AndreaBozzo/ceres-open-data-index huggingface dataset:
1 second SRTM Level 2 Derived Smoothed Digital Elevation Model (DEM-S) version 1.0

The 1 second Shuttle Radar Topographic Mission (SRTM) derived smoothed Digital Elevation Model (DEM-S) Version 1.0 is a 1 arc second (~30m) gridded smoothed version of the DEM (ANZCW0703013355). The DEM-S represents ground surface topography, excluding vegetation features, and has been smoothed to reduce noise and improve the representation of surface shape. The dataset was derived from the 1 second Digital Elevation Model Version 1.0 (DSM; ANZCW0703013336) by an adaptive smoothing process that applies more smoothing in flatter areas than hilly areas, and more smoothing in noisier areas than in less noisy areas. This DEM-S supports calculation of local terrain shape attributes such as slope, aspect and curvatures that could not be reliably derived from the unsmoothed DEM because of noise. A full description of the methods is in progress (Gallant et al., in prep) and in the User Guide (Geoscience Australia &amp; CSIRO, 2010).

Tags: AU, DEM, DEM topographic, Published_External, Topology, digital elevation data, hydrology, land cover, mapping
Organization: Geoscience Australia Data
NSW DMR, Discovery 2000, 1994-95, AREA A3, Bancannia Trough (P730), 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 NSW DMR, Discovery 2000, 1994-95, AREA A3, Bancannia Trough (P730), radiometric line data, AWAGS levelled were acquired in 1995 by the NSW Government, and consisted of 21000 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, NSW, Published_External, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 730, thorium, uranium, vector
Organization: Geoscience Australia Data
Swan Reach 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-SA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
ACT Fossil Emblem Candidate #3, 3D model of Gravicalymene coppinsensis, CPC:20142

This product is a rendered 3D model of one of the five ACT fossil emblem candidates, the trilobite Gravicalymene coppinsensis. The format of the file is ply. or Polygon File Format, and it is designed to store 3D data. The model requires no post-scanning manipulation as it is already complete. The purpose of this is to make this file format publicly available to local school communities so they can 3D print the fossil emblems themselves and engage students with Earth science related topics.
Acknowledgement:
Computed Tomography (CT) Scans and models generated at CTLab - National Laboratory for X-Ray Micro Computed Tomography, Research School of Physics, The Australian National University (ANU), Canberra.

Tags: 3D Model, ACT Fossil Emblem, EARTH SCIENCES, Fossils, Published_External
Organization: Geoscience Australia Data
Hodgson Downs 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_NT, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Geoscience Australia Marine Survey GA0332 (SS05/2011): Natural hydrocarbon seepage survey of the offshore northern Perth Basin - %Carbonate and specific surface areas of seabed sediments.

In September and October of 2011 Geoscience Australia surveyed part of the offshore northern Perth Basin in order to map potential sites of natural hydrocarbon seepage. The primary objectives of the survey were to map the spatial distribution of seepage sites and characterise the nature of the seepage at these sites (gas vs oil, macroseepage vs microseepage; palaeo vs modern day seepage) on the basis of: acoustic signatures in the water column, shallow subsurface and on the seabed; geochemical signatures in rock and sediment samples and the water column; and biological signatures on the seabed. Areas of potential natural hydrocarbon seepage that were surveyed included proven (drilled) oil and gas accumulations, a breached structure, undrilled hydrocarbon prospects, and areas with potential signatures of fluid seepage identified in seismic, satellite remote sensing and multibeam bathymetry data. Within each of these areas the survey acquired: water column measurements with the CTD; acoustic data with single- and multi-beam echosounders, sidescan sonar and sub-bottom profiler (sidescan not acquired in Area F as it was too deep in places); and sediment and biological samples with the Smith-McIntyre Grab. In addition, data were collected with a remotely operated vehicle (ROV), integrated hydrocarbon sensor array, and CO2 sensor in selected areas. Sampling with the gravity corer had limited success in many of the more shallow areas (A-E) due to the coarse sandy nature of the seabed sediments. This data set comprises carbonate and specific surface area measurements in the upper 2cm of seabed sediments.

