Publications
Prikryl, P., R. Ghoddousi-Fard, E. G. Thomas, J. M. Ruohoniemi, S. G. Shepherd, P. T. Jayachandran, D. W. Danskin, E. Spanswick, Y. Zhang, Y. Jiao, and Y. T. Morton (2015), GPS phase scintillation at high latitudes during geomagnetic storms of 7–17 March 2012 – Part 1: The North American sector, Ann. Geophys., 33, 637-656, doi:10.5194/angeo-33-637-2015.
More...

Prikryl, P., R. Ghoddousi-Fard, L. Spogli, C. N. Mitchell, G. Li, B. Ning, P. J. Cilliers, V. Sreeja, M. Aquino, M. Terkildsen, P. T. Jayachandran, Y. Jiao, Y. T. Morton, J. M. Ruohoniemi, E. G. Thomas, Y. Zhang, A. T. Weatherwax, L. Alfonsi, G. De Franceschi, and V. Romano (2015), GPS phase scintillation at high latitudes during geomagnetic storms of 7–17 March 2012 – Part 2: Interhemispheric comparison, Ann. Geophys., 33, 657-670, doi:10.5194/angeo-33-657-2015.
More...

Zou, Y., Y. Nishimura, L. R. Lyons, K. Shiokawa, E. F. Donovan, J. M. Ruohoniemi, K. A. McWilliams, and N. Nishitani (2015), Localized polar cap flow enhancement tracing using airglow patches: Statistical properties, IMF dependence, and contribution to polar cap convection. J. Geophys. Res. Space Physics, 120, 4064–4078, doi:10.1002/2014JA020946.
More...

Yu, Y., V. Jordanova, S. Zou, R. A. Heelis, J. M. Ruohoniemi, and J. R. Wygant (2015), Modeling sub-auroral polarization streams (SAPS) during the March 17, 2013 storm, J. Geophys. Res. Space Physics, 120, 1738–1750, doi:10.1002/2014JA020371.
More...

Richards, P. G., M. J. Nicolls, J.-P. St.-Maurice, L. Goodwin, and J. M. Ruohoniemi (2015), Investigation of sudden electron density depletions observed in the dusk sector by the Poker Flat, Alaska incoherent scatter radar in summer, J. Geophys. Res. Space Physics, 119, 10,608–10,620. doi:10.1002/2014JA020541.
More...

Frissell, N. A., E. S. Miller, S. R. Kaeppler, F. Ceglia, D. Pascoe, N. Sinanis, P. Smith, R. Williams, and A. Shovkoplyas (2014), Ionospheric Sounding Using Real-Time Amateur Radio Reporting Networks, Space Weather, 12, 651–656, doi:10.1002/2014SW001132.
More...

Zou, S., M. B. Moldwin, A. J. Ridley, M. J. Nicolls, A. J. Coster, E G. Thomas, and J. M. Ruohoniemi (2014), On the Generation/Decay of the Storm-Enhanced Density (SED) Plumes: Role of the Convection Flow and Field-Aligned Ion Flow, J. Geophys. Res. Space Physics, 119, 8543–8559, doi:10.1002/2014JA020408.
More...

Frissell, N. A., J. B. H. Baker, J. M. Ruohoniemi, A. J. Gerrard, E. S. Miller, J. P. Marini, M. L. West, and W. A. Bristow (2014), Climatology of Medium Scale Traveling Ionospheric Disturbances Observed by the Midlatitude Blackstone SuperDARN Radar, J. Geophys. Res. Space Physics, 119, 7679–7697, doi:10.1002/2014JA019870.
More...

Makela, J. J., et al. (2014), Storm time response of the midlatitude thermosphere: Observations from a network of Fabry-Perot interferometers, J. Geophys. Res. Space Physics, 119, 6758–6773, doi:10.1002/2014JA019832.
More...

