Data Services Products: EMC-CSEM_South_Atlantic

Summary

CSEM_South_Atlantic is the South Atlantic part of the Collaborative Seismic Earth Model (CSEM, Fichtner et al., 2018).

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

SV velocity in CSEM at 100 km depth beneath the South Atlantic
SV velocity in CSEM at 100 km depth beneath the South Atlantic

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

Categories

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