Data Services Products: EMC-US-SL-2014 P and S teleseismic body-wave tomography of the mantle beneath the United States

Summary

US-SL-2014 model, Schmandt & Lin (2014), is a P and S teleseismic body-wave tomography of the mantle beneath the United States.

Description

Name US-SL-2014
Title P and S teleseismic body-wave tomography of the mantle beneath the United States
Type 3-D Tomography Earth Model
Sub Type P and S velocity perturbations(%)
Year 2014
Short
Description
  
Teleseismic travel-time residuals from the EarthScope Transportable Array and more than 1900 additional stations are inverted for 3-D velocity perturbations. The inversion uses frequency-dependent 3-D sensitivity kernels to map travel-time residuals, measured in multiple frequency bands, into velocity structure. A surface-wave tomography starting model was used to mitigate the potential for crustal structure to create artifacts at mantle depths.
Authors:  
Brandon Schmandt
  Department of Earth and Planetary Science
  University of New Mexico
 
Fan-Chi Lin
  Department of Geology and Geophysics
  University of Utah
 
Previous Model wUS-SH-2010
Reference Model N/A
Model Download
US-SL-2014_percent.nc (see metadata ), is the netCDF file for the model
Model Homepage
Depth Coverage 60 — 1220 km
Areal Coverage The contiguous United States (approx. 24° to 50° Latitude and -125° to -67° Longitude)
 
Data Set Description The dataset includes 516,688 multi-frequency P-wave travel time residuals and 223,462 S-wave travel time residuals.
 
Supplemental Information
 

Tomography maps of the shallow upper mantle
[Schmandt & Lin, 2014] Tomography maps of the shallow upper mantle. A) P-wave tomography at a depth of 75 km. The black dashed lines indicate Precambrian rift margins, and the white dashed line denotes the Rocky Mountain front. The locations of low-velocity anomalies beneath the central Appalachians (CAA) and northern Appalachians (NAA) are labeled in panel (D). B) S-wave tomography at 75 km depth. C) P-wave tomography at 200 km depth. D) S-wave tomography at 200 km depth.

Citations and DOIs

To cite the original work behind this Earth model:

  • Schmandt, B., and F.-C. Lin (2014), P and S wave tomography of the mantle beneath the United States, Geophys. Res. Lett., 41, doi:10.1002/2014GL061231.

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

Model provided by Brandon Schmandt

Timeline

2014-10-21
US-SL-2014 online : US-SL-2014 model added to EMC

Categories

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