Building, Using and Validating 3D Geophysical Models [Poster]
Date: 4/25/2019
Room: Grand Ballroom
Geophysical models, such as 3D geologic and seismic velocity models, are needed in three and sometimes four dimensions for a host of applications from predicting earthquake ground motions to locating natural resources to planning subsurface infrastructure. Many types of observations can be used to inform geophysical models including geologic mapping, borehole data, active and passive seismic imaging, potential field observations and observations from other direct and indirect methods. Geophysical theory or empirical models may also be used to solve for missing geophysical attributes given other related observations, for example, solving for S-wave velocity and density given the P-wave velocity. Further, some observations sample distinct locations while others average over volumes of varying size and different methods of informed interpolation and extrapolation may be used to reconcile observations, theory and empirical relationships into a single geophysical model. We seek contributions in which researchers have developed and/or applied methods for reconciling multiple datasets into a unified geophysical model. Discussion should address the advantages and disadvantages of various types of datasets and methods in an effort to improve and validate the next generation of geophysical models. Applications of geophysical models to improve assessment of hazard and risk, particularly in novel ways or for novel applications, are also encouraged.
Conveners
Oliver Boyd, U.S. Geological Survey (olboyd@usgs.gov)
Bill Stephenson, U.S. Geological Survey (wstephens@usgs.gov)
Brad Aagaard, U.S. Geological Survey (baagaard@usgs.gov)
Poster Presentations
| Participant Role | Details | Action |
|---|---|---|
| Submission | Updating the USGS San Francisco Bay Area 3D Seismic Velocity Model to Improve Ground Motion Estimates | View |
| Submission | Regionalized Properties of the Lowermost Mantle From Spherical Slepian Analysis | View |
| Submission | Recent Improvements to the SCEC Unified Community Velocity Model (UCVM) Software Framework | View |
| Submission | Cascadia 3D P- and S-Wave Velocity Model for Ground Motion Simulations: Past, Present and Future | View |
| Submission | Sensitivity Tests of Topographic Effects on 3D Simulated Ground Motions in Reno, Nevada | View |
| Submission | Three-Dimensional Tomography of the Crust and Uppermost Mantle of Eastern Nepal | View |
| Submission | High Resolution 3D Wavespeed Model of the Iranian Plateau Lithosphere | View |
| Submission | Building a Three Dimensional Model of Plio-Quaternary Basin of Argostoli (Cephalonia Island, Greece) From an Integrated Geophysical and Geological Approach to Perform Numerical Simulations of Seismic Motion | View |
| Submission | Updates to the Regional Seismic Travel Time (RSTT) Tomography Model | View |
| Submission | A Bayesian Approach to Regional Phase Blockage Imputation at the Iranian Plateau | View |
| Submission | Towards and Understanding of the Stability of Lg Amplitudes | View |
| Submission | Ambient Noise Empirical Green’s Function Full Waveform Tomography for the Northern Mississippi Embayment | View |
| Submission | Subsurface Structure of Yatsushiro Plain, Japan Inferred From the Observed H/V Spectral Ratio of Microtremors | View |
| Submission | Complicated Crustal Structure Beneath Northeast China Revealed by Receiver Function Analyses | View |
Building, Using and Validating 3D Geophysical Models [Poster]
Description