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2024
L. R. Lyons,
Y. Nishimura,
J. Liu,
S. Yadav,
Y. Zou,
W. A. Bristow,
E. Donovan, and
N. Nishitani
Space weather with an arc’s ∼2 h trip across the nightside polar cap
Frontiers in Astronomy and Space Sciences, 2024
pfisr
URL,
DOI,
BibTex
M. Nosé,
K. Hosokawa,
R. Nomura,
M. Teramoto,
K. Asamura,
Y. Miyoshi,
T. Mitani,
T. Sakanoi,
T. Namekawa,
T. Kawano,
Y. Iwanaga,
S. Tatematsu,
M. Hirahara,
A. Halford,
M. Shumko,
M. R. Lessard,
K. Lynch,
N. Paschalidis,
A. N. Jaynes, and
M. G. McHarg
Field-Aligned Currents Associated With Pulsating Auroral Patches: Observation With Magneto-Impedance Magnetometer (MIM) Onboard Loss Through Auroral Microburst Pulsations (LAMP) Sounding Rocket
Journal of Geophysical Research: Space Physics, 2024
pfisr
pfrr
magneto-impedance sensor
sounding rocket
field-aligned current
pulsating aurora
magnetic field
URL,
DOI,
BibTex
Y. Shen,
J. Liang,
A. Artemyev,
V. Angelopoulos,
Q. Ma,
L. Lyons,
J. Liu,
Y. Nishimura,
X.-J. Zhang,
I. Vasko, and
D. L. Hampton
Red Line Diffuse-Like Aurora Driven by Time Domain Structures Associated With Braking Magnetotail Flow Bursts
Geophysical Research Letters, 2024
time domain structures
diffuse aurora
discrete aurora
auroral precipitation
red line aurora
quasilinear diffusion
pfisr
URL,
DOI,
BibTex
Y. Shen,
J. Liang,
A. Artemyev,
V. Angelopoulos,
Q. Ma,
L. Lyons,
J. Liu,
Y. Nishimura,
X.-J. Zhang,
I. Vasko, and
D. L. Hampton
Red Line Diffuse-Like Aurora Driven by Time Domain Structures Associated With Braking Magnetotail Flow Bursts
Geophysical Research Letters, 2024
pfisr
purr
time domain structures
diffuse aurora
discrete aurora
auroral precipitation
red line aurora
quasilinear diffusion
URL,
DOI,
BibTex
D. R. Themens,
S. Elvidge,
A. McCaffrey,
P. T. Jayachandran,
A. Coster,
R. H. Varney,
I. Galkin,
L. V. Goodwin,
C. Watson,
S. Maguire,
A. J. Kavanagh,
S.-R. Zhang,
L. Goncharenko,
A. Bhatt,
G. Dorrian,
K. Groves,
A. G. Wood, and
B. Reid
The High Latitude Ionospheric Response to the Major May 2024 Geomagnetic Storm: A Synoptic View
Geophysical Research Letters, 2024
may 2024 geomagnetic storm
ionosphere
gnss
high latitudes
superstorm
polar cap
pfisr
URL,
PDF,
DOI,
BibTex
P. R. Vaggu,
M. Zettergren,
K. Deshpande,
Y. Nishimura,
J. Semeter,
M. Hirsch,
D. Hampton,
L. Lamarche, and
S. Datta-Barua
Model-Based Investigation of Electron Precipitation-Driven Density Structures and Their Effects on Auroral Scintillation
Journal of Geophysical Research: Space Physics, 2024
pfisr
auroral scintillation
electron precipitation
URL,
DOI,
BibTex
2023
X. Lu,
H. Wu,
S. Kaeppler,
J. Meriwether,
Y. Nishimura,
W. Wang,
J. Li, and
X. Shi
Understanding Strong Neutral Vertical Winds and Ionospheric Responses to the 2015 St. Patrick's Day Storm Using TIEGCM Driven by Data-Assimilated Aurora and Electric Fields
Space Weather, 2023
space weather modeling
data assimilation
aurora
electric fields
tiegcm
pfisr
superdarn
themis asis
URL,
PDF,
DOI,
BibTex
L. R. Lyons,
Y. Nishimura,
J. Liu,
Y. Zou,
W. A. Bristow,
S. Yadav,
E. Donovan,
N. Nishitani,
K. Shiokawa, and
K. Hosokawa
Unsolved problems: Mesoscale polar cap flow channels' structure, propagation, and effects on space weather disturbances
