Summary
CSEM_Australasia is the Australasian part of the Collaborative Seismic Earth Model (CSEM, Fichtner et al., 2018).
Quicklinks
Description
| Name | CSEM_Australasia |
| Version | 2019.12.01 (December 1, 2019) |
| Title | Australasian part of the Collaborative Seismic Earth Model (CSEM) |
| Type | 3-D Tomography Earth Model |
| Sub Type | SH velocity, SV velocity |
| Year | 2019 |
| Short Description | CSEM_Australasia (V. 2019.12.01) is the Australasian part of the Collaborative Seismic Earth Model (CSEM, Fichtner et al., 2018). It has been constructed using multi-scale full seismic waveform inversion, combining spectral-element waveform modelling and adjoint techniques, as described in Fichtner et al. (2006, 2009). This submodel has been extracted from the variable-parameterisation CSEM onto a regular grid, readable by EMC tools. While having regional contributions from various sub-inversions, the structure in this model is dominated by the Australasian full-waveform inversion described in Fichtner et al. (2010). |
| Authors: | |
| Andreas Fichtner | |
| ETH Zurich | |
| Zurich, Switzerland | |
| Erdinc Saygin | |
| CSIRO | |
| Perth, Australia | |
| Brian L. N. Kennett | |
| Australian National University | |
| Canberra, Australia | |
| Hans-Peter Bunge | |
| Ludwig Maximilian University | |
| Munich, Germany | |
| Heiner Igel | |
| Ludwig Maximilian University | |
| Munich, Germany | |
| Previous Model | None |
| Reference Model | None |
| Model Homepage | https://cos.ethz.ch/research/CSEM.html |
| Model Download | csem-australasia-2019.12.01.nc (see metadata ), is the netCDF file for the model |
| Depth Coverage | 0 to 500 km |
| Area | Australasia latitude: -50.0°/0.0° @1.0°, longitude: 100.0°/180.0° |
| Data Set Description | Since the datasets included in the CSEM are too heterogeneous for a brief description, please see Fichtner et al. (2018) for details. |
| Supplemental Information |
Citations and DOIs
To cite the original work behind this Earth model:
- Fichtner, A., Kennett, B. L. N., Igel, H., Bunge, H.-P., 2010. Full waveform tomography for radially anisotropic structure: New insights into present and past states of the Australasian upper mantle. Earth and Planetary Science Letters 290, 270-280. https://doi.org/10.1016/j.epsl.2009.12.003.
- Fichtner, A., van Herwaarden, D.-P., Afanasiev, M., Simute, S., Krischer, L., Cubuk-Sabuncu, Y., Taymaz, T., Colli, L., Saygin, E., Villasenor, A., Trampert, J., Cupillard, P., Bunge, H.-P., Igel, H., 2018. The Collaborative Seismic Earth Model: Generation I. Geophysical Research Letters 45, https://doi.org/10.1029/2018GL077338.
To cite IRIS DMC Data Products effort:
- Trabant, C., A. R. Hutko, M. Bahavar, R. Karstens, T. Ahern, and R. Aster (2012), Data Products at the IRIS DMC: Stepping Stones for Research and Other Applications, Seismological Research Letters, 83(5), 846–854, https://doi.org/10.1785/0220120032.
DOI for this EMC webpage:
https://doi.org/10.17611/dp/emccsemausasi20191201
References:
- Fichtner, A., Bunge, H.-P., Igel, H., 2006. The adjoint method in seismology – I. Theory. Physics of the Earth and Planetary Interiors 157, 86-104.
- Fichtner, A., Kennett, B. L. N., Igel, H., Bunge, H.-P., 2009. Full seismic waveform tomography for upper-mantle structure in the Australasian region using adjoint methods. Geophysical Journal International 179, 1703-1725.
Credits
- Model provided by Andreas Fichtner
Timeline
- 2020-01-27
- online