Tags: AU-WA, Marine Data, Marine Geoscience, Published_External, continental shelf, geochemistry, marine, marine survey, seabed
Organization: Geoscience Australia Data
Kingaroy 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
L048 Southern Surat Basin seismic reflection and refraction survey, QLD, 1961

During 1961 in the southern part of the Surat Basin a seismic party from the Bureau of Mineral Resources surveyed two main traverses by means of seismic reflection and refraction methods; the first was in an east-west direction between Yelarbon and St George and the second was in a north-south direction between Meandarra and Nome. The main purposes of the survey were to find whether the Bowen Basin Permian sediments extend as far south as the latitude of Goondiwindi and whether the Bowen Basin in Queensland and the Sydney Basin in New South Wales formed a continuous region of sedimentation during the Permian period. The east-west seismic traverse indicated a trough of sediments of greatest thickness,tabout 14,800 ft beneath Toobeah; the trough is bounded on the eastorn side at Goondiwindi by a fault down-thrown more than 7000 ft to the west and is bounded on the western side by a series of step.-faults beneath Bungunya and Talweod. The results along the north-south traverse indicated that the trough beneath Meandarra, which represents the southern extension of the Bowen Basin, continues south to Toobeah. The nature of the link, if any, between the Bowen Basin and the Sydney Basin was not established. On the eastern side of the Surat Basin, seismic results indicated that the rocks beneath the Mesozoic sediments are stratified and probably metamorphic. A shelf area between Talweod and St George has about 6000 ft of sediments above a Drobablo metamorphic 'basement'. An anticlinal structure with a dip-reversal of about 1000 ft throw was located between Goondiwindi and Toobeah.

Tags: AU-QLD, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, geophysics, petroleum exploration, seismic reflection, seismic refraction, seismic velocity
Organization: Geoscience Australia Data
Evaluation of SAR radiometric terrain correction products over Australia and Antarctica

Building a Synthetic Aperture Radar (SAR) Earth Observation capability is a current focus for Geoscience Australia’s Digital Earth Australia and Antarctica programs. The Committee on Earth Observation Satellites (CEOS) recommends the delivery of a normalised radiometrically terrain corrected Gamma Nought (γ0) backscatter (NRB) product as Analysis Ready Data (ARD). Generating NRB is not straightforward, requiring complex geocoding of Single-Look Complex (SLC) files to ground coordinates, data processing to γ0 backscatter, geometric terrain correction and radiometric terrain correction. The GAMMA and SNAP processing software packages are widely used to generate SAR NRB ARD. These software packages provide the backend processing to modern SAR NRB ARD workflows including the S1_NRB (SNAP), PyroSAR (SNAP or GAMMA) and the Alaskan Satellite Facility’s Hyp3 (GAMMA) software packages. Recently, a new area-based projection method has been developed by the NASA Jet Propulsion Laboratory, which aims to improve the accuracy and speed of the geocoding and radiometric terrain correction processes. This method has been implemented in the InSAR Scientific Computing Environment (ISCE-3) processing software and a new OPERA-RTC (ISCE-3) ARD workflow which will be used to produce ARD from the upcoming NASA-ISRO SAR (NISAR) mission. 
&nbsp;
In this presentation we introduce an evaluation framework to assess various ARD workflows based on the radiometric, geometric, and geolocation quality of NRB products. The framework builds on previous evaluation studies and links quantitative metrics to qualitative differences in processing methodology. Our evaluation enables users to rationalise observed differences between products, building trust in the quality of ARD products. We will present our assessment of the quality of NRB ARD products for Australia and Antarctica built on GAMMA, SNAP and ISCE-3 workflows, including the application of the atmospheric corrections from the Extended Timing Annotation Dataset (ETAD). Our results demonstrate the benefits provided by a new area-based projection method and ETAD products in an Australian and Antarctic context. This forms a reproducible rationale for our Digital Earth programs when implementing continental-scale processing pipelines for the Sentinel-1 and forthcoming NISAR missions.

