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Journal Articles by M. J. Nicolls


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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Zou, S., A. Ridley, X. Jia, E. Boyd, M. Nicolls, A. Coster, E. Thomas, and J. M. Ruohoniemi
PFISR observation of intense ion upflow fluxes associated with an SED during the 1 June 2013 geomagnetic storm
J. Geophys. Res. Space Physics, 2017
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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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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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Zhang, S.-R., J. M. Holt, P. J. Erickson, L. P. Goncharenko, M. J. Nicolls, M. McCready, and J. Kelly
Ionospheric ion temperature climate and upper atmospheric long-term cooling
J. Geophys. Res. Space Physics, 2016
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S. R. Kaeppler, D. L. Hampton, M. J. Nicolls, A. Strømme, S. C. Solomon, J. H. Hecht, and M. G. Conde
An investigation comparing ground-based techniques that quantify auroral electron flux and conductance
J. Geophys. Res. Space Physics, 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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D. A. Hickey, C. R. Martinis, F. S. Rodrigues, R. H. Varney, M. A. Milla, M. J. Nicolls, A. Strømme, and J. F. Arratia
Concurrent observations at the magnetic equator of small-scale irregularities and large-scale depletions associated with equatorial spread F
J. Geophys. Res., 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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F. S. Rodrigues., M. J. Nicolls, M. A. Milla, J. M. Smith, R. H. Varney, A. Strømme, C. Martinis, and J. F. Arratia
AMISR-14: Observations of equatorial spread F
Geophys. Res. Lett., 2015
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K. A. Lynch, D. L. Hampton, M. Zettergren, T. A. Bekkeng, M. Conde, P. A. Fernandes, P. Horak, M. Lessard, R. Miceli, R. Michell, J. Moen, M. Nicolls, S. P. Powell, and M. Samara
MICA sounding rocket observations of conductivity-gradient-generated auroral ionospheric responses: Small-scale structure with large-scale drivers
J. Geophys. Res. Space Physics, 2015
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L. R. Lyons, Y. Nishimura, B. Gallardo-Lacourt, M. J. Nicolls, S. Chen, D. L. Hampton, W. A. Bristow, J. M. Ruohoniemi, N. Nishitani, E. F. Donovan, and V. Angelopoulos
Azimuthal flow bursts in the Inner Plasma Sheet and Possible Connection with SAPS and Plasma Sheet Earthward Flow Bursts
J. Geophys. Res., 2015
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H. Akbari, J. L. Semeter, M. A. Hirsch, P. Guio, and M. J. Nicolls
Evidence for generation of unstable suprathermal electron population in the auroral F-region
Geophys. Res. Lett., 2015
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L. R. Liuzzo, A. J. Ridley, N. J. Perlongo, E. J. Mitchell, M. Conde, D. L. Hampton, W. A. Bristow, and M. J. Nicolls
High-latitude ionospheric drivers and their effects on wind patterns in the thermosphere
J. Geophys. Res., 2015
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D. Janches, N. Swarnalingam, J. Plane, D. Nesvorny, W. Feng, D. Vokrouhlicky, and M. Nicolls
Radar detectability studies of slow and small Zodiacal Dust Cloud Particles: II. A study of three radars with di erent sensitivity
The Astrophysical Journal, 2014
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M. J. Nicolls, H. Bahcivan, I. Haggstrom, and M. Rietveld
Direct Measurement of Lower-Thermospheric Neutral Density using Multi-Frequency Incoherent Scattering
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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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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P. G. Richards, M. J. Nicolls, J.-P. S. Maurice, L. Goodwin, and J. M. Ruohoniemi
Investigation of sudden electron density depletions observed in the dusk sector by the Poker Flat, Alaska incoherent scatter radar in summer
