X. Meng, D. S. Ozturk, O. P. Verkhoglyadova, R. H. Varney, A. S. Reimer, J. L. Semeter, S. R. Kaeppler, and W. Zhan. Energy Deposition by Mesoscale High-Latitude Electric Fields Into the Thermosphere During the 26 October 2019 Geomagnetic Storm. Journal of Geophysical Research: Space Physics, volume 127, issue 12, 2022 . E. Hudson, J. LaBelle, A. Reimer, and H. Akbari. A Statistical Study of Auroral Medium Frequency Bursts and Anomalous Incoherent Scatter Radar Echoes. Radio Science, volume 57, issue 6, 2022 . Y. Wang, D. R. Themens, C. Wang, Y.-Z. Ma, A. Reimer, R. Varney, R. Gilies, Z.-Y. Xing, Q.-H. Zhang, and P. T. Jayachandran. Simultaneous Observations of a Polar Cap Sporadic-E Layer by Twin Incoherent Scatter Radars at Resolute. Journal of Geophysical Research: Space Physics, volume 127, issue 6, 2022 . L. J. Lamarche, R. H. Varney, and A. S. Reimer. Ion Heating in the Polar Cap Under Northwards IMF Bz. Journal of Geophysical Research: Space Physics, volume 126, issue 11, October 2021 . Y.-Z. Ma, Q.-H. Zhang, L. R. Lyons, J. Liu, Z.-Y. Xing, A. Reimer, Y. Nishimura, and D. Hampton. Is Westward Travelling Surge Driven by the Polar Cap Flow Channels? Journal of Geophysical Research: Space Physics, volume 126, issue 8, 2021 . W. Zhan, S. R. Kaeppler, M. F. Larsen, A. Reimer, and R. Varney. An Investigation of Auroral E Region Energy Exchange Using Poker Flat Incoherent Scatter Radar Observations During Fall Equinox Conditions. Journal of Geophysical Research: Space Physics, volume 126, issue 10, 2021 . L. R. Lyons, J. Liu, Y. Nishimura, C.-P. Wang, A. S. Reimer, W. A. Bristow, D. L. Hampton, X. Shi, R. H. Varney, and E. F. Donovan. Radar Observations of Flows Leading to Longitudinal Expansion of Substorm Onset over Alaska. Journal of Geophysical Research: Space Physics, 2021 . J. Ren, S. Zou, J. Lu, N. Giertych, Y. Chen, R. H. Varney, and A. S. Reimer. Statistical Study of Ion Upflow and Downflow Observed by PFISR. Journal of Geophysical Research: Space Physics, volume 125, issue 10, 2020 . M. Fraunberger, K. A. Lynch, R. Clayton, T. M. Roberts, D. Hysell, M. Lessard, A. Reimer, and R. Varney. Auroral ionospheric plasma flow extraction using subsonic retarding potential analyzers. Review of Scientific Instruments, volume 91, issue 9, 2020 . D. S. Ozturk, X. Meng, O. P. Verkhoglyadova, R. H. Varney, A. S. Reimer, and J. L. Semeter. A New Framework to Incorporate High-Latitude Input for Mesoscale Electrodynamics. Journal of Geophysical Research: Space Physics, volume 125, issue 1, 2020 . S. R. Kaeppler, E. Sanchez, R. H. Varney, R. J. Irvin, R. A. Marshall, J. Bortnik, A. S. Reimer, and P. M. Reyes. Chapter 6 - Incoherent scatter radar observations of 10–100keV precipitation: review and outlook. The Dynamic Loss of Earth's Radiation Belts, Elsevier, 2020 . R. Clayton, K. Lynch, M. Zettergren, M. Burleigh, M. Conde, G. Grubbs, D. Hampton, D. Hysell, M. Lessard, R. Michell, A. Reimer, T. M. Roberts, M. Samara, and R. Varney. Two-Dimensional Maps of In Situ Ionospheric Plasma Flow Data Near Auroral Arcs Using Auroral Imagery. Journal of Geophysical Research: Space Physics, volume 124, issue 4, 2019 . Q. Wu, D. Knipp, J. Liu, W. Wang, R. Varney, R. Gillies, P. Erickson, M. Greffen, A. Reimer, I. Häggström, G. Jee, and Y.-S. Kwak. HIWIND Observation of Summer Season Polar Cap Thermospheric Winds. Journal of Geophysical Research: Space Physics, volume 124, issue 11, 2019 . R. G. Gillies, G. W. Perry, A. V. Koustov, R. H. Varney, A. S. Reimer, E. Spanswick, J.-P. St.-Maurice, and E. Donovan. Large-scale comparison of polar cap ionospheric velocities measured by RISR-C, RISR-N, and SuperDARN. Journal of Geophysical Research: Radio Science, American Geophysical Union, volume 53, 2018 . J. Liang, E. Donovan, A. Reimer, D. Hampton, S. Zou, and R. Varney. Ionospheric electron heating associated with pulsating auroras: Joint optical and PFISR observations. Journal of Geophysical Research: Space Physics, American Geophysical Union, volume 123, pages 4430-4456, 2018 . S. Mrak, J. Semeter, M. Hirsch, G. Starr, D. Hampton, R. H. Varney, A. S. Reimer, J. Swoboda, P. J. Erickson, F. Lind, A. J. Coster, and V. Pankratius. Field-aligned GPS scintillation: Multisensor data fusion. Journal of Geophysical Research: Space Physics, American Geophysical Union, volume 123, pages 974-992, 2018 . S. Zou, D. Ozturk, R. Varney, and A. Reimer. Effects of sudden commencement on the ionosphere: PFISR observations and global MHD simulation. Geophys. Res. Lett., issue 44, 2017 .