From Geoscience Australia
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Spectral representation of isostatic models

Created 03/03/2026

Updated 03/03/2026

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The development of cross-spectral techniques for investigating the relation between gravity and topography has led to the representation of isostatic processes in terms of mathematical filters, or admittance functions. These filters can easily be constructed by application of Greens equivalent layer theorem. The rheology of the lithosphere principally controls the process by which isostatic compensation is achieved. As examples, admittance functions representing the isostatic process defined by elastic and visco-elastic rheologies are developed. By using admittance functions, the calculation of the free-air gravity anomaly for complicated topography, isostatic schemes, or rheology becomes computationalIy more efficient and simple compared to the more conventional line-integral methods.

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Field Value
Title Spectral representation of isostatic models
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/8fbf94b8-5e43-4f06-a6ab-fa6d747e0f48
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage Australia
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Spectral representation of isostatic models". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/spectral-representation-of-isostatic-models6