J. Geophys. Res., 2014
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S. Zou, M. B. Moldwin, A. J. Ridley, M. J. Nicolls, A. J. Coster, E. G. Thomas, and J. M. Ruohoniemi
On the generation/decay of the storm-enhanced density plumes: Role of the convection flow and field-aligned ion flow
J. Geophys. Res., 2014
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S. R. Kaeppler, M. J. Nicolls, A. Stromme, C. A. Kletzing, and S. R. Bounds
Observations in the E-region ionosphere of kappa distribution functions associated with precipitating auroral electrons and discrete aurorae
J. Geophys. Res., 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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Y. Nishimura, L. R. Lyons, M. J. Nicolls, D. L. Hampton, R. G. Michell, M. Samara, W. A. Bristow, E. F. Donovan, E. Spanswick, V. Angelopoulos, and S. B. Mende
Coordinated ionospheric observations indicating coupling between pre-onset flow bursts and waves that leads to substorm onset
J. Geophys. Res., 2014
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J. J. Sojka, R. W. Schunk, and M. J. Nicolls
Ionospheric Ion Temperature Forecasting in Multiples of 27 Days
Space Weather, 2014
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M. Zettergren, K. Lynch, D. Hampton, M. Nicolls, B. Wright, M. Conde, J. Moen, M. Lessard, R. Miceli, and S. Powell
Auroral ionospheric F region density cavity formation and evolution: MICA campaign results
J. Geophys. Res., 2014
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L. Goodwin, J.-P. St.-Maurice, P. Richards, M. Hairston, and M. Nicolls
F region dusk ion temperature spikes at the equatorward edge of the high latitude convection pattern
Geophys. Res. Lett., 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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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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H. Bahcivan, J. W. Cutler, J. C. Springmann, R. Doe, and M. J. Nicolls
Magnetic aspect sensitivity of high-latitude E region irregularities measured by the RAX CubeSat
J. Geophys. Res., 2014
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C. Anderson, M. J. Kosch, M. J. Nicolls, and M. Conde
Ion-neutral coupling in Earth's thermosphere, estimated from concurrent radar and optical observations over Alaska
J. Atmos. Solar-Terr. Phys., 2013
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R. A. Makarevich, A. V. Koustov, and M. J. Nicolls
Poker Flat Incoherent Scatter Radar observations of anomalous electron heating in the E-region
Ann. Geophys., 2013
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S. Zou, A. Ridley, M. Moldwin, M. Nicolls, A. Coster, and M. Ruohoniemi
Multi-instrument Observations of Storm Enhanced Density (SED) during Oct. 24-25 2011 Storm: Implications for SED Formation Processes
J. Geophys. Res., 2013
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R. A. Makarevich and M. J. Nicolls
Statistical comparison of TEC derived from GPS and ISR observations at high latitudes
Radio Sci., 2013
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H. Akbari, J. L. Semeter, M. J. Nicolls, M. Broughton, and J. W. LaBelle
On the localization of auroral Langmuir turbulence in thin layers
J. Geophys. Res., 2013
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S. Zou, M. B. Moldwin, M. J. Nicolls, A. J. Ridley, A. J. Coster, E. Yizengaw, L. R. Lyons, and E. F. Donovan
Electrodynamics of the high-latitude trough: its relationship with convection flows and field-aligned currents
J. Geophys. Res., 2013
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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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J. T. Fentzke, V. Hsu, C. G. M. Brum, I. Strelnikova, M. Rapp, and M. Nicolls
D region meteoric smoke and neutral temperature retrieval using the poker flat incoherent scatter radar
Geophys. Res. Lett., 2012
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D. Hysell, R. Miceli, J. Munk, D. Hampton, C. Heinselman, M. Nicolls, S. Powell, K. Lynch, and M. Lessard
