To cite raytracing in publications use at least the first, if not both:

Rehbein, A., Ambrizzi, T., Ibarra-Espinosa, S., Dutra, L. M. M.: Rossby Wave Ray Tracing v0.5.0. https://github.com/salvatirehbein/raytracing, 2020.

Rehbein A (2022). raytracing: Rossby Wave Ray Tracing. R package version 0.5.0, https://github.com/salvatirehbein/raytracing/.

Thanks

Corresponding BibTeX entries:

  @Manual{,
    title = {raytracing: An R package for identification and tracking
      the atmospheric Rossby waves},
    author = {Amanda Rehbein and Tercio Ambrizzi and Sergio
      Ibarra-Espinosa and Livia M. M. Dutra},
    year = {2020},
    url = {https://github.com/salvatirehbein/raytracing},
    note = {R package version 0.5.0},
  }

  @Manual{,
    title = {raytracing: Rossby Wave Ray Tracing},
    author = {Amanda Rehbein},
    year = {2022},
    note = {R package version 0.5.0},
    url = {https://github.com/salvatirehbein/raytracing/},
  }