Presented at the 2024 Advancing Earth Observation Forum (AEO)

Tags: AEO Forum, DEA – Digital Earth Australia, Digital Earth Antarctica, Other earth sciences not elsewhere classified, SAR, abstract
Organization: Geoscience Australia Data
GSWA Kauring Merged 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 GSWA Kauring Merged Elevation Grid Geodetic is elevation data for the Kauring (Moora, Corrigin) merge, 2011-2012. This survey was acquired under the project No. 1336 for the geological survey of WA. The grid has a cell size of 0.0002 degrees (approximately 21m).  This grid contains the ground elevation relative to the geoid for the Kauring (Moora, Corrigin) merge, 2011-2012. 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 1336, terrain
Organization: Geoscience Australia Data
Collie Area Gravity 1982-1991 (P198959), 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 Collie Area Gravity 1982-1991 (P198959) contains a total of 235 point data values acquired at a spacing of 1000 metres. The data is located in WA and were acquired in 1989, under project No. 198959 for Geological Survey of Western Australia (GSWA).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 198959
Organization: Geoscience Australia Data
GSWA P1177 Kojonup ppmth 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 thorium grid has a cell size of 0.00083 degrees (approximately 85m) and shows thorium element concentration of the Dumbleyung (SWCC), WA, 2008 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2008 by the WA Government, and consisted of 75805 line-kilometres of data at a line spacing between 100m and 400m, and 60m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, NCI, Published_External, Th, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, rad, radiometrics, raster, spectrometry, survey 1177, thorium
Organization: Geoscience Australia Data
Molong 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-NSW, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Eucla Gawler Deep Crustal Seismic Gravity Survey (P201363), 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 Eucla Gawler Deep Crustal Seismic Gravity Survey (P201363) contains a total of 2086 point data values acquired at a spacing of 400 metres. The data is located in SA, WA and were acquired in 2013, under project No. 201363 for Geoscience Australia.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, WA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 201363
Organization: Geoscience Australia Data
Alligator River, NT, 1976 (P1017), 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 Alligator River, NT, 1976 survey were acquired in 1976 by the NT Government, and consisted of 21576 line-kilometres of data at 300m 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 1017, vector
Organization: Geoscience Australia Data
AUSGEO news September 2004 Issue No 75

Summer approaches and with it, we hope some much-needed rain. Some of our readers overseas have been getting too much rain and with it floods that are exacting a heavy toll. We sympathise because Australian floods generally have a big price; in 1974 alone they cost Australia $2.9 billion. 
Even though floods are the most costly natural disaster for us, there are many others that affect Australia. The Australian Government wants to reduce the social and economic impacts of natural disasters and has been considering how they can be better managed. 
A review commissioned by the Council of Australian Governments, `Natural Disaster Relief and Mitigation Arrangements in Australia highlighted a desperate need to improve disaster mitigation. The review provides Geoscience Australia with a clearly defined role in helping the Australian
Government to develop and implement a five-year national program of disaster risk assessments. 
Geoscience Australia already had strong formal responsibilities for natural disaster monitoring and advice. Its activities include monitoring regional earthquake activity, global nuclear activity, and geomagnetic space weather, and providing alerts of geomagnetic activity that can affect
communications and space craft. It also maintains the geodetic framework that supports all spatial information and associated applications in Australia and its offshore territories. 
It was logical therefore to establish a new Geohazards Division that not only builds on this important work, but uses its know-how and tools to identify and apply innovative research to such national issues as security and critical infrastructure protection. This is an exciting direction for the organisation. 
The Geohazards Division develops risk-assessment models and tools, and databases of the built environment, critical infrastructure and lifelines. The division is at the forefront in preparing advanced visualisation techniques to explore the data and models. It constantly highlights the crucial and expanding application of spatial information to broader and previously unimagined social, economic, environmental and security issues. Information about some of these activities is published in this issue of AusGeo News. 
The reform of natural hazard management in Australia presents significant challenges. It is a
complex issue that requires a focused and strategic approach from all levels of government. 
Geoscience Australia looks forward to working with other contributors in this initiative to develop a truly significant and worthwhile outcome that will ensure we better understand the relationship between our Earth and the built environment.

Tags: Earth Sciences, GA Publication, Published_External
Organization: Geoscience Australia Data
Mitchiebo 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-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data