Data Services Products: EMC-CSEM_North_America North American part of the Collaborative Seismic Earth Model, version 2019.12.01

Summary

CSEM_North_America is the North American and North Atlantic part of the Collaborative Seismic Earth Model (CSEM, Fichtner et al., 2018).

Description

Name CSEM_North_America
Version 2019.12.01 (December 1, 2019)
Title North American 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_North_America (V. 2019.12.01) is the North American and North 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 Fichtner et al. (2013), Rickers et al. (2013), and Krischer et al. (2018).
Authors:  
Andreas Fichtner
ETH Zurich
Zurich, Switzerland

Florian Rickers
Utrecht University
Utrecht, The Netherlands

Lion Krischer
ETH Zurich
Zurich, Switzerland

 
Previous Model None
Reference Model None
Model Homepage https://cos.ethz.ch/research/CSEM.html
Model Download csem-north-america-2019.12.01.nc (see metadata ), is the netCDF file for the model
Depth Coverage 0 to 500 km
Area North America and North Atlantic latitude: 20.0°/60.0° @0.5°, longitude: -140.0°/-40.0° @0.5°
 
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 North America
SV velocity in CSEM at 100 km depth beneath North America

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, https://doi.org/10.1029/2018GL077338.

  • Krischer, L., Igel, H., Fichtner, A., 2018. Automated large-scale full seismic waveform inversion for North America and the North Atlantic. Journal of Geophysical Research 123, https://doi.org/10.1029/2017JB015289.
  • Rickers, F., Fichtner, A., Trampert, J., 2013. The Iceland – Jan Mayen plume system and its impact on mantle dynamics in the North Atlantic region: Evidence from full-waveform inversion. Earth and Planetary Science Letters 367, 39-51. https://doi.org/10.1016/j.epsl.2013.02.022.

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/emccsemnamatl20191201

References:

  • 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.
  • 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.

Credits

  • Model provided by Andreas Fichtner

Timeline

2020-01-27
online

Categories

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