection: Universal Traverse Mercator (UTM) Medium: Paper, flat and folded copies.

Tags: 250K scale, AU-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
GSQ Mary Kathleen 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 GSQ Mary Kathleen Elevation grid geodetic is elevation data for the Isa Region Airborne Magnetic Radiometric and DEM Survey, QLD, 2017. This survey was acquired under the project No. 1292 for the geological survey of QLD. The grid has a cell size of 9e-05 degrees (approximately 10m).  This grid contains the ground elevation relative to the geoid for the Isa Region Airborne Magnetic Radiometric and DEM Survey, QLD, 2017. 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, QLD, digital data, geoid, geophysical survey, geophysics, grid, raster, survey 1292, terrain
Organization: Geoscience Australia Data
GSQ Northern Bowen Basin Qld percent potassium grid geodetic

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 potassium grid has a cell size of 0.00096 degrees (approximately 103m) and shows potassium element concentration of the Northern Bowen Basin, Qld, 2002 in units of percent (or %). The data used to produce this grid was acquired in 2002 by the QLD Government, and consisted of 59476 line-kilometres of data at 400m line spacing and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NCI, Published_External, QLD, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, spectrometry, survey 759
Organization: Geoscience Australia Data
Canbelego 1:100,000 regolith-landform map CRC LEME

The Canbelego 1:100,000 regolith-landform map illustrates the distribution of regolith materials and the landforms on which they occur, described using the RTMAP scheme developed by Geoscience Australia

Tags: 100K scale, AU-NSW, Geological Map, Geology, Published_External, landforms, regolith
Organization: Geoscience Australia Data
Geoscience Australia Landsat 9 OLI TIRS Analysis Ready Data Collection 3

The United States Geological Survey's (USGS) Landsat satellite program has been capturing images of the Australian continent for more than 30 years. This data is highly useful for land and coastal mapping studies.

In particular, the light reflected from the Earth’s surface (surface reflectance) is important for monitoring environmental resources – such as agricultural production and mining activities – over time.

We make accurate comparisons of imagery acquired at different times, seasons and geographic locations. However, inconsistencies can arise due to variations in atmospheric conditions, sun position, sensor view angle, surface slope and surface aspect. These are reduced or removed to ensure the data is consistent and can be compared over time.

The Geoscience Australia Landsat 9 OLI TIRS Analysis Ready Data Collection 3 contains three sub-products that provide corrections or attribution information:
- DEA Surface Reflectance NBAR* (Landsat 9)
- DEA Surface Reflectance NBART** (Landsat 9)
- DEA Surface Reflectance OA*** (Landsat 9)

Note: DEA produces NBAR as part of the Landsat ARD, this is available in the National Computing Infrastructure environment only and is not available in the DEA cloud environments.

The resolution is a 30 m grid based on the USGS Landsat Collection 2 archive, or 15 m for the panchromatic band. This data forms part of the DEA Collection 3 archive. 

* Nadir corrected Bi-directional reflectance distribution function Adjusted Reflectance (NBAR)
** Nadir corrected Bi-directional reflectance distribution function Adjusted Reflectance with terrain illumination correction (NBART)
*** Observation Attributes (OA)

Tags: DEA, DEA – Digital Earth Australia, Digital Earth Australia, EARTH SCIENCES, Published_External, analysis ready data, earth observation, landsat, observation attributes, satellite imagery, surface reflectance
Organization: Geoscience Australia Data
BHP Mt Isa Gravity Survey, Qld (P199343), 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 BHP Mt Isa Gravity Survey, Qld (P199343) contains a total of 342 point data values acquired at a spacing between 320 and 2500 metres. The data is located in QLD and were acquired in 1993, under project No. 199343 for BHP Group Ltd.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, QLD, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199343
Organization: Geoscience Australia Data
Hanging Knoll 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
Williams 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
Momob 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
AUSGeoid98 v.1.0 data files: Wyloo (sf50-10)

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
Review of mapping approaches to recharge and discharge estimation

