An Appraisal of the Performance and Characteristics of Summary Rays Calculated for the SALSA3D Traveltime Dataset

Technical Report · Fri Sep 01 00:00:00 EDT 2023

DOI:https://doi.org/10.2172/2517933· OSTI ID:2517933

Hariharan, Anant ^[1]; Porritt, Robert William ^[1]; Conley, Andrea C. ^[1]

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1. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

The SALSA3D tomographic model provides a crucial community resource for improving the quality (in terms of both accuracy and precision) of predictions of the traveltimes of seismic waves and therefore improving our ability to locate anthropogenic or natural seismic events. Constructing the requisite tomographic model requires addressing the challenges implied by a massive and growing dataset of traveltime measurements. This study explores one approach to tackle this challenge: the use of summary rays, which average traveltime measurements from sources within evenly spaced cells, thereby eliminating redundant data.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
• DOE Contract Number: NA0003525
• OSTI ID: 2517933
• Report Number(s): SAND--2025-01059
• Country of Publication: United States
• Language: English