• NSW Geoscience Metadata
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NSW Total Magnetic Intensity Reduced to the Pole (TMI RTP)

Pseudocolour image of total magnetic intensity reduced to the pole (TMI RTP) with a histogram-equalised colour-stretch. Cooler colours indicate lower magnetic intensity values and warmer colours represent higher values. The intensity layer is the TMI RTP greyscale image enhanced by a 3x3 sun filter with the sun illumination set at 45 degrees elevation and 90 degrees azimuth. Reduction to the pole filters magnetic anomalies to appear as if the Earth's magnetic field were locally vertical, as at the magnetic pole (assuming all magnetic sources are inductively magnetised). Variations in the magnetic field are caused by lithological factors, principally magnetite (and/or pyrrhotite) content. This Statewide image was generated by merging many individual airborne magnetic surveys.

Simple

Identification info

Date (Revision)
2025-04-16
Status
Completed

Point of contact

Geological Survey of NSW - Email MinView Information
Topic category
  • Geoscientific information
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Keywords (Theme)
  • Geophysics
  • Magnetics
  • Statewide
Keywords (Place)
  • New South Wales
Language
English

Distribution Information

Distribution format
  • Web Map Service

Distributor

Distributor

Geological Survey of NSW - Email Geophysics Products
OnLine resource
Download TMI RTP 2024 ERS file (4.3GB)

OnLine resource
Download TMI RTP 2024 TIF file

Resource lineage

Statement
This product represents the 2024 update to the NSW statewide magnetic merge. This version was rebuilt from the line data of all included surveys, and as of the 2020 release, incorporates high resolution open-file company data. MATTHEWS S.J. 2024. New South Wales Statewide magnetic merge, version 3.0 [Digital Dataset]. Geological Survey of New South Wales, Department of Primary Industries and Regional Development, Maitland. MATTHEWS S.J. 2022. New South Wales Statewide magnetic merge, version 2.0 [Digital Dataset]. Geological Survey of New South Wales, Department of Regional NSW, Maitland. MATTHEWS S.J. 2020. New South Wales Statewide magnetic merge, version 1.0 [Digital Dataset]. Geological Survey of New South Wales, Department of Regional NSW, Maitland.
Hierarchy level
Dataset

Reference System Information

Reference system identifier
EPSG:3857

Reference System Information

Reference system identifier
CRS:84

Metadata

Metadata identifier
urn:uuid/5025f223968f983c55010e0f912c78ecac34243b

Language
English
Character encoding
UTF8

Custodian

Geological Survey of NSW - Email MinView Information

Type of resource

Resource scope
Dataset
Metadata linkage
https://geonetwork.geoscience.nsw.gov.au/geonetwork/srv/api/records/5025f223968f983c55010e0f912c78ecac34243b

Date info (Revision)
2025-04-16T13:23:05
Date info (Creation)
2020-11-19T09:09:31

Metadata standard

Title
ISO 19115:2003/19139
Edition
1.0
 
 

Overviews

geophys-imagery-geophys-mag-tmi-rtp.png

Spatial extent

N
S
E
W


Keywords

Geophysics Magnetics Statewide

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Access to the portal
Read here the full details and access to the data.

Associated resources

Not available


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