Data Services Products: EMC-SATONA Seismic Adjoint Tomography of North America

Summary

SATONA is an adjoint tomography model above 1000 km depth for North America by maximizing the correlation coefficient between observed and synthetic waveforms through over 200 mini-batch iterations.

Description

Name SATONA
Title Seismic Adjoint Tomography of North America
Type 3-D Tomography Earth Model
Sub Type Radial anisotropic (in the upper 410 km) P and S velocities
Year 2025
Data Revision r0.0 (revision history)
 
Short Description   SATONA is an adjoint tomography model above 1000 km depth for North America by maximizing the correlation coefficient between observed and synthetic waveforms through over 200 mini-batch iterations. The model contains both S-wave and P-wave velocities, and is transversely isotropic within the upper mantle while isotropic below it. While the S-wave model presents high resolution down to ~1000 km depths, the high-resolution portion of the P-wave model is mainly above the lower mantle.
 
Authors: Junlin Hua (junlin_hua@ustc.edu.cn), Laboratory of Seismology and Physics of Earth’s Interior, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui, 230026 China

Stephen P. Grand, Department of Earth and Planetary Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, 78712 USA

Thorsten W. Becker, Institute for Geophysics, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, 78712 USA

Helen A. Janiszewski, Department of Earth Sciences, University of Hawai’i at Mānoa, Honolulu, HI, 96822 USA

Chujie Liu, Department of Earth and Planetary Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, 78712 USA

Daniel T. Trugman, Nevada Seismological Laboratory, University of Nevada, Reno, Reno, NV, 89557 USA

Hejun Zhu, Department of Earth and Space Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, 518055 China

 
Reference Model None
 
Prior Model US22 (Zhu et al., 2017) is the starting model
 
Model Download SATONA.r0.0-n4.nc (see metadata) is the model in compressed netCDF-4 Classic format.
 
Model Home Page None
 
Depth Coverage 0 to 1000 km
 
Area North America (with better resolution in the US and Central America, latitude: 3° to 63°; longitude: -130° to -68°)
 
Data Set Description P/S/PP/SS body wave phases filtered between 14 and 100 s, and surface wave phases filtered to 4 different frequency bands (20-40 s, 40-60 s, 60-80 s, 80-150 s). Stations include those from the US Array, Cascadia Initiative, Mexican National Network, and many other networks.
 
 

SATONA
The shear velocity perturbation distribution at 100 (a), 200 (b), 300©, 400 (d), 500 (e), 600 (f), 700 (g), 800 (h), and 900 (i) km depths. Tectonic boundaries are shown in (a), consistent with many velocity boundaries. Craton root, as well as Cascadia and Cocos subducting slabs, are very clear in (b), including the flat-slab subduction geometry.

Citations and DOIs

To cite the original work behind this Earth model:

  • Hua, J., Grand, S. P., Becker, T. W., Janiszewski, H. A., Liu, C., Trugman, D. T., & Zhu, H. (2025). Seismic full-waveform tomography of active cratonic thinning beneath North America consistent with slab-induced dripping. Nature Geoscience, 1-7, https://doi.org/10.1038/s41561-025-01671-x.

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/emc.2025.satona0331.1

References

  • Hejun Zhu, Dimitri Komatitsch, Jeroen Tromp, Radial anisotropy of the North American upper mantle based on adjoint tomography with USArray, Geophysical Journal International, Volume 211, Issue 1, October 2017, Pages 349–377, https://doi.org/10.1093/gji/ggx305

Credits

  • r0.0 model provided by Junlin Hua

Revision History

revision r0.0: uploaded April 1, 2025.

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