gemlog: Data Conversion for the Open-Source Gem Infrasound Logger

Abstract

Infrasound (low-frequency pressure waves in air) is widely used as a geophysical method for monitoring powerful, often hazardous processes like volcanic explosions, nuclear tests, bolides, avalanches, mudflows, and earthquakes. Infrasound can also be used to monitor changes in atmospheric wind fields, and balloon-borne infrasound has been proposed as a means of seismic monitoring on planets like Venus where ground-based monitoring is impractical. In infrasound research campaigns, signals are typically recorded to disks by unsupervised, non-telemetered instruments, and recordings must be converted to standard data formats before analysis and distribution. The gemlog package handles data conversion and facilitates data analysis for an open-source instrument, the Gem Infrasound Logger.