Summary
FWEA23 is a high-resolution seismic P- and S-wave velocity model of the crust and mantle beneath East Asia. It’s produced by full-waveform adjoint inversion using a large dataset.
Quicklinks
Description
| Name | FWEA23 |
| Title | Full-waveform tomography model of East Asia (FWEA23) |
| Type | 3-D Tomography Earth Model |
| Sub Type | Radial anisotropic (in the upper 220 km) P and S velocities |
| Year | 2024 |
| Data Revision | r0.0 (revision history) |
| Short Description | FWEA23 is a high-resolution seismic P- and S-wave velocity model of the crust and mantle beneath East Asia. It’s produced by full-waveform adjoint inversion using a large dataset. |
| Authors: | Chujie Liu (lcj2012@utexas.edu), Department of Earth and Planetary Sciences, University of Texas at Austin, Austin, TX 78712, USA Rupak Banerjee, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, India Stephen P. Grand, Department of Earth and Planetary Sciences, University of Texas at Austin, Austin, TX 78712, USA Eric Sandvol, Department of Geological Sciences, University of Missouri, Columbia, MO 65211, USA Supriyo Mitra, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, India Xiaofeng Liang, State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Shengji Wei, Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore |
| Reference Model | CRUST1.0 in the crust and a 1-D model in the mantle. Parameters vp0 and vs0 in the model file represent P- and S-wave reference models, respectively. |
| Prior Model | FWEA18 |
| Model Download | FWEA23.r0.0.nc size: 365MB (see metadata) is the model in netCDF 3 Classic format. FWEA23.r0.0-n4.nc size: 200MB (see metadata)the same model in netCDF 4 Classic format with compression. |
| Model Home Page | None |
| Depth Coverage | 0 to 1000 km |
| Area | East Asia (5° S to 55° N and 65° E to 150° E) |
| Data Set Description | A total of 141 earthquakes and 4640 seismic stations were used in this study. The earthquakes were from 2008 to 2018 and had magnitudes ranging from Mw 5.5 to 7.2. The body wave windows were filtered to 15-100 s and the surface wave windows were filtered to 25-100 s and 70-130 s. |
Citations and DOIs
To cite the original work behind this Earth model:
- Chujie Liu, Rupak Banerjee, Stephen P. Grand, Eric Sandvol, Supriyo Mitra, Xiaofeng Liang, Shengji Wei, A high-resolution seismic velocity model for East Asia using full-waveform tomography: Constraints on India-Asia collisional tectonics, Earth and Planetary Science Letters, Volume 639, 2024, 118764, ISSN 0012-821X, https://doi.org/10.1016/j.epsl.2024.118764.
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.2024.fwea23.1
Credits
- r0.0 model provided by Chujie Liu.
Revision History
revision r0.0: uploaded May 30, 2024.
Timeline
- 2024-06-04
- r0.0 online
