AndreaBozzo/ceres-open-data-index huggingface dataset:
Arafura 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 Unpublished maps are available as compilations.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
Point Cloates 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
Geology of the Kimberley region, Western Australia: The East Kimberley

Kimberley region is the name given to the rugged northern extremity of Western Australia, a large part of which is composed of Precambrian rocks. The area was mapped by combined teams of Bureau of Mineral Resources and Geological Survey of Western Australia geologists between 1962 and 1967: the results of the first three years' mapping of the southeastern part of the Kimberley region are given in this Bulletin. Isotopic age determinations were made on rocks throughout the Precambrian successions, and this has proved a valuable adjunct to the mapping.

Tags: AU-WA, Bulletin, Earth Sciences, GA Publication, Published_External, geology
Organization: Geoscience Australia Data
Larkin 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
EDM Height Traversing Levelling Survey Report: Pohnpei, Federated States of Micronesia, August 2012

This report outlines the levelling survey completed during the visit to Pohnpei, Federated States of Micronesia (FSM) from 2nd to 9th August 2012.

Tags: Earth Sciences, GA Publication, Published_External, Record
Organization: Geoscience Australia Data
Australian National Wind Multiplier Data Collection

Wind multipliers are factors that transform wind speeds over open, flat terrain (regional wind speeds) to local wind speeds that consider the effects of direction, terrain (surface roughness), shielding (buildings and structures) and topography (hills and ridges). During the assessment of local wind hazards (spatial significance in the order 10's of metres), wind multipliers allow for regional wind speeds (order 10 to 100's of kilometres) to be factored to provide local wind speeds. 
Value: The wind multiplier data is used in modelling the impacts (i.e. physical damage) of wind-related events such as tropical cyclones (an input for Tropical Cyclone Risk assessment), thunderstorms and other windstorms. 
Scope: Includes terrain, shielding and topographic multipliers for national coverage. Each multiplier further contains 8 directions.

Tags: AS/NZS 1170.2, DC2020, HVC - High Value Collection, HVC_144645, Impact, Natural Hazards, Published_External, Surface roughness, Terrain, Topography, Wind
Organization: Geoscience Australia Data
Mount Mccormack 1:50 000 topographic map

Product Specifications Coverage: Partial coverage, predominantly in northern Australia, along major transport routes, and other selected areas. About 1000 maps have been published to date. Currency: Ranges from 1968 to 2006. Coordinates: Geographical and UTM. Datum: AGD66, new edition WGS84; AHD. Projection: Universal Transverse Mercator UTM. Medium: Paper, flat copies only.

Tags: 50K scale, AU-QLD, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Dubbo-Werris Creek Gravity (P196538), 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 Dubbo-Werris Creek Gravity (P196538) contains a total of 68 point data values acquired at a spacing between 1000 and 3000 metres. The data is located in NSW and were acquired in 1965, under project No. 196538 for Department of Mines (New South Wales).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 196538
Organization: Geoscience Australia Data
P13, Tennant Creek Area, NT (P199282), 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 P13, Tennant Creek Area, NT (P199282) contains a total of 33 point data values acquired at a spacing between 50 and 650 metres. The data is located in NT and were acquired in 1992, under project No. 199282 for Giants Reef Mining Pty Ltd.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NT, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199282
Organization: Geoscience Australia Data
AusBathyTopo (Williams Ridge) 100m 2022 - A regional-scale depth model (20220005C)

This dataset contains a bathymetry (depth) grid of the Williams Ridge region, southeast Indian Ocean, at 100 metre resolution produced from the compilation of all available source data. These data include single beam echo sounder bathymetry data supplied by the Australian Hydrographic Office to generate the general depth model, and deep-water multibeam bathymetry data to reveal the complexity of the seafloor on Williams Ridge, Kerguelen Plateau and the surrounding abyssal plains and basins. Multibeam bathymetry data were collected during systematic surveys over Williams Ridge by Research Vessel (RV) Investigator in 2020 and RV Sonne, and on vessel transits that crossed through the region. The RV Investigator survey also collected seismic, magnetic and gravity data, and rock samples to provide new knowledge of the geological and tectonic evolution of the region (see www.mnf.csiro.au/en/voyages/IN2020_V01). Austral Fisheries also provided crowdsourced bathymetry (CSB) data from fishing vessels collected using single beam echo sounders. These fishing vessels operate within the Kerguelen Plateau and Williams Ridge region licenced under the Conservation of Antarctic Marine Living Resources. Austral Fisheries CSB data were provided to the Australian Antarctic Division for restricted use in this compilation product. All source multibeam and single beam bathymetry data were edited as 3D point clouds to remove anomalous noise, and given a consistent WGS84 horizontal datum, and where possible, an approximate MSL vertical datum prior to the grid interpolation process. This dataset was developed to support the management of Australia’s marine jurisdiction and is published with permission of the CEO, Geoscience Australia. This dataset is not to be used for navigational purposes

