Data Services 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.
The above model expressed as velocity perturbation relative to the PREM500 reference model:
SAW642ANB_percent.nc (see metadata ), is the netCDF file for the model
The above model expressed as km/s:
SAW642ANB_kmps.nc (see metadata ), is the netCDF file for the model
Model Homepage http://www.clas.ufl.edu/users/mpanning/SAW642ANb.html
Depth Coverage Whole Mantle (~50 to ~2850 km)
Area 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.

Citations and DOIs

To cite the original work behind this Earth model:

  • 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.

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

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

Timeline

2011-06-24
Online

Contact

Categories

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