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Data Processing Methods for 3D Seismic Imaging of Subsurface Volcanoes: Applications to the Tarim Flood Basalt
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Modeling Volcanic Eruption Parameters by Near-Source Internal Gravity Waves.

M Ripepe1, G Barfucci1, S De Angelis2

  • 1Dipartimento Scienze della Terra, Università di Firenze, via LaPira, 4, 50121 Firenze, Italy.

Scientific Reports
|November 11, 2016
PubMed
Summary
This summary is machine-generated.

Volcanic eruptions generate atmospheric gravity waves. These waves, recorded by pressure sensors, can determine eruption duration and total ash mass, improving hazard assessments.

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Area of Science:

  • Geophysics
  • Atmospheric Science
  • Volcanology

Background:

  • Volcanic eruptions release ash plumes posing risks to health and aviation.
  • Accurate atmospheric models require eruption duration and total mass data.
  • Eruptions perturb atmospheric equilibrium, generating gravity waves.

Purpose of the Study:

  • To demonstrate that volcanic eruption-induced gravity waves can be used to derive eruption source parameters.
  • To provide a method for constraining ash dispersal models.

Main Methods:

  • Modeling atmospheric gravity oscillations as a compact source representing erupted mass.
  • Analyzing pressure sensor data to detect and interpret gravity waves.

Main Results:

  • Gravity waves induced by volcanic eruptions can be effectively modeled.
  • The rate of erupted volcanic mass can be represented by a compact source.
  • Feasibility of deriving eruption duration and total erupted mass from gravity waves.

Conclusions:

  • Gravity wave analysis offers a novel method for quantifying volcanic eruption source parameters.
  • This technique enhances the accuracy of ash dispersal and hazard assessment models.