AUTHOR=Hughes Joe , Collett Ian , Newheart Anastasia , Kelly Ryan , Wilson Walter Junk , Obenberger Ken , Landry Russell , Colman Jonah , Malins Joe TITLE=N-dimensional Lomb Scargle Periodogram analysis of traveling ionospheric disturbances using ionosonde data JOURNAL=Frontiers in Astronomy and Space Sciences VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2024.1519436 DOI=10.3389/fspas.2024.1519436 ISSN=2296-987X