Summary
A new three-dimensional radially anisotropic shear-wave velocity model developed from surface wave tomography.
Quicklinks
Description
| Name | NE-US-Radial-Tao-Li-2024 |
| Title | 3-D radially anisotropic shear wave velocity of the Northeastern America |
| Type | 3-D Tomography Earth Model |
| Sub Type | Shear-wave velocity (km/s) and radial anisotropy |
| Year | 2024 |
| Data Revision | r0.0 (revision history) |
| Short Description | A 3-D radially anisotropic shear-wave velocity model of the crust and upper mantle beneath Northeastern America has been developed from surface wave inversion. The surface wave data used in this study were recorded at the USArray Transportable Array (TA) in northeastern America with magnitude ≥ 5.5, focal depth ≤ 100 km, and epicentral distance between 25° and 120°. Fundamental mode Rayleigh and Love waves are extracted at frequencies from 6 to 50 mHz. A two-plane wave inversion method (Li & Li, 2015; Forsyth & Li, 2005; Yang & Forsyth, 2006) was adopted to compute isotropic Rayleigh and Love wave phase velocities, which are then used to invert for isotropic Vs and Vsh models, as well as jointly invert for radially anisotropic shear wave velocity models. |
| Authors: | Zhongmin Tao, Department of Earth and Atmospheric Sciences, University of Houston, E-mail: zhongmin.tao@gmail.com Aibing Li, Department of Earth and Atmospheric Sciences, University of Houston, E-mail: ali2@uh.edu |
| Reference Model | None |
| Prior Model | None |
| Model Download | NE-US-Radial-Tao-Li-2024.r0.0.nc (see metadata) is the model in netCDF 3 Classic format. |
| Model Home Page | None |
| Depth Coverage | 0-300 km |
| Area | Northeastern American (latitude: 38°/48°; longitude: -84°/-69°) |
| Data Set Description | Our model extends from longitude -84°W to -69°W, latitude 38°N to 48°N, and depths ranging from the surface down to 300 km. We parametrize the model domain into 0.2° × 0.2° in the longitudinal and latitudinal directions. The vertical grid spacing is depth dependent, increasing from 15km in the crust (0-40km) to 20 km in the mantle, down to a depth of 300 km. |
US-Radial-Tao-Li-2024 at various depths.
Citations and DOIs
To cite the original work behind this Earth model:
- Tao, Z., Li, A., Wu, J., & Fischer, K. M. (2025). Revealing the Cape Verde Hotspot Track Across the Great Lakes. Geophysical Research Letters, 52(1), e2024GL110777. https://doi.org/10.1029/2024GL110777
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.neusradialtaoli2024.1
Credits
- r0.0 model provided by Zhongmin Tao.
Revision History
revision r0.0: uploaded January 6, 2025.
Timeline
- 2025-01-13
- r0.0 online
