Infrasound Radiation from Impulsive Volcanic Eruptions: Nonlinear Aeroacoustic 2D Simulations

Watson, Leighton M.; Dunham, Eric M.; Mohaddes, Danyal; Labahn, Jeff; Jaravel, Thomas; Ihme, Matthias

doi:10.1002/essoar.10506385.1

Cited by 1 publication

(1 citation statement)

References 91 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There is an opportunity to use simulations of the eruptive jet and atmospheric response (Cerminara et al., 2016; Koyaguchi et al., 2018; Ogden et al., 2008; Watson et al., 2021) as part of the forward modeling workflow to bypass assumptions and biases that may be introduced when using simple source models (e.g., point monopoles or dipoles; point mass, energy, and momentum sources) that are only indirectly linked to eruptive processes. To pursue this approach, we must develop coupled models of conduit flow and the response of a compressible atmosphere.…”

Section: Discussionmentioning

confidence: 99%

Ultra and Very Long Period Seismic Signatures of Unsteady Eruptions Predicted From Conduit Flow Models

2022

Self Cite

View full text Add to dashboard Cite

Seismic monitoring of active volcanoes is a widely used geophysical technique to remotely detect and study eruptions. Seismic radiation from volcanic eruptions occurs across a wide frequency band, with higher frequency radiation arising from turbulence and particle-wall interactions within the conduit (Fee, Haney, et al., 2017), volcano-tectonic (VT) fracture events (Roman & Cashman, 2006), and other impulsive or short-duration processes. Eruptions often also feature very long period (VLP)-in frequency range between 0.01 and 0.50 Hzand ultra long period (ULP)-frequencies below 0.01 Hz-seismic signals that are simpler, usually involving just one or a few cycles of oscillatory motion on broadband seismometers when high-pass filtered above ∼0.01 Hz as is common in most studies. ULP and VLP motions are generally attributed to coherent processes associated with magma movement, pressure and shear traction changes, and inflation or deflation of dikes, sills, and other magma storage structures in the volcanic plumbing system (B. A. Chouet & Matoza, 2013;Kawakatsu & Yamamoto, 2015;McNutt & Roman, 2015). Unraveling seismic waveforms, and relating them to these eruptive processes, thereby provides insight into the fluid dynamics and internal structure of volcanoes.

show abstract

Section: Discussionmentioning

confidence: 99%

Ultra and Very Long Period Seismic Signatures of Unsteady Eruptions Predicted From Conduit Flow Models

2022

Self Cite

View full text Add to dashboard Cite

show abstract

Infrasound Radiation from Impulsive Volcanic Eruptions: Nonlinear Aeroacoustic 2D Simulations

Abstract: This a preprint and has not been peer reviewed. Data may be preliminary.

Cited by 1 publication

References 91 publications

Ultra and Very Long Period Seismic Signatures of Unsteady Eruptions Predicted From Conduit Flow Models

Ultra and Very Long Period Seismic Signatures of Unsteady Eruptions Predicted From Conduit Flow Models

Contact Info

Product

Resources

About