Stephen Arrowsmith


Associate Professor
Hamilton Chair in Earth Sciences


Phone: 214-768-2623

Educational Background

Ph.D. University of Leeds


* Seismology and infrasound for national security

* Source models

* Wave propagation

* Inverse theory

* Digital Signal Processing

Courses Taught

GEOL 7355 Seminar in Geophysics: Big data in seismology

Research Statement

Stephen Arrowsmith's research centers on addressing practical and fundamental problems in seismology and infrasound using advanced signal processing algorithms and numerical modeling. He has worked extensively on research problems in infrasound and seismology for various national security applications (these include nuclear explosion monitoring, nuclear forensics, and other defense applications) at the national laboratories. His research focuses on developing data processing and modeling algorithms that can be implemented to address practical questions (e.g., when/where/what was an event?), as well as more fundamental questions (e.g., how do earthquakes generate infrasound?). For addressing practical problems, the emphasis of Stephens research has been to reconcile theory and practice for all aspects of infrasound monitoring (i.e., from source to receiver) by developing algorithms that incorporate state-of-the-art theory, or learn from data where theory is lacking, while also including a sufficient treatment of uncertainty to make them useful as practical tools. Stephen has led several initiatives to develop new applications for infrasound, such as directly measuring atmospheric dynamics at high altitude. In seismology, he has worked on the development of full-waveform techniques for detecting and locating events, on the development of seismic discriminants for identifying quarry blasts, and on the application of seismic tomography to image the upper mantle.


Marcillo, O., Arrowsmith, S.J., Charbit, M., and Carmichael, J. 2018, Infrasound Signal Detection: Re-examining the Component Parts that Makeup Detection Algorithms, in Infrasound Monitoring for Atmospheric Studies, Ed. Le Pichon, A., Blanc, E., and Hauchecorne, A., Springer, pp. 249-271

Bowman, D., Lees, J., Cutts, J., Komjathy, A., Young, E., Seiffert, K., Boslough, M., and Arrowsmith, S.J., 2018, Geoacoustic Observations on Drifting Balloon-Borne Sensors, in Infrasound Monitoring for Atmospheric Studies, Ed. Le Pichon, A., Blanc, E., and Hauchecorne, A., Springer, pp. 125-171

Arrowsmith, S.J., Young, C., and Pankow, K., 2018, Implementation of the Waveform Correlation Event Detection System (WCEDS) Method for Regional Seismic Event Detection in Utah, Bull. Seism. Soc. Am., doi:10.1785/0120180097

Arrowsmith, S.J., 2018, False alarms and the IMS infrasound network: understanding the factors influencing the creation of false events, Geophys. J. Int., 215, 1322-1337, doi:10.1093/gji/ggy350

Young, E., Bowman, D. C., Lees, J. M., Klein, V., Arrowsmith, S. J., and Ballard, C., 2018, Explosion-Generated Infrasound Recorded on Ground and Airborne Microbarometers at Regional Distances, Seism. Res. Lett., 89, 1497-1506, doi:10.1785/0220180038.

Arrowsmith, S. J., and Bowman, D., 2017, Explosion yield estimation from pressure wave template matching, J. Acous. Soc. Am., 141, doi:10.1121/1.4984121.

Pinsky, V., Blom, P., Polozov, A., Marcillo, O., Arrowsmith, S., and Hofstetter, A., 2017, Towards an accurate real-time locator of infrasonic sources, J. Seismol., doi:10.1007/s10950-017-9670-4.

Maceira, M., Blom, P., MacCarthy, J. K., Marcillo, O., Euler, G., Begnaud, M., Ford, S., Pasyanos, M. E., Orris, G., Foxe, M., Arrowsmith, S. J., B. John Merchant, and Slinkard, M. 2017, Trends in Nuclear Explosion Monitoring Research & Development: A Physics Perspective, LA-UR-17-21274, doi:10.2172/1355758.

Park, J., Hayward, C. T., Zeiler, C. P., Arrowsmith, S. J., and Stump, B. W., 2017, Assessment of Infrasound Detectors Based on Analyst Review, Environmental Effects, and Detection Characteristics, Bull. Seism. Soc. Am., 107, doi: 10.1785/0120160125.

Arrowsmith, S. J., Young, C., Ballard, S., Slinkard, M., and Pankow, K., 2016, Pickless Event Detection and Location: The Waveform Correlation Event-Detection System (WCEDS) Revisited, Bull. Seism. Soc. Am., 106, 2037-2044.

