Summary
An average of the TNA (Tectonic North America) and SNA (Shield North America) S velocity models of Grand and Helmberger (1984)
Quicklinks
Description
| Name | TNA/SNA |
| Title | Average of the TNA and SNA models |
| Type | 1-D Reference Earth Model |
| Sub Type | S velocity |
| Year | 2010 |
| Short Description | An average of the TNA (Tectonic North America) and SNA (Shield North America) S velocity models of Grand and Helmberger (1984) |
| Authors: | |
| Nathan A. Simmons | |
| Atmospheric, Earth and Energy Division | |
| Lawrence Livermore National Laboratory | |
| Livermore, California, USA | |
| Alessandro M. Forte | |
| GEOTOP, Departement des Sciences de la Terre et de l’Atmosphere | |
| Universite du Quebec | |
| Montreal, Montreal, Quebec, Canada | |
| Lapo Boschi | |
| Eidgenossische Technische Hochschule Honggerberg | |
| Institute of Geophysics, Zurich, Switzerland | |
| Stephen P. Grand | |
| Jackson School of Geosciences | |
| University of Texas at Austin | |
| Austin, Texas, USA | |
| Based on the models of Grand and Helmberger (1984) | |
| Stephen P. Grand | |
| Department of Geological Sciences | |
| The University of Texas | |
| Austin, Texas | |
| Donald V. Helmberger | |
| Division of Geological and Planetary Sciences | |
| California Institute of Technology | |
| Pasadena, California | |
| Base Model | TNA (Tectonic North America) & SNA (Shield North America) |
| Referenced by | GyPSuM |
| Model Download | |
| in its original format (StartingVsModel_TNA-SNA-average.txt ) with columns left to right representing Radius (km), and Vs (km/s) | |
| in comma separated value (CSV) file format (StartingVsModel_TNA-SNA-average.csv ) with columns left to right representing Radius (km), and Vs (km/s) | |
| in IDV CSV file format (StartingVsModel_TNA-SNA-average_IDV.csv ). | |
| Model Homepage | |
| Depth Coverage | 0 to 2891 km |
| Area | Point data |
Citations and DOIs
To cite the original work behind this Earth model:
- Simmons, N.A., A.M. Forte, L. Boschi, and S.P. Grand. 2010. “GyPSuM: A joint tomographic model of mantle density and seismic wave speeds.” J. Geophys. Res. 115:B12310.
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:
Reference
- Grand, S.P., and D.V. Helmberger. 1984. “Upper mantle shear structure of North America.” Geophys. J. R. Astr. Soc. 76:399-438.
Credits
- Nathan A. Simmons, Alessandro M. Forte, Lapo Bosch, and Stephen P. Grand
Timeline
- 2011-09-20
- Online
