Tanami Merged - U equivalent concentration grid (AWAGS)

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 uranium grid has a cell size of 0.00018 degrees (approximately 20m) and shows uranium element concentration of the NTGS Tanami Merged Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2018 by the NT Government, and consisted of 243199 line-kilometres of data at a line spacing between 100m and 200m, and 60m terrain clearance. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid.

Identification info

Date (Creation): 2020-10-31T00:00:00

Date (Publication): 2020-10-31T00:00:00

Date (Revision): 2021-07-05T23:36:58

Citation identifier: Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/144849

Cited responsible party

Role	Organisation / Individual Name	Details
Author	Geophysical Acquisition & Processing Section

Status: Completed

Point of contact

Role	Organisation / Individual Name	Details
Point of contact	Commonwealth of Australia (Geoscience Australia)	Voice

Topic category

Geoscientific information

Extent

Temporal extent

Time period: 2018-07-13T00:00:00 2018-10-23T00:00:00

Maintenance and update frequency: Not planned

Resource format

Title: Product data repository: Various Formats

Website: Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

theme.ANZRC Fields of Research.rdf

EARTH SCIENCES

Data centre

Discipline

Earth sciences

Discipline

geophysics

Feature type

grid

Place

Australia

Place

Project

survey 1312

Theme

AWAGS

Theme

GADDS2.0

Theme

radiometrics

Theme

uranium

Theme

airborne digital data

Theme

geophysical survey

Theme

gamma-ray

Theme

spectrometry

Theme

grid

Theme

raster

Keywords

Published_External

Resource constraints

Title: Creative Commons Attribution 4.0 International Licence

Alternate title: CC-BY

Edition: 4.0

Website

http://creativecommons.org/licenses/

Access constraints: License

Use constraints: License

Other constraints: (c) Commonwealth of Australia (Geoscience Australia) and Northern Territory of Australia (Northern Territory Geological Survey) 2020

Resource constraints

Title: Australian Government Security ClassificationSystem

Edition date: 2018-11-01T00:00:00

Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification: Unclassified

Associated resource

Association Type: Operated on by

Title: Tanami Merged - U equivalent concentration grid (AWAGS) NCSS

Website

https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1312/P1312-grid-u_conc-Merged-AWAGS_RAD_2019.nc/dataset.html

NetCDF Subsetting Service (NCSS) for Tanami Merged - U equivalent concentration grid (AWAGS)

Associated resource

Association Type: Operated on by

Title: Tanami Merged - U equivalent concentration grid (AWAGS) OPeNDAP

Website

https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1312/P1312-grid-u_conc-Merged-AWAGS_RAD_2019.nc.html

OPeNDAP web service for Tanami Merged - U equivalent concentration grid (AWAGS)

Associated resource

Association Type: Operated on by

Title: Tanami Merged - U equivalent concentration grid (AWAGS) WMS

Website

https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1312/P1312-grid-u_conc-Merged-AWAGS_RAD_2019.nc?service=WMS&version=1.3.0&request=GetCapabilities

OGC Web Mapping Service (WMS) for Tanami Merged - U equivalent concentration grid (AWAGS)

Associated resource

Association Type: Operated on by

Title: Tanami Merged - U equivalent concentration grid (AWAGS) WCS

Website

https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/NT/grid/P1312/P1312-grid-u_conc-Merged-AWAGS_RAD_2019.nc?service=WCS&version=1.0.0&request=GetCapabilities

OGC Web Coverage Service (WCS) for Tanami Merged - U equivalent concentration grid (AWAGS)

Language: English

Character encoding: UTF8

Distribution Information

Distributor contact

Role	Organisation / Individual Name	Details
Distributor	Geoscience Australia	Voice

OnLine resource: File available for download in various formats from the GADDS2 portal

The Geophysical Archive Data Delivery System (GADDS2) portal provides HTTP download of geophysics datasets in a number of formats. Point and line datasets are available in NetCDF and ASEG-GDF2. Grid datasets are available in NetCDF, GeoTIFF and ERS.

