@article{Negale2018b, author = "M. R. Negale and M. J. Taylor and M. J. Nicolls and S. L. Vadas and K. Nielsen and C. J. Heinselman", title = "Seasonal propagation characteristics of MSTIDs observed at high latitudes over Central Alaska using the Poker Flat Incoherent Scatter Radar", year = 2018 , journal = "Journal of Geophysical Research: Space Physics", publisher = "American Geophysical Union", volume = 123, keywords = "pfisr", doi = "10.1029/2017JA024876" } @article{Ruohoniemi2017a, author = "M. M. J. Ruohoniemi and J. Baker and C. Clauer and M. Nicolls and M. Hairston", title = "RISR-N observations of the IMF By influence on reverse convection during extreme northward IMF", year = 2017 , journal = "J. Geophys. Res. Space Physics", number = 122, keywords = "risrn", doi = "10.1002/2016JA023612" } @article{Zou2017a, author = "S. Zou and A. Ridley and X. Jia and E. Boyd and M. Nicolls and A. Coster and E. Thomas and J. M. Ruohoniemi", title = "PFISR observation of intense ion upflow fluxes associated with an SED during the 1 June 2013 geomagnetic storm", year = 2017 , journal = "J. Geophys. Res. Space Physics", publisher = "American Geophysical Union", number = 122, keywords = "amisr, pfisr, pfrr", doi = "10.1002/2016JA023697" } @inbook{Moore2016a, author = "T. E. Moore and K. S. Brenneman and C. R. Chappell and J. H. Clemmons and G. A. Collinson and C. Cully and E. Donovan and G. D. Earle and D. J. Gershman and R. A. Heelis and L. M. Kistler and L. Kepko and G. Khazanov and D. J. Knudsen and M. Lessard and E. A. MacDonald and M. J. Nicolls and C. J. Pollock and R. Pfaff and D. E. Rowland and E. Sanchez and R. W. Schunk and J. Semeter and R. J. Stangeway and J. Thayer", title = "Future Atmosphere-Ionosphere-Magnetosphere Coupling Study Requirements", year = 2016 , booktitle = "Magnetosphere-Ionosphere Coupling in the Solar System", publisher = "American Geophysical Union", month = "Oct", keywords = "amisr, misc", url = "https://agupubs.onlinelibrary.wiley.com/doi/10.1002/9781119066880.ch28" } @article{Shen2016a, author = "Y. Shen and D. J. Knudsen and J. K. Burchill and A. Howarth and A. Yau and R. J. Redmon and D. M. Miles and R. H. Varney and M. J. Nicolls", title = "Strong ambipolar-driven ion upflow within the cleft ion fountain during low geomagnetic activity", year = 2016 , journal = "J. Geophys. Res. Space Physics", number = 121, keywords = "risrn", doi = "10.1002/2016JA022532", url = "https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016JA022532" } @article{Gillies2016a, author = "R. G. Gillies and A. van Eyken and E. Spanswick and M. Nicolls and J. Kelly and M. Greffen and D. Knudsen and M. Connors and M. Schutzer and T. Valentic and M. Malone and J. Buonocore and J.-P. St.-Maurice and E. Donovan", title = "First observations from the RISR-C incoherent scatter radar", year = 2016 , journal = "Radio Science", publisher = "American Geophysical Union", volume = 51, keywords = "rbo, risrn", doi = "10.1002/2016RS006062", url = "https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1002/2016RS006062" } @article{Clauer2016a, author = "C. R. Clauer and Z. Xu and M. Maimaiti and J. M. Ruohoniemi and W. Scales and M. D. Hartinger and M. J. Nicolls and S. Kaeppler and F. D. Wilder and R. E. Lopez", title = "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", year = 2016 , journal = "J. Geophys. Res. Space Physics", volume = 121, keywords = "risrn", doi = "10.1002/2016JA022557", url = "http://onlinelibrary.wiley.com/doi/10.1002/2016JA022557/abstract" } @article{Zhang2016a, author = "S.-R. Zhang and J. M. Holt and P. J. Erickson and L. P. Goncharenko and M. J. Nicolls and M. McCready and J. Kelly", title = "Ionospheric ion temperature climate and upper atmospheric long-term cooling", year = 2016 , journal = "J. Geophys. Res. Space Physics", publisher = "American Geophysical Union", number = 121, keywords = "pfisr, sondrestrom", doi = "10.1002/2016JA022971", url = "https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016JA022971" } @article{Yue2016a, author = "C. Yue and W. Li and Y. Nishimura and Q. Zong and Q. Ma and J. Bortnik and R. M. Thorne and G. D. Reeves and H. E. Spence and C. A. Kletzing and J. R. Wygant and M. J. Nicolls", title = "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.", year = 2016 , journal = "J. Geophys. Res. Space Physics", number = 121, keywords = "pfisr", doi = "10.1002/2016JA022808", url = "https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016JA022808" } @article{Zou2016a, author = "Y. Zou and Y. Nishimura and J. K. Burchill and D. J. Knudsen and L. R. Lyons and