Comparing VHF coherent scatter from the radar aurora with incoherent scatter and all-sky auroral imagery
J. Geophys. Res., 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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H. Bahcivan, J. W. Cutler, M. Bennett, B. Kempke, J. C. Springmann, J. Buonocore, M. Nicolls, and R. Doe
First measurements of radar coherent scatter by the Radio Aurora Explorer CubeSat
Geophys. Res. Lett., 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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S. L. Vadas and M. J. Nicolls
The phases and amplitudes of gravity waves propagating and dissipating in the thermosphere: Theory
J. Geophys. Res., 2012
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M. J. Nicolls, S. L. Vadas, J. W. Meriwether, M. G. Conde, and D. Hampton
The phases and amplitudes of gravity waves propagating and dissipating in the thermosphere: Application to measurements over Alaska
J. Geophys. Res., 2012
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M. J. Nicolls, D. C. Fritts, D. Janches, and C. J. Heinselman
Momentum flux determination using the multi-beam Poker Flat Incoherent Scatter Radar
Ann. Geophys., 2012
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J. K. Burchill, J. H. Clemmons, D. J. Knudsen, M. Larsen, M. J. Nicolls, R. F. Pfaff, D. Rowland, and L. Sangalli
High-latitude E region ionosphere-thermosphere coupling: A comparative study using in situ and incoherent scatter radar observations
J. Geophys. Res., 2012
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H. Akbari, J. L. Semeter, H. Dahlgren, M. Diaz, M. Zettergren, A. Strømme, M. J. Nicolls, and C. Heinselman
Anomalous ISR echoes preceding auroral breakup: Evidence for strong Langmuir turbulence
Geophys. Res. Lett., 2012
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J. Liang, E. Spanswick, M. J. Nicolls, E. F. Donovan, D. Lummerzheim, and W. W. Liu
Multi-instrument observations of soft electron precipitation and its association with magnetospheric flows
J. Geophys. Res., 2011
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J. J. Sojka, M. Nicolls, A. van Eyken, C. Heinselman, and D. Bilitza
24/7 Solar minimum polar cap and auroral ion temperature observations
Advances in Space Research, 2011
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S. Zou, M. B. Moldwin, A. Coster, L. R. Lyons, and M. J. Nicolls
GPS TEC observations of dynamics of the mid-latitude trough during substorms
Geophys. Res. Lett., 2011
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R. H. Varney, M. C. Kelley, M. J. Nicolls, C. J. Heinselman, and R. L. Collins
The electron density dependence of polar mesospheric summer echoes
J Atmos Sol-Terr Phy, 2011
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M. R. Mella, K. A. Lynch, D. L. Hampton, H. Dahlgren, P. M. Kintner, M. Lessard, D. Lummerzheim, E. T. Lundberg, M. J. Nicolls, and H. C. Stenbaek-Nielsen
Sounding rocket study of two sequential auroral poleward boundary intensifications
J. Geophys. Res., 2011
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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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M. C. Kelley, M. J. Nicolls, R. H. Varney, R. L. Collins, R. Doe, J. M. C. Plane, J. Thayer, M. Taylor, B. Thurairajah, and K. Mizutani
Radar, lidar, and optical observations in the polar summer mesosphere shortly after a space shuttle launch
J. Geophys. Res., 2010
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L. R. Lyons, Y. Nishimura, Y. Shi, S. Zou, H.-J. Kim, V. Angelopoulos, C. Heinselman, M. J. Nicolls, and K.-H. Fornacon
Substorm triggering by new plasma intrusion: Incoherent-scatter radar observations
J. Geophys. Res., 2010
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J. Semeter, T. W. Butler, M. Zettergren, C. J. Heinselman, and M. J. Nicolls
Composite imaging of auroral forms and convective flows during a substorm cycle
J. Geophys. Res., 2010
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R. Cosgrove, M. Nicolls, H. Dahlgren, S. Ranjan, E. Sanchez, and R. Doe
