Data Services Products: EMC-SAW642AN A global radially anisotropic mantle shear velocity model

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 .

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.
SAW642AN_percent.nc (metadata )is the netCDF binary for the above model expressed as percent S-velocity perturbation relative to PREM500 .
SAW642AN_kmps.nc (metadata )is the netCDF binary for the above model expressed in km/s.
Model Homepage www.clas.ufl.edu/users/mpanning/SAW642AN.html
Depth Coverage Whole Mantle (~50 to ~2850 km)
Areal Coverage 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.

lateral sections of SAW642AN of perturbations in Vs for several depths in the mantle
Figure, Panning and Romanowicz (2006) , shows lateral sections of SAW642AN of perturbations in Vs for several depths in the mantle.

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, doi:10.1785/0220120032.

To cite the source of 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 reference the use of this Earth model hosted by EMC:

  • IRIS DMC (2011), Data Services Products: SAW642AN, a global radially anisotropic mantle shear velocity model, doi:10.17611/DP/9991707.

To cite IRIS Earth Model Collaboration (EMC) data product or reference use of its repository:

Credits

  • Charles Megnin and Barbara Romanowicz

Timeline

2011-06-24
Online

Categories

Tags

EMC