K. Shiokawa and S. Buchert and S. Chen and M. J. Nicolls and M. J. Ruohoniemi and K. A. McWilliams and N. Nishitani", title = "Localized field-aligned currents in the polar cap associated with airglow patches", year = 2016 , journal = "J. Geophys. Res. Space Physics", publisher = "American Geophysical Union", number = 121, keywords = "risrn", doi = "10.1002/2016JA022665" } @inproceedings{Nicolls2015a, author = "M. J. Nicolls", title = " Space Debris Measurements using the Advanced Modular Incoherent Scatter Radar", year = 2015 , publisher = "AMOS", keywords = "amisr, pfisr, risrn" } @article{Kaeppler2015a, author = "S. R. Kaeppler and D. L. Hampton and M. J. Nicolls and A. Strømme and S. C. Solomon and J. H. Hecht and M. G. Conde", title = "An investigation comparing ground-based techniques that quantify auroral electron flux and conductance", year = 2015 , journal = "J. Geophys. Res. Space Physics", volume = 120, pages = "9038-9056", keywords = "amisr, pfisr, pfrr", doi = "10.1002/2015JA021396" } @article{Perry2015b, author = "G. W. Perry and H. Dahlgren and M. J. Nicolls and M. Zettergren and J.-P. St.-Maurice and J. L. Semeter and T. Sundberg and K. Hosokawa and K. Shiokawa and S. Chen", title = "Spatiotemporally resolved electrodynamic properties of a Sun-aligned arc over Resolute Bay", year = 2015 , journal = "J. Geophys. Res.", volume = 120, pages = "9977-9987", keywords = "amisr, risrn, rbo", doi = "10.1002/2015JA021790" } @article{Hickey2015a, author = "D. A. Hickey and C. R. Martinis and F. S. Rodrigues and R. H. Varney and M. A. Milla and M. J. Nicolls and A. Strømme and J. F. Arratia", title = "Concurrent observations at the magnetic equator of small-scale irregularities and large-scale depletions associated with equatorial spread F", year = 2015 , journal = "J. Geophys. Res.", volume = 120, pages = "10883-10896", keywords = "amisr, jro-14", doi = "10.1002/2015JA021991" } @article{Makarevich2015b, author = "R. A. Makarevich and L. J. Lamarche and M. J. Nicolls", title = "Resolute Bay Incoherent Scatter Radar observations of plasma structures in the vicinity of polar holes", year = 2015 , journal = "J. Geophys. Res.", volume = 120, number = 9, pages = "7970-7986", keywords = "amisr, risrn", doi = "10.1002/2015JA021443" } @article{Rodrigues.2015a, author = "F. S. Rodrigues. and M. J. Nicolls and M. A. Milla and J. M. Smith and R. H. Varney and A. Strømme and C. Martinis and J. F. Arratia", title = "AMISR-14: Observations of equatorial spread F", year = 2015 , journal = "Geophys. Res. Lett.", volume = 42, pages = "5100-5108", keywords = "amisr, jro-14", doi = "10.1002/2015GL064574" } @article{Lynch2015a, author = "K. A. Lynch and D. L. Hampton and M. Zettergren and T. A. Bekkeng and M. Conde and P. A. Fernandes and P. Horak and M. Lessard and R. Miceli and R. Michell and J. Moen and M. Nicolls and S. P. Powell and M. Samara", title = "MICA sounding rocket observations of conductivity-gradient-generated auroral ionospheric responses: Small-scale structure with large-scale drivers", year = 2015 , journal = "J. Geophys. Res. Space Physics", volume = 120, pages = "9661-9682", keywords = "amisr, pfisr, pfrr", doi = "10.1002/2014JA020860" } @article{Lyons2015b, author = "L. R. Lyons and Y. Nishimura and B. Gallardo-Lacourt and M. J. Nicolls and S. Chen and D. L. Hampton and W. A. Bristow and J. M. Ruohoniemi and N. Nishitani and E. F. Donovan and V. Angelopoulos", title = "Azimuthal flow bursts in the Inner Plasma Sheet and Possible Connection with SAPS and Plasma Sheet Earthward Flow Bursts", year = 2015 , journal = "J. Geophys. Res.", volume = 120, pages = "5009-5021", keywords = "amisr, pfisr, pfrr", doi = "10.1002/2015JA021023" } @article{Akbari2015a, author = "H. Akbari and J. L. Semeter and M. A. Hirsch and P. Guio and M. J. Nicolls", title = "Evidence for generation of unstable suprathermal electron population in the auroral F-region", year = 2015 , journal = "Geophys. Res. Lett.", publisher = "Geophys. Res. Lett.", volume = 42, pages = "185-192", keywords = "amisr, pfisr", doi = "10.1002/2014GL062598" } @article{Liuzzo2015a, author = "L. R. Liuzzo and A. J. Ridley and N. J. Perlongo and E. J. Mitchell and M. Conde and D. L. Hampton and W. A. Bristow and M. J. Nicolls", title = "High-latitude ionospheric drivers and their effects on wind patterns in the thermosphere", year = 2015 , journal = "J. Geophys. Res.", volume = 120, pages = "715-735", keywords = "amisr, pfisr, pfrr" } @inbook{Lyons2015a, author = "L. R. Lyons and Y. Nishimura and B. Gallardo-Lacourt and Y. Zou and E. F. Donovan and S. Mende and V. Angelopoulos