Bland, E. C., A. J. McDonald, S. de Larquier, and J. C. Devlin (2014), Determination of ionospheric parameters in real-time using SuperDARN HF radars, J. Geophys. Res. Space Physics, 119, 5830–5846, doi:10.1002/2014JA020076.
More...

Nishimura, Y., et al. (2014), Day-night coupling by a localized flow channel visualized by polar cap patch propagation, Geophys. Res. Lett., 41, 3701–3709, doi:10.1002/2014GL060301.
More...

de Larquier, S., A. Eltrass, A. Mahmoudian, J. M. Ruohoniemi, J. B. H. Baker, W. A. Scales, P. J. Erickson, and R. A. Greenwald (2014), Investigation of the Temperature Gradient Instability as the Source of Mid-Latitude Quiet-Time Decameter-Scale Ionospheric Irregularities: Part 1, Observations, J. Geophys. Res. Space Physics, 119, 4872–4881, doi:10.1002/2013JA019643.
More...

Eltrass, A., A. Mahmoudian, W. A. Scales, S. de Larquier, J. M. Ruohoniemi, J. B. H. Baker, R. A. Greenwald, and P. J. Erickson (2014), Investigation of the Temperature Gradient Instability as the Source of Mid-Latitude Quiet-Time Decameter-Scale Ionospheric Irregularities: Part 2, Linear Analysis, J. Geophys. Res. Space Physics, 119, 4882–4893, doi:10.1002/2013JA019644.
More...

Gallardo-Lacourt, B., Y. Nishimura, L. R. Lyons, S. Zou, V. Angelopoulos, E. Donovan, K. A. McWilliams, J. M. Ruohoniemi, and N. Nishitani (2014), Coordinated SuperDARN-THEMIS ASI observations of mesoscale flow bursts associated with auroral streamers, J. Geophys. Res. Space Physics, 119, 142–150, doi:10.1002/2013JA019245.
More...

Zou, Y., Y. Nishimura, L. R. Lyons, E. F. Donovan, J. M. Ruohoniemi, N. Nishitani, and K. A. McWilliams (2014), Statistical relationships between enhanced polar cap flows and PBIs, J. Geophys. Res. Space Physics, 119, 151–162, doi:10.1002/2013JA019269.
More...

McDonald, A. J., J. Whittington, S. de Larquier, E. Custovic, T. A. Kane, and J. C. Devlin (2013), Elevation angle-of-arrival determination for a standard and a modified superDARN HF radar layout, Radio Sci., 48, 709–721, doi:10.1002/2013RS005157.
More...

Zou, S., A. J. Ridley, M. B. Moldwin, M. J. Nicolls, A. J. Coster, E. G. Thomas, and J. M. Ruohoniemi (2013), Multi-instrument observations of SED during 24–25 October 2011 storm: Implications for SED formation processes, J. Geophys. Res. Space Physics, 118, 7798–7809, doi:10.1002/2013JA018860.
More...

Lyons, L. R., Y. Nishimura, B. Gallardo-Lacourt, Y. Zou, E. Donovan, S. Mende, V. Angelopoulos, J. M. Ruohoniemi, and K. McWilliams (2013), Westward traveling surges: Sliding along boundary arcs and distinction from onset arc brightening, J. Geophys. Res. Space Physics, 118, 7643–7653, doi:10.1002/2013JA019334.
More...

Milan, S. E., A. Grocott, S. de Larquier, M. Lester, T. K. Yeoman, M. P. Freeman, and G. Chisham (2013), Traveling ionospheric disturbances in the Weddell Sea Anomaly associated with geomagnetic activity, J. Geophys. Res. Space Physics, 118, 6608–6617, doi:10.1002/jgra.50566.
More...

Kim, H., X. Cai, C. R. Clauer, B. S. R. Kunduri, J. Matzka, C. Stolle, and D. R. Weimer (2013), Geomagnetic response to solar wind dynamic pressure impulse events at high-latitude conjugate points, J. Geophys. Res. Space Physics, 118, 6055–6071, doi:10.1002/jgra.50555.
More...

