Volcanic electrification: recent advances and future perspectives

C Cimarelli, S Behnke, K Genareau, JM Harper… - Bulletin of …, 2022 - Springer
The electrification of volcanic plumes has been described intermittently since at least the
time of Pliny the Younger and the 79 AD eruption of Vesuvius. Although sometimes …

Responses of the AC/DC Global Electric Circuit to Volcanic Electrical Activity in the Hunga Tonga‐Hunga Ha'apai Eruption on 15 January 2022

J Bór, T Bozóki, G Sátori, E Williams… - Journal of …, 2023 - Wiley Online Library
Responses of the AC and DC global electric circuits (GECs) to the large eruption of the
Hunga Tonga‐Hunga Ha'apai (HT‐HH) volcano on 15 January 2022 are discussed. The AC …

Volcano infrasound: Progress and future directions

LM Watson, AM Iezzi, L Toney, SP Maher, D Fee… - Bulletin of …, 2022 - Springer
Over the past two decades (2000–2020), volcano infrasound (acoustic waves with
frequencies less than 20 Hz propagating in the atmosphere) has evolved from an area of …

Impulsive volcanic plumes generate volcanic lightning and vent discharges: A statistical analysis of Sakurajima volcano in 2015

CM Smith, D Gaudin, AR Van Eaton… - Geophysical …, 2021 - Wiley Online Library
The origin of electrical activity accompanying volcanic ash plumes is an area of heightened
interest in volcanology. However, it is unclear how intense an eruption needs to be to …

Eruption dynamics leading to a volcanic thunderstorm—The January 2020 eruption of Taal volcano, Philippines

AR Van Eaton, CM Smith, M Pavolonis… - Geology, 2022 - pubs.geoscienceworld.org
Advances in global lightning detection have provided novel ways to characterize explosive
volcanism. However, researchers are still at the early stages of understanding how volcanic …

Charge injection into the atmosphere by explosive volcanic eruptions through triboelectrification and fragmentation charging

JM Harper, C Cimarelli, V Cigala, U Kueppers… - Earth and Planetary …, 2021 - Elsevier
Volcanic eruptions are associated with a wide range of electrostatic effects. Increasing
evidence suggests that high-altitude discharges (lightning) in maturing plumes are driven by …

Analyzing continuous infrasound from Stromboli volcano, Italy using unsupervised machine learning

AJC Witsil, JB Johnson - Computers & Geosciences, 2020 - Elsevier
Infrasound data are used by scientists and monitoring observatories to track shifts in eruptive
behavior, identify signs of unrest, and ultimately help forecast major eruptions. However …

Radio frequency characteristics of volcanic lightning and vent discharges

SA Behnke, H Edens, S Senay… - Journal of Geophysical …, 2021 - Wiley Online Library
In this study, we analyze the pulse width and spectral content of vent discharges and
volcanic lightning flashes. We made measurements of electrical activity with a broadband …

The Effect of Conduit Walls Roughness on Volcanic Jets and Their Seismo‐Acoustic Radiation: An Experimental Investigation

L Spina, J Taddeucci, F Pennacchia… - Geophysical …, 2023 - Wiley Online Library
To explore the effect of conduit roughness on volcanic jet dynamics and on the related
seismo‐acoustic radiation we performed a series of shock‐tube experiments using pipes …

Observations show charge density of volcanic plumes is higher than thunderstorms

S Haley, S Behnke, H Edens… - Journal of Geophysical …, 2021 - Wiley Online Library
We analyze slow electric field change and lightning mapping measurements to provide
insight into the characteristics of volcanic lightning and the associated implications on …