Data Services Products: EMC-ENA_FWT2021 3-D shear-wave velocity model in eastern North America using full-wave ambient noise tomography

Summary

ENA_FWT2021 is a 3-D, high-resolution shear-wave velocity model of the eastern North American lithosphere constructed with full-wave ambient noise tomography by integrating onshore and offshore seismic datasets.

Description

Name ENA_FWT2021
Title 3-D shear-wave velocity model of the eastern North American lithosphere
Type 3-D Tomography Earth Model
Sub Type Shear wave velocity (km/s)
Year 2021
Data Revision r0.0 (revision history)
 
Short Description   A high-resolution shear-wave velocity model of the eastern North American lithosphere constructed with full-wave ambient noise tomography
 
Authors: Haiying Gao, Department of Geosciences, University of Massachusetts Amherst, 627 North Pleasant Street. Amherst, MA 01003, E-mail: haiyinggao@geo.umass.edu

Cong Li, Department of Geosciences, University of Massachusetts Amherst, 627 North Pleasant Street. Amherst, MA 01003, E-mail: conli@geo.umass.edu
 
Previous Model AK135
 
Reference Model None
 
Model Download ENA-FWT-2021-0.35deg.r0.0.nc (see metadata) in the Polar Stereographic Projection and in netCDF 3 Classic format.
Original Model Repository https://osf.io/ws2pn/
 
Depth Coverage 50-300 km
 
Area eastern North America (latitude: 25.8°/°48.4; longitude: 273.4°/294.9°)
 
Data Set Description The model file includes latitude, longitude, depth, and absolute S-wave velocity in eastern North America. The model was parameterized into a regular 0.35-degree horizontal grids in longitude and latitude directions. The vertical grid size increases with depth from one-third of the horizontal grid size for the top 15 km to ~5 km at 300 km depth.
 
 

(a) Distribution of seismic stations used in full-wave ambient noise tomography. The six black lines are the profile locations shown in (b). (b) NW-SE profiles of the seismic tomography model beneath eastern North America. The thick transparent red lines are our interpreted lithosphere-asthenosphere boundary. The two vertical dashed green lines mark the geologically-defined surface boundaries between the three tectonic provinces. The black lines above each profile represent the bathymetry/topography.

Citations and DOIs

To cite the original work behind this Earth model:

  • Gao, H., & Li, C. (2021). Lithospheric formation and evolution of eastern North American continent. Geophysical Research Letters, 48, e2020GL091074. https://doi.org/10.1029/2020GL091074

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.2021.enafwt.1

Credits

  • r0.0 model provided by Cong Li.

Revision History

revision r0.0: uploaded February 2, 2021.

Timeline

2021-02-02
Uploaded to EMC

Categories

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