High and Low Noise Models for Geophone Deployments: Toward Global Denoising Strategies and Enhanced Global Monitoring Capabilities
Description:
The use of geophones for seismic data acquisition has become more popular in recent research due to their low cost and the ease of conducting large temporary deployments. The current noise models available are mainly developed from global broadband instruments and do not represent the geophone noise levels that are typically encountered for shallow emplacement, given that broadbands are usually well buried or vaulted. The traditional noise models cover the lower frequencies and are outside of the typical range of geophones (0.001–10 Hz), with most of the signals of interest in geophones ranging up to 100 Hz or more. We are developing noise models that will represent geophone deployments across the world and within various geologies and environmental conditions. The comparison of these models will help us establish a quality control for nodal deployments by ensuring that the instruments are providing the data quality needed and meets the minimum threshold for detection. Using the nodal deployment data we have from Puerto Rico, Nevada, and Florida, in addition to other deployments identified on the EarthScope DMC and International Federation of Digital Seismograph Networks, we will contrast the marine and inland environments by analyzing the geological response for noise level variations, revealing possible common patterns in the seismic data, and isolate the High and Low Noise Models that are more representative of these types of deployments. This process will help to understand the noise level variations along diverse geologies and will become an input for seismic data quality enhancement and accurate detection and differentiation of signals of interest. This work was done by Mission Support and Test Services, LLC, under Contract No. DE‑NA0003624 with the U.S. Department of Energy, the National Nuclear Security Administration’s Office of Defense Nuclear Nonproliferation. DOE/NV/03624--2086.
Session: Geophysics in a Changing World: Monitoring Applications from Seismology and Beyond [Poster]
Type: Poster
Date: 4/15/2025
Presentation Time: 08:00 AM (local time)
Presenting Author: Cherilyn
Student Presenter: Yes
Invited Presentation:
Poster Number: 51
Authors
Cherilyn Toro-Acosta Presenting Author Corresponding Author cherilyn.toro@upr.edu University of Puerto Rico, Mayagüez |
Jacob Gochenour gochenja@nv.doe.gov Nevada National Security Site |
Cleat Zeiler ZeilerCP@nv.doe.gov Nevada National Security Site |
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High and Low Noise Models for Geophone Deployments: Toward Global Denoising Strategies and Enhanced Global Monitoring Capabilities
Category
Geophysics in a Changing World: Monitoring Applications from Seismology and Beyond