@misc{10481/57913,
year = {2019},
url = {http://hdl.handle.net/10481/57913},
abstract = {Rapid assessment of the volume and the rate at which gas and pyroclasts are injected into the
atmosphere during volcanic explosions is key to effective eruption hazard mitigation. Here, we use data
from a dense infrasound network deployed in 2017 on Mt. Etna, Italy, to estimate eruptive volume flow
rates (VFRs) during small gas-and-ash explosions.We use a finite-difference time-domain approximation
to compute the acoustic Green's functions and perform a full waveform inversion for a multipole source,
combining monopole and horizontal dipole terms. The inversion produces realistic estimates of VFR, on
the order of 4 × 104 m3/s and well-defined patterns of source directivity. This is the first application of
acoustic waveform inversion at Mt. Etna. Our results demonstrate that acoustic waveform inversion is a
mature and robust tool for assessment of source parameters and holds potential as a tool to provide rapid
estimates of VFR in near real time.},
organization = {This study was supported by NERC
Grant NE/P00105X/1 and by European
Unions Horizon 2020 Research and
Innovation Programme Under the
Marie Sklodowska-Curie Grant
Agreement 798480.},
publisher = {American Geophysical Union},
title = {Volume Flow Rate Estimation for Small Explosions at Mt. Etna, Italy, From Acoustic Waveform Inversion},
doi = {10.1029/2019GL084598},
author = {Díaz Moreno, Alejandro and Zuccarello, Luciano},
}