AndreaBozzo/ceres-open-data-index huggingface dataset:
AUSGeoid98 v.1.0 data files:  (sl57-06)

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 Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places.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
Stuart Shelf (P197926), 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 Stuart Shelf (P197926) contains a total of 1063 point data values acquired at a spacing between 100 and 1000 metres. The data is located in SA and were acquired in 1979, under project No. 197926 for Department of Minerals and Energy (Victoria).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 197926
Organization: Geoscience Australia Data
Troopers Bluff 1:100 000 unpublished topographic map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
Implications of sponge biodiversity patterns for the management of a marine reserve in northern Australia

Marine reserves are becoming progressively more important as anthropogenic impacts continue to increase, but we have little baseline information for most marine environments. In this study, we focus on the Oceanic Shoals Commonwealth Marine Reserve (CMR) in northern Australia, particularly the carbonate banks and terraces of the Sahul Shelf and Van Diemen Rise which have been designated a Key Ecological Feature (KEF). We use a species-level inventory compiled from three marine surveys to the CMR to address several questions relevant to marine management: 1) Are carbonate banks and other raised geomorphic features associated with biodiversity hotspots? 2) Can environmental (depth, substrate hardness, slope) or biogeographic (east vs west) variables help explain local and regional differences in community structure? 3) Do sponge communities differ among individual raised geomorphic features? Approximately 750 sponge specimens were collected in the Oceanic Shoals CMR and assigned to 348 species, of which only 18% included taxonomically described species. Between eastern and western areas of the CMR, there was no difference between sponge species richness or assemblages on raised geomorphic features. Among individual raised geomorphic features, sponge assemblages were significantly different, but species richness was not. Species richness showed no linear relationships with measured environmental factors, but sponge assemblages were weakly associated with several environmental variables including mean depth and mean backscatter (east and west) and mean slope (east only). These patterns of sponge diversity are applied to support the future management and monitoring of this region, particularly noting the importance of spatial scale in biodiversity assessments and associated management strategies.
Citation: Przeslawski, R., Alvarez, B., Kool, J., Bridge, T., Caley, M.J., Nichol, S. (2015) Implications of Sponge Biodiversity Patterns for the Management of a Marine Reserve in Northern Australia. PLoS ONE 10(11): e0141813. https://doi.org/10.1371/journal.pone.0141813

Tags: Biodiversity, Community structure, Earth Sciences, External Publication, Marine Biology, Marine conservation, Marine environments, National Environmental Research Program (NERP), Published_Internal, Scientific Journal Paper, Species diversity, Sponges, Taxonomy
Organization: Geoscience Australia Data
Imaging the southeastern Australian lithosphere with magnetotellurics: AusLAMP NSW and Victoria

The Australian Lithospheric Architecture Magnetotelluric Project (AusLAMP) aims to collect long period magnetotelluric (MT) sites on a 0.5 degree (~55 km) grid across the Australian continent. Data and models produced from this program will help to inform our understanding of Australia’s lithospheric architecture and tectonic processes. The New South Wales component of AusLAMP is a collaborative project between Geoscience Australia and the Geological Survey of New South Wales. This new dataset will add to the coverage of the Victorian and South Australian AusLAMP programs, which are both complete.
This presentation is prepared for the Mines and Wines Conference, 2019, and details the progress of the AusLAMP NSW program. These include data, models and preliminary interpretations that are coming out of the program.
Presentation for Discovery in the Tasmanides (Mines and Wines), Wagga Wagga, NSW, 25-28 September 2019
(https://smedg.org.au/events/)

Tags: EARTH SCIENCES, Electrical and Electromagnetic Methods in Geophysics, Published_External, Tectonics
Organization: Geoscience Australia Data
Salt Arm 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
The petrology of layered mafic-ultramafic intrusions of the Giles Complex, western Musgrave Block, Western Australia

The Musgrave Block hosts about twenty major layered intrusions and several generations of compositionally diverse sills and dykes collectively referred to as the Giles Igneous Complex.  All were emplaced in middle Proterozoic intermediate to felsic granulites and amphibolites.  On the basis of crystallisation sequences within the cumulates, we distinguish between (1) ultramafic olivine-clinopyroxene rich cumulate sequences, (2) mafic clinopyroxene-plagioclase-rich sequences, and (3) evolved troctolitic olivine-plagioclase Â± magnetite-rich sequences.  The layered igneous rocks are intruded by several generations of dykes, whose phenocryst assemblages resemble the crystallisation sequences in the cumulates. On this basis, at least three discrete parental melt compositions are identified, namely (1) a near-primitive olivineÂ±clinopyroxene saturated melt, (2) a slightly fractionated olivine-( orthopyroxene )-clinopyroxene-plagioclase saturated melt, and (3) a strongly fractionated fayalitic olivine-plagioclase Â± magnetite saturated melt.  These magmas represent derivatives of a parental liquid that experienced various degrees of polybaric orthopyroxene-clinopyroxene Â± olivine fractionation prior to emplacement, at depths significantly greater than the emplacement levels of the Giles intrusions and the dykes.

Tags: Earth Sciences, GA Publication, Journal, NT, Published_External, SA, WA
Organization: Geoscience Australia Data
Is spatially variable friction important for accurate inundation hazard maps?

