Summary
SAW642AN, Panning and Romanowicz (2006) , is a radially anisotropic shear velocity model, parameterized in terms of isotropic S velocity (Voigt average) and the anisotropic parameter, xi (VSH2/VSV2). Model values are percent perturbation relative to the anisotropic reference model PREM500 .
Quicklinks
Description
| Name | SAW642AN |
| Title | A global radially anisotropic mantle shear velocity model |
| Type | 3-D Tomography Earth Model |
| Sub Type | Anisotropic S velocity |
| Year | 2006 |
| Short Description | SAW642AN is a radially anisotropic shear velocity model, parameterized in terms of isotropic S velocity (Voigt average) and the anisotropic parameter, xi (Vsh2/Vsv2). |
| Authors: | |
| Charles Megnin | |
| Berkeley Seismological Laboratory | |
| University of California, Berkeley | |
| Barbara Romanowicz | |
| Berkeley Seismological Laboratory | |
| University of California, Berkeley | |
| Previous Model | |
| Reference Model | PREM500 |
| Model Download | |
| gzipped tarfile (~2.9 MB) includes all necessary model files, as well as some tools for obtaining model values at specified locations in the mantle. | |
| The above model expressed as percent S-velocity perturbation relative to PREM500 : SAW642AN_percent.nc (see metadata ), is the netCDF file for the model |
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| The above model expressed in km/s.: SAW642AN_kmps.nc (see metadata ), is the netCDF file for the model |
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| Model Homepage | http://www.clas.ufl.edu/users/mpanning/SAW642AN.html |
| Depth Coverage | Whole Mantle (~50 to ~2850 km) |
| Area | Global (-90°/90°, -180°/180°) |
| Data Set Description | The waveform data used consists of three-component long period time-domain ground acceleration seismic waveforms divided into three-component surface and body wave packets from 1191 events. |
Citations and DOIs
To cite the original work behind this Earth model:
- Megnin, Charles and Barbara Romanowicz. 2000. “The shear velocity structure of the mantle from the inversion of of body, surface and higher modes waveforms.”, Geophys. J. Int. 143:709-728.
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:
Credits
- Charles Megnin and Barbara Romanowicz
Timeline
- 2011-06-24
- Online
