Product catalogue
Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid
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).
REDUCTION TO POLE
A Reduction to Pole (RTP) is applied to this grid to locate anomalies above the causative bodies, removing asymmetry caused by the inclination of the Earth's magnetic field. An RTP assumes that the anomalies are caused by induced magnetism (and remanent magnetism is not significant).
FIRST VERTICAL DERIVATIVE
A First Vertical Derivative (1VD) is applied to this grid which enhances the short-wavelength component of the field.
GRID METADATA
Units: Nanotesla per metre (nT/m);
Cell size: 40 m ( degrees);
Datum: EPSG:7844
Processing: Gradient enhanced + RTP + 1VD.
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;
Simple
Identification info
- Date (Creation)
- 2024-02-05T00:00:00
- Date (Publication)
- 2024-02-12T01:39:44
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/149163
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Geophysical Acquisition & Processing Section
External Contact
- Purpose
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The data were acquired in collaboration with the Geological Survey of New South Wales (GSNSW) to provide high-resolution geological information across ~11,400 km2 of central NSW. The data has applications in mineral exploration (including critical minerals), groundwater, hydrogen, and soil mapping studies.
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Goodwin, J.A.
External Contact Resource provider Minerals, Energy and Groundwater Division
External Contact
- Topic category
-
- Geoscientific information
Extent
))
Temporal extent
- Time period
- 2023-05-21T00:00:00 2023-09-14T00:00:00
- Maintenance and update frequency
- Not planned
Resource format
- Title
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Product data repository: Various Formats
- Website
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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
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EARTH SCIENCES
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- Data centre
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NCI
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- Discipline
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Earth sciences
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- Discipline
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geophysics
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- Feature type
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grid
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- Place
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Australia
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- Place
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NSW
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- Project
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survey 5023
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- Theme
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magnetics
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- Theme
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magnetism
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- Theme
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palaeomagnetism
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- Theme
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total magnetic intensity
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- Theme
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TMI
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- Theme
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reduction to pole
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- Theme
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RTP
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- Theme
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first vertical derivative
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- Theme
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1VD
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- Theme
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horizontal gradient
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- Theme
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gradiometry
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- Theme
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airborne
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- Theme
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geophysical survey
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- Theme
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grid
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- Theme
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raster
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- Theme
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GADDS2.0
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
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4.0
- Access constraints
- License
- Use constraints
- License
- Other constraints
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Commonwealth of Australia (Geoscience Australia) and State of New South Wales (Department of Regional New South Wales)
Resource constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Associated resource
- Association Type
- Operated on by
- Title
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Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid NCSS
Associated resource
- Association Type
- Operated on by
- Title
-
Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid OPeNDAP
Associated resource
- Association Type
- Operated on by
- Title
-
Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid WMS
Associated resource
- Association Type
- Operated on by
- Title
-
Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid WCS
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Geoscience Australia
Voice
- OnLine resource
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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
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WWW:LINK-1.0-http--link
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- Distributor contact
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Role Organisation / Individual Name Details Distributor National Computational Infrastructure
Voice
- OnLine resource
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Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid file download
File download for Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid
- Distribution format
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WWW:LINK-1.0-http--link
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- OnLine resource
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Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid NCSS
NetCDF Subsetting Service (NCSS) for Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid
- Distribution format
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NCSS
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- OnLine resource
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Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid OPeNDAP
OPeNDAP web service for Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid
- Distribution format
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WWW:LINK-1.0-http--opendap
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- OnLine resource
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Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid WMS
OGC Web Mapping Service (WMS) for Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid
- Distribution format
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OGC:WMS
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- OnLine resource
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Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid WCS
OGC Web Coverage Service (WCS) for Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid
- Distribution format
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OGC:WCS
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Resource lineage
- Statement
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This Gradient-Enhanced, Total Magnetic Intensity (TMI), Reduced to Pole (RTP), First Vertical Derivative (1VD) 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.
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG/GDA2020 (EPSG:7844)
Metadata constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/bde30556-0f71-44e6-ab51-04cb4a3eda3b
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Goodwin, J.A.
External Contact
- Title
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Geophysical Data Collection - Airborne Geophysics
- Citation identifier
- ddeb0fc4-32e3-4913-80f2-f4249b17a925
- Citation identifier
- 111301
Type of resource
- Resource scope
- Dataset
- Name
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Yathong Magnetic Gradient and Radiometric Survey, NSW, 2023, (P5023), gradient enhanced total magnetic intensity, reduced to pole, first vertical derivative grid
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/149163
- Date info (Creation)
- 2024-01-13T00:00:00
- Date info (Revision)
- 2024-01-13T00:00:00
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- http://pid.geoscience.gov.au/dataset/ga/122551