Kissinger, J., F. D. Wilder, R. L. McPherron, T.-S. Hsu, J. B. H. Baker, and L. Kepko (2013), Statistical occurrence and dynamics of the Harang discontinuity during steady magnetospheric convection, J. Geophys. Res. Space Physics, 118, 5127–5135, doi:10.1002/jgra.50503.
More...

de Larquier, S., P. Ponomarenko, A. J. Ribeiro, J. M. Ruohoniemi, J. B. H. Baker, K. T. Sterne, and M. Lester (2013), On the spatial distribution of decameter‒scale subauroral ionospheric irregularities observed by SuperDARN radars, J. Geophys. Res. Space Physics, 118, 5244–5254, doi:10.1002/jgra.50475.
More...

Ribeiro, A. J., J. M. Ruohoniemi, P. V. Ponomarenko, L. B. N. Clausen, J. B. H. Baker, R. A. Greenwald, K. Oksavik, and S. de Larquier (2013), A comparison of SuperDARN ACF fitting methods, Radio Sci., 48, 274-282, doi:10.1002/rds.20031.
More...

Ribeiro, A. J., P. V. Ponomarenko, J. M. Ruohoniemi, J. B. H. Baker, L. B. N. Clausen, R. A. Greenwald, and S. de Larquier (2013), A realistic radar data simulator for the Super Dual Auroral Radar Network, Radio Sci., 48, 283-288, doi:10.1002/rds.20032.
More...

Wilder, F. D., S. Eriksson, H. Korth, J. B. H. Baker, M. R. Hairston, C. Heinselman, and B. J. Anderson (2013), Field-aligned current reconfiguration and magnetospheric response to an impulse in the interplanetary magnetic field BY component, Geophys. Res. Lett., 40, 2489–2494, doi:10.1002/grl.50505.
More...

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Co-Authored Publications
Prikryl, P., R. Ghoddousi-Fard, E. G. Thomas, J. M. Ruohoniemi, S. G. Shepherd, P. T. Jayachandran, D. W. Danskin, E. Spanswick, Y. Zhang, Y. Jiao, and Y. T. Morton (2015), GPS phase scintillation at high latitudes during geomagnetic storms of 7–17 March 2012 – Part 1: The North American sector, Ann. Geophys., 33, 637-656, doi:10.5194/angeo-33-637-2015.
More...

Prikryl, P., R. Ghoddousi-Fard, L. Spogli, C. N. Mitchell, G. Li, B. Ning, P. J. Cilliers, V. Sreeja, M. Aquino, M. Terkildsen, P. T. Jayachandran, Y. Jiao, Y. T. Morton, J. M. Ruohoniemi, E. G. Thomas, Y. Zhang, A. T. Weatherwax, L. Alfonsi, G. De Franceschi, and V. Romano (2015), GPS phase scintillation at high latitudes during geomagnetic storms of 7–17 March 2012 – Part 2: Interhemispheric comparison, Ann. Geophys., 33, 657-670, doi:10.5194/angeo-33-657-2015.
More...

Zou, Y., Y. Nishimura, L. R. Lyons, K. Shiokawa, E. F. Donovan, J. M. Ruohoniemi, K. A. McWilliams, and N. Nishitani (2015), Localized polar cap flow enhancement tracing using airglow patches: Statistical properties, IMF dependence, and contribution to polar cap convection. J. Geophys. Res. Space Physics, 120, 4064–4078, doi:10.1002/2014JA020946.
More...

Yu, Y., V. Jordanova, S. Zou, R. A. Heelis, J. M. Ruohoniemi, and J. R. Wygant (2015), Modeling sub-auroral polarization streams (SAPS) during the March 17, 2013 storm, J. Geophys. Res. Space Physics, 120, 1738–1750, doi:10.1002/2014JA020371.
More...