and J. M. Ruohoniemi and K. A. McWilliams and D. L. Hampton and M. J. Nicolls", title = "Dynamics Related to Plasmasheet Flow Bursts as Revealed from the Aurora", year = 2015 , booktitle = "Auroral Dynamics and Space Weather (eds. Y. Zhang and L. J. Paxton)", publisher = "John Wiley & Sons", keywords = "pfisr, risrn, pfrr, rbo", doi = "10.1002/9781118978719.ch8" } @article{Janches2014a, author = "D. Janches and N. Swarnalingam and J. Plane and D. Nesvorny and W. Feng and D. Vokrouhlicky and M. Nicolls", title = "Radar detectability studies of slow and small Zodiacal Dust Cloud Particles: II. A study of three radars with di erent sensitivity", year = 2014 , journal = "The Astrophysical Journal", volume = 796, number = 41, keywords = "amisr, pfisr", doi = "10.1088/0004-637X/796/1/41" } @article{Nicolls2014b, author = "M. J. Nicolls and H. Bahcivan and I. Haggstrom and M. Rietveld", title = "Direct Measurement of Lower-Thermospheric Neutral Density using Multi-Frequency Incoherent Scattering", year = 2014 , journal = "Geophys. Res. Lett.", volume = 41, number = 2, pages = "8147-8154", keywords = "amisr", doi = " 10.1002/2014GL062204" } @article{Nicolls2014a, author = "M. J. Nicolls and R. Cosgrove and H. Bahcivan", title = "Estimating the vector electric field using monostatic, multibeam incoherent scatter radar measurements", year = 2014 , journal = "Radio Sci.", volume = 49, pages = "1124-1139", keywords = "amisr, pfisr, risrn", doi = "10.1002/2014RS005519" } @article{Dahlgren2014a, author = "H. Dahlgren and G. Perry and J.-P. St.-Maurice and T. Sundberg and K. Hosokawa and J. L. Semeter and M. J. Nicolls and K. Shiokawa", title = "3D imaging reveals electrodynamics of polar cap aurora", year = 2014 , journal = "Astronomy & Geophysics", volume = 55, keywords = "amisr, risrn, rbo", doi = "10.1093/astrogeo/atu215 " } @inproceedings{Oltrogge2014a, author = "D. L. Oltrogge and P. North and M. J. Nicolls", title = "MULTI-PHENOMENOLOGY OBSERVATION NETWORK EVALUATION TOOL (MONET)", year = 2014 , publisher = "AMOS", keywords = "amisr, pfisr" } @article{Richards2014a, author = "P. G. Richards and M. J. Nicolls and J.-P. St.-Maurice and L. Goodwin and J. M. Ruohoniemi", title = "Investigation of sudden electron density depletions observed in the dusk sector by the Poker Flat, Alaska incoherent scatter radar in summer", year = 2014 , journal = "J. Geophys. Res.", volume = 119, pages = "10608-10620", keywords = "amisr, pfisr, pfrr", doi = "10.1002/2014JA020541" } @article{Zou2014a, author = "S. Zou and M. B. Moldwin and A. J. Ridley and M. J. Nicolls and A. J. Coster and E. G. Thomas and J. M. Ruohoniemi", title = "On the generation/decay of the storm-enhanced density plumes: Role of the convection flow and field-aligned ion flow", year = 2014 , journal = "J. Geophys. Res.", keywords = "amisr, pfisr, pfrr", doi = "10.1002/2014JA020408" } @article{Kaeppler2014a, author = "S. R. Kaeppler and M. J. Nicolls and A. Strømme and C. A. Kletzing and S. R. Bounds", title = "Observations in the E-region ionosphere of kappa distribution functions associated with precipitating auroral electrons and discrete aurorae", year = 2014 , journal = "J. Geophys. Res.", volume = 119, pages = "10164-10183", keywords = "amisr, pfisr, pfrr", doi = "10.1002/2014JA020356" } @article{Themens2014a, author = "D. Themens and P. Jayachandran and M. J. Nicolls and J. W. MacDougall", title = "A Top to Bottom Evaluation of IRI-2007 within the Polar Cap", year = 2014 , journal = "J. Geophys. Res.", volume = 119, keywords = "amisr, risrn", doi = "10.1002/2014JA020052" } @article{Nishimura2014a, author = "Y. Nishimura and L. R. Lyons and M. J. Nicolls and D. L. Hampton and R. G. Michell and M. Samara and W. A. Bristow and E. F. Donovan and E. Spanswick and V. Angelopoulos and S. B. Mende", title = "Coordinated ionospheric observations indicating coupling between pre-onset flow bursts and waves that leads to substorm onset", year = 2014 , journal = "J. Geophys. Res.", volume = 119, pages = "3333-3344", keywords = "amisr, pfisr, pfrr", doi = "10.1002/2014JA019773" } @article{Sojka2014a, author = "J. J. Sojka and R. W. Schunk and M. J. Nicolls", title = "Ionospheric Ion Temperature Forecasting in Multiples of 27 Days", year = 2014 , journal = "Space Weather", volume = 12, pages = "148-160", keywords = "amisr, pfisr", doi = "10.1002/2013SW001012" } @article{Zettergren2014a, author = "M. Zettergren and K. Lynch and D. Hampton and M. Nicolls and B. Wright and M. Conde and J. Moen and M. Lessard and R. Miceli and S. Powell", title = "Auroral ionospheric F region density cavity formation and evolution: MICA campaign results", year = 2014 , journal = "J. Geophys. Res.", volume = 119, pages = "3162-3178", keywords = "amisr, pfisr, pfrr", doi = "10.1002/2013JA019583" } @article{Goodwin2014a, author = "L. Goodwin and J.