Construction of three-dimensional weather radar data from volcanic eruption clouds

Area of Science:

• Geosciences
• Volcanology
• Meteorology

Background:

• The Analysis Tools of Three-Dimensional Weather Radar Data (ANT3D) was initially developed for meteorological applications.
• ANT3D was significantly revised by Kagoshima University in 2013 for volcanic eruption cloud analysis.

Purpose of the Study:

• To adapt and enhance ANT3D for processing three-dimensional (3D) volcanic cloud radar data.
• To improve temporal and spatial interpolation methods for radar data.
• To refine the estimation of advection vectors crucial for temporal interpolation.

Main Methods:

• Procedures for constructing 3D volcanic cloud weather radar datasets are outlined.
• A novel algorithm employing temporal and elevation angle interpolation was utilized.
• High temporal and spatial resolution 3D Constant Altitude Plan Position Indicator (3D CAPPI) data were generated.

Main Results:

• The revised ANT3D facilitates detailed analysis of volcanic eruption clouds.
• Improved interpolation and advection vector estimation enhance data accuracy.
• The study provides practical tools for researchers in volcanology and atmospheric science.

Conclusions:

• The enhanced ANT3D software is effective for analyzing volcanic eruption cloud dynamics.
• The developed methods enable high-resolution 3D radar data construction.
• Provided software (ANT3D_GUI and CAPPI viewer) supports further research.