Summary
DNA13 model, Porritt, Allen, & Pollitz (2014), provides three independent body-wave derived estimates of the wave-speed for the contiguous US. Teleseismic and ambient noise derived phase velocities are utilized in a joint inversion with the SV component body waves.
Quicklinks
Description
| Name | DNA13 |
| Title | P- and S-velocity models for the western US integrating body- and surface-wave constraints |
| Type | 3-D Tomography Earth Model |
| Sub Type | P and S velocity perturbations(%) |
| Year | 2014 |
| Short Description | The DNA13 model integrates teleseismic body-wave traveltime and surface-wave phase velocity measurements into a single inversion to constrain the P- and S-wave velocity structure beneath the contiguous US (from the Pacific coast to ~70° W, from Mexico to Canada). |
| Authors: | |
| Robert Porritt | |
| Department of Earth and Planetary Science | |
| University of California, Berkeley (now at University of Southern California) | |
| California, USA | |
| Richard M. Allen | |
| Department of Earth and Planetary Science | |
| University of California, Berkeley | |
| California, USA | |
| Fred Pollitz | |
| US Geological Survey | |
| Menlo Park, CA, USA | |
| Previous Model | This model is derived via the same methodology as DNA09 and DNA10-S, but the input dataset is independent from previous models. |
| Reference Model | N/A |
| Model Download | |
| original model files from the model download page | |
| DNA13_percent.nc (see metadata ), is the netCDF file for the model | |
| Model Homepage | http://seismo.berkeley.edu/~rallen/pub/2014porritt |
| Depth Coverage | 0 to 1280km (best resolution 0 to 1000km) |
| Area | (P, SH, and SV) contiguous United States (25°/52°, -126°/-72°) |
| (SV-Joint) contiguous United States (25°/52°, -126°/-90°) | |
| Data Set Description | [ Porritt et al. (2014) ] The station distribution used in this study covers all of the contiguous United States. This includes more than 2200 stations from the USArray transportable array, regional seismic networks, and temporary seismic deployments. Data were recorded from 2007 January to 2012 December. Relative traveltimes of teleseismic body waves (P, SV, and SH) obtained from about 400 earthquakes, surface wave phase velocity measurements from 167 eartqhuakes, and 5 years of ambient noise data were used to constrain the model. |
| Supplemental Information | The supplemental information page for this model contains information on resolution, phase ray and velocity as well as uncertainties for this model. |
Citations and DOIs
To cite the original work behind this Earth model:
- Porritt, R. W., R.M. Allen, and F. F. Pollitz. 2014. “Seismic imaging east of the Rocky Mountains with USArray.” Earth Planet. Sci. Lett. https://doi.org/10.1016/j.epsl.2013.10.034.
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 Robert Porritt
Timeline
- 2014-01-27
- Online