Richards, P. G., M. J. Nicolls, J.-P. St.-Maurice, L. Goodwin, and J. M. Ruohoniemi (2015), Investigation of sudden electron density depletions observed in the dusk sector by the Poker Flat, Alaska incoherent scatter radar in summer, J. Geophys. Res. Space Physics, 119, 10,608–10,620. doi:10.1002/2014JA020541.
More...

Frissell, N. A., E. S. Miller, S. R. Kaeppler, F. Ceglia, D. Pascoe, N. Sinanis, P. Smith, R. Williams, and A. Shovkoplyas (2014), Ionospheric Sounding Using Real-Time Amateur Radio Reporting Networks, Space Weather, 12, 651–656, doi:10.1002/2014SW001132.
More...

Zou, S., M. B. Moldwin, A. J. Ridley, M. J. Nicolls, A. J. Coster, E G. Thomas, and J. M. Ruohoniemi (2014), On the Generation/Decay of the Storm-Enhanced Density (SED) Plumes: Role of the Convection Flow and Field-Aligned Ion Flow, J. Geophys. Res. Space Physics, 119, 8543–8559, doi:10.1002/2014JA020408.
More...

Frissell, N. A., J. B. H. Baker, J. M. Ruohoniemi, A. J. Gerrard, E. S. Miller, J. P. Marini, M. L. West, and W. A. Bristow (2014), Climatology of Medium Scale Traveling Ionospheric Disturbances Observed by the Midlatitude Blackstone SuperDARN Radar, J. Geophys. Res. Space Physics, 119, 7679–7697, doi:10.1002/2014JA019870.
More...

Makela, J. J., et al. (2014), Storm time response of the midlatitude thermosphere: Observations from a network of Fabry-Perot interferometers, J. Geophys. Res. Space Physics, 119, 6758–6773, doi:10.1002/2014JA019832.
More...

Bland, E. C., A. J. McDonald, S. de Larquier, and J. C. Devlin (2014), Determination of ionospheric parameters in real-time using SuperDARN HF radars, J. Geophys. Res. Space Physics, 119, 5830–5846, doi:10.1002/2014JA020076.
More...

Nishimura, Y., et al. (2014), Day-night coupling by a localized flow channel visualized by polar cap patch propagation, Geophys. Res. Lett., 41, 3701–3709, doi:10.1002/2014GL060301.
More...

de Larquier, S., A. Eltrass, A. Mahmoudian, J. M. Ruohoniemi, J. B. H. Baker, W. A. Scales, P. J. Erickson, and R. A. Greenwald (2014), Investigation of the Temperature Gradient Instability as the Source of Mid-Latitude Quiet-Time Decameter-Scale Ionospheric Irregularities: Part 1, Observations, J. Geophys. Res. Space Physics, 119, 4872–4881, doi:10.1002/2013JA019643.
More...

Eltrass, A., A. Mahmoudian, W. A. Scales, S. de Larquier, J. M. Ruohoniemi, J. B. H. Baker, R. A. Greenwald, and P. J. Erickson (2014), Investigation of the Temperature Gradient Instability as the Source of Mid-Latitude Quiet-Time Decameter-Scale Ionospheric Irregularities: Part 2, Linear Analysis, J. Geophys. Res. Space Physics, 119, 4882–4893, doi:10.1002/2013JA019644.
More...

Gallardo-Lacourt, B., Y. Nishimura, L. R. Lyons, S. Zou, V. Angelopoulos, E. Donovan, K. A. McWilliams, J. M. Ruohoniemi, and N. Nishitani (2014), Coordinated SuperDARN-THEMIS ASI observations of mesoscale flow bursts associated with auroral streamers, J. Geophys. Res. Space Physics, 119, 142–150, doi:10.1002/2013JA019245.
More...