Considerable work has been carried out both in Australia and overseas on the spatial variations in recharge and discharge.  This work usually relates point measurements and modelled recharge to spatial units such as land management units or soil units.  There is also a considerable literature on the use of remote sensing and geographic information systems in mapping hydrological features including recharge and discharge zones.
This report brings together much of this work. It describes the various data that can be used at a national or finer scale as inputs to GIS-based models for spatial distribution of recharge and discharge characteristics.  These include remotely sensed satellite imagery and common remote sensing algorithms; digital elevation models; geophysical data (airborne electromagnetics, gamma-ray radiometrics); water table surface elevation mapping; climate; soil, regolith and geology; and vegetation and land cover. 
This report also describes various mapping frameworks that could be adapted to provide a spatial context for mapping the distribution of recharge-discharge characteristics including Atlas of Australian Soils, Hydrogeomorphic Units, Hydrogeological Landscapes and Groundwater Flow Systems.
It is recommended that remote sensing and GIS methods be developed for mapping recharge and discharge zones usign a variety of data from a variety of sources.  Each dataset needs to be characterised in terms of its resolution, availability and ease of use.  When combined with companion reports that review recharge and discharge estimation studies in Australia, these reports will provide the basis for the subsequent phase of the project, aimed at demonstrating methodologies for recharge/discharge estimation in data poor areas.

Tags: Earth Sciences, GA Publication, GIS, Professional Opinion, Published_External, groundwater, remote sensing
Organization: Geoscience Australia Data
Geomagnetic Magnetogram Record - Mawson Observatory (MAW)

This dataset contains scanned geomagnetic magnetogram records from Mawson Geomagnetic Observatory. Files names delineate the observatory, observation year, type of data, month range, folder and page. e.g. TOO 1985 GRAM - JUL - AUG - 73_00031 (TOO: Toolangi Observatory)(1985: Year)(GRAM: Magnetogram)(JUL - AUG: month range)(73_00031: Folder and page). Files are stored as station and year based PDF and individual tiff files per page.

Tags: EARTH SCIENCES, Magnetism and Palaeomagnetism, Mesospheric, Ionospheric and Magnetospheric Physics, Published_External
Organization: Geoscience Australia Data
Groote Eylandt Special 1:250 000 topographic map

This map is part of the series that covers the whole of Australia at a scale of 1:250 000 (1cm on a map represents 2.5 km on the ground) and comprises 513 maps. This is the largest scale at which published topographic maps cover the entire continent. Each standard map covers an area of 1.5 degrees longitude by 1 degree latitude or about 150 kilometres from east to west and 110 kilometres from north to south. There are about 50 special maps in the series and these maps cover a non-standard area. Typically, where a map produced on standard sheet lines is largely ocean it is combined with its landward neighbour. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours (interval 50m), localities and some administrative boundaries. The topographic map and data index shows coverage of the sheets. Product Specifications Coverage: The series covers the whole of Australia with 513 maps. Currency: Ranges from 1995 to 2009. 95% of maps have a reliability date of 1994 or later. Coordinates: Geographical and either AMG or MGA (post-1993) Datum: AGD66, GDA94, AHD. Projection: Universal Traverse Mercator (UTM) Medium: Paper, flat and folded copies.

Tags: 250K scale, AU-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Middle Pilbara 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 Middle Pilbara elevation grid geodetic is elevation data for the Middle Pilbara, WA, 1996. This survey was acquired under the project No. 648 for the geological survey of WA. The grid has a cell size of 0.00083 degrees (approximately 89m).  This grid contains the ground elevation relative to the geoid for the Middle Pilbara, WA, 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, Published_External, WA, digital data, geoid, geophysical survey, geophysics, grid, raster, survey 648, terrain
Organization: Geoscience Australia Data
Von Treuer 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
The mineral potential of the Arunta Block, central Australia