Frontiers in Astronomy and Space Sciences, 2023
rbo
imagers
URL,
PDF,
DOI,
BibTex
L. Schreiter,
C. Stolle,
J. Rauberg,
G. Kervalishvili,
J. van d. Ijssel,
D. Arnold,
C. Xiong, and
A. Callegare
Topside Ionosphere Sounding From the CHAMP, GRACE, and GRACE-FO Missions
Radio Science, 2023
pfisr
risrn
risrc
topside ionosphere
electron density
total electron content
leo satellites
radar calibration
URL,
PDF,
DOI,
BibTex
X. Tian,
Y. Yu,
F. Gong,
L. Ma,
J. Cao,
S. C. Solomon,
P. R. Shreedevi,
K. Shiokawa,
Y. Otsuka,
S.-i. Oyama, and
Y. Miyoshi
Ionospheric Modulation by EMIC Wave-Driven Proton Precipitation: Observations and Simulations
Journal of Geophysical Research: Space Physics, 2023
pfisr
URL,
DOI,
BibTex
P. R. Vaggu,
K. B. Deshpande,
S. Datta-Barua,
G. S. Bust,
D. L. Hampton,
A. L. Rubio, and
J. P. Conroy
Morphological and Spectral Features of Ionospheric Structures at E- and F-Region Altitudes over Poker Flat Analyzed Using Modeling and Observations
Sensors, 2023
pfisr
pfrr
URL,
PDF,
DOI,
BibTex
2022
L. Alfonsi,
N. Bergeot,
P. J. Cilliers,
G. D. Franceschi,
L. Baddeley,
E. Correia,
D. D. Mauro,
C.-F. Enell,
M. Engebretson,
R. Ghoddousi-Fard,
I. Häggström,
Y.-b. Ham,
G. Heygster,
G. Jee,
A. Kero,
M. Kosch,
H.-J. Kwon,
C. Lee,
S. Lotz,
L. Macotela,
M. F. Marcucci,
W. J. Miloch,
Y. J. Morton,
T. Naoi,
M. Negusini,
N. Partamies,
B. H. Petkov,
E. Pottiaux,
P. Prikryl,
P. R. Shreedevi,
R. Slapak,
L. Spogli,
J. Stephenson,
A. M. Triana-Gómez,
O. A. Troshichev,
R. V. Malderen,
J. M. Weygand, and
S. Zou
Review of Environmental Monitoring by Means of Radio Waves in the Polar Regions: From Atmosphere to Geospace
Surveys in Geophysics, 2022
pfisr
risrn
risrc
URL,
PDF,
DOI,
BibTex
N. A. Frissell,
S. R. Kaeppler,
D. F. Sanchez,
G. W. Perry,
W. D. Engelke,
P. J. Erickson,
A. J. Coster,
J. M. Ruohoniemi,
J. B. H. Baker, and
M. L. West
First Observations of Large Scale Traveling Ionospheric Disturbances Using Automated Amateur Radio Receiving Networks
Geophysical Research Letters, 2022
lstid
traveling ionospheric disturbance
midlatitude ionosphere
amateur radio
superdarn
gnss tec
pfisr
URL,
PDF,
DOI,
BibTex
C. Gabrielse,
S. R. Kaeppler,
G. Lu,
C.-P. Wang, and
Y. Yu
Chapter 4 - Energetic particle dynamics, precipitation, and conductivity
Cross-Scale Coupling and Energy Transfer in the Magnetosphere-Ionosphere-Thermosphere System,
Elsevier,
2022
particle precipitation
conductivity
conductance
convection
pfisr
URL,
DOI,
BibTex
N. H. Godbole,
M. R. Lessard,
D. R. Kenward,
B. A. Fritz,
R. H. Varney,
R. G. Michell, and
D. Hampton
Observations of ion upflow and 630.0 nm emission during pulsating aurora
Frontiers in Physics, 2022
pfisr
URL,
PDF,
DOI,
BibTex
Q. Ma,
W. Xu,
E. R. Sanchez,
R. A. Marshall,
J. Bortnik,
P. M. Reyes,
R. H. Varney,
S. R. Kaeppler,
Y. Miyoshi,
A. Matsuoka,
Y. Kasahara,
S. Matsuda,
F. Tsuchiya,
A. Kumamoto,
S. Kasahara,
S. Yokota,
K. Keika,
T. Hori,
T. Mitani,
S. Nakamura,
Y. Kazama,
S.-Y. Wang,
C.-W. Jun,
I. Shinohara, and
S. W.-Y. Tam
Analysis of Electron Precipitation and Ionospheric Density Enhancements Due To Hiss Using Incoherent Scatter Radar and Arase Observations
Journal of Geophysical Research: Space Physics, 2022