Radar detection of a localized 1.4 Hz pulsation in auroral plasma, simultaneous with pulsating optical emissions, during a substorm
Ann Geophys, 2010
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M. J. Nicolls, R. H. Varney, S. L. Vadas, P. A. Stamus, C. J. Heinselman, R. B. Cosgrove, and M. C. Kelley
Influence of an inertia-gravity wave on mesospheric dynamics: A case study with the Poker Flat Incoherent Scatter Radar
J. Geophys. Res., 2010
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J. J. Sparks, D. Janches, M. J. Nicolls, and C. Heinselman
Determination of physical and radiant meteor properties using PFISR interferometry measurements of head echoes
J Atmos Sol-Terr Phy, 2010
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T. W. Butler, J. Semeter, C. J. Heinselman, and M. J. Nicolls
Imaging F region drifts using monostatic phased-array incoherent scatter radar
Radio Sci., 2010
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Y. Nishimura, L. R. Lyons, S. Zou, X. Xing, V. Angelopoulos, S. B. Mende, J. W. Bonnell, D. Larson, U. Auster, T. Hori, N. Nishitani, K. Hosokawa, G. Sofko, M. Nicolls, and C. Heinselman
Preonset time sequence of auroral substorms: Coordinated observations by all-sky imagers, satellites, and radars
J. Geophys. Res., 2010
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M. G. Conde and M. J. Nicolls
Thermospheric temperatures above Poker Flat, Alaska, during the stratospheric warming event of January and February 2009
J. Geophys. Res., 2010
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S. Zou, M. B. Moldwin, L. R. Lyons, Y. Nishimura, M. Hirahara, T. Sakanoi, K. Asamura, M. J. Nicolls, Y. Miyashita, S. B. Mende, and C. J. Heinselman
Identification of substorm onset location and preonset sequence using Reimei, THEMIS GBO, PFISR, and Geotail
J. Geophys. Res., 2010
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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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S. Zou, L. R. Lyons, M. J. Nicolls, C. J. Heinselman, and S. B. Mende
Nightside ionospheric electrodynamics associated with substorms: PFISR and THEMIS ASI observations
J. Geophys. Res., 2009
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S. Zou, L. R. Lyons, M. J. Nicolls, and C. J. Heinselman
PFISR observations of strong azimuthal flow bursts in the ionosphere and their relation to nightside aurora
J. Atmos. Solar-Terr. Phys., 2009
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R. H. Varney, M. J. Nicolls, C. J. Heinselman, and M. C. Kelley
Observations of polar mesospheric summer echoes using PFISR during the summer of 2007
J. Atmos. Solar-Terr. Phys., 2009
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S. L. Vadas and M. J. Nicolls
Temporal evolution of neutral, thermospheric winds and plasma response using PFISR measurements of gravity waves
J. Atmos. Solar-Terr. Phys., 2009
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M. J. Taylor, Y. Zhao, P.-D. Pautet, M. J. Nicolls, R. L. Collins, J. Barker-Tvedtnes, C. D. Burton, B. Thurairajah, J. Reimuller, R. H. Varney, C. J. Heinselman, and K. Mizutani
Coordinated optical and radar image measurements of noctilucent clouds and polar mesospheric summer echoes
J. Atmos. Solar-Terr. Phys., 2009
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J. J. Sparks, D. Janches, M. J. Nicolls, and C. J. Heinselman
Seasonal and diurnal variability of the meteor flux at high latitudes observed using PFISR
J. Atmos. Solar-Terr. Phys., 2009
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J. J. Sojka, M. J. Nicolls, C. J. Heinselman, and J. D. Kelly
The PFISR IPY observations of ionospheric climate and weather
J. Atmos. Solar-Terr. Phys., 2009
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J. J. Sojka, R. L. McPherron, A. P. van Eyken, M. J. Nicolls, C. J. Heinselman, and J. D. Kelly
Observations of ionospheric heating during the passage of solar coronal hole fast streams
Geophys. Res. Lett., 2009
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J. Semeter, T. Butler, C. Heinselman, M. Nicolls, J. Kelly, and D. Hampton
