Summary
This model uses Moho-generated Ps-P delay times derived from receiver functions recorded at 70 seismic stations around Mount St. Helens, Washington State in the Cascades arc. These are inverted for a local S wave tomography model that produces relative variations in S wave velocities. These are a proxy for relative variations in Vp/Vs.
Quicklinks
Description
| Name | MSH1_S_2023 |
| Title | Ps-P crustal tomography relative S wave model for Mount St. Helens |
| Type | 3-D Tomography Earth Model |
| Sub Type | Relative S-wave velocity (dVs) |
| Year | 2024 |
| Data Revision | r0.0 (revision history) |
| Short Description | This model uses Moho-generated Ps-P delay times derived from receiver functions recorded at 70 seismic stations around Mount St. Helens, Washington State in the Cascades arc. These are inverted for a local S wave tomography model that produces relative variations in S wave velocities. These are a proxy for relative variations in Vp/Vs. |
| Authors: | Daniel Evan Portner, Department of Earth and Environmental Science, New Mexico Institute for Mining and Technology, Socorro, NM Jonathan R. Delph, Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN Eric Kiser, Department of Geosciences, University of Arizona, Tucson, AZ Geoffrey A. Abers, Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY Alan Levander, Department of Earth, Environmental and Planetary Sciences, Rice University, Houston, TX Guanning Pang, Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY |
| Reference Model | custom |
| Prior Model | |
| Model Download | MSH1-S-2023.r0.0.nc (see metadata) is the model in netCDF 3 Classic format. |
| Model Home Page | https://github.com/danielportner/portner_data_products |
| Depth Coverage | surface to 60 km below sea level |
| Area | Mount St. Helens, Washington (45.30° to 47.26° and -123.60° to -120.54°) |
| Data Set Description | This model uses 6,064 Ps-P delay times recorded using receiver function analysis at 70 seismic stations. These stations come from the broadband component of the temporary iMUSH seismic network (code XD), available at the IRIS seismic data repository. |
Citations and DOIs
To cite the original work behind this Earth model:
- Portner, D. E., Delph, J. R., Kiser, E., Abers, G. A., Levander, A., & Pang, G. (2024). Validation of Ps-P tomography for obtaining 3D crustal VP/VS with small-N data sets: An application to the Mount St. Helens magmatic system. Journal of Geophysical Research: Solid Earth, 129, e2024JB029642. https://doi.org/10.1029/2024JB029642
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: https://doi.org/10.17611/dp/emc.2024.msh1s2023.1
Credits
- r0.0 model provided by Daniel Evan Portner.
Revision History
revision r0.0: uploaded September 26, 2024.
Timeline
- 2024-09-26
- r0.0 online
