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2018


Themens, D. R., P. Jayachandran, and R. H. Varney
Examining the use of the NeQuick bottomside and topside parameterizations at high latitudes
Advances in Space Research, 2018
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Themens, D. R., P. T. Jayachandran, D. Bilitza, P. J. Erickson, I. Haggstrom, M. V. Lyashenko, B. Reid, R. H. Varney, and L. Pustovalova
Topside electron density representations for middle and high latitudes: A topside parameterization for E-CHAIM based on the NeQuick
Journal of Geophysical Research: Space Physics, 2018
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DOI, BibTex

2017


Akbari, H., L. V. Goodwin, J. Swoboda, J.-P. St.-Maurice, and J. L. Semeter
Extreme plasma convection and frictional heating of the ionosphere: ISR observations
J. Geophys. Res. Space Physics, 2017
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Lamarche and Leslie
Plasma Irregularity Production in the Polar Cap F-Region Ionosphere
Ph.D. Thesis, 2017
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Lamarche, L. J., and R. A. Makarevich
Radar observations of density gradients, electric fields, and plasma irregularities near polar cap patches in the context of the gradient-drift instability
J. Geophys. Res. Space Physics, 2017
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Lin, D., B. Zhang, W. A. Scales, M. Wiltberger, C. R. Clauer, and Z. Xu
The role of solar wind density in cross polar cap potential saturation under northward interplanetary magnetic field
Geophysical Research Letters, 2017
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Ruohoniemi, M. M. J., J. Baker, C. Clauer, M. Nicolls, and M. Hairston
RISR-N observations of the IMF By influence on reverse convection during extreme northward IMF
J. Geophys. Res. Space Physics, 2017
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DOI, BibTex
Swoboda and J. Philip
Space-time sampling strategies for electronically steerable incoherent scatter radar
PhD Thesis, 2017
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URL, BibTex
Wu, Q., G. Jee, C. Lee, J.-H. Kim, Y. H. Kim, W. Ward, and R. H. Varney
First simultaneous multistation observations of the polar cap thermospheric winds
J. Geophys. Res. Space Physics, 2017
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URL, DOI, BibTex

2016


C. R. Clauer, Z. Xu, M. Maimaiti, J. M. Ruohoneimi, W. Scales, M. D. Hartinger, M. J. Nicolls, S. Kaeppler, F. D. Wilder, and R. E. Lopez
Investigation of a rare event where the polar ionospheric reverse convection potential does not saturate during a period of extreme northward IMF solar wind driving
J. Geophys. Res. Space Physics, 2016
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Gillies, R. G., v. Eyken, A., Spanswick, E., Nicolls, M., Kelly, J., Greffen, M., Knudsen, D., Connors, M., Schutzer, M., Valentic, T., Malone, M., Buonocore, J., St.-Maurice, J.-P., Donovan, and E.
First observations from the RISR-C incoherent scatter radar
Radio Science, 2016
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Koustov, A. V., D. B. Lavoie, and R. H. Varney
On the consistency of the SuperDARN radar velocity and E×B plasma drift
Radio Science, 2016
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Shen, Y., D. J. Knudsen, J. K. Burchill, A. Howarth, A. Yau, R. J. Redmon, D. M. Miles, R. H. Varney, and M. J. Nicolls
Strong ambipolar-driven ion upflow within the cleft ion fountain during low geomagnetic activity
J. Geophys. Res. Space Physics, 2016
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2015


L. J. Lamarche and R. A. Makarevich
Solar control of F region radar backscatter: Further insights from observations in the southern polar cap
J. Geophys. Res., 2015
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L. R. Lyons, Y. Nishimura, B. Gallardo-Lacourt, Y. Zou, E. F. Donovan, S. Mende, V. Angelopoulos, J. M. Ruohoniemi, K. A. McWilliams, D. L. Hampton, and M. J. Nicolls
Dynamics Related to Plasmasheet Flow Bursts as Revealed from the Aurora
Auroral Dynamics and Space Weather (eds. Y. Zhang and L. J. Paxton), John Wiley & Sons, 2015
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R. A. Makarevich, L. J. Lamarche, and M. J. Nicolls
Resolute Bay Incoherent Scatter Radar observations of plasma structures in the vicinity of polar holes
J. Geophys. Res., 2015
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M. J. Nicolls
Space Debris Measurements using the Advanced Modular Incoherent Scatter Radar
AMOS, 2015
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G. W. Perry, H. Dahlgren, M. J. Nicolls, M. Zettergren, J.-P. St.-Maurice, J. L. Semeter, T. Sundberg, K. Hosokawa, K. Shiokawa, and S. Chen
Spatiotemporally resolved electrodynamic properties of a Sun-aligned arc over Resolute Bay
J. Geophys. Res., 2015
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G. Perry
Large scale plasma density perturbations in the polar F-region ionosphere
Ph.D. Thesis, University of Saskatchewan, 2015
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BibTex
D. R. Themens, P. T. Jayachandran, and R. B. Langley
The nature of GPS differential receiver bias variability: An examination in the polar cap region
J. Geophys. Res., 2015
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2014