-P. St.-Maurice and P. Richards and M. Hairston and M. Nicolls", title = "F region dusk ion temperature spikes at the equatorward edge of the high latitude convection pattern", year = 2014 , journal = "Geophys. Res. Lett.", volume = 41, pages = "300-307", keywords = "amisr, pfisr", doi = "10.1002/2013GL058442" } @article{Varney2014a, author = "R. H. Varney and S. C. Solomon and M. J. Nicolls", title = "Heating of the sunlit polar cap ionosphere by reflected photoelectrons", year = 2014 , journal = "J. Geophys. Res.", volume = 119, pages = "8660-8684", keywords = "amisr, risrn", doi = "10.1002/2013JA019378" } @article{Hosokawa2014a, author = "K. Hosokawa and S. Taguchi and K. Shiokawa and Y. Otsuka and Y. Ogawa and M. Nicolls", title = "Global imaging of polar cap patches with dual airglow imagers", year = 2014 , journal = "Geophys. Res. Lett.", volume = 41, pages = "1-6", keywords = "amisr, risrn, rbo", doi = "10.1002/2013GL058748" } @article{Bahcivan2014a, author = "H. Bahcivan and J. W. Cutler and J. C. Springmann and R. Doe and M. J. Nicolls", title = "Magnetic aspect sensitivity of high-latitude E region irregularities measured by the RAX CubeSat", year = 2014 , journal = "J. Geophys. Res.", volume = 119, pages = "1233-1249", keywords = "amisr, pfisr", doi = "10.1002/2013JA019547" } @inproceedings{Valentic2013a, author = "T. Valentic and J. Buonocore and M. Cousins and C. Heinselman and J. Jorgensen and J. Kelly and M. Malone and M. Nicolls and A. van Eyken", title = "AMISR: The Advanced Modular Incoherent Scatter Radar", year = 2013 , journal = "2013 IEEE International Symposium on Phased Array Systems and Technology", keywords = "amisr" } @article{Anderson2013a, author = "C. Anderson and M. J. Kosch and M. J. Nicolls and M. Conde", title = "Ion-neutral coupling in Earth's thermosphere, estimated from concurrent radar and optical observations over Alaska", year = 2013 , journal = "J. Atmos. Solar-Terr. Phys.", pages = "313-324", keywords = "amisr, pfisr, pfrr", doi = "10.1016/j.jastp.2013.04.005" } @article{Makarevich2013b, author = "R. A. Makarevich and A. V. Koustov and M. J. Nicolls", title = "Poker Flat Incoherent Scatter Radar observations of anomalous electron heating in the E-region", year = 2013 , journal = "Ann. Geophys.", volume = 31, pages = "1163-1176", keywords = "amisr, pfisr", doi = "10.5194/angeo-31-1163-2013" } @article{Zou2013b, author = "S. Zou and A. Ridley and M. Moldwin and M. Nicolls and A. Coster and M. Ruohoniemi", title = "Multi-instrument Observations of Storm Enhanced Density (SED) during Oct. 24-25 2011 Storm: Implications for SED Formation Processes", year = 2013 , journal = "J. Geophys. Res.", volume = 118, pages = "7798-7809", keywords = "amisr, pfisr", doi = "10.1002/2013JA018860" } @article{Makarevich2013a, author = "R. A. Makarevich and M. J. Nicolls", title = "Statistical comparison of TEC derived from GPS and ISR observations at high latitudes", year = 2013 , journal = "Radio Sci.", volume = 48, pages = "441-452", keywords = "amisr, pfisr", doi = "10.1002/rds.20055" } @article{Akbari2013a, author = "H. Akbari and J. L. Semeter and M. J. Nicolls and M. Broughton and J. W. LaBelle", title = "On the localization of auroral Langmuir turbulence in thin layers", year = 2013 , journal = "J. Geophys. Res.", volume = 118, pages = "3576-3583", keywords = "amisr, pfisr, pfrr", doi = "10.1002/jgra.50314" } @article{Zou2013a, author = "S. Zou and M. B. Moldwin and M. J. Nicolls and A. J. Ridley and A. J. Coster and E. Yizengaw and L. R. Lyons and E. F. Donovan", title = "Electrodynamics of the high-latitude trough: its relationship with convection flows and field-aligned currents", year = 2013 , journal = "J. Geophys. Res.", volume = 118, pages = "2565-2572", keywords = "amisr, pfisr, pfrr", doi = "10.1002/jgra.50120" } @article{Bahcivan2013b, author = "H. Bahcivan and M. J. Nicolls and G. Perry", title = "Comparison of SuperDARN irregularity drift measurements and F-region ion velocities from the Resolute Bay ISR", year = 2013 , journal = "J. Atmos. Solar-Terr. Phys.", pages = "325-331", keywords = "amisr, risrn", doi = "10.1016/j.jastp.2013.02.002" } @article{Fentzke2012a, author = "J. T. Fentzke and V. Hsu and C. G. M. Brum and I. Strelnikova and M. Rapp and M. Nicolls", title = "D region meteoric smoke and neutral temperature retrieval using the poker flat