Blom, P., Marcillo, O., and Arrowsmith, S. J., 2016, Analysis and modeling of infrasound from a four-stage rocket launch, J. Acoust. Soc. Am., 139, 3134 - 3138.

Park, J., Stump, B. W., Hayward, C., Arrowsmith, S. J., Che, I. -Y., and Drob, D., 2016, Detection of regional infrasound signals using array data: Testing, tuning, and physical interpretation, J. Acoust. Soc. Am., 140, 239-259.

Arrowsmith, M. D., Arrowsmith, S. J., and Marcillo, O., 2016, Using Sounds from the Ocean to Measure Winds in the Stratosphere, EOS Trans., 15 Feb 2016, 20-24.

Carmichael, J. D., Nemzek, R., Arrowsmith, S. J., and Sentz, K., 2016, Fusing geophysical signatures of locally recorded surface explosions to improve blast detection, Geophys. J. Int., 204, 1838-1842.

Blom, P. S., Marcillo, O., and Arrowsmith, S. J., 2015, Improved Bayesian Infrasonic Source Localization for regional infrasound, Geophys. J. Int., 203, 1682-1693.

Jones, K. R., Whitaker, R. W. and Arrowsmith, S. J., 2015, Modeling infrasound signal generation from two underground explosions at the Source Physics Experiment using the Rayleigh integral, Geophys. J. Int., 200, 779-790.

Arrowsmith, S. J., Euler, G., Marcillo, O., Blom, P., Whitaker, R., and Randall, G., 2015, Processing International Monitoring System infrasound data using probabilistic algorithms, Geophys. J. Int., 200, 1411-1422, doi:10.1093/gji/ggu486.

Marcillo, O., Arrowsmith, S. J., Blom, P. and Jones, K., 2015, On infrasound generated by wind farms and its propagation in low-altitude tropospheric waveguides, J. Geophys. Res., doi:10.1002/2014JD022821.

Morton, E. A., and Arrowsmith, S. J., 2014, The Development of Global Probabilistic Propagation Lookup-Tables, Seism. Res. Lett., 85, doi:10.1785/0220140124.

Marcillo, O., Arrowsmith, S. J., Whitaker, R., Morton, E., and Phillips, W.-S., 2014, Extracting changes in air temperature using acoustic coda phase delays, J. Acoust. Soc. Am., 136, doi:10.1121/1.4896404.

Park, J., Arrowsmith, S. J., Hayward, C., Stump, B. W. and Blom, P., 2014, Automatic infrasound detection and location of sources in the Western United States, J. Geophys. Res., doi:10.1002/2013JD021084.

Nippress, A., Green, D. N., Marcillo, O. and Arrowsmith, S. J., 2014, Generating regional infrasound celerity-range models using ground-truth information and the implications for event location, Geophys. J. Int., 197, 1154-1165, doi:10.1093/gji/ggu049.

Marcillo, O.E., Arrowsmith, S. J., Whitaker, R., Anderson, D., Nippress, A., Green, D.N. and Drob, D., 2014, Using Physics-based Priors in a Bayesian Algorithm to Enhance Infrasound Source Location, Geophys. J. Int., 196, 375-385, doi:10.1093/gji/ggt353.

Arrowsmith, S. J., Norris, D., Whitaker, R. and Anderson, D., 2014, Sources of Error Model and Progress Metrics for Acoustic/Infrasonic Analysis: Location Estimation, Pure and Applied Geophysics, 171, 587-597, doi:10.1007/s00024-012-0576-3.

Arrowsmith, S.J. and Taylor, S.R., 2013, Multivariate acoustic detection of small explosions using Fisher's combined probability test, J. Acoust. Soc. Am., doi:10.1121/1.4789871.

Taylor, S.R., Arrowsmith, S.J. and Anderson, D.N. 2013, Development of a matched filter detector for acoustic signals at local distances from small explosions, J. Acoust. Soc. Am., doi:10.1121/1.4809779.

Arrowsmith, S.J., Marcillo, O.E. and Drob, D.P., 2013, A Framework for Estimating Stratospheric Wind Speeds from Unknown Sources and application to the December 25, 2010 bolide, Geophys. J. Int., doi:10.1093/gji/ggt228.

Johnson, J.B., Anderson, J. F., Marcillo, O.E. and Arrowsmith, S.J., 2012, Probing local wind and temperature structure using infrasound from Volcan Villarrica (Chile), J. Geophys. Res., 117, doi: 10.1029/2012JD017694.

Arrowsmith, S.J., Whitaker, R., MacCarthy, J. and Anderson, D., 2012. A Sources-of-Error Model for Acoustic/Infrasonic Yield Estimation for Above-ground Single-point Explosions, InfraMatics, 1, 1-9.