pfisr
URL,
DOI,
BibTex
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, 2022
pfisr
URL,
DOI,
BibTex
E. R. Sanchez,
Q. Ma,
W. Xu,
R. A. Marshall,
J. Bortnik,
P. Reyes,
R. Varney, and
S. Kaeppler
A Test of Energetic Particle Precipitation Models Using Simultaneous Incoherent Scatter Radar and Van Allen Probes Observations
Journal of Geophysical Research: Space Physics, 2022
pfisr
URL,
PDF,
DOI,
BibTex
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, 2022
risrn
risrc
URL,
DOI,
BibTex
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
pfisr
pfrr
URL,
DOI,
BibTex
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, 2021
pfisr
pfrr
URL,
DOI,
BibTex
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, 2020
pfisr
pfrr
URL,
DOI,
BibTex
C. Jin,
J. J. Hyun,
C. Eun-Jung,
Y. Jiwoong,
C. Byung-Kyu,
K. Myung-Jin,
Y. Hong-Suh,
R. Dong-Goo,
K. Sooyoung,
P. Jang-Hyun, and
C. Sungki
Space Surveillance Radar Observation Analysis: One-Year Tracking and Orbit Determination Results of KITSAT-1, "우리별 1호
Journal of Astronomy and Space Sciences, 2020
leolabs
BibTex
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
pfisr
URL,
DOI,
BibTex
M. Negale,
J. Holmes,
R. Parris,
D. Ober,
E. Dao,
R. Kelly,
J. V. Eccles,
J. Hines, and
T. Pedersen
Using Data Assimilation to Reconstruct High-Latitude Polar Cap Patches
Radio Science, 2020
risrn
URL,
DOI,
BibTex
Y. Nishimura,
L. R. Lyons,
C. Gabrielse,
N. Sivadas,
E. F. Donovan,
R. H. Varney,
V. Angelopoulos,
J. M. Weygand,
M. G. Conde, and
S. R. Zhang
Extreme Magnetosphere-Ionosphere-Thermosphere Responses to the 5 April 2010 Supersubstorm
Journal of Geophysical Research: Space Physics, 2020
pfisr
pfrr
URL,
DOI,
BibTex
2019
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, 2019
pfisr
URL,
DOI,
BibTex
M. S. Dhadly,
J. T. Emmert,
D. P. Drob,
M. G. Conde,
A. Aruliah,
E. Doornbos,
G. G. Shepherd,
Q. Wu,
J. J. Makela,
R. J. Niciejewski,
C. Lee,
G. Jee, and
A. J. Ridley
HL-TWiM Empirical Model of High-Latitude Upper Thermospheric Winds
Journal of Geophysical Research: Space Physics, 2019
rbo
URL,
DOI,
BibTex
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, 2019
risrc
URL,
DOI,
BibTex
2018
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, 2018
risrn
risrc
DOI,
BibTex
J. H. Hecht,
J. H. Clemmons,
M. G. Conde,
D. L. Hampton,
R. G. Michell,
D. Rowland,
R. F. Pfaff,
, and
R. L. Walterscheid
Observations of spatial variations in O/N2 during an auroral substorm using the multichannel downlooking camera on the VISIONS rocket
Journal of Geophysical Research: Space Physics, 2018
pfrr
DOI,
BibTex
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, 2018
pfrr
pfisr
DOI,
BibTex
D. R. Themens,
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
pfisr
risrn
DOI,
BibTex
C. C. Triplett,
J. Li,
R. L. Collins,
G. A. Lehmacher,
A. Barjatya,
D. C. Fritts,
B. Strelnikov,
F.-J. Luebken,
B. Thurairajah,
V. L. Harvey,
D. L. Hampton, and
R. H. Varney
Observations of Reduced Turbulence and Wave Activity in the Arctic Middle Atmosphere Following the January 2015 Sudden Stratospheric Warming
Journal of Geophysical Research: Atmospheres, 2018
pfisr
pfrr
PDF,
DOI,
BibTex
2017
M. Dhadly,
J. Emmert,
D. Drob,
M. Conde,
