Summary
Quicklinks
Description
| Name | GLAD-M15 |
| Title | Global adjoint tomography: first-generation model |
| Type | 3-D Tomography Earth Model |
| Sub Type | Anisotropic (in the uppermost mantle) |
| Year | 2016 |
| Data Revision | r.0.0 (revision history) |
| Short Description | GLAD-M15 is an elastic model with radial anisotropy confined to the upper mantle, similar to its predecessor S362ANI. The 1-D reference model is STW105. |
| Authors: | Ebru Bozdağ: Department of Geophysics Colorado School of Mines Golden, USA Daniel Peter: Extreme Computing Research Center King Abdullah University of Science and Technology (KAUST) Thuwal, Kingdom of Saudi Arabia Matthieu Lefebvre: Department of Geosciences Princeton University Princeton, USA Dimitri Komatitsch: LMA Aix-Marseille University Centrale Marseille, France Jeroen Tromp: Department of Geosciences Princeton University Princeton, USA Judith Hill: Oak Ridge National Laboratory Oak Ridge, USA Norbert Podhorszki: Oak Ridge National Laboratory Oak Ridge, USA David Pugmire: Oak Ridge National Laboratory Oak Ridge, USA |
| Author of parametrization: | Caio Ciardelli: Department of Geophysics Institute of Astronomy, Geophysics and Atmospheric Sciences – USP São Paulo, Brazil |
| Previous Model | S362ANI |
| Reference Model | STW105 |
| Model Download |
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| Usage Notes | SphGLLTools (Ciardelli et al., 2021) is a toolbox for visualization, processing, sharing, and spherical harmonics analysis of tomographic models defined on GLL meshes that could be used with the full-resolution model. |
| Model Homepage | https://github.com/caiociardelli/gladm15 |
| Depth Coverage | Whole Mantle (25 to 2890 km) |
| Area | Global (latitudes: -90°/90°, longitudes: -180°/180°) |
| Data Set Description | 253 earthquakes in the moment-magnitude range 5.8 ≤ M w ≤ 7.0. The events were chosen to provide broad geographical coverage, including shallow (depth ≤ 50 km), intermediate (50 km > depth > 300 km), and deep (depth ≥ 300 km) events. Because we used relatively long-period data (>17 s) and events with magnitudes less than 7, we chose a Centroid Moment-Tensor (CMT) pointsource earthquake representation. We used four M w = 5.8 earthquakes from the East African Rift Valley and the Eastern US (the 2011 Virginia earthquake) to improve coverage, since higher-magnitude events are not observed in these regions. Initial CMT solutions were selected from the global CMT catalogue. |
Citations and DOIs
To cite the original work behind this Earth model:
- Bozdağ, E., Peter, D., Lefebvre, M., Komatitsch, D., Tromp, J., Hill, J., Podhorszki, N., Pugmire, D., 2016. Global adjoint tomography: first-generation model. Geophysical Journal International 207, 1739–1766. URL: https://doi.org/10.1093/gji/ggw356.
To cite the model parametrization effort: *Ciardelli, C., Bozdağ, E., Peter, D., & Van der Lee, S. (2022). SphGLLTools: A toolbox for visualization of large seismic model files based on 3D spectral-element meshes. Computers & Geosciences, 159, 105007, https://doi.org/10.1016/j.cageo.2021.105007
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.2020.gladm1500.1
References
- Ciardelli, C., Bozdağ, E., Peter, D., and van der Lee, S., 2021. SphGLLTools: A toolbox for visualization of large seismic model files based on 3D spectral-element meshes. Computer & Geosciences, v. 159, 105007, https://doi.org/20.1016/j.cageo.2021.105007.
Credits
- r.0.0 model provided by Ebru Bozdağ & Caio Ciardelli.
Revision History
revision r.0.0: uploaded October 29, 2020.
Timeline
- 2022-05-23
- online
