• NSW Geoscience Metadata
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TMI RTP on Tilt angle filter of TMI RTP (TMI RTP on Tilt TMI RTP)

Total magnetic intensity reduced to the pole (TMI RTP) image overlain on tilt-filtered (Tilt) total magnetic intensity reduced to the pole image. The image is a partially-transparent pseudocolour layer of TMI RTP, with a histogram-equalised colour-stretch, overlain on a greyscale intensity layer of the Tilt, with a histogram-equalised stretch. Cooler colours indicate lower values and warmer colours represent higher TMI RTP values. Dark tones indicate lower values and lighter tones represent higher values of the Tilt. 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). The tilt-angle filter produces a positive maximum over the centre of a magnetic source and is zero near the edge of the source, and is useful for tracing geological structure below variable depths of cover. 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

Custodian

Geological Survey of NSW - Email MinView Information
Topic category
  • Geoscientific information
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Keywords (Theme)
  • WCS
  • ImageMosaic
  • MagRTPtilt

Distribution Information

Distribution format
OnLine resource
Download TMI RTP on Tilt angle filter 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:4326

Reference System Information

Reference system identifier
CRS:84

Metadata

Metadata identifier
urn:uuid/202563cdd844d5cc93280bc5866433bb4afd8da7

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/202563cdd844d5cc93280bc5866433bb4afd8da7

Date info (Revision)
2025-04-16T13:52:20
Date info (Creation)
2020-11-19T09:13:22

Metadata standard

Title
ISO 19115:2003/19139
Edition
1.0
 
 

Overviews

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

Spatial extent

N
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W


Keywords

ImageMosaic MagRTPtilt WCS

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Associated resources

Not available


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