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Volcanic electrification: recent advances and future perspectives.

Corrado Cimarelli1, Sonja Behnke2, Kimberly Genareau3

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Volcanic lightning is common in eruption plumes and provides key insights into explosive volcanic processes. Studying plume electrification advances our understanding of eruptions and improves volcano monitoring.

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Area of Science:

  • Volcanology
  • Atmospheric Science
  • Atmospheric Electricity
  • Engineering

Background:

  • Electrification of volcanic plumes has been observed since ancient times.
  • Recent research highlights volcanic lightning as a crucial indicator of explosive eruption dynamics.
  • Volcanic lightning is now recognized as a ubiquitous phenomenon in volcanic plumes.

Purpose of the Study:

  • To summarize recent advancements in volcanic lightning research.
  • To explore the relationship between plume electrification and eruption processes.
  • To outline future directions for interdisciplinary research in volcanic electricity.

Main Methods:

  • Analysis of recent volcanic eruptions and observations.
  • Laboratory experiments, including shock-tube and current impulse studies.
  • Numerical modeling of volcanic plume electrification.
  • Interdisciplinary collaboration between volcanology, atmospheric science, and engineering.

Main Results:

  • Charge generation and electrical activity are intrinsically linked to the physical, chemical, and dynamic aspects of volcanic eruptions.
  • Technological progress has enabled a deeper understanding of the mechanisms behind volcanic electrification.
  • Volcanic lightning provides otherwise inaccessible parameters of explosive eruptions.

Conclusions:

  • Understanding volcanic plume electrification is key to advancing fundamental knowledge of eruptive processes.
  • Continued research in volcanic lightning is essential for improving volcano monitoring and hazard assessment.
  • An interdisciplinary approach is vital for future progress in this field.