Gairdner - dose rate 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. The total dose rate is due to natural sources of radiation and is computed by adding estimates of cosmic dose at ground level to the terrestrial dose. 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 total dose rate grid.

This Gairdner - dose rate grid (AWAGS) has a cell size of 0.0004 degrees (approximately 41m) and shows the total dose rate of the Gairdner Airborne Magnetic Radiometric and DEM survey, SA, 2018 survey. The data used to produce this grid was acquired in 2018 by the SA Government, and consisted of 104788 line-kilometres of data at 200m line spacing and 60m terrain clearance.

Simple

Identification info

Date (Creation)
2020-10-31T00:00:00
Date (Publication)
2020-10-31T00:00:00
Date (Revision)
2021-07-05T23:37:05
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/144974

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

N
S
E
W


Temporal extent

Time period
2018-06-30T00:00:00 2019-01-23T00:00:00
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

  • NCI

Discipline

  • Earth sciences

Discipline

  • geophysics

Feature type

  • grid

Place

  • Australia

Place

  • SA

Project

  • survey 1309

Theme

  • GADDS2.0

Theme

  • radiometrics

Theme

  • NASVD

Theme

  • thorium

Theme

  • uranium

Theme

  • potassium

Theme

  • dose rate

Theme

  • total dose

Theme

  • rate

Theme

  • airborne digital data

Theme

  • geophysical survey

Theme

  • rad

Theme

  • K

Theme

  • Th

Theme

  • U

Theme

  • gamma-ray

Theme

  • spectrometry

Theme

  • raster

Theme

  • grid

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 Department for Energy and Mining, Government of South Australia 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

Gairdner - dose rate grid (AWAGS) NCSS

Website

https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1309/P1309-grid-dose_total-AWAGS_RAD_2019.nc/dataset.html

NetCDF Subsetting Service (NCSS) for Gairdner - dose rate grid (AWAGS)

Associated resource

Association Type
Operated on by
Title

Gairdner - dose rate grid (AWAGS) OPeNDAP

Website

https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1309/P1309-grid-dose_total-AWAGS_RAD_2019.nc.html

OPeNDAP web service for Gairdner - dose rate grid (AWAGS)

Associated resource

Association Type
Operated on by
Title

Gairdner - dose rate grid (AWAGS) WMS

Website

https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1309/P1309-grid-dose_total-AWAGS_RAD_2019.nc?service=WMS&version=1.3.0&request=GetCapabilities

OGC Web Mapping Service (WMS) for Gairdner - dose rate grid (AWAGS)

Associated resource

Association Type
Operated on by
Title

Gairdner - dose rate grid (AWAGS) WCS

Website

https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1309/P1309-grid-dose_total-AWAGS_RAD_2019.nc?service=WCS&version=1.0.0&request=GetCapabilities

OGC Web Coverage Service (WCS) for Gairdner - dose rate 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

Gairdner - dose rate grid (AWAGS) file download

File download for Gairdner - dose rate grid (AWAGS)

Distribution format

  • WWW:LINK-1.0-http--link

OnLine resource

Gairdner - dose rate grid (AWAGS) NCSS

NetCDF Subsetting Service (NCSS) for Gairdner - dose rate grid (AWAGS)

Distribution format

  • NCSS

OnLine resource

Gairdner - dose rate grid (AWAGS) OPeNDAP

OPeNDAP web service for Gairdner - dose rate grid (AWAGS)

Distribution format

  • WWW:LINK-1.0-http--opendap

OnLine resource

Gairdner - dose rate grid (AWAGS) WMS

OGC Web Mapping Service (WMS) for Gairdner - dose rate grid (AWAGS)

Distribution format

  • OGC:WMS

OnLine resource

Gairdner - dose rate grid (AWAGS) WCS

OGC Web Coverage Service (WCS) for Gairdner - dose rate grid (AWAGS)

Distribution format

  • OGC:WCS

Resource lineage

Statement

This Gairdner - dose rate grid (AWAGS) is an airborne-derived radiometric total dose rate grid for the Gairdner Airborne Magnetic Radiometric and DEM survey, SA, 2018 survey. The survey was acquired under the project No. 1309 for the geological survey of SA. The grid has a cell size of 0.0004 degrees (approximately 41m). A total of 104788 line-kilometres of data at a line spacing of 200m were acquired to produce this grid. The total dose rate is due to natural sources of radiation and is computed by adding estimates of cosmic dose at ground level to the terrestrial dose. 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. The terrestrial dose is derived as a linear combination of the filtered K, U and Th grids. 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:

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

Hierarchy level
Dataset
Description

This Gairdner - dose rate grid (AWAGS) includes airborne-derived radiometric total dose data for the Gairdner Airborne Magnetic Radiometric and DEM survey, SA, 2018 survey acquired for the geological survey of SA

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/a6bd6c33-0483-4a9c-9fec-dd36391a9d1e

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

Gairdner - dose rate grid (AWAGS)

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/144974

Metadata linkage

http://rhe-ecat-prod01.prod.lan:8080/geonetwork/srv/eng/search?uuid=a6bd6c33-0483-4a9c-9fec-dd36391a9d1e

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

 
 

Spatial extent

N
S
E
W


Keywords

Earth sciences GADDS2.0 K NASVD NCI Th U airborne digital data dose rate gamma-ray geophysical survey geophysics grid grid potassium rad radiometrics raster rate spectrometry survey 1309 thorium total dose uranium
theme.ANZRC Fields of Research.rdf
EARTH SCIENCES

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Access to the portal

Associated resources

Not available