[List_of_PRE_cases.xlsx]
  This file is a list of case studies analyzed in this study.
  All typhoon analysis times are set to 12 UTC.
  PRE cases are listed on sheet 1.
  Non-PRE cases are listed on sheet 2.
  Non-typhoon cases are listed on sheet 3.

[Potential_vorticity.pdf]
  This file contains results for the potential vorticity of the PRE cases.
  Partially described in Section 5 (Conclusions) of the manuscript.