Data Services Products: EMC-NWUS11-P A 3-D P-wave tomography model for the northwestern United States

Summary

A 3-D P-wave tomography model for the northwestern United States, James et al. (2011) . The P-wave inversion for NWUS11-P is based on a total of 79,212 rays from 461 teleseismic events, with typical bandpass filter range of 0.5-1.5 Hz. The percent velocity perturbations reported by this model are insensitive to the starting 1-D reference model.

Description

Name NWUS11-P
Title A 3-D P-wave tomography model for the northwestern United States
Type 3-D Tomography Earth Model
Sub Type P velocity perturbation (%)
Year 2011
Short Description   NWUS11-P is based on the analysis of relative arrival times of P-waves, obtained primarily from multi-channel cross correlation of recordings at USArray Transportable Array (TA) and the High Lava Plains seismic experiment (James et al. (2011) ).
Authors:  
David E. James
Department of Terrestrial Magnetism
Carnegie Institution of Washington
Washington, DC
Matthew J. Fouch
School of Earth and Space Exploration
Arizona State University
(now at Department of Terrestrial Magnetism, Carnegie Institution of Washington)
Tempe, Arizona
Richard W. Carlson
Department of Terrestrial Magnetism
Carnegie Institution of Washington
Washington, DC
Jeffrey B. Roth
ExxonMobil Exploration Company
Houston, TX
Previous Model
Reference Model N/A
Model Download
NWUS11-P model in its original format as a compressed text file (NWUS11-P.txt.gz ) that includes the model values from each node of the P-wave model for depths of good resolution (50 km to 1200 km depth). Note that the nodes grow larger toward the lateral edges and the bottom of the model (see text for details). The order of columns is: Depth(km) Latitude(deg N) Longitude(deg W) %velocity_perturbation. A value of “999.00000” signifies a node with a low hit count and is thus considered very poorly constrained.
 
NWUS11-P_percent.nc (metadata ), is the netCDF binary for the above model.
Model Homepage
Depth Coverage 50 to 1200 km
Areal Coverage Northwestern United States (32°/54°, -130°/-104°)
 
Data Set Description [ James et al. (2011) ] The P-wave inversion for NWUS11-P is based on a total of 79,212 rays from 461 teleseismic events, with typical bandpass filter range of 0.5-1.5 Hz.

model NWUS11-P P velocity perturbation at 6 depths
Figure, James et al. (2011) , shows model NWUS11-P P velocity perturbation at 6 depths.

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:

  • James D.E., M.J. Fouch, R.W. Carlson and J.B. Roth. 2011. “Slab fragmentation, edge flow and the origin of the Yellowstone hotspot track.” Earth Planet. Sci. Lett., doi:10.1016/j.epsl.2011.09.007.

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

  • IRIS DMC (2011), Data Services Products: NWUS11-P, a 3-D P-wave tomography model for the northwestern United States, doi:10.17611/DP/9991662.

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

Credits

  • D.E. James, M.J. Fouch, R.W. Carlson and J.B. Roth

Timeline

2011-10-03
Online

Categories

Tags

EMC