Summary
CSEM_South_Atlantic is the South Atlantic part of the Collaborative Seismic Earth Model (CSEM, Fichtner et al., 2018).
Quicklinks
Description
| Name | CSEM_South_Atlantic |
| Version | 2019.12.01 (December 1, 2019) |
| Title | South Atlantic 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_South_Atlantic (V. 2019.12.01) is the South Atlantic 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. (2006,2013). 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 full-waveforms inversion described in Colli et al. (2013). |
| Authors: | |
| Andreas Fichtner | |
| ETH Zurich | |
| Zurich, Switzerland | |
| Lorenzo Colli | |
| University of Houston | |
| Houston, USA | |
| Previous Model | None |
| Reference Model | None |
| Model Homepage | https://cos.ethz.ch/research/CSEM.html |
| Model Download | csem-south-atlantic-2019.12.01.nc (see metadata ), is the netCDF file for the model |
| Depth Coverage | 0 to 500 km |
| Area | South Atlantic latitude: -60.0°/20.0° @1.0°, longitude: -70.0°/20.0° @1.0° |
| 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., 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, doi: https://doi.org/10.1029/2018GL077338.
- Colli, L., Fichtner, A., Bunge, H.-P., 2013. Full waveform tomography of the upper mantle in the South Atlantic region: Imaging a westward fluxing shallow asthenosphere? Tectonophysics 604, 26-40.
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/emccsemsatl20191201
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., Trampert, J., Cupillard, P., Saygin, E., Taymaz, T., Capdeville, Y., Villasenor, A., 2013. Multi-scale full waveform inversion. Geophysical Journal International 194, 534-556.
Credits
Timeline
- 2020-01-27
- online
