Data Services Products: EMC-HMSL-P06 a global compressional velocity model of the mantle from cluster analysis of long-period waveforms

Summary

HMSL-P06, Houser et al. (2008) , is an isotropic P velocity model with 18 layers (approximately 100 km thickness in the upper mantle and 200 km in the lower mantle) and 2578 blocks in each layer (approximately 4 degree equal area blocks at the equator).

Description

Name HMSL-P06
Title A global compressional velocity model of the mantle from cluster analysis of long-period waveforms
Type 3-D Tomography Earth Model
Sub Type Compressional velocity perturbation (%)
Year 2006
 
Short Description   HMSL-P06 is an isotropic P velocity model with 18 layers (approximately 100 km thickness in the upper mantle and 200 km in the lower mantle) and 2578 blocks in each layer (approximately 4 degree equal area blocks at the equator). The upper mantle is constrained to be a scaled version of HMSL-S06 using the ratio dlnVs=1.7*dlnVp since we do not use upper mantle P phases. The lower mantle is constrained by long period P, PP, and PP-P travel times. Corrections are made for CRUST2.0 and ellipticity. While ak135 is the 1D model used for ray tracing in the inversion, the travel time measurements for each phase have the mean removed, so the 3D model is not built with respect to any particular 1D model.
Authors:  
Christine Houser
  U.C. San Diego (now at UCSC Earth Sciences)
  California, USA
T. Guy Masters
  U.C. San Diego
  California, USA
Peter Shearer
  U.C. San Diego
  California, USA
Gabi Laske
  U.C. San Diego
  California, USA
 
Previous Model
Reference Model Corrections are made for CRUST2.0 and ellipticity. While ak135 is the 1D model used for ray tracing in the inversion, the travel time measurements for each phase have the mean removed, so the 3D model is not built with respect to any particular 1D model.
Model Download
The original model files from the model download page.
HMSL-P06_percent.nc (metadata )
Model Homepage es.ucsc.edu/~creif/Sites/Christine_Houser/Models.html
Depth Coverage 0 to 2900 km
Areal Coverage Global (-90°/90°, -180°/180°)
 
Data Set Description

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:

  • Houser, C., G. Masters, P. Shearer and G. Laske. 2008. “Shear and compressional velocity models of the mantle from cluster analysis of long-period waveforms.” Geophys. J. Int., 174:195-212.].

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

  • IRIS DMC (2012), Data Services Products: HMSL-P06, a global compressional velocity model of the mantle from cluster analysis of long-period waveforms, doi:10.17611/DP/9991631.

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

Credits

  • C. Houser, G. Masters, P. Shearer and G. Laske

Timeline

2012-03-19
Online

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