A5026388141- Earthquake Detection and Analysis
- Seismic Waves and Analysis
- Lightning and Electromagnetic Phenomena
- Seismology and Earthquake Studies
- Fire effects on ecosystems
- Meteorological Phenomena and Simulations
- Geological and Geophysical Studies
- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Electrostatic Discharge in Electronics
- Archaeology and Historical Studies
- Radioactive contamination and transfer
- Data Visualization and Analytics
- Atmospheric aerosols and clouds
- Gender Roles and Identity Studies
- Food Safety and Hygiene
- Landslides and related hazards
- Electrokinetic Soil Remediation Techniques
- Sustainability and Ecological Systems Analysis
- Fire Detection and Safety Systems
- Geophysical and Geoelectrical Methods
- Geological formations and processes
- Cryospheric studies and observations
- Plant Water Relations and Carbon Dynamics
- Reservoir Engineering and Simulation Methods
Alaska Volcano Observatory
2020-2022
United States Geological Survey
2020-2022
University of South Florida
2014-2021
Abstract Volcanic lightning studies have revealed that there is a relatively long‐lasting source of very high frequency radiation associated with the onset explosive volcanic eruptions distinct from produced by lightning. This signal referred to as “continual radio (CRF)” due its nature. The discharge mechanism producing this was previously hypothesized be caused numerous, small (10–100 m) leader‐forming discharges near vent volcano. To test hypothesis, multiparametric data set electrical...
Abstract The origin of electrical activity accompanying volcanic ash plumes is an area heightened interest in volcanology. However, it unclear how intense eruption needs to be produce lightning flashes as opposed “vent discharges,” which represent the smallest scale activity. This study targets 97 carefully monitored <3 km high from Sakurajima volcano Japan, June 1 7, 2015. We use multiparametric measurements sensors including a nine‐station mapping array and infrared camera characterize...
Abstract 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 plumes become electrified on different spatial and temporal scales. We deconstructed phreatomagmatic eruption Taal volcano (Philippines) 12 January 2020 investigate origin its powerful thunderstorm. Satellite analysis indicated that water-rich plume rose &gt;10 km high before creating detected by...
Sakurajima volcano in Japan is known for frequent eruptions containing prolific volcanic lightning. Previous studies from at Redoubt have shown preliminary correlations between seismic, infrasound, and radio frequency signals. This study uses field data collected 28 May–7 June 2015 multivariable statistical modeling to quantify these relationships. We build regression equations examine each of the following parameters electrical activity: (1) presence activity, (2) signal called continual...