Nicholas Callahan

Frissell, N. A., Tholley, F., Harvey, L., Phillips, S. R., Bossert, K., Derghazarian, S., … Baker, J. B. H. (2023). Medium Scale Traveling Ionospheric Disturbances and their Connection to the Lower and Middle Atmosphere. Scranton, PA: HamSCI. (Original work published 2023)

Sanchez, D., Frissell, N., West, M. L., Harvey, L., Vadas, S., Becker, E., … Erickson, P. (2025). Climatology of Large-Scale Traveling Ionospheric Disturbances Observed with 14 MHz Amateur Radio Using a Novel Automated Detection Technique. Newark, NJ: HamSCI. (Original work published 2025)

Sanchez, D., West, M. L., Frissell, N., Perry, G., Harve, L., Engelke, B., … Vadas, S. (2026). Multi-Year Climatology of Large-Scale Traveling Ionospheric Disturbances Observed with High Frequency Amateur Radio Receiving Networks Using a Novel Automated Detection Algorithm. Newington, CT: HamSCI. (Original work published 2026)