Improvement of SuperDARN velocity measurements by estimating the index of refraction in the scattering region using interferometry

- Gillies, R. G., Hussey, G. C., Sofko, G. J., McWilliams, K. A., Fiori, R. A. D., Ponomarenko, P., St.-Maurice, J.-P.

Refractive index effects on the scatter volume location and Doppler velocity estimates of ionospheric HF backscatter echoes

- Ponomarenko, P. V., St-Maurice, J. P., Waters, C. L., Gillies, R. G., Koustov, A. V.