E. Doornbos,
G. Shepherd,
J. Makela,
Q. Wu,
R. Niciejewski, and
A. Ridley
Seasonal dependence of northern high-latitude upper thermospheric winds: A quiet time climatological study based on ground-based and space-based measurements
J. Geophys. Res. Space Physics, 2017
pfrr
rbo
DOI,
BibTex
D. Janches,
N. Swarnalingam,
J. D. Carrillo-Sanchez,
J. C. Gomez-Martin,
R. Marshall,
D. Nesvorny,
J. M. C. Plane,
W. Feng, and
P. Pokorny
Radar Detectability Studies of Slow and Small Zodiacal Dust Cloud Particles. III. The Role of Sodium and the Head Echo Size on the Probability of Detection
The Astrophysical Journal, 2017
pfisr
arecibo
DOI,
BibTex
J. Semeter,
S. Mrak,
M. Hirsch,
J. Swoboda,
H. Akbari,
G. Starr,
D. Hampton,
P. Erickson,
F. Lind,
A. Coster, and
V. Pankratius
GPS signal corruption by the discrete Aurora: Precise measurements from the Mahali experiment
Geophysical Research Letters, 2017
pfrr
DOI,
BibTex
2016
C. R. Clauer,
Z. Xu,
M. Maimaiti,
J. M. Ruohoniemi,
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
risrn
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DOI,
BibTex
P. A. Fernandes,
K. A. Lynch,
M. Zettergren,
D. L. Hampton,
T. A. Bekkeng,
I. J. Cohen,
M. Conde,
L. E. Fisher,
P. Horak,
M. R. Lessard,
R. J. Miceli,
R. G. Michell,
J. I. Moen, and
S. P. Powell
Measuring the seeds of ion outflow: Auroral sounding rocket observations of low-altitude ion heating and circulation
J. Geophys. Res., 2016
amisr
pfisr
pfrr
DOI,
BibTex
R. G. Gillies,
A. van Eyken,
E. Spanswick,
M. Nicolls,
J. Kelly,
M. Greffen,
D. Knudsen,
M. Connors,
M. Schutzer,
T. Valentic,
M. Malone,
J. Buonocore,
J.-P. St.-Maurice, and
E. Donovan
First observations from the RISR-C incoherent scatter radar
Radio Science, 2016
rbo
risrn
URL,
DOI,
BibTex
L. R. Lyons,
B. Gallardo-Lacourt,
S. Zou,
J. M. Weygand,
Y. Nishimura,
W. Li,
M. Gkioulidou,
V. Angelopoulos,
E. F. Donovan,
J. M. Ruohoniemi,
B. J. Anderson,
S. G. Shepherd, and
N. Nishitani
The 17 March 2013 storm: Synergy of observations related to electric field modes and their ionospheric and magnetospheric Effects.
J. Geophys. Res. Space Physics, 2016
pfisr
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T. E. Moore,
K. S. Brenneman,
C. R. Chappell,
J. H. Clemmons,
G. A. Collinson,
C. Cully,
E. Donovan,
G. D. Earle,
D. J. Gershman,
R. A. Heelis,
L. M. Kistler,
L. Kepko,
G. Khazanov,
D. J. Knudsen,
M. Lessard,
E. A. MacDonald,
M. J. Nicolls,
C. J. Pollock,
R. Pfaff,
D. E. Rowland,
E. Sanchez,
R. W. Schunk,
J. Semeter,
R. J. Stangeway, and
J. Thayer
Future Atmosphere-Ionosphere-Magnetosphere Coupling Study Requirements
Magnetosphere-Ionosphere Coupling in the Solar System,
American Geophysical Union,
2016
amisr
misc
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Y. Shen,
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
risrn
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C. Yue,
W. Li,
Y. Nishimura,
Q. Zong,
Q. Ma,
J. Bortnik,
R. M. Thorne,
G. D. Reeves,
H. E. Spence,
C. A. Kletzing,
J. R. Wygant, and
M. J. Nicolls
Rapid enhancement of low-energy (<100 eV) ion flux in response to interplanetary shocks based on two Van Allen Probes case studies: Implications for source regions and heating mechanisms.