Tags: AusSeabed, Bathymetry, Compilation, Continental shelf, Crowd-sourced Bathymetry, DEM, EARTH SCIENCES, HVC_146413, Marine, Multibeam, Published_External, SRTM, Singlebeam
Organization: Geoscience Australia Data
The occurrence of extended tricyclic terpanes in the Proterozoic and Paleozoic

The C19-C26 tricyclic terpanes are ubiquitous in oils and bitumens from a range of depositional environments and throughout the geological record. The percursor molecule and biological source of this series of biomarkers is unknown but, they constitute a large proportion of organic matter, highlighting the biological sources’ ecological significance. Ratios of particular homologs are utilized to distinguish source rocks, assess post-depositional microbial degradation and to reconstruct paleo-environmental conditions [1], [2]. The C19-C26 tricyclic terpanes are frequently described in the literature, however there is little known about the occurrence of the extended tricyclic terpane series (C27-C54) through geological history. Previous reports of the extended tricyclic terpanes are  restricted to the Phanerzoic Eon and there is ongoing debate about their paleoenvironmental and biological interpretations [3],[4]. 
Here we present the first report ofindigenous tricyclic terpanes ranging from the Paleoproterozoic to the early Paleozoic Era. Extended tricyclic terpanes (>C27) were detected in almost every sample analysed, highlighting their potential as paleoenvironmental parameters. Furthermore, our data infers a possible link between the extended tricyclic terpanes and salinity and we will propose a novel parameter to describe this relationship. We will also offer speculation about the biological source of these enigmatic orphan biomarkers.  
[1] J. E. Zumberge, “Terpenoid biomarker distributions in low maturity crude oils,” Org. Geochem., vol. 11, no. 6, pp. 479–496, 1987. [2]    S. Tao, C. Wang, J. Du, L. Liu, and Z. Chen, “Geochemical application of tricyclic and tetracyclic terpanes biomarkers in crude oils of NW China,” Mar. Pet. Geol., 2015. [3] S. M. B. De Grande, F. R. Aquino Neto, and M. R. Mello, “Extended tricyclic terpanes in sediments and petroleums,” Org. Geochem., vol. 20, no. 7, pp. 1039–1047, 1993. [4] S. Dutta, P. F. Greenwood, R. Brocke, R. G. Schaefer, and U. Mann, “New insights into the relationship between Tasmanites and tricyclic terpenoids,” Org. Geochem., vol. 37, no. 1, pp. 117–127, Jan. 2006.

Presented at the 2019 Goldschmidt Conference

Tags: Biomarkers, EARTH SCIENCES, Extended tricyclic terpanes, Palaeoenvironment, Petroleum, Published_External
Organization: Geoscience Australia Data
Canberra 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-ACT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Hartog Offshore Resource Map Series

Bathymetric map showing geological features with contours in metres. Includes Australian Fishing zone limit, seismic survey lines, petroleum exploration wells, for seabed west of Shark Bay and Dirk Hartog Island.
Index to adjoining sheets, reliability diagram and locality map.
Project coordination by C.R. Johnston, J. Williams, B. Willington ; data compilation D. Jongsma.
"A joint project of the Hydrographic Service, RAN, Department of Defence, the Bureau of Resource Sciences and the Australian Geological Survey Organisation".

Tags: AU-WA, Bathymetry Map, Marine Geoscience, Marine Map, Published_External, marine
Organization: Geoscience Australia Data
Barkly - Nicholson, NT, 2001 (P1018), 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 Barkly - Nicholson, NT, 2001 (P1018), radiometric line data, AWAGS levelled were acquired in 2001 by the NT Government, and consisted of 301463 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, NT, Published_External, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 1018, thorium, uranium, vector
Organization: Geoscience Australia Data
Development of new Australian magnitude conversion equations and its effects on seismic hazard analyses

