@article{Shammat2026a,
  author = "M. O. Shammat and B. W. Reinisch and I. Galkin and P. J. Erickson and W. Johnson and S. Karpouzas and J. A. Weitzen and W. C. Rideout",
  title = "High-latitude F2 peak density thickness: a long-term characterization using PFISR measurements",
  year =  2026 ,
  journal = "Advances in Space Research",
  month = "Feb",
  keywords = "ionosphere, peak density thickness, f2 layer, electron density modeling, poker flat incoherent scatter radar, pfisr",
  doi = "https://doi.org/10.1016/j.asr.2026.02.015",
  url = "https://www.sciencedirect.com/science/article/pii/S0273117726001961"
}


@article{Akharman2025a,
  author = "M. Akharman and P. B. Calle and M. Oppenheim and R. Volz and P. Erickson",
  title = "Meteor Head and Trail Echo Observations by the Millstone Hill Radar and Comparisons to Other Measurements",
  year =  2025 ,
  journal = "Journal of Geophysical Research: Space Physics",
  volume = 130,
  number = 11,
  month = "Nov",
  keywords = "meteor physics, radar science, ionospheric physics, aeronomy, heliophsyics, geospace science, pfisr",
  doi = "https://doi.org/10.1029/2025JA034212",
  url = "https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2025JA034212",
  note = "e2025JA034212 2025JA034212"
}


@article{Frissell2022a,
  author = "N. A. Frissell and S. R. Kaeppler and D. F. Sanchez and G. W. Perry and W. D. Engelke and P. J. Erickson and A. J. Coster and J. M. Ruohoniemi and J. B. H. Baker and M. L. West",
  title = "First Observations of Large Scale Traveling Ionospheric Disturbances Using Automated Amateur Radio Receiving Networks",
  year =  2022 ,
  journal = "Geophysical Research Letters",
  volume = 49,
  number = 5,
  keywords = "lstid, traveling ionospheric disturbance, midlatitude ionosphere, amateur radio, superdarn, gnss tec, pfisr",
  doi = "https://doi.org/10.1029/2022GL097879",
  url = "https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2022GL097879",
  note = "e2022GL097879 2022GL097879"
}


@article{Aa2021a,
  author = "E. Aa and S.-R. Zhang and P. J. Erickson and A. J. Coster and L. P. Goncharenko and R. H. Varney and R. Eastes",
  title = "Salient Midlatitude Ionosphere-Thermosphere Disturbances Associated With SAPS During a Minor but Geo-Effective Storm at Deep Solar Minimum",
  year =  2021 ,
  journal = "Journal of Geophysical Research: Space Physics",
  volume = 126,
  number = 7,
  month = "Jun",
  keywords = "pfisr",
  doi = "https://doi.org/10.1029/2021JA029509",
  url = "https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2021JA029509",
  note = "e2021JA029509 2021JA029509"
}


@article{Wu2019a,
  author = "Q. Wu and D. Knipp and J. Liu and W. Wang and R. Varney and R. Gillies and P. Erickson and M. Greffen and A. Reimer and I. Häggström and G. Jee and Y.-S. Kwak",
  title = "HIWIND Observation of Summer Season Polar Cap Thermospheric Winds",
  year =  2019 ,
  journal = "Journal of Geophysical Research: Space Physics",
  volume = 124,
  number = 11,
  keywords = "risrc",
  doi = "10.1029/2019JA027258",
  url = "https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019JA027258"
}


@article{Themens2018a,
  author = "D. R. Themens and P. T. Jayachandran and D. Bilitza and P. J. Erickson and I. Haggstrom and M. V. Lyashenko and B. Reid and R. H. Varney and L. Pustovalova",
  title = "Topside electron density representations for middle and high latitudes: A topside parameterization for E-CHAIM based on the NeQuick",
  year =  2018 ,
  journal = "Journal of Geophysical Research: Space Physics",
  publisher = "American Geophysical Union",
  volume = 123,
  keywords = "pfisr, risrn",
  doi = "10.1002/2017JA024817"
}


@article{Mrak2018a,
  author = "S. Mrak and J. Semeter and M. Hirsch and G. Starr and D. Hampton and R. H. Varney and A. S. Reimer and J. Swoboda and P. J. Erickson and F. Lind and A. J. Coster and V. Pankratius",
  title = "Field-aligned GPS scintillation: Multisensor data fusion",
  year =  2018 ,
  journal = "Journal of Geophysical Research: Space Physics",
  publisher = "American Geophysical Union",
  volume = 123,
  pages = "974-992",
  keywords = "pfrr, pfisr",
  doi = "10.1002/2017JA024557"
}


@article{Semeter2017a,
  author = "J. Semeter and S. Mrak and M. Hirsch and J. Swoboda and H. Akbari and G. Starr and D. Hampton and P. Erickson and F. Lind and A. Coster and V. Pankratius",
  title = "GPS signal corruption by the discrete Aurora: Precise measurements from the Mahali experiment",
  year =  2017 ,
  journal = "Geophysical Research Letters",
  publisher = "American Geophysical Union",
  volume = 44,
  pages = "9539-9546",
  keywords = "pfrr",
  doi = "10.1002/2017GL073570"
}


@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"
}