@article{Forsythe2020a,
  author = "V. V. Forsythe and I. Azeem and G. Crowley and D. R. Themens",
  title = "Ionospheric Vertical Correlation Distances: Estimation From ISR Data, Analysis and Implications For Ionospheric Data Assimilation",
  year =  2020 ,
  journal = "Radio Science",
  keywords = "pfisr, risrn",
  doi = "https://doi.org/10.1029/2020RS007177",
  url = "https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020RS007177"
}