Summary
An elastic model with radial anisotropy confined to the upper mantle. The model is the successor of GLAD-M25 with a 50% increase in event number and more than double the number of windows.
Quicklinks
Description
| Name | GLAD-M35 |
| Title | A joint P and S global tomographic model with uncertainty quantification |
| Type | 3-D Tomography Earth Model |
| Sub Type | Joint P and S velocity, Uncertainty, Anisotropic (in the uppermost mantle) |
| Year | 2024 |
| Data Revision | r.0.1 (revision history) |
| Notes | r.0.1: Flattened the topography of 410km and 660km boundaries, which removes the wave speed discontinuities in the layers around them. |
| Short Description | An elastic model with radial anisotropy confined to the upper mantle. The model is the successor of GLAD-M25 with a 50% increase in event number and more than double the number of windows. GLAD-M35 features improved constraints on the deep mantle, especially compressional wave speed which is typically harder to constrain than shear wave speed. An estimation of the standard deviation of the model parameters based on the BFGS update history is provided. |
| Authors: | Congyue Cui, Department of Geosciences, Princeton University, Princeton, NJ, USA Wenjie Lei, Google, Mountain View, NJ, USA Qiancheng Liu, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China Daniel Peter, St. Gallen, Switzerland Ebru Bozdağ, Departments of Applied Mathematics & Statistics and Geophysics, Colorado School of Mines, Golden, CO, USA Jeroen Tromp, Program in Applied and Computational Mathematics, Princeton University, Princeton, NJ, USA Norbert Podhorszki, Lawrence Livermore National Laboratory, Livermore, CA, USA David Pugmire, Oak Ridge National Laboratory, Oak Ridge, TN, USA |
| Previous Model | GLAD-M25 |
| Reference Model | STW105 |
| Model Homepage | https://github.com/icui/glad-m35 |
| Model Download |
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| Depth Coverage | Whole Mantle (10 to 2890 km) |
| Area | Global (-90°/90°, longitudes: -180°/180°) |
| Data Set Description | 2,160 earthquakes selected from the Global CMT Catalog, and whose waveforms we downloaded from many data centers, including IRIS, ORFEUS, INGV, IPGP, ETH, and GEONET. Global Seismic Network (II, IU, IC, US, CU, and GT), GEOFON (GE), GEOSCOPE (G), regional and temporary networks, such as US Array (TA), Africa Array (AF), the Canadian National Seismograph Network (CN), Geoscience Australia (AU), the Antarctic Seismographic Argentinean Italian Network (AI), the New Zealand National Seismograph Network (NZ), and the F-net broadband seismograph network by NIED, MedNet (MN), the Brazilian Lithospheric Seismic Project (BL), the Chilean National Seismic Network©, and the Japan Meteorological Agency Seismic Network (JP). |
Citations and DOIs
To cite the original work behind this Earth model:
- Congyue Cui, Wenjie Lei, Qiancheng Liu, Daniel Peter, Ebru Bozd ̆ ag, Jeroen Tromp, Judith Hill, Norbert Podhorszki, and David Pugmire, GLAD-M35: A joint P and S global tomographic model with uncertainty quantification, Geophys. J. Int, 2024, Accepted, https://doi.org/10.1093/gji/ggae270.
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.gladm35.1
Credits
- r.0.0 model provided by Congyue Cui.
- r.0.1 model provided by Congyue Cui.
Revision History
revision r.0.0: uploaded August 5, 2024.
revision r.0.1: uploaded August 12, 2024.
Timeline
- 2024-08-09
- r0.0 online
- 2024-08-12
- r0.1 online