All modern ground motion prediction equations (GMPEs) are now calibrated to the moment magnitude scale MW, it is therefore essential that earthquake rates are also expressed in terms of moment magnitudes for probabilistic seismic hazard analyses. However, MW is not routinely estimated for earthquakes in Australia because of Australia’s low-to-moderate level of seismicity, coupled with the relatively sparse seismic recording networks. As a result, the Australian seismic catalogue has magnitude measures mainly based on local magnitudes, ML. To homogenise the earthquake catalogue based on a uniform MW, a “reference catalogue” that includes earthquakes with available MW estimates was compiled. This catalogue consists of 240 earthquakes with original MW values between 2.0 and 6.58. The reference catalogue served as the basis for the development of magnitude conversion equations between MW and ML. The conversions are developed using general orthogonal regression. Different functional forms for the conversion equations were considered and their impact on seismic hazard is explored. Synthetic earthquake catalogues with a “known” ­b-value are generated about an arbitrary location. These catalogues are subsequently perturbed according to different magnitude adjustment assumptions. It is found that the results of seismic hazard analyses at our site are sensitive to the implementation algorithm of such equations. For the considered scenario, the results show a 20-40% reduction in PGA hazard (at the 10% in 50-year probability of exceedance level), depending on the selection of the functional form as well as the method for applying the magnitude conversion equations. 
Presented at the 2018 Seismological Society of America (SSA) Annual Meeting

Tags: EARTH SCIENCES, Published_External, earthquake, ground motion prediction equations - GMPEs, probabilistic seismic hazard analyses - PSHA
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (si52-03)

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
AHO Reference Surfaces Rottnest 0.5m 2023 (20230019R)

The Rottnest Reference Surface was created from a bathymetry survey acquired for the Australian Hydrographic Office (AHO) on 11 December 2022. This surface was created from a contracted national reference survey adjacent to Rottnest Island, WA, collected for the purpose of calibrating multibeam echosounders. It was conducted for the Australian Hydrographic Office as part of the Hydroscheme Industry Partnership Program, using a Kongsberg EM2040P and processed using Caris HIPS & SIPS. Separate grids in 0.5m and 2m resolution are provided for the two surveyed sites within this survey area in MSL, LAT and Ellipsoid vertical datums. The datasets were exported as 0.5m and 2m resolution, 32-bit floating point GeoTIFF grids.

This dataset is not to be used for navigational purposes.


Tags: AusSeabed, EARTH SCIENCES, Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry, HVC_144641, Multibeam, Oceans, Published_External, bathymetric grids, bathymetry
Organization: Geoscience Australia Data
GSWA Widgiemooltha South Thorium 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 0.00021 degrees (approximately 21m) and shows thorium element concentration of the Widgiemooltha South, WA, 2012 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2012 by the WA Government, and consisted of 131391 line-kilometres of data at 100m line spacing and 50m 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 1256, thorium
Organization: Geoscience Australia Data
Darwin Harbour Habitat Mapping Program: Predicted surface of Total O2 Uptake in sediments

This resource contains a predicted total O2 uptake grid for the greater Darwin Harbour region as part of a baseline seabed mapping program of Darwin Harbour and Bynoe Harbour. This project was funded through offset funds provided by an INPEX-led Ichthys LNG Project to the Northern Territory Government’s Department of Environment and Natural Resources (NTG-DENR) with co-investment from Geoscience Australia (GA) and the Australian Institute of Marine Science (AIMS). The intent of this program is to improve knowledge of the marine environments in the Darwin and Bynoe Harbour regions by collating and collecting baseline data that enable the creation of thematic habitat maps and information to underpin marine resource management decisions. The predicted total O2 uptake grid was derived from a compilation of multiple surveys undertaken by GA, AIMS and NTG-DENR between 2011 and 2017, including GA0333 (Siwabessy et al., 2015), GA0341 (Siwabessy et al., 2015), GA0351/SOL6187 (Siwabessy et al., 2016), GA4452/SOL6432 (Siwabessy et al., 2017), GA0356 (Radke et al., 2017), and GA0358 and GA0359 (Radke et al., 2018), adding to those from previous surveys GA4425 and GA0333 collected by GA, AIMS, NTG-DENR and Darwin Port Authority.

Tags: Exclusive Economic Zone, Geochemistry, Marine Environmental Baselines, Marine Survey, Published_External
Organization: Geoscience Australia Data
SI 1013 King Island North, Bass Strait, TAS, (HIPP) Bathymetry Acquisition (20210020S)

​The King Island North, Bass Strait, bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the M/V Pacific Quest during the period 28 January to 6 May 2021. This was a contracted survey conducted as part of the HydroScheme Industry Partnership Program (HIPP). The survey area encompasses a region located north of King Island in Bass Strait, including the approaches to Phoques Bay, located at the NW extremity of King Island. Bathymetry data was acquired using a Kongsberg EM2040D and processed using QPS Qimera V2.0.1. The dataset was then exported to GeoTIFF using CARIS HIPS and SIPS software. This dataset contains a 30m-resolution 32-bit floating point GeoTIFF file of the bathymetry in the survey area. This dataset is not to be used for navigational purposes.

Tags: AusSeabed, Bathymetric grids, Bathymetry, EARTH SCIENCES, HIPP, HVC_144641, Marine, Multibeam, Published_External
Organization: Geoscience Australia Data