Summary
GyPSuM, Simmons, Forte, Boschi & Grand (2010) , is a tomographic model of mantle seismic wave speeds developed through simultaneous inversion of seismic body wave travel times and geodynamic observations.
Quicklinks
Description
Name | GyPSuM |
Title | A global 3-D model of mantle shear wave (S) and compressional (P) speeds |
Type | 3-D Tomography Earth Model |
Sub Type | P & S velocities |
Year | 2010 |
Short Description | GyPSuM is a tomographic model of mantle seismic wave speeds developed through simultaneous inversion of seismic body wave travel times and geodynamic observations. |
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 | |
Previous Model | |
Reference Model | The reference P-wave model is the 1-s, isotropic equivalent PREM [Table II of Dziewonski and Anderson (1981) ]. The S-wave model is based on the averaged TNA/SNA model. |
Model Download | |
One-degree gridded version of the model zip file (~8.8 MB) includes all necessary model files. | |
The above model expressed as percent P- & S- velocity perturbations: GYPSUM_percent.nc (metadata ), is the netCDF file for the model |
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The P-wave velocity for the above model expressed in km/s: GYPSUMP_kmps.nc (metadata ), is the netCDF file for the model |
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The S-wave velocity for the above model expressed in km/s: GYPSUMS_kmps.nc (metadata ), is the netCDF file for the model |
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Model Homepage | |
Depth Coverage | 0 to 2900 km |
Areal Coverage | Global (-90°/90°, -180°/180°) |
Data Set Description | The seismic data used consist of globally distributed, teleseismic S wave and P wave travel time observations that are not restricted to common source-receiver pairs. The geodynamic data includes the free air gravity field from the EGM96 geopotential model. |
Citations and DOIs
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.
To cite the source of 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 reference the use of this Earth model hosted by EMC:
- IRIS DMC (2011), Data Services Products: GyPSuM, a global 3-D model of mantle shear wave (S) and compressional (P) speeds, https://doi.org/10.17611/DP/9991624.
To cite IRIS Earth Model Collaboration (EMC) data product or reference use of its repository:
- IRIS DMC (2011), Data Services Products: EMC, A repository of Earth models, https://doi.org/10.17611/DP/EMC.1.
Credits
N.A. Simmons, A.M. Forte, L. Boschi, and S.P. Grand
Timeline
- 2011-09-20
- GyPSuM tomography model online
- 2015-01-07
- Unified depths of the GyPSuM kmps models.