J. Geophys. Res. Space Physics, 2016
pfisr
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2015
C. Goenka,
J. Semeter,
J. Noto,
J. Baumgardner,
J. Riccobono,
M. Migliozzi,
H. Dahlgren,
R. Marshall,
S. Kapali,
M. Hirsch,
D. Hampton, and
H. Akbari
LiCHI - Liquid Crystal Hyperspectral Imager for simultaneous multispectral imaging in aeronomy
Opt. Express, 2015
pfrr
DOI,
BibTex
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
amisr
jro-14
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BibTex
J. Liu,
T. Nakamura,
L. Liu,
W. Wang,
N. Balan,
T. Nishiyama,
M. R. Hairston, and
E. G. Thomas
Formation of polar ionospheric tongue of ionization during minor geomagnetic disturbed conditions
J. Geophys. Res., 2015
amisr
pfisr
pfrr
PDF,
DOI,
BibTex
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
amisr
pfisr
pfrr
PDF,
DOI,
BibTex
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
amisr
pfisr
pfrr
PDF,
DOI,
BibTex
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
pfisr
risrn
pfrr
rbo
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BibTex
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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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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2014
H. Dahlgren,
G. Perry,
J.-P. St.-Maurice,
T. Sundberg,
K. Hosokawa,
J. L. Semeter,
M. J. Nicolls, and
K. Shiokawa
3D imaging reveals electrodynamics of polar cap aurora
Astronomy & Geophysics, 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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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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2013
E. Sergeev,
S. Grach,
A. Shindin,
E. Mishin,
P. Bernhardt,
S. Briczinski,
B. Isham,
M. Broughton,
J. LaBelle, and
B. Watkins
Artificial Ionospheric Layers during Pump Frequency Stepping Near the 4th Gyroharmonic at HAARP
Phys. Rev. Lett., 2013
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T. Valentic,
J. Buonocore,
M. Cousins,
C. Heinselman,
J. Jorgensen,
J. Kelly,
M. Malone,
M. Nicolls, and
A. van Eyken
AMISR: The Advanced Modular Incoherent Scatter Radar
2013 IEEE International Symposium on Phased Array Systems and Technology, 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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2012
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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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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pfisr
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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. 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. 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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P. T. Jayachandran,
K. Hosokawa,
K. Shiokawa,
Y. Otsuka,
C. Watson,
S. C. Mushini,
J. W. Macdougall,
P. Prikryl,
R. Chadwick, and
T. D. Kelly
GPS total electron content variations associated with poleward moving Sun-aligned arcs
J. Geophys. Res., 2012
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K. A. Lynch,
D. Hampton,
M. Mella,
B. Zhang,
H. Dahlgren,
M. Disbrow,
P. M. Kintner,
M. Lessard,
E. Lundberg, and
H. C. Stenbaek-Nielsen
Structure and dynamics of the nightside poleward boundary: Sounding rocket and ground-based observations of auroral electron precipitation in a rayed curtain
J. Geophys. Res., 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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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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2010
J. A. Cohen,
R. Pradipta,
L. M. Burton,
A. Labno,
M. C. Lee,
B. J. Watkins,
C. Fallen,
S. P. Kuo,
W. J. Burke,
D. Mabius, and
B. Z. See
Generation of ionospheric ducts by the HAARP HF heater
Physica Scripta, 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. 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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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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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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2009
B. Gustavsson,
R. Newsome,
T. B. Leyser,
M. J. Kosch,
L. Norin,
M. McCarrick,
T. Pedersen, and
B. J. Watkins
First observations of X-mode suppression of O-mode HF enhancements at 6300 A
Geophys. Res. Lett., 2009
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S. L. Jones,
M. R. Lessard,
P. A. Fernandes,
D. Lummerzheim,
J. L. Semeter,
C. J. Heinselman,
K. A. Lynch,
R. G. Michell,
P. M. Kintner,
H. C. Stenbaek-Nielsen, and
K. Asamura
PFISR and ROPA observations of pulsating aurora
J. Atmos Solar-Terr. Phys., 2009
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M. J. Kosch,
B. Gustavsson,
C. Heinselman,
T. Pedersen,
M. T. Rietveld,
