Using Infrasonic Shock Waves from Meteors as Detected by Seismographs to Estimate Fireball Trajectories

Supervisor: Dr. Peter Brown

Project Description (Abstract):

This project involves examination of infrasonic (low frequency) airwave signals recorded on seismographs produced by large meteoroids penetrating deeply into Earth’s atmosphere. The goal of the project is to use the arrival times of the supersonic shock wave from the meteoroid generated during its atmospheric flight to reconstruct the path of the fireball through the atmosphere.

The student will perform a literature search for fireballs which may have produced shock waves detectable by seismic stations with emphasis on meteorite producing fireballs. The student will then gather seismic data associated with potential fireballs from online sources and will learn how to interpret and perform basic signal processing of seismic waveforms using PyThon. A PyThon package for trajectory inversion from seismic arrival times will then be used to estimate fireball trajectories.

Published on  and maintained in Cascade CMS.