pyEM31

field-measurements
nmea0813
etl
Converting raw data from Geonics EM31 instruments
Authors

Josh King

Mike Brady

Published

January 28, 2026

Repository

Our group at ECCC uses the Geonics Ltd. M31-MK2 and EM31-SH instruments to estimate snow properties. Josh King originally created a Python script to convert the raw data files into human-readable text, and I continued the effort in order to share his work with the rest of the community.

Supplementary Figure 1 from Haas et. al (2017) Original caption: Photo of the EM31SH ice thickness sounder and Magnaprobe snow thickness sensor used in this study. The EM instrument is strapped onto a toboggan dragged by one person and operated in horizontal dipole mode. The Magnaprobe is carried by another person. Note rather level ice surface morphology (Site 5; cf. Figure 2) and Twin Otter aircraft in the background (small black spot).

Supplementary Figure 1 from Haas et. al (2017) Original caption: Photo of the EM31SH ice thickness sounder and Magnaprobe snow thickness sensor used in this study. The EM instrument is strapped onto a toboggan dragged by one person and operated in horizontal dipole mode. The Magnaprobe is carried by another person. Note rather level ice surface morphology (Site 5; cf. Figure 2) and Twin Otter aircraft in the background (small black spot).