A 3D tomographic model of vertically polarised shear wave velocity (Vsv) in the Pacific upper mantle, derived from Rayleigh wave phase delays. The dataset includes full 3D resolution and uncertainty estimates on a global grid with 2-degree lateral and 25 km vertical resolution, extending from the surface to approximately 400 km depth. It is linked to a paper by Latallerie et al. (in preparation) and associated code hosted on GitLab.
Use Cases
- Modeling upper-mantle shear wave velocity (Vsv) structure based on the 3D tomographic grid.
- Analyzing seismic wave dispersion patterns based on the measured Rayleigh wave phase delays.
- Assessing model resolution and uncertainty for tomographic inversions based on the provided 3D resolution data.
- Studying Pacific hemisphere mantle dynamics based on the earthquake-receiver pair measurements.
Strengths
- Includes full 3D resolution and uncertainty estimates for the tomographic model.
- The model grid has a defined spatial resolution of 2 degrees laterally and 25 km vertically.
- Data is linked to a specific methodological paper and an openly available code repository.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- The description does not specify the license, file formats, or exact sample data structure.
Provenance
- Source
- British Geological Survey (BGS)
- Collection Method
- Rayleigh wave phase delays measured from seismograms downloaded from the Earthscope (IRIS) Data Management Center, inverted using SOLA finite-frequency tomography.
- Time Range
- null
- Freshness
- Last updated 2026-04 09 08:27:29.717383; freshness should be verified.
- Geography
- Pacific hemisphere, with a global tomographic grid spanning the whole sphere.