H. Dahlgren, G. Perry, J.-P. S. Maurice, T. Sundberg, K. Hosokawa, J. L. Semeter, M. J. Nicolls, and K. Shiokawa
3D imaging reveals electrod ynamics of polar cap aurora
Astronomy & Geophysics, 2014
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K. Hosokawa, S. Taguchi, K. Shiokawa, Y. Otsuka, Y. Ogawa, and M. Nicolls
Global imaging of polar cap patches with dual airglow imagers
Geophys. Res. Lett., 2014
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M. J. Nicolls, R. Cosgrove, and H. Bahcivan
Estimating the vector electric field using monostatic, multibeam incoherent scatter radar measurements
Radio Sci., 2014
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D. Themens, P. Jayachandran, M. J. Nicolls, and J. W. MacDougall
A Top to Bottom Evaluation of IRI-2007 within the Polar Cap
J. Geophys. Res., 2014
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R. H. Varney, S. C. Solomon, and M. J. Nicolls
Heating of the sunlit polar cap ionosphere by reflected photoelectrons
J. Geophys. Res., 2014
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2013


H. Bahcivan, M. J. Nicolls, and G. Perry
Comparison of SuperDARN irregularity drift measurements and F-region ion velocities from the Resolute Bay ISR
J. Atmos. Solar-Terr. Phys., 2013
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H. Bahcivan, S. Chen, and R. Cosgrove
Comparison of ionospheric drift and magnetic deflections on the ground
J. Atmos. Solar-Terr. Phys., 2013
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M. Samara and R. Michell
Optical and radar observations of small-scale polar cap auroral structures
J. Atmos. Solar-Terr. Phys., 2013
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2012


H. Bahcivan and J. W. Cutler
Radio Aurora Explorer: Mission science and radar system
Radio Sci., 2012
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H. Dahlgren, G. W. Perry, J. L. Semeter, J.-P. St-Maurice, K. Hosokawa, M. J. Nicolls, M. Greffen, K. Shiokawa, and C. Heinselman
Space-time variability of polar cap patches: Direct evidence for internal plasma structuring
J. Geophys. Res., 2012
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H. Dahlgren, J. L. Semeter, K. Hosokawa, M. J. Nicolls, T. W. Butler, M. G. Johnsen, K. Shiokawa, and C. Heinselman
Direct three-dimensional imaging of polar ionospheric structures with the Resolute Bay Incoherent Scatter Radar
Geophys. Res. Lett., 2012
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D. R. Themens, P. T. Jayachandran, R. B. Langley, J. W. Macdougall, and M. J. Nicolls
Determining receiver biases in GPS-derived total electron content in the auroral oval and polar cap region using ionosonde measurements
GPS Solutions, 2012
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2011


L. R. Lyons, Y. Nishimura, H.-J. Kim, E. Donovan, V. Angelopoulos, G. Sofko, M. Nicolls, C. Heinselman, J. M. Ruohoniemi, and N. Nishitani
Possible connection of polar cap flows to pre- and post-substorm onset PBIs and streamers
J. Geophys. Res., 2011
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2010


H. Bahcivan, R. Tsunoda, M. J. Nicolls, and C. J. Heinselman
Initial ionospheric observations made by the new Resolute incoherent scatter radar and comparison to solar wind IMF
Geophys. Res. Lett., 2010
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2009


H. Bahcivan, M. C. Kelley, and J. W. Cutler
Radar and rocket comparison of UHF radar scattering from auroral electrojet irregularities: Implications for a nanosatellite radar
J. Geophys. Res., 2009
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