Toward an Accessible Framework for Synthesizing Solid Earth Models Across Multiple Scales
Description:
Solid Earth models describing the spatiotemporal variations of the subsurface material properties, including but not limited to the distribution of elastic parameters, density, porosity, temperature, viscosity, resistivity, and magnetic susceptibility, from the surface to the core represent the most fundamental product for studying the structure, composition, and evolution of our planet and for informing natural hazard assessment. These models are developed at various scales ranging from local to global. However, the lack of infrastructure to synthesize multiple multiscale Earth models restricts research investigations to single models with limited spatial resolution, thus hindering scientific discoveries in the broader Solid Earth community. Here, we introduce a flexible, user-friendly program for multiscale model synthesis. New technologies and techniques in seismology, such as the application of machine learning, nodal or dense seismic arrays, and fiber-optic sensing, have enabled the rapid development of local Earth models in fault zones and sedimentary basins that have structural details lacking in the more regional and global models. Therefore, incorporating such detailed local models into existing regional or global models will enhance structural and source studies, including Earth model inversion, development of high-resolution earthquake catalogs, physics-based ground motion modeling, dynamic earthquake rupture modeling, and earthquake hazard assessment. We illustrate an application to the West Coast of the U.S. (California and Cascadia) using publicly available local-to-regional seismic wave speed models to develop seamless composite state-wide multiscale Earth models.
Session: Earth’s Structure from the Crust to the Core [Poster]
Type: Poster
Date: 4/16/2025
Presentation Time: 08:00 AM (local time)
Presenting Author: Rasheed
Student Presenter: No
Invited Presentation:
Poster Number: 86
Authors
Rasheed Ajala Presenting Author Corresponding Author rajala@ldeo.columbia.edu Columbia University |
Folarin Kolawole fola@ldeo.columbia.edu Columbia University |
Pieter-Ewald Share pieter.share@oregonstate.edu Oregon State University |
Valerie Sahakian vjs@uoregon.edu University of Oregon |
Jonathan Delph jdelph@purdue.edu Purdue University |
Emilie Hooft emilie@uoregon.edu University of Oregon |
Bin He he855@purdue.edu Purdue University |
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Toward an Accessible Framework for Synthesizing Solid Earth Models Across Multiple Scales
Category
Earth’s Structure from the Crust to the Core