incoherent scatter radar", year = 2012 , journal = "Geophys. Res. Lett.", volume = 39, number = 21, keywords = "amisr, pfisr", doi = "10.1029/2012GL053841" } @article{Hysell2012a, author = "D. Hysell and R. Miceli and J. Munk and D. Hampton and C. Heinselman and M. Nicolls and S. Powell and K. Lynch and M. Lessard", title = "Comparing VHF coherent scatter from the radar aurora with incoherent scatter and all-sky auroral imagery", year = 2012 , journal = "J. Geophys. Res.", volume = 117, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2012JA018010" } @article{Themens2012a, author = "D. R. Themens and P. T. Jayachandran and R. B. Langley and J. W. Macdougall and M. J. Nicolls", title = "Determining receiver biases in GPS-derived total electron content in the auroral oval and polar cap region using ionosonde measurements", year = 2012 , journal = "GPS Solutions", keywords = "amisr, risrn", doi = "10.1007/s10291-012-0284-6" } @article{Bahcivan2012a, author = "H. Bahcivan and J. W. Cutler and M. Bennett and B. Kempke and J. C. Springmann and J. Buonocore and M. Nicolls and R. Doe", title = "First measurements of radar coherent scatter by the Radio Aurora Explorer CubeSat", year = 2012 , journal = "Geophys. Res. Lett.", volume = 39, keywords = "amisr, pfisr", doi = "10.1029/2012GL052249" } @article{Dahlgren2012b, author = "H. Dahlgren and G. W. Perry and J. L. Semeter and J.-P. St.-Maurice and K. Hosokawa and M. J. Nicolls and M. Greffen and K. Shiokawa and C. Heinselman", title = "Space-time variability of polar cap patches: Direct evidence for internal plasma structuring", year = 2012 , journal = "J. Geophys. Res.", volume = 117, keywords = "amisr, risrn", doi = "10.1029/2012JA017961" } @article{Dahlgren2012a, author = "H. Dahlgren and J. L. Semeter and K. Hosokawa and M. J. Nicolls and T. W. Butler and M. G. Johnsen and K. Shiokawa and C. Heinselman", title = "Direct three-dimensional imaging of polar ionospheric structures with the Resolute Bay Incoherent Scatter Radar", year = 2012 , journal = "Geophys. Res. Lett.", volume = 39, keywords = "amisr, risrn, rbo", doi = "10.1029/2012GL050895" } @article{Vadas2012a, author = "S. L. Vadas and M. J. Nicolls", title = "The phases and amplitudes of gravity waves propagating and dissipating in the thermosphere: Theory", year = 2012 , journal = "J. Geophys. Res.", volume = 117, keywords = "amisr, pfisr", doi = "10.1029/2011JA017426" } @article{Nicolls2012b, author = "M. J. Nicolls and S. L. Vadas and J. W. Meriwether and M. G. Conde and D. Hampton", title = "The phases and amplitudes of gravity waves propagating and dissipating in the thermosphere: Application to measurements over Alaska", year = 2012 , journal = "J. Geophys. Res.", volume = 117, keywords = "amisr, pfisr", doi = "10.1029/2012JA017542" } @article{Nicolls2012a, author = "M. J. Nicolls and D. C. Fritts and D. Janches and C. J. Heinselman", title = "Momentum flux determination using the multi-beam Poker Flat Incoherent Scatter Radar", year = 2012 , journal = "Ann. Geophys.", volume = 30, number = 6, pages = "945-962", keywords = "amisr, pfisr", doi = "10.5194/angeo-30-945-2012" } @article{Burchill2012a, author = "J. K. Burchill and J. H. Clemmons and D. J. Knudsen and M. Larsen and M. J. Nicolls and R. F. Pfaff and D. Rowland and L. Sangalli", title = "High-latitude E region ionosphere-thermosphere coupling: A comparative study using in situ and incoherent scatter radar observations", year = 2012 , journal = "J. Geophys. Res.", volume = 117, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2011JA017175" } @article{Akbari2012a, author = "H. Akbari and J. L. Semeter and H. Dahlgren and M. Diaz and M. Zettergren and A. Strømme and M. J. Nicolls and C. Heinselman", title = "Anomalous ISR echoes preceding auroral breakup: Evidence for strong Langmuir turbulence", year = 2012 , journal = "Geophys. Res. Lett.", volume = 39, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2011GL050288" } @article{Liang2011a, author = "J. Liang and E. Spanswick and M. J. Nicolls and E. F. Donovan and D. Lummerzheim and W. W. Liu", title = "Multi-instrument observations of soft electron precipitation and its association with magnetospheric flows", year = 2011 , journal = "J. Geophys. Res.", volume = 116, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2010JA015867" } @article{Sojka2011a, author = "J. J. Sojka and M. Nicolls and A. van Eyken and C. Heinselman and D. Bilitza", title = "24/7 Solar minimum polar cap and auroral ion temperature observations", year = 2011 , journal = "Advances in Space Research", volume = 48, keywords = "amisr, pfisr", doi = "10.1016/j.asr.2011.03.005" } @article{Zou2011a, author = "S. Zou and M. B. Moldwin and A. Coster and L. R. Lyons and M. J. Nicolls", title = "GPS TEC observations of dynamics of the mid-latitude trough during substorms", year = 2011 , journal = "Geophys. Res. Lett.", volume = 38, keywords = "amisr, pfisr", doi = "10.1029/2011GL048178" } @article{Varney2011a, author = "R. H. Varney and M. C. Kelley and M. J. Nicolls and C. J. Heinselman and R. L. Collins", title = "The electron density dependence of polar mesospheric summer echoes", year = 2011 , journal = "J Atmos Sol-Terr Phy", volume = 73, keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2010.07.020" } @article{Mella2011a, author = "M. R. Mella and K. A. Lynch and D. L. Hampton and H. Dahlgren and P. M. Kintner and M. Lessard and D. Lummerzheim and E. T. Lundberg and M. J. Nicolls and H. C. Stenbaek-Nielsen", title = "Sounding rocket study of two sequential auroral poleward boundary intensifications", year = 2011 , journal = "J. Geophys. Res.", volume = 116, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2011JA016428" } @article{Lyons2011a, author = "L. R. Lyons and Y. Nishimura and H.-J. Kim and E. Donovan and V. Angelopoulos and G. Sofko and M. Nicolls and C. Heinselman and J. M. Ruohoniemi and N. Nishitani", title = "Possible connection of polar cap flows to pre- and post-substorm onset PBIs and streamers", year = 2011 , journal = "J. Geophys. Res.", volume = 116, keywords = "amisr, risrn", doi = "10.1029/2011JA016850" } @article{Kelley2010a, author = "M. C. Kelley and M. J. Nicolls and R. H. Varney and R. L. Collins and R. Doe and J. M. C. Plane and J. Thayer and M. Taylor and B. Thurairajah and K. Mizutani", title = "Radar, lidar, and optical observations in the polar summer mesosphere shortly after a space shuttle launch", year = 2010 , journal = "J. Geophys. Res.", volume = 115, keywords = "amisr, pfisr, pfrr, sondrestrom", doi = "10.1029/2009JA014938" } @article{Lyons2010a, author = "L. R. Lyons and Y. Nishimura and Y. Shi and S. Zou and H.-J. Kim and V. Angelopoulos and C. Heinselman and M. J. Nicolls and K.-H. Fornacon", title = "Substorm triggering by new plasma intrusion: Incoherent-scatter radar observations", year = 2010 , journal = "J. Geophys. Res.", volume = 115, keywords = "amisr, pfisr, pfrr, sondrestrom", doi = "10.1029/2009JA015168" } @article{Semeter2010a, author = "J. Semeter and T. W. Butler and M. Zettergren and C. J. Heinselman and M. J. Nicolls", title = "Composite imaging of auroral forms and convective flows during a substorm cycle", year = 2010 , journal = "J. Geophys. Res.", volume = 115, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2009JA014931" } @article{Cosgrove2010a, author = "R. Cosgrove and M. Nicolls and H. Dahlgren and S. Ranjan and E. Sanchez and R. Doe", title = "Radar detection of a localized 1.4 Hz pulsation in auroral plasma, simultaneous with pulsating optical emissions, during a substorm", year = 2010 , journal = "Ann Geophys", volume = 28, keywords = "amisr, pfisr, pfrr", doi = "10.5194/angeo-28-1961-2010" } @article{Nicolls2010a, author = "M. J. Nicolls and R. H. Varney and S. L. Vadas and P. A. Stamus and C. J. Heinselman and R. B. Cosgrove and M. C. Kelley", title = "Influence of an inertia-gravity wave on mesospheric dynamics: A case study with the Poker Flat Incoherent Scatter Radar", year = 2010 , journal = "J. Geophys. Res.", volume = 115, keywords = "amisr, pfisr", doi = "10.1029/2010JD014042" } @article{Sparks2010a, author = "J. J. Sparks and D. Janches and M. J. Nicolls and C. Heinselman", title = "Determination of physical and radiant meteor properties using PFISR interferometry measurements of head echoes", year = 2010 , journal = "J Atmos Sol-Terr Phy", volume = 72, keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2010.08.004" } @article{Butler2010a, author = "T. W. Butler and J. Semeter and C. J. Heinselman and M. J. Nicolls", title = "Imaging F region drifts using monostatic phased-array incoherent scatter radar", year = 2010 , journal = "Radio Sci.", volume = 45, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2010RS004364" } @article{Nishimura2010a, author = "Y. Nishimura and L. R. Lyons and S. Zou and X. Xing and V. Angelopoulos and S. B. Mende and J. W. Bonnell and D. Larson and U. Auster and T. Hori and N. Nishitani and K. Hosokawa and G. Sofko and M. Nicolls and C. Heinselman", title = "Preonset time sequence of auroral substorms: Coordinated observations by all-sky imagers, satellites, and radars", year = 2010 , journal = "J. Geophys. Res.", volume = 115, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2010JA015832" } @article{Conde2010a, author = "M. G. Conde and M. J. Nicolls", title = "Thermospheric temperatures above Poker Flat, Alaska, during the stratospheric warming event of January and February 2009", year = 2010 , journal = "J. Geophys. Res.", volume = 115, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2010JD014280" } @article{Zou2010a, author = "S. Zou and M. B. Moldwin and L. R. Lyons and Y. Nishimura and M. Hirahara and T. Sakanoi and K. Asamura and M. J. Nicolls and Y. Miyashita and S. B. Mende and C. J. Heinselman", title = "Identification of substorm onset location and preonset sequence using Reimei, THEMIS GBO, PFISR, and Geotail", year = 2010 , journal = "J. Geophys. Res.", volume = 115, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2010JA015520" } @article{Bahcivan2010a, author = "H. Bahcivan and R. Tsunoda and M. J. Nicolls and C. J. Heinselman", title = "Initial ionospheric observations made by the new Resolute incoherent scatter radar and comparison to solar wind IMF", year = 2010 , journal = "Geophys. Res. Lett.", volume = 37, keywords = "amisr, risrn", doi = "10.1029/2010GL043632" } @article{Zou2009b, author = "S. Zou and L. R. Lyons and M. J. Nicolls and C. J. Heinselman and S. B. Mende", title = "Nightside ionospheric electrodynamics associated with substorms: PFISR and THEMIS ASI observations", year = 2009 , journal = "J. Geophys. Res.", volume = 114, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2009JA014259" } @article{Zou2009a, author = "S. Zou and L. R. Lyons and M. J. Nicolls and C. J. Heinselman", title = "PFISR observations of strong azimuthal flow bursts in the ionosphere and their relation to nightside aurora", year = 2009 , journal = "J. Atmos. Solar-Terr. Phys.", volume = 71, number = 6, pages = "729-737", keywords = "amisr, pfisr, pfrr", doi = "10.1016/j.jastp.2008.06.015" } @article{Varney2009a, author = "R. H. Varney and M. J. Nicolls and C. J. Heinselman and M. C. Kelley", title = "Observations of polar mesospheric summer echoes using PFISR during the summer of 2007", year = 2009 , journal = "J. Atmos. Solar-Terr. Phys.", volume = 71, number = 3, pages = "470-476", keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2009.01.002" } @article{Vadas2009a, author = "S. L. Vadas and M. J. Nicolls", title = "Temporal evolution of neutral, thermospheric winds and plasma response using PFISR measurements of gravity waves", year = 2009 , journal = "J. Atmos. Solar-Terr. Phys.", volume = 71, number = 6, pages = "744-770", keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2009.01.011" } @article{Taylor2009a, author = "M. J. Taylor and Y. Zhao and P.-D. Pautet and M. J. Nicolls and R. L. Collins and J. Barker-Tvedtnes and C. D. Burton and B. Thurairajah and J. Reimuller and R. H. Varney and C. J. Heinselman and K. Mizutani", title = "Coordinated optical and radar image measurements of noctilucent clouds and polar mesospheric summer echoes", year = 2009 , journal = "J. Atmos. Solar-Terr. Phys.", volume = 71, number = 6, pages = "675-687", keywords = "amisr, pfisr, pfrr", doi = "10.1016/j.jastp.2008.12.005" } @article{Sparks2009c, author = "J. J. Sparks and D. Janches and M. J. Nicolls and C. J. Heinselman", title = "Seasonal and diurnal variability of the meteor flux at high latitudes observed using PFISR", year = 2009 , journal = "J. Atmos. Solar-Terr. Phys.", volume = 71, number = 6, pages = "644-652", keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2008.08.009" } @article{Sojka2009b, author = "J. J. Sojka and M. J. Nicolls and C. J. Heinselman and J. D. Kelly", title = "The PFISR IPY observations of ionospheric climate and weather", year = 2009 , journal = "J. Atmos. Solar-Terr. Phys.", volume = 71, number = 6, pages = "771-785", keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2009.01.001" } @article{Sojka2009a, author = "J. J. Sojka and R. L. McPherron and A. P. van Eyken and M. J. Nicolls and C. J. Heinselman and J. D. Kelly", title = "Observations of ionospheric heating during the passage of solar coronal hole fast streams", year = 2009 , journal = "Geophys. Res. Lett.", volume = 36, number = 1, keywords = "amisr, pfisr", doi = "10.1029/2009GL039064" } @article{Semeter2009a, author = "J. Semeter and T. Butler and C. Heinselman and M. Nicolls and J. Kelly and D. Hampton", title = "Volumetric imaging of the auroral ionosphere: Initial results from PFISR", year = 2009 , journal = "J. Atmos Solar-Terr. Phys.", volume = 71, number = 6, pages = "738-743", keywords = "amisr, pfisr, pfrr", doi = "10.1016/j.jastp.2008.08.014" } @article{Richards2009a, author = "P. G. Richards and M. J. Nicolls and C. J. Heinselman and J. J. Sojka and J. M. Holt and R. R. Meier", title = "Measured and modeled ionospheric densities, temperatures, and winds during the international polar year", year = 2009 , journal = "J. Geophys. Res.", volume = 114, keywords = "amisr, pfisr", doi = "10.1029/2009JA014625" } @article{Nicolls2009a, author = "M. J. Nicolls and M. C. Kelley and R. H. Varney and C. J. Heinselman", title = "Spectral observations of polar mesospheric summer echoes at 33 cm (450 MHz) with the Poker Flat Incoherent Scatter Radar", year = 2009 , journal = "J. Atmos Solar-Terr. Phys.", volume = 71, number = 6, pages = "662-674", keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2008.04.019" } @article{Lyons2009b, author = "L. R. Lyons and S. Zou and C. J. Heinselman and M. J. Nicolls and P. C. Anderson", title = "Poker flat radar observations of the magnetosphere-ionosphere coupling electrodynamics of the earthward penetrating plasma sheet following convection enhancements", year = 2009 , journal = "J. Atmos Solar-Terr. Phys.", volume = 71, number = 6, pages = "717-728", keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2008.09.025" } @article{Lyons2009a, author = "L. R. Lyons and H.-J. Kim and X. Xing and S. Zou and D.-Y. Lee and C. Heinselman and M. J. Nicolls and V. Angelopoulos and D. Larson and J. McFadden and A. Runov and K.-H. Fornacon", title = "Evidence that solar wind fluctuations substantially affect global convection and substorm occurrence", year = 2009 , journal = "J. Geophys. Res.", volume = 114, keywords = "amisr, pfisr, sondrestrom", doi = "10.1029/2009JA014281" } @article{Janches2009a, author = "D. Janches and D. C. Fritts and M. J. Nicolls and C. J. Heinselman", title = "Observations of D-region structure and atmospheric tides with PFISR during active aurora", year = 2009 , journal = "J. Atmos Solar-Terr. Phys.", volume = 71, number = 6, pages = "688-696", keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2008.08.015" } @article{Hysell2009a, author = "D. L. Hysell and G. Michhue and M. J. Nicolls and C. J. Heinselman and M. F. Larsen", title = "Assessing auroral electric field variance with coherent and incoherent scatter radar", year = 2009 , journal = "J. Atmos Solar-Terr. Phys.", volume = 71, number = 6, pages = "697-707", keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2008.10.013" } @article{Chau2009a, author = "J. L. Chau and F. R. Galindo and C. J. Heinselman and M. J. Nicolls", title = "Meteor-head echo observations using an antenna compression approach with the 450 MHz Poker Flat Incoherent Scatter Radar", year = 2009 , journal = "J. Atmos Solar-Terr. Phys.", volume = 71, number = 6, pages = "636-643", keywords = "amisr, pfisr", doi = "10.1016/j.jastp.2008.08.007" } @article{Vadas2008a, author = "S. L. Vadas and M. J. Nicolls", title = "Using PFISR measurements and gravity wave dissipative theory to determine the neutral, background thermospheric winds", year = 2008 , journal = "Geophys. Res. Lett.", volume = 35, number = 2, keywords = "amisr, pfisr", doi = "10.1029/2007GL031522" } @article{Hysell2008a, author = "D. L. Hysell and G. Michhue and M. F. Larsen and R. Pfaff and M. Nicolls and C. Heinselman and H. Bahcivan", title = "Imaging radar observations of Farley Buneman waves during the JOULE II experiment", year = 2008 , journal = "Ann. Geophys.", volume = 26, number = 7, pages = "1837-1850", keywords = "amisr, pfisr, pfrr", doi = "10.5194/angeo-26-1837-2008" } @article{Heinselman2008a, author = "C. J. Heinselman and M. J. Nicolls", title = "A Bayesian approach to electric field and E-region neutral wind estimation with the Poker Flat Advanced Modular Incoherent Scatter Radar", year = 2008 , journal = "Radio Sci.", volume = 43, number = 5, keywords = "amisr, pfisr, pfrr", doi = "10.1029/2007RS003805" } @article{Nicolls2007b, author = "M. J. Nicolls and C. J. Heinselman", title = "Three-dimensional measurements of traveling ionospheric disturbances with the Poker Flat Incoherent Scatter Radar", year = 2007 , journal = "Geophys. Res. Lett.", volume = 34, number = 2, keywords = "amisr, pfisr", doi = "10.1029/2007GL031506" } @article{Nicolls2007a, author = "M. J. Nicolls and C. J. Heinselman and E. A. Hope and S. Ranjan and M. C. Kelley and J. D. Kelly", title = "Imaging of Polar Mesosphere Summer Echoes with the 450 MHz Poker Flat Advanced Modular Incoherent Scatter Radar", year = 2007 , journal = "Geophys. Res. Lett.", volume = 34, number = 2, keywords = "amisr, pfisr", doi = "10.1029/2007GL031476" }