Distribution format

WWW:LINK-1.0-http--link

Distributor contact

Role	Organisation / Individual Name	Details
Distributor	National Computational Infrastructure	Voice

OnLine resource: Tanami Merged - U equivalent concentration grid (AWAGS) file download

File download for Tanami Merged - U equivalent concentration grid (AWAGS)

Distribution format

WWW:LINK-1.0-http--link

OnLine resource: Tanami Merged - U equivalent concentration grid (AWAGS) NCSS

NetCDF Subsetting Service (NCSS) for Tanami Merged - U equivalent concentration grid (AWAGS)

Distribution format

NCSS

OnLine resource: Tanami Merged - U equivalent concentration grid (AWAGS) OPeNDAP

OPeNDAP web service for Tanami Merged - U equivalent concentration grid (AWAGS)

Distribution format

WWW:LINK-1.0-http--opendap

OnLine resource: Tanami Merged - U equivalent concentration grid (AWAGS) WMS

OGC Web Mapping Service (WMS) for Tanami Merged - U equivalent concentration grid (AWAGS)

Distribution format

OGC:WMS

OnLine resource: Tanami Merged - U equivalent concentration grid (AWAGS) WCS

OGC Web Coverage Service (WCS) for Tanami Merged - U equivalent concentration grid (AWAGS)

Distribution format

OGC:WCS

Resource lineage

Statement

This Tanami Merged - U equivalent concentration grid (AWAGS) is an airborne-derived radiometric uranium grid for the NTGS Tanami Merged Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018. The survey was acquired under the project No. 1312 for the geological survey of NT. The grid has a cell size of 0.00018 degrees (approximately 20m). A total of 243199 line-kilometres of data at a line spacing between 100m and 200, and 60m terrain clearance were acquired to produce this grid. This radiometric uranium grid shows uranium element concentration of the NTGS Tanami Merged Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018 in units of parts per million (or ppm). Noise-adjusted singular value decomposition (NASVD) has been applied to the data. NASVD is a spectral component analysis procedure for the removal of noise from gamma-ray spectra. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid (Milligan et al., 2009). This survey grid is essentially levelled to AWAGS. Details of the specifications of individual airborne surveys can be found in the Fourteenth Edition of the Index of Airborne Geophysical Surveys (Percival, 2014). This Index is also available online at http://pid.geoscience.gov.au/dataset/79134.

Reference:

Milligan, P.R., Minty, B.R.S., Richardson, M. & Franklin, R., 2009. The Australia-wide Airborne Geophysical Survey accurate continental magnetic coverage. Preview, No. 138, p. 1-128,

Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).

Hierarchy level: Dataset

Description: This Tanami Merged - U equivalent concentration grid (AWAGS) includes airborne-derived radiometric uranium data for the NTGS Tanami Merged Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018 acquired for the geological survey of NT

Reference System Information

Reference system identifier: EPSG/GDA94 (EPSG:4283)

Metadata constraints

Title: Australian Government Security Classification System

Edition date: 2018-11-01T00:00:00

Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification: Unclassified

Metadata

Metadata identifier

urn:uuid/c84192dd-bcd8-4b3a-b05f-f9e84b75648a

Title: GeoNetwork UUID

Language: English

Character encoding: UTF8

Contact

Role	Organisation / Individual Name	Details
Point of contact	Commonwealth of Australia (Geoscience Australia)	Voice
Point of contact	Manager Client Services

Title: Geophysical Data Collection - Airborne Geophysics

Citation identifier: ddeb0fc4-32e3-4913-80f2-f4249b17a925

Citation identifier: 111301

Type of resource

Resource scope: Dataset

Name: Tanami Merged - U equivalent concentration grid (AWAGS)

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier: eCatId/144849

Metadata linkage

http://rhe-ecat-prod01.prod.lan:8080/geonetwork/srv/eng/search?uuid=c84192dd-bcd8-4b3a-b05f-f9e84b75648a

Date info (Creation): 2021-06-17T00:00:00

Date info (Revision): 2021-06-17T00:00:00

Metadata standard

Title: AU/NZS ISO 19115-1:2014

Metadata standard

Title: ISO 19115-1:2014

Metadata standard

Title: ISO 19115-3

Title: Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition: Version 2.0, September 2018

Citation identifier: https://pid.geoscience.gov.au/dataset/ga/122551

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Read here the full details and access to the data.

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