Data Services Products: EMC-CSEM_Australasia Australasian part of the Collaborative Seismic Earth Model, version 2019.12.01

Summary

CSEM_Australasia is the Australasian part of the Collaborative Seismic Earth Model (CSEM, Fichtner et al., 2018).

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

SV velocity in CSEM at 100 km depth beneath Australasia
SV velocity in CSEM at 100 km depth beneath Australasia

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

Categories

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