There are many uncertainties in tsunami modelling; one of the key parameters for flow overland is friction. As a wave propagates over the land surface it interacts with surface features such as vegetation, buildings and water bodies, which can dissipate the energy and momentum of the flow. The friction of the land surface varies according to the surface features and Manning¿s friction coefficient n is often used to account for friction due to sub-grid features in inundation modelling. However, often a uniform value of n is applied even though it is known to vary spatially. Several studies have highlighted that the friction parameter has significant impacts on the resultant hazard maps from inundation modelling and thus implications for disaster management. This raises two questions: what is the best way to account for variability in land cover and at what resolution is this important for the production of inundation hazard maps?
To answer these questions a review of previous studies was conducted to determine n values used for different land classifications and identify the various techniques used to assign n values. Over 100 land classifications have been used in previous studies and there are four common techniques in accounting for land surface variability. These techniques are: using uniform friction (not accounting for variability); using bimodal friction (one value for the land and one for the sea); using land use/land class (LULC) data to assign friction values; and, including buildings in the topography model. It was found that in studies using LULC data there are many methods; with field data, government data or satellite data used for classification, 3 to 40 LULC classes determined and this being applied at various resolutions. 
A study was undertaken to apply the four techniques to Patong Beach, Thailand and validate the results using field data from the 2004 Indian Ocean Tsunami. It was determined that the most effective method to account for land surface features is to incorporate buildings into the topography model. However, it is acknowledged that this data is very often unavailable, particularly in developing nations. There may also be a computational cost as a fine mesh is needed to capture building geometries. Thus there was a focus on the LULC approach. A method was developed to assign LULC classes by visual interpretation of satellite imagery at approximately 30 m resolution. This was verified with the inundation extent data from the actual event. This method was then applied to the production of a hazard map for the city of Pariaman, West Sumatra, Indonesia.
Presented at the 2017 International Tsunami Symposium

Tags: EARTH SCIENCES, Manning’s coefficient, friction, hazard mapping, inundation, modelling
Organization: Geoscience Australia Data
Robinson River East, NT, 1996 (P664), 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 Robinson River East, NT, 1996 (P664), radiometric line data, AWAGS levelled were acquired in 1996 by the NT Government, and consisted of 82092 line-kilometres of data at 500m 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, NASVD, NT, Published_External, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 664, thorium, uranium, vector
Organization: Geoscience Australia Data
Roper River 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
Abudda Lakes 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
Carlton Gorge 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
Forbes Gravity Traverse (P199805), 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 Forbes Gravity Traverse (P199805) contains a total of 308 point data values acquired at a spacing of 350 metres. The data is located in NSW and were acquired in 1998, under project No. 199805 for Australian Geological Survey Organisation (AGSO); Department of Planning and Environment (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 199805
Organization: Geoscience Australia Data
Adelaide Metropolitan Gravity (P197089), 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 Adelaide Metropolitan Gravity (P197089) contains a total of 161 point data values acquired at a spacing between 200 and 1100 metres. The data is located in SA and were acquired in 1970, under project No. 197089 for Southern Alberta Institute of Technology (SAIT).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 197089
Organization: Geoscience Australia Data
GSQ Bowen Surat South ppm 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 0.00083 degrees (approximately 87m) and shows thorium element concentration of the Bowen-Surat South, Qld, 2006 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2006 by the QLD Government, and consisted of 153424 line-kilometres of data at 400m line spacing and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, NCI, Published_External, QLD, Th, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, rad, radiometrics, raster, spectrometry, survey 1108, thorium
Organization: Geoscience Australia Data
Indonesia's Historical Earthquakes: Modelled examples for improving the national hazard map

With a population of over 250 million people, Indonesia is the fourth most populous country in the world (United Nations, 2013). Indonesia also experiences more earthquakes than any other country in the world (USGS, 2015). Its borders encompass one of the most active tectonic regions on Earth including over 18 000 km of major tectonic plate boundary, more than twice that of Japan or Papua New Guinea (Bird, 2003). The potential for this tectonic activity to impact large populations has been tragically demonstrated by the 20004 Sumatra earthquake and tsunami.  In order to inform earthquake risk reduction in Indonesia, a new national earthquake hazard map was developed in 2010 (Irsyam et al., 2010). In this report historical records of damaging earthquakes from the 17th to 19th centuries are used to test our current understanding of earthquake hazard in Indonesia and identify areas where further research is needed. In this report we address the following questions: 
-       How well does our current understanding of earthquake hazard in Indonesia reflect historical activity? 
-       Can we associate major historical earthquakes with known active faults, and are these accounted for in current assessments of earthquake hazard? 
-       Does the current earthquake hazard map predict a frequency and intensity of shaking commensurate with the historical record? 
-       What would the impact of these historical earthquakes be if they were to reoccur today?
To help answer questions like these, this report collates historical observations of eight large earthquakes from Java, Bali and Nusa Tenggara between 1699 and 1867. These observations are then used to:
-       Identify plausible sources for each event;
-       Develop ground shaking models using the OpenQuake Engine (GEM Foundation, 2015);
-       Assess the validity of the current national seismic hazard map; and
-       Estimate fatalities were the historical events to occur today using the InaSAFE (InaSAFE.org, 2015) software.

Tags: Earth Sciences, GA Publication, Hazard Response, Indonesia, Natural Hazards, Pacific Nations, Published_External, Record, earthquakes
Organization: Geoscience Australia Data
GSWA Yalgoo Doserate 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. The terrestrial dose rate grid is derived as a linear combination of the filtered K, U and Th grids. A low pass filter is applied to this grid to generate the filtered terrestrial dose rate grid.
This GSWA Yalgoo Doserate Grid Geodetic has a cell size of 0.00021 degrees (approximately 22m) and shows the terrestrial dose rate of the Yalgoo, WA, 2014. The data used to produce this grid was acquired in 2015 by the WA Government, and consisted of 126967 line-kilometres of data at a line spacing between 100m and 200m, and 50m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NASVD, NCI, Published_External, Th, U, WA, airborne digital data, dose, dose rate, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, rate, spectrometry, survey 1269, thorium, uranium
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (sc55-08)

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