J. Spaleta,
A. Wong,
W. Wang,
C. Mutiso,
B. Bristow, and
J. Hughes
First incoherent scatter radar observations of ionospheric heating on the second electron gyro-harmonic
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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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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L. Sangalli,
D. J. Knudsen,
M. F. Larsen,
T. Zhan,
R. F. Pfaff, and
D. Rowland
Rocket-based measurements of ion velocity, neutral wind, and electric field in the collisional transition region of the auroral ionosphere
J. Geophys. Res., 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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2008
A. Belova,
S. Kirkwood,
D. Murtagh,
N. Mitchell,
W. Singer, and
W. Hocking
Five-day planetary waves in the middle atmosphere from Odin satellite data and ground-based instruments in Northern Hemisphere summer 2003, 2004, 2005 and 2007
Ann. Geophys., 2008
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L. M. Burton,
J. A. Cohen,
R. Pradipta,
A. Labno,
M. C. Lee,
O. Batishchev,
D. L. Rokusek,
S. P. Kuo,
B. J. Watkins, and
S. Oyama
Excitation and diagnosis of cascading Langmuir waves in ionospheric plasmas at Gakona, Alaska
Physica Scripta, 2008
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B. Gustavsson,
M. Kosch,
A. Wong,
T. Pedersen,
C. Heinselman,
C. Mutiso,
B. Bristow,
J. Hughes, and
W. Wang
First estimates of volume distribution of HF-pump enhanced emissions at 6300 and 5577 Å: a comparison between observations and theory
Ann. Geophys., 2008
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D. Pancheva,
P. Mukhtarov,
N. J. Mitchell,
B. Andonov,
E. Merzlyakov,
W. Singer,
Y. Murayama,
S. Kawamura,
J. Xiong,
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W. Hocking,
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C. Meek, and
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Latitudinal wave coupling of the stratosphere and mesosphere during the major stratospheric warming in 2003/2004
Ann. Geophys., 2008
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2007
D. L. Hysell,
J. Drexler,
E. B. Shume,
J. L. Chau,
D. E. Scipion,
M. Vlasov,
R. Cuevas, and
C. Heinselman
Combined radar observations of equatorial electrojet irregularities at Jicamarca
Ann. Geophys., 2007
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M. J. Kosch,
T. Pedersen,
E. Mishin,
S. Oyama,
J. Hughes,
A. Senior,
B. Watkins, and
B. Bristow
Coordinated optical and radar observations of ionospheric pumping for a frequency pass through the second electron gyroharmonic at HAARP
J. Geophys. Res., 2007
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M. J. Kosch,
T. Pedersen,
E. Mishin,
M. Starks,
E. Gerken-Kendall,
D. Sentman,
S. Oyama, and
B. Watkins
Temporal evolution of pump beam self-focusing at the High-Frequency Active Auroral Research Program
J. Geophys. Res., 2007
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P. Mukhtarov,
D. Pancheva,
B. Andonov,
N. J. Mitchell,
E. Merzlyakov,
W. Singer,
W. Hocking,
C. Meek,
A. Manson, and
Y. Murayama
Large-scale thermodynamics of the stratosphere and mesosphere during the major stratospheric warming in 2003/2004
J. Atmos. Solar-Terr. Phys., 2007
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2006
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2004
D. Pancheva,
N. J. Mitchell,
A. H. Manson,
C. E. Meek,
C. Jacobi,
Y. Portnyagin,
E. Merzlyakov,
W. K. Hocking,
J. Macdougall,
W. Singer,
K. Igarashi,
R. R. Clark,
D. M. Riggin,
S. J. Franke,
D. Kurschner,
A. N. Fahrutdinova,
A. M. Stepanov,
B. L. Kashcheyev,
A. N. Oleynikov, and
H. G. Muller
Variability of the quasi-2-day wave observed in the MLT region during the PSMOS campaign of June-August 1999
J. Atmos. Solar-Terr. Phys., 2004
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Y. Portnyagin,
T. Solovjova,
E. Merzlyakov,
J. Forbes,
S. Palo,
D. Ortland,
W. Hocking,
J. Macdougall,
T. Thayaparan,
A. Manson,
C. Meek,
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W. Singer,
N. Mitchell,
D. Pancheva,
K. Igarashi,
Y. Murayama,
C. Jacobi,
D. Kuerschner,
A. Fahrutdinova,
D. Korotyshkin,
R. Clark,
M. Taylor,
S. Franke,
D. Fritts,
T. Tsuda,
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D. Murphy,
D. Riggin,
T. Aso, and
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Mesosphere/lower thermosphere prevailing wind model
Adv. Space Res., 2004
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Y. Portnyagin,
T. Solovjova,
N. Makarov,
E. Merzlyakov,
A. Manson,
C. Meek,
W. Hocking,
N. Mitchell,
D. Pancheva,
P. Hoffmann,
W. Singer,
Y. Murayama,
K. Igarashi,
J. Forbes,
S. Palo,
C. Hall, and
S. Nozawa
Monthly mean climatology of the prevailing winds and tides in the Arctic mesosphere/lower thermosphere
Ann. Geophys., 2004
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