The Arunta Block is the mass of Precambrian basement rocks in the southern part of the Northern Territory of Australia. It comprises an early Proterozoic (or older) discontinuous sequence of sedimentary and volcanic rocks that were multiply deformed and initially metamorphosed 1800-1700 m.y. ago, and numerous granite masses that intruded the metamorphic rocks from 1700 to 1000 m.y. The metavolcanic rocks are concentrated in the lower part of the sequence, and the sedimentary rocks become more mature and better differentiated towards the top of the sequence. One carbonatite and a mantle-derived intrusion of kimberlitic affinity are located near a major crustal lineament in the east of the Block. Mineral occurrences as presently known are small and in general uneconomic; only one small mine was operating in 1976. The occurrences can be grouped into the following types: I - Stratabound: copper-lead-zinc in metasediments in the lower and middle parts of the sequence; 2 - Pegmatitic: mainly copper, tin, tungsten, and tantalum derived from granite, and mica in pegmatites formed by partial melting of meta-sediments; 3 - Metasomatic: tungsten, molybdenum, and minor copper in calc-silicate rocks adjacent to granite; 4 - Hydrothermal: gold in a zone of late Palaeozoic deformation and retrogressive metamorphism, and fluorite-barite veins in zones of late Palaeozoic warping; 5 - Magmatic: very minor copper, nickel, and chromium, in mafic and ultramafic rocks; and 6 - Weathering: manganese and uranium in superficial Phanerozoic rocks. The mineral occurrences are areaIIy distributed in two zones which are directly related to the distribution of major rock-types in the Block. The stratabound occurrences in the lower part of the sequence, magmatic occurrences, mica pegmatites, and hydrothermal gold deposits are located in the southern part of the Block; the stratabound occurrences in the middle part of the sequence, metal-bearing pegmatites, metasomatic occurrences, and hydrothermal fluorite-barite veins are located in the north. In terms of future prospects, stratabound base-metal lodes in the lower part of the sequence, metasomatic tungsten, and superficial uranium are the most likely candidates for economic success. Diamonds, rare earth elements, and niobium, as yet undiscovered, are possibilities along or near the major lineament in the east of the Block. The Arunta Block shows marked geological resemblances to The Granites-Tanami, Tennant Creek, and Willyama Blocks in Australia, and to the Precambrian rocks of the Baltic and East African regions. All these regions are economically mineralized to some degree, and this, together with its own mineralization, suggests that the Arunta Block holds some potential for economic deposits. How much is a matter for further exploration and assessment.

Tags: Earth Sciences, GA Publication, Journal, NT, Published_External, WA
Organization: Geoscience Australia Data
Informing seismic hazard with geodesy & remote-sensing from Türkiye to Central Asia

COMET (The Centre for Observation and Modelling of Earthquakes, Volcanoes and Tectonics) uses satellite measurements alongside ground-based observations and geophysical models to study active faults and earthquakes. This talk provides an overview of COMET research products in Türkiye and Central Asia, where interseismic deformation and active faults are directly observable. It also touches on how these products highlight the complexity and difficulty of seismic hazard modelling in Australia.&nbsp;
Three COMET datasets will be discussed, which each contribute to seismic hazard models. Researchers at COMET have and continue to pioneer INSAR methods including co-seismic interferograms and time-series modelling. For example, the Türkiye (Türkiye) INSAR strain-rate map directly estimates strain-accumulation across faults, while the LICSAR portal and satellite cross-correlation methods are used to quantify co-seismic and post-seismic deformation (including after the devastating 2023 Türkiye-Syria earthquake).&nbsp;
Similar methods are applied in the Tien Shan, where active faults are identifiable in satellite imagery and elevation data, but rates of activity are uncertain and expensive to obtain through field work. Here COMET and GEM (the Global Earthquake Model) are collaborating to produce block-model informed PSHA inputs using active fault databases, GNSS, and INSAR.&nbsp;
While these methods are useful in tectonically active regions, they serve to highlight the difficulties facing Australian seismic hazard modelling where similar methods cannot be used due to low (to unobservable) tectonic strain and very long fault recurrence.&nbsp;
This paper was presented to the 2023 Australian Earthquake Engineering Conference 23-25 November 2023 (https://aees.org.au/aees-conference-2023/)

Tags: Australia, Geodesy, InSAR, Published_External, active fault, central asia, geodesy, seismic hazard, turkey
Organization: Geoscience Australia Data