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 .
Quicklinks
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 |
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The above model expressed as km/s: SAW642ANB_kmps.nc (see metadata ), is the netCDF file for the model |
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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. |
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