HF Doppler Investigation of the Ionosphere during the 2024 Total Solar Eclipse

Due to the widespread effects of its variability, study of the Ionosphere, the critical boundary between Earth's atmosphere and space, is of interest to not just to scientists, but also to Ham Radio Operators. The Ham Science Citizen Investigation (HamSCI) combines the efforts of both groups to study the region through crowd-sourced observations, such as the 2024 Solar Eclipse QSO party. An eclipse's resulting change in photoionization affects a transmission's point of reflection, which appears as a Doppler shift in the received spectra. High Frequency (HF) Doppler measurements are an effective tool for studying ionospheric condition as they reveal atmospheric changes, and with a better understanding of how an eclipse effects ionospheric conditions, we will better understand ionospheric variability.