Zou, Y., Y. Nishimura, L. R. Lyons, E. F. Donovan, J. M. Ruohoniemi, N. Nishitani, and K. A. McWilliams (2014), Statistical relationships between enhanced polar cap flows and PBIs, J. Geophys. Res. Space Physics, 119, 151–162, doi:10.1002/2013JA019269.
More...

McDonald, A. J., J. Whittington, S. de Larquier, E. Custovic, T. A. Kane, and J. C. Devlin (2013), Elevation angle-of-arrival determination for a standard and a modified superDARN HF radar layout, Radio Sci., 48, 709–721, doi:10.1002/2013RS005157.
More...

Zou, S., A. J. Ridley, M. B. Moldwin, M. J. Nicolls, A. J. Coster, E. G. Thomas, and J. M. Ruohoniemi (2013), Multi-instrument observations of SED during 24–25 October 2011 storm: Implications for SED formation processes, J. Geophys. Res. Space Physics, 118, 7798–7809, doi:10.1002/2013JA018860.
More...

Lyons, L. R., Y. Nishimura, B. Gallardo-Lacourt, Y. Zou, E. Donovan, S. Mende, V. Angelopoulos, J. M. Ruohoniemi, and K. McWilliams (2013), Westward traveling surges: Sliding along boundary arcs and distinction from onset arc brightening, J. Geophys. Res. Space Physics, 118, 7643–7653, doi:10.1002/2013JA019334.
More...

Milan, S. E., A. Grocott, S. de Larquier, M. Lester, T. K. Yeoman, M. P. Freeman, and G. Chisham (2013), Traveling ionospheric disturbances in the Weddell Sea Anomaly associated with geomagnetic activity, J. Geophys. Res. Space Physics, 118, 6608–6617, doi:10.1002/jgra.50566.
More...

Kim, H., X. Cai, C. R. Clauer, B. S. R. Kunduri, J. Matzka, C. Stolle, and D. R. Weimer (2013), Geomagnetic response to solar wind dynamic pressure impulse events at high-latitude conjugate points, J. Geophys. Res. Space Physics, 118, 6055–6071, doi:10.1002/jgra.50555.
More...

Kissinger, J., F. D. Wilder, R. L. McPherron, T.-S. Hsu, J. B. H. Baker, and L. Kepko (2013), Statistical occurrence and dynamics of the Harang discontinuity during steady magnetospheric convection, J. Geophys. Res. Space Physics, 118, 5127–5135, doi:10.1002/jgra.50503.
More...

de Larquier, S., P. Ponomarenko, A. J. Ribeiro, J. M. Ruohoniemi, J. B. H. Baker, K. T. Sterne, and M. Lester (2013), On the spatial distribution of decameter‒scale subauroral ionospheric irregularities observed by SuperDARN radars, J. Geophys. Res. Space Physics, 118, 5244–5254, doi:10.1002/jgra.50475.
More...

Ribeiro, A. J., J. M. Ruohoniemi, P. V. Ponomarenko, L. B. N. Clausen, J. B. H. Baker, R. A. Greenwald, K. Oksavik, and S. de Larquier (2013), A comparison of SuperDARN ACF fitting methods, Radio Sci., 48, 274-282, doi:10.1002/rds.20031.
More...

Ribeiro, A. J., P. V. Ponomarenko, J. M. Ruohoniemi, J. B. H. Baker, L. B. N. Clausen, R. A. Greenwald, and S. de Larquier (2013), A realistic radar data simulator for the Super Dual Auroral Radar Network, Radio Sci., 48, 283-288, doi:10.1002/rds.20032.
More...

Wilder, F. D., S. Eriksson, H. Korth, J. B. H. Baker, M. R. Hairston, C. Heinselman, and B. J. Anderson (2013), Field-aligned current reconfiguration and magnetospheric response to an impulse in the interplanetary magnetic field BY component, Geophys. Res. Lett., 40, 2489–2494, doi:10.1002/grl.50505.
More...

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