Arrowsmith, S.J., Burlacu, R., Pankow, K., Stump, B., Stead, R., Whitaker, R. and Hayward, C., 2012. A seismoacoustic study of the 2011 January 3 Circleville earthquake, Geophys. J. Int., doi:10.1111/j.1365-246X.2012.05420.x

Arrowsmith, S.J., Johnson, J. B., Drob, D. P., and Hedlin, M. A. H., 2010. The Seismo-Acoustic Wavefield: A new paradigm in studying geophysical phenomena, Rev. Geophys., 48, doi:10.1029/2010RG000335.

Taylor, S.R., Arrowsmith, S.J., and Anderson, D,N., 2010. Detection of Short Time Transients From Spectrograms Using Scan Statistics, Bull. Seism. Soc. Am., 100, doi:10.1785/012010017.

Anderson, D. N., Randall, G. E., Whitaker, R. W., Arrowsmith, S. J., Arrowsmith, M. D., Fagan, D. K., Taylor, S. R., Selby, N. D., Schult, F. R., Kraft, G. D., and Walter, W. R., 2010. Seismic event identification, WIREs Comp. Stat., 2, 414-432, doi:10.1002/wics.105

Modrak. R, T., Arrowsmith, S.J., and Anderson, D,N., 2010. A Bayesian framework for infrasound location, Geophys. J. Int., doi:10.1111/j.1365-246X.2010.04499.x

Arrowsmith, S.J., Burlacu, R., Whitaker, R., and Randall, G., 2009. A repeating secondary source of infrasound from the Wells, Nevada, earthquake sequence Geophys. Res. Lett., 36, L11817, doi:10.1029/2009GL038363

Arrowsmith, S.J., Whitaker, R., Katz, C., and Hayward, C., 2009. The F-detector Revisited: An Improved Strategy for Signal Detection at Seismic and Infrasound Arrays Bull. Seism. Soc. Am., 99, p. 449-453.

Arrowsmith, S.J., Whitaker, R., Taylor, S., Burlacu, R., Stump, B., Hedlin, M., Randall, G., Hayward, C., ReVelle, D., 2008. Regional Monitoring of Infrasound Events using Multiple Arrays: Application to Utah and Washington State Geophys. J. Int., 175, p.291-300.

Brown, P., ReVelle, D.O., Silber, E.A., Edwards, W.N., Arrowsmith, S.J., Jackson, L.E., Tancredi, G. and Eaton, D., 2008. Analysis of a crater-forming meteorite impact in Peru J. Geophys. Res., 113, doi:10.1029/2008JE003105.

Arrowsmith, S.J., Hedlin, M.A.H., Stump , B.W., and Arrowsmith, M.D., 2008. Infrasonic Signals from Large Mining Explosions Bull. Seism. Soc. Am., 98, p. 768-777.

Arrowsmith, S.J., ReVelle, D., Edwards, W. and Brown, P., 2007. Global Detection of Infrasonic Signals from Three Large Bolides Earth, Moon and Planets, doi:10.1007/s11038-007-9205-z.

Arrowsmith, S.J., Hedlin, M.A.H., Arrowsmith, M.D. and Stump, B.W., 2007. Identification of delay-fired mining events using seismic arrays: Application to the PDAR array in Wyoming, USA, Bull. Seism. Soc. Am., 97, p.989-1001.

Arrowsmith, S.J., Drob,D., Hedlin, M.A.H. and Edwards, W., 2007. A joint seismic and acoustic study of the Washington State bolide, J. Geophys. Res., 112, doi:10.1029/2006JD008001.

Arrowsmith, S.J., Arrowsmith, M.D., Hedlin, M.A.H. and Stump, B., 2006. Discrimination of delay-fired mining events in Wyoming using an automatic time-frequency discriminant, Bull. Seism. Soc. Am., 96, p.2368-2382.

Arrowsmith, S.J., and Eisner, L., 2005. A technique for identifying Microseismic multiplets and application to the Valhall Field, North Sea, Geophysics, v. 71, n. 2, p. v31-v40.

Arrowsmith,S.J., and Hedlin, M.A.H., 2005. Observations of infrasound from surf in Southern California, Geophysical Research Letters, v. 32,No. 9, L09810,doi:10.1029/2005GL022761

Arrowsmith, S.J., Kendall, J-M., White, N., VanDecar, J.C., and Booth, D.C., 2005. Seismic imaging of a hot upwelling beneath the British Isles, Geology, v. 33, p. 345-348.