Product catalogue
Tomographic model of the Australian region from seismic full waveform inversion
<div><strong>Output Type:</strong> Exploring for the Future Extended Abstract</div><div><br></div><div><strong>Short Abstract: </strong>Knowledge of lithospheric structure is crucial information for resources exploration and deepening understanding of natural hazards. Available tomographic models of the Australian lithosphere often agree on large scale features, but in detail significant differences remain. Consequently, there is a growing need for a fully verifiable lithospheric model of Australia. Geoscience Australia has committed to develop such a model and share all results and datasets involved in model building. Here we present the first results of a full waveform inversion tomography model of Australia lithosphere down to a period of 70 s potentially able to resolve half wavelengths across continental Australia. Our model is based on seismic records from the National Seismic Network and legacy datasets with the addition of data from the currently deployed continental-scale 2° AusArray survey, which includes stations installed in previously inaccessible areas. We start with 193 earthquakes (moment magnitude (Mw) 6.2–7.5) and add 165 more earthquakes (Mw >5.0) once the model progressed to a period of 70 s. Model resolution will improve over time as more data become available and more time is allowed for computation and quality control. As further iterations continue, and the inversion frequency range expands to higher frequencies, body waves can be exploited in full to constrain the model in detail and provide enough information for all components of the wavefield, building high-resolution tomographic models at a period of 40 s and below. Our model reveals previously observed first order features while revealing finer detail across much of continental Australia.</div><div><br></div><div><strong>Citation: </strong>Holzschuh, J., Gorbatov, A., Hejrani, B., Boehm, C. & Hassan, R., 2024. Tomographic model of the Australian region from seismic full waveform inversion. In: Czarnota, K. (ed.) Exploring for the Future: Extended Abstracts, Geoscience Australia, Canberra, https://doi.org/10.26186/149404</div>
Simple
Identification info
- Date (Creation)
- 2024-03-30T18:00:00
- Date (Publication)
- 2024-08-11T22:56:49
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149404
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/149404
- Cited responsible party
-
Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Holzschuh, J.
Internal Contact Author Gorbatov, A.
Internal Contact Author Hejrani, B.
Internal Contact Author Boehm, C.
External Contact Author Hassan, R.
Internal Contact Editor Czarnota, K.
Internal Contact
- Purpose
-
EFTF extended abstracts
- Status
- Completed
- Point of contact
-
Role Organisation / Individual Name Details Resource provider Minerals, Energy and Groundwater Division
External Contact Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Holzschuh, J.
Internal Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
-
Product data repository: Various Formats
- Website
-
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
- Project
-
-
EFTF – Exploring for the Future
-
- Project
-
-
Australia’s Resources Framework
-
- Keywords
-
-
Full waveform inversion
-
- Keywords
-
-
AusArray
-
- Keywords
-
-
Lithospheric structure
-
- theme.ANZRC Fields of Research.rdf
-
-
Seismology and seismic exploration
-
- Keywords
-
-
Published_External
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Addressee
-
Role Organisation / Individual Name Details User Any
- Use constraints
- License
- Use constraints
- Other restrictions
- Other constraints
-
© Commonwealth of Australia (Geoscience Australia) 2024
Resource constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Classification system
-
Australian Government Security Classification System
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice facsimile
- OnLine resource
-
Extended Abstract for download (pdf) [2.1 MB]
Extended Abstract for download (pdf) [2.1 MB]
- Distribution format
-
-
pdf
- File decompression technique
-
nil
-
- OnLine resource
-
Download the model data (dat) [2.0 MB]
Download the model data (dat) [2.0 MB]
- Distribution format
-
-
dat
- File decompression technique
-
nil
-
- OnLine resource
-
Download data descriptor text (txt) [1.1 KB]
Download data descriptor text (txt) [1.1 KB]
- Distribution format
-
-
txt
- File decompression technique
-
nil
-
Resource lineage
- Statement
-
<div>This is an abstract without a life cycle</div>
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/3f549f3b-9e34-4e65-a36f-289da6122508
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Holzschuh, J.
Internal Contact
Type of resource
- Resource scope
- Document
- Name
-
GA Abstract / Fact Sheet
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/149404
- Date info (Creation)
- 2024-08-08T23:46:55
- Date info (Revision)
- 2024-08-08T23:46:55
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
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