Two datasets of surface-wave dispersion measurements for paths across the Pacific, used by Latallerie et al. (2024) to build a Vs model of the Pacific upper-mantle. Measurements are provided for source-receiver pairs across frequencies from 6 to 21 mHz, every 1 mHz, using a multi-taper technique with the first 5 Slepians.
Use Cases
- Invert surface-wave dispersion measurements to build a 3D Vs model of the Pacific upper-mantle using SOLA inversion and finite-frequency theory.
- Conduct a synthetic tomography study by comparing dispersion measurements between synthetic reference and 3D model seismograms to retrieve input Vs structure.
- Analyze measurement uncertainty, derived as the standard deviation across the first 5 Slepian tapers, to assess data quality for each source-receiver pair.
- Model frequency-dependent dispersion behavior across the 6 to 21 mHz range to study upper-mantle seismic properties.
Strengths
- Data covers a specific frequency range from 6 to 21 mHz with 1 mHz resolution.
- Measurement algorithm employs the multi-taper technique using the first 5 Slepians for robust spectral estimation.
- Includes both real-versus-synthetic and synthetic-versus-synthetic measurements for validation and method testing.
- Dataset is directly cited in peer-reviewed research (Latallerie et al., 2024) for building a 3D Vs model.
Limitations
- Spatial coverage is limited to source-receiver paths across the Pacific Ocean, not global.
- Unknown total number of measurements (rows) and specific data structure (columns).
- Relies on specific synthetic reference models (stw105, S362ANI), which may introduce model-dependent biases.
Provenance
- Source
- British Geological Survey (BGS).
- Collection Method
- Dispersion measured between synthetic and real (or synthetic and synthetic) seismograms using normal-mode summation (MINEOS) and spectral element method (Specfem) software, processed with a multi-taper technique.
- Time Range
- 2023 - 2024.
- Freshness
- Data last updated in March 2026, with measurements from 2023-2024.
- Geography
- Paths across the Pacific Ocean.