AndreaBozzo/ceres-open-data-index huggingface dataset:
MRTAS Lisle 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 MRTAS Lisle tmi grid geodetic has a cell size of 0.0005 degrees (approximately 49m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1983 by the TAS Government, and consisted of 1073 line-kilometres of data at 200m line spacing and 70m 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 780, total magnetic intensity
Organization: Geoscience Australia Data
Charnley 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The R502 series of maps has been replaced by the National Topographic Map Series (NTMS).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
The role of eddy covariance in atmospheric monitoring of CO2 leaks

Eddy Covariance (EC) is considered a key atmospheric technique for quantifying  CO2 leakage. However the complex and localised heterogeneity of a CO2 leak above the background environmental signal violates several of the critical assumptions made when implementing the EC technique, including:

That horizontal gradients in CO2 concentration are zero.
That horizontal and vertical gradients in the covariance of CO2 and orthogonal wind directions are zero. 

The ability of EC measurements of CO2 flux at the surface to provide information on the location and strength of CO2 leakage from below ground stores was tested during a 144 kg/day release event (27 March  - 13 June 2012) at the Ginninderra controlled release facility.
We show that the direction of the leak can be ascertained with some confidence although this depends on leak strength and distance from leak. Elevated CO2 levels are seen in the direction of the leakage area, however quantifying the emissions is confounded by the potential bias within each measurement through breaching of the assumptions underpinning the EC technique.
The CO2 flux due to advection of the horizontal CO2 concentration gradients, thought to be the largest component of the error with the violation of the EC  technique's assumptions, has been estimated using the modelling software Windtrax. The magnitude of the CO2 flux due to advection is then compared with the measured CO2 flux measured using the EC technique, to provide an initial assessment of the suitability of the EC technique to quantifying leakage source rates.
Presented at the 2013 CO2CRC Research Symposium

Tags: EARTH SCIENCES, Published_External, carbon dioxide, greenhouse gas emissions, wind
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (sd51-14)

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
Tualta 1:100 000 unpublished topographic map

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

Tags: 100K unpublished, AU-QLD, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Perplexity 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-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
GSWA Yowalga Sub Basin potassium grid geodetic

This GSWA Yowalga Sub Basin potassium grid geodetic is an airborne-derived radiometric potassium window countrate grid for the Yowalga Sub-Basin, WA, 1995-1996 survey. 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 GSWA Yowalga Sub Basin potassium grid geodetic radiometric potassium window countrate grid has a cell size of 0.001 degrees (approximately 105m). The data are in units of counts per second (cps). The data used to produce this grid was acquired in 1995 by the WA Government, and consisted of 87401 line-kilometres of data at 500m line spacing and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NCI, Published_External, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, spectrometry, survey 916, window countrate
Organization: Geoscience Australia Data
Browne 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
Towards Improving ML Estimates for Local Earthquakes Made by Geoscience Australia’s Earthquake Monitoring System

Here we undertake a statistical analysis of local magnitudes (ML) calculated using the two real-time earthquake monitoring software platforms use by Geoscience Australia (GA) since 2005, Antelope and Seiscomp. We examine a database of just over 10 years duration, during a period in which both systems were in operation and over 4000 earthquakes were located and magnitudes estimated. We examine the consistency of both single-station and network ML estimates of both systems, with a view toward determining guidelines for combining them into a single catalogue, as well as for determining best practice in the for the estimation of local magnitudes for regions of sparse seismic networks. Once this guidance has been developed, it is the intention of GA to re-process magnitudes for all earthquakes using a consistent approach where digital data are available and can be integrated within the currently-used  SeisComP system.
This paper was presented at the Australian Earthquake Engineering Society 2021 Virtual Conference, Nov 25 – 26.

Tags: EARTH SCIENCES, Earthquake Catalogue, Earthquake Engineering, Earthquake Hazard, Earthquake Magnitudes, Natural Hazards, Published_External
Organization: Geoscience Australia Data
Ayr-St Lawrence, QLD, AIRDATA, 1996 (P796), 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 Ayr-St Lawrence, QLD, AIRDATA, 1996 (P796), radiometric line data, AWAGS levelled were acquired in 1995 by the QLD Government, and consisted of 108435 line-kilometres of data at 400m 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, NASVD, Published_External, QLD, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 796, thorium, uranium, vector
Organization: Geoscience Australia Data
The 2017 Australian GNSS CORS Position Verification Analysis

