DMS Products: EMC-SAW642ANb A global radially anisotropic mantle shear velocity model with improved crustal corrections

Summary

SAW642ANb, Panning, Lekic and Romanowicz (2010) , is a radially anisotropic shear velocity model of the mantel, parameterized in terms of isotropic S velocity (Voigt average) and the anisotropic parameter, xi (VSH2/VSV2). The waveform data used for this model consist of 3-component broad-band surface waveforms (short period corner of 80 seconds and cutoff of 60 seconds) as well as body waveforms (short period corner of 40 s and cutoff of 32 s). The spatial parameterization of the model is the same as SAW642AN , with 16 variably spaced cubic b-splines with depth, and level 4 spherical splines laterally. Model values are percent perturbation relative to the anisotropic reference model PREM500 .

Description

Name SAW642ANb
Title A global radially anisotropic mantle shear velocity model with improved crustal corrections
Type 3-D Tomography Earth Model
Sub Type Anisotropic S velocity
Year 2010
Short Description   SAW642ANb is a radially anisotropic shear velocity model, parameterized in terms of isotropic S velocity (Voigt average) and the anisotropic parameter, xi (Vsh2/Vsv2).
Authors:  
M. P. Panning
Department of Geological Sciences
University of Florida
Gainesville, FL
Ved Lekic
Berkeley Seismological Laboratory
University of California
Berkeley, CA
B. A. Romanowicz
Berkeley Seismological Laboratory
University of California
Berkeley, CA
Previous Model SAW642AN [Panning and Romanowicz (2006) ]
Reference Model PREM500
Model Download
gzipped tarfile (~2.9 MB), includes all necessary model files, including the earlier model SAW642AN, as well as some tools for obtaining model values at specified locations in the mantle and making some basic plots.
SAW642ANB_percent.nc (metadata), is the netCDF binary for the above model expressed as velocity perturbation relative to the PREM500 reference model.
SAW642ANB_kmps.nc (metadata), is the netCDF binary for the above model expressed as km/s.
Model Homepage www.clas.ufl.edu/users/mpanning/SAW642ANb.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 3-component broad-band surface waveforms (short period corner of 80 seconds and cutoff of 60 seconds) as well as body waveforms (short period corner of 40 s and cutoff of 32 s). The final 124 dataset includes over 120,000 wave packets with over 4 million data points.

lateral sections of SAW642ANb of perturbations in Vs for several depths in the mantle

Figure, Panning, Lekic and Romanowicz (2010) , shows lateral sections of SAW642ANb of perturbations in Vs for several depths in the mantle.

Citation

  • Panning, M.P., V. Lekic, and B.A. Romanowicz. 2010. “The importance of crustal corrections in the development of a new global model of radial anisotropy.” J. Geophys. Res. 115.
  • 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 application, Seismological Research Letters, 83(6), 846:854. doi: 10.1785/0220 120032 .

Credits

  • M.P. Panning, V. Lekic, and B.A. Romanowicz

DOI

There is no DOI currently assigned for this product.

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