GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic  


Authors / CoAuthors

Geophysical Acquisition & Processing Section

Abstract

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 GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic has a cell size of 0.00049 degrees (approximately 50m) and shows the terrestrial dose rate of the NSW DMR, Discovery 2000 Area J,Cobar-Nymagee, NSW, 1998. The data used to produce this grid was acquired in 1998 by the NSW Government, and consisted of 46744 line-kilometres of data at 250m line spacing and 60m terrain clearance.

Product Type

dataset

eCat Id

142154

Contact for the resource

  Point of contact

Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia

Keywords

theme.ANZRC Fields of Research.rdf
  • EARTH SCIENCES
( Data centre )
  • NCI
( Discipline )
  • Earth sciences
( Discipline )
  • geophysics
( Feature type )
  • grid
( Place )
  • Australia
( Place )
  • NSW
( Project )
  • survey 741
( Theme )
  • GADDS2.0
( Theme )
  • radiometrics
( Theme )
  • NASVD
( Theme )
  • thorium
( Theme )
  • uranium
( Theme )
  • potassium
( Theme )
  • dose rate
( Theme )
  • 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
  • Published_External

Publication Date

2020-03-07T00:00:00

Creation Date

2020-03-07T00:00:00

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - license

Use - license

Status

completed

Purpose

Maintenance Information

notPlanned

Topic Category

geoscientificInformation

Series Information

Lineage

This GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic is an airborne-derived radiometric terrestrial dose rate grid for the NSW DMR, Discovery 2000 Area J,Cobar-Nymagee, NSW, 1998 survey. The survey was acquired under the project No. 741 for the geological survey of NSW. The grid has a cell size of 0.00049 degrees (approximately 50m). A total of 46744 line-kilometres of data at a line spacing of 250m were acquired to produce this grid. The terrestrial dose rate grid 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).

Parent Information

Geophysical Data Collection - Airborne Geophysics

UUID - ddeb0fc4-32e3-4913-80f2-f4249b17a925,

eCat ID - 111301

Extents

[-32.6882, -30.9893, 145.6272, 147.0347]

Reference System

WGS84 (EPSG:4326)

Spatial Resolution

Service Information

Associations

Association Type - operatedOnBy

GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic NCSS    

Association Type - operatedOnBy

GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic OPeNDAP    

Association Type - operatedOnBy

GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic WMS    

Association Type - operatedOnBy

GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic WCS    

Downloads and Links

File available for download in various formats from the GADDS2 portal  

GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic file download  

GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic NCSS  

GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic OPeNDAP  

GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic WMS  

GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic WCS  

Source Information

This GSNSW Exploration NSW Area J Cobar Nymagee Part1 total count grid geodetic includes airborne-derived radiometric terrestrial dose data for the NSW DMR, Discovery 2000 Area J,Cobar-Nymagee, NSW, 1998 survey acquired for the geological survey of NSW