Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity grid  


Authors / CoAuthors

Geophysical Acquisition & Processing Section

Abstract

TOTAL MAGNETIC INTENSITY Total Magnetic Intensity (TMI) data measures variations in the intensity of the Earth's magnetic field, which includes the fields associated with the Earth's core and the magnetism of rocks in the Earth's crust. The data are 'reduced' to highlight those variations caused by the geology in the Earth's crust. TMI data can be used to interpret sub-surface geological structure and has applications in mineral, energy and groundwater studies. GRADIENT ENHANCED GRID The data for this grid were acquired as part of a horizontal magnetic gradient survey, which uses three alkali-vapour magnetometers to measure longitudinal and transverse gradients. These gradients allow for a 'gradient enhanced' grid of the TMI data to be produced with improved near-surface information and reduced noise (such as that arising from diurnal changes in the magnetic field). GRID METADATA Units: Nanotesla (nT); Cell size: 40 m ( degrees); Datum: EPSG:7844 Processing: Gradient enhanced. LINE METADATA Line spacing: 200 m; Line direction: 90 degrees; Total line-kilometres: 65504 km; Nominal flying height (above ground level): 80 m; Acquisition Start Date: 2023-05-21; Acquisition End Date: 2023-09-14;

Product Type

dataset

eCat Id

149161

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

  Point of contact

 

  Resource provider

 

Digital Object Identifier

https://dx.doi.org/10.26186/149161

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 5023
( Theme )
  • magnetics
( Theme )
  • magnetism
( Theme )
  • palaeomagnetism
( Theme )
  • total magnetic intensity
( Theme )
  • TMI
( Theme )
  • horizontal gradient
( Theme )
  • gradiometry
( Theme )
  • airborne
( Theme )
  • geophysical survey
( Theme )
  • grid
( Theme )
  • raster
( Theme )
  • GADDS
  • Published_External

Publication Date

2024-02-12T01:39:45

Creation Date

2024-02-05T00:00:00

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 Gradient-Enhanced, Total Magnetic Intensity (TMI) grid from the 5023 Yathong airborne magnetic gradient and radiometric survey, 2023 survey was produced by MAGSPEC Airborne Surveys Pty Ltd for Geological Survey of New South Wales (GSNSW). Quality control and project management were performed by the Geophysical Acquisition and Processing Section at Geoscience Australia.

Parent Information

Geophysical Data Collection - Airborne Geophysics

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

eCat ID - 111301

Extents

[-33.126166154269896, -31.75883276099071, 144.78821652548916, 145.78921679836856]

Reference System

GDA2020 (EPSG:7844)

Spatial Resolution

Service Information

Associations

Association Type - operatedOnBy

Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity grid NCSS    

Association Type - operatedOnBy

Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity grid OPeNDAP    

Association Type - operatedOnBy

Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity grid WMS    

Association Type - operatedOnBy

Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity grid WCS    

Downloads and Links

File available for download in various formats from the GADDS2 portal  

Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity grid file download  

Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity grid NCSS  

Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity grid OPeNDAP  

Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity grid WMS  

Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity grid WCS  

Source Information