Frissell, N. A., Sanchez, D. F., Perry, G. W., Kaeppler, S. R., Joshi, D. R., Engelke, W. D., … Baker, J. B. H. (2021). Sources of Large Scale Traveling Ionospheric Disturbances Observed using HamSCI Amateur Radio, SuperDARN, and GNSS TEC. Virtual: ARRL-TAPR. Retrieved from https://youtu.be/MHkz7jNynOg?t=22608 (Original work published 2021)