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Numerical Simulation of the Atmospheric Signature of Artificial and Natural Seismic Events

Martire, Léo and Brissaud, Quentin and Lai, Voon Hui and Garcia, Raphaël F. and Martin, Roland and Krishnamoorthy, Siddharth and Komjathy, Attila and Cadu, Alexandre and Cutts, James A. and Jackson, Jennifer M. and Mimoun, David and Pauken, Michael T. and Sournac, Anthony (2018) Numerical Simulation of the Atmospheric Signature of Artificial and Natural Seismic Events. Geophysical Research Letters, 45 (21). pp. 12085-12093. ISSN 0094-8276. http://resolver.caltech.edu/CaltechAUTHORS:20181101-154732804

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Abstract

The mechanical coupling between solid planets and their atmospheres enables seismically induced acoustic waves to propagate in the atmosphere. We numerically simulate this coupled system for two application cases: active seismic experiments (ASEs) and passive seismic experiments. A recent ASE (Krishnamoorthy et al., 2018, https://doi.org/10.1002/2018GL077481) observed the infrasonic signals produced by a seismic hammer. To measure the sensitivity of observations to seismic parameters, we attempt to reproduce the results from this experiment at short range by considering a realistic unconsolidated subsurface and an idealized rock‐solid subsurface. At long range, we investigate the influence of the source by using two focal mechanisms. We found surface waves generate an infrasonic plane head wave in the ASE case of the rock‐solid material. For the passive seismic experiments, the amplitude of atmospheric infrasound generated by seismic surface waves is investigated in detail. Despite some limitations, the simulations suggest that balloon measurement of seismically induced infrasound might help to constrain ground properties.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1029/2018gl080485DOIArticle
https://doi.org/10.5281/zenodo.1421100DOISeismometer Data
https://doi.org/10.6084/m9.figshare.6137507DOIBarometer Data
ORCID:
AuthorORCID
Martire, Léo0000-0002-9402-6150
Lai, Voon Hui0000-0002-0738-0187
Garcia, Raphaël F.0000-0003-1460-6663
Krishnamoorthy, Siddharth0000-0002-0379-1616
Komjathy, Attila0000-0002-5975-438X
Cutts, James A.0000-0002-1765-8322
Jackson, Jennifer M.0000-0002-8256-6336
Mimoun, David0000-0002-3427-2974
Pauken, Michael T.0000-0002-3993-675X
Additional Information:© 2018 American Geophysical Union. Received 1 JUN 2018; Accepted 29 OCT 2018; Accepted article online 1 NOV 2018; Published online 13 NOV 2018. The authors thank the CALMIP computing center (Toulouse, France) for computer resources (project p1404). The authors thank both the “Direction Générale de l'Armement” (French DoD) and the “Région Occitanie” for funding the PhD grant of Léo Martire. This study was supported by CNES research projects and the W. M. Keck Institute for Space Studies. Contributions from JPL authors were made possible by research carried out with support from an internal research and technology grant at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Data used to generate results presented here have been uploaded to publicly accessible repositories: https://doi.org/10.5281/zenodo.1421100 for the seismometer data and https://doi.org/10.6084/m9.figshare.6137507 for the barometer data.
Group:Seismological Laboratory, Keck Institute for Space Studies
Funders:
Funding AgencyGrant Number
Direction Générale de l’ArmementUNSPECIFIED
Région OccitanieUNSPECIFIED
Centre National d'Études Spatiales (CNES)UNSPECIFIED
Keck Institute for Space Studies (KISS)UNSPECIFIED
NASA/JPL/CaltechUNSPECIFIED
Subject Keywords:active seismic experiment; passive seismic experiment; infrasound; numerical simulation; ground imaging; seismic event detection
Record Number:CaltechAUTHORS:20181101-154732804
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20181101-154732804
Official Citation:Martire, L., Brissaud, Q., Lai, V. H., Garcia, R. F., Martin, R., Krishnamoorthy, S., et al. (2018). Numerical simulation of the atmospheric signature of artificial and natural seismic events. Geophysical Research Letters, 45, 12,085–12,093. https://doi.org/10.1029/2018GL080485
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:90598
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:01 Nov 2018 23:00
Last Modified:05 Apr 2019 18:38

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