This report details the results of the 2017 Australian GNSS CORS Position Verification Analysis that has led to the creation of certificates of verification of the reference standard of measurement for position in accordance with Regulation 13 of the National Measurement Regulations 1999, National Measurement Act 1960. Our analysis of the Asia Pacific Reference Frame (APREF) CORS stations located on the Australian Plate has been aligned to a set of extended 109 Australian Fiducial Network stations with recognized value standard for position in Australia with Geocentric Datum of Australia (GDA2020) coordinates (refer to National Measurement Act 1960 - Recognized-value standard of measurement of position determination 2017 F2017L01352 https://www.legislation.gov.au/Details/F2017L01352 ). GDA2020 coordinates and uncertainties are reported.

Tags: Earth Sciences, GPS GDA2020 Regulation 13, Published_External
Organization: Geoscience Australia Data
Candler 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
Waddy Point 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
Mcintosh 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
TEISA - Area C, SA, 1999 (P852), 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 TEISA - Area C, SA, 1999 (P852), radiometric line data, AWAGS levelled were acquired in 1999 by the SA Government, and consisted of 15702 line-kilometres of data at 400m 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, NASVD, Published_External, SA, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 852, thorium, uranium, vector
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Coffs Harbour (sh56-12)

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
Does the Phoenix South 1 oil represent an extension of the Lower Triassic petroleum system of the Perth Basin?

In 2014, the surprise discovery of oil in the well Phoenix South 1 on Australia’s North West Shelf (NWS) heralded the Bedout Sub-basin as Australia’s new petroleum province. The well had initially targeted gas in Triassic reservoirs of the Keraudren Formation and Locker Shale but unexpectedly encountered oil instead. This has fuelled a revival of exploration in the area with subsequent wells Roc 1, Roc 2, Phoenix South 2 and Dorado 1 all successful in penetrating hydrocarbon columns. The Phoenix South 1 accumulation is significant as it demonstrates the occurrence of an effective oil-prone source rock within the Lower–Middle Triassic for the first time on the NWS. It also raised the possibility that a source rock analogue to the Hovea Member of the Lopingian–Lower Triassic Kockatea Shale, a well-established source of oil and gas in the northern Perth Basin, may also be effective on the NWS.
In order to understand the origin of the Phoenix South 1 accumulation, its geochemical composition was compared to those of Triassic-sourced oils from the Perth Basin and petroleum fluids from the neighbouring Browse Basin, and Beagle and Dampier sub-basins.

Tags: Organic Geochemistry, Petroleum, Published_External, Roebuck Basin
Organization: Geoscience Australia Data
Ouyen Infill (P199732), 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 Ouyen Infill (P199732) contains a total of 2661 point data values acquired at a spacing of 800 metres. The data is located in VIC and were acquired in 1997, under project No. 199732 for None.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, VIC, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199732
Organization: Geoscience Australia Data
Exploring for the Future update - new data and information from northern Australia

The Exploring for the Future program (EFTF) is a $225M Federal Government-funded initiative spanning the period July 2016 to June 2024. This multi-disciplinary program involves aspects of method development and new pre-competitive data acquisition at a variety of scales, with the aim of building an integrated understanding of Australia’s mineral, energy and groundwater potential. Significant work has been undertaken across northern Australia within regional-scale projects and as part of national-scale data acquisition and mapping activities. Some of these activities have been largely completed, and have generated new data and products, while others are ongoing. A comprehensive overview of the EFTF program can be found via the program website (eftf.ga.gov.au). Here, we overview a range of activities with implications for resource exploration in the Northern Territory.

This Abstract was submitted &amp; presented to the 2023 Annual Geoscience Exploration Seminar (AGES), Alice Springs (https://industry.nt.gov.au/news/2022/december/registrations-open-for-ages-2023)

Tags: Australia’s Resources Framework, Barkly-Isa-Georgetown, EFTF – Exploring for the Future, Exploring for the Future (EFTF), Geology, Northern Territory, Precompetitive Data, Published_External
Organization: Geoscience Australia Data
Blackstone WA Gravity Survey (P200663), 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 Blackstone WA Gravity Survey (P200663) contains a total of 309 point data values acquired at a spacing between 2000 and 3000 metres. The data is located in WA and were acquired in 2006, under project No. 200663 for None.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 200663
Organization: Geoscience Australia Data
Tarcoola 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_SA, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data