Congrats to NJIT, Scranton, CWRU and SSI Researchers: Frontiers Paper Published

[Gary Mikitin, AF8A]

The HamSCI publishing train keeps rolling along, with a third paper springing forth from the HamSCI Community in 2026.

Sabastian Fernandes, Center for Solar-Terrestrial Research at NJIT,  his co-authors at NJIT, Scranton, CWRU and SSI recently saw their work "Characterizing ionospheric variability through HF Doppler measurements: a statistical and numerical ray tracing analysis" published  in Frontiers in Astronomy and Space Sciences.

From their abstract:  This study analyzes long-term Doppler residual measurements of a 10 MHz HF link between Fort Collins, CO, and Newark, NJ, to characterize the impact of ionospheric conditions on the link. We report that daytime measurements of Doppler variability exhibit Cauchy statistics, while nighttime measurements show a combination of exponential and log-normal statistics. These patterns correlate with solar activity and solar zenith angle. We also use PHaRLAP numerical ray tracing simulations through the IRI 2020 ionosphere to provide insights into signal ray paths and the altitudes of the ionosphere contributing to the observed Doppler shifts. By examining diurnal variations and statistical properties of Doppler residuals, this study aims to enhance our understanding of ionospheric dynamics and their influence on HF signal characteristics.

(PHaRLAP is a MATLAB-based toolbox created by Australia's Defence Science and Technology Group for studying and modeling HF radio wave propagation through the Earth’s ionosphere.)

[Robert Mattaliano]

Congratulations to all involved!

Bob

N6RFM