Volumetric imaging of the auroral ionosphere: Initial results from PFISR
J. Atmos Solar-Terr. Phys., 2009
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P. G. Richards, M. J. Nicolls, C. J. Heinselman, J. J. Sojka, J. M. Holt, and R. R. Meier
Measured and modeled ionospheric densities, temperatures, and winds during the international polar year
J. Geophys. Res., 2009
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M. J. Nicolls, M. C. Kelley, R. H. Varney, and C. J. Heinselman
Spectral observations of polar mesospheric summer echoes at 33 cm (450 MHz) with the Poker Flat Incoherent Scatter Radar
J. Atmos Solar-Terr. Phys., 2009
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L. R. Lyons, S. Zou, C. J. Heinselman, M. J. Nicolls, and P. C. Anderson
Poker flat radar observations of the magnetosphere-ionosphere coupling electrodynamics of the earthward penetrating plasma sheet following convection enhancements
J. Atmos Solar-Terr. Phys., 2009
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L. R. Lyons, H.-J. Kim, X. Xing, S. Zou, D.-Y. Lee, C. Heinselman, M. J. Nicolls, V. Angelopoulos, D. Larson, J. McFadden, A. Runov, and K.-H. Fornacon
Evidence that solar wind fluctuations substantially affect global convection and substorm occurrence
J. Geophys. Res., 2009
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D. Janches, D. C. Fritts, M. J. Nicolls, and C. J. Heinselman
Observations of D-region structure and atmospheric tides with PFISR during active aurora
J. Atmos Solar-Terr. Phys., 2009
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D. L. Hysell, G. Michhue, M. J. Nicolls, C. J. Heinselman, and M. F. Larsen
Assessing auroral electric field variance with coherent and incoherent scatter radar
J. Atmos Solar-Terr. Phys., 2009
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J. L. Chau, F. R. Galindo, C. J. Heinselman, and M. J. Nicolls
Meteor-head echo observations using an antenna compression approach with the 450 MHz Poker Flat Incoherent Scatter Radar
J. Atmos Solar-Terr. Phys., 2009
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S. L. Vadas and M. J. Nicolls
Using PFISR measurements and gravity wave dissipative theory to determine the neutral, background thermospheric winds
Geophys. Res. Lett., 2008
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D. L. Hysell, G. Michhue, M. F. Larsen, R. Pfaff, M. Nicolls, C. Heinselman, and H. Bahcivan
Imaging radar observations of Farley Buneman waves during the JOULE II experiment
Ann. Geophys., 2008
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C. J. Heinselman and M. J. Nicolls
A Bayesian approach to electric field and E-region neutral wind estimation with the Poker Flat Advanced Modular Incoherent Scatter Radar
Radio Sci., 2008
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M. J. Nicolls and C. J. Heinselman
Three-dimensional measurements of traveling ionospheric disturbances with the Poker Flat Incoherent Scatter Radar
Geophys. Res. Lett., 2007
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M. J. Nicolls, C. J. Heinselman, E. A. Hope, S. Ranjan, M. C. Kelley, and J. D. Kelly
Imaging of Polar Mesosphere Summer Echoes with the 450 MHz Poker Flat Advanced Modular Incoherent Scatter Radar
Geophys. Res. Lett., 2007
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Conference Papers


M. J. Nicolls
Space Debris Measurements using the Advanced Modular Incoherent Scatter Radar
AMOS, 2015
amisr pfisr risrn
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D. L. Oltrogge, P. North, and M. J. Nicolls
MULTI-PHENOMENOLOGY OBSERVATION NETWORK EVALUATION TOOL (MONET)
AMOS, 2014
amisr pfisr
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T. Valentic, J. Buonocore, M. Cousins, C. Heinselman, J. Jorgensen, J. Kelly, M. Malone, M. Nicolls, and A. V. Eyken
AMISR: The Advanced Modular Incoherent Scatter Radar
2013 IEEE International Symposium on Phased Array Systems and Technology, 2013
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Book Chapters


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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