Phenological modeling has been used to decipher the underlying drivers of phenological events, and to make predictions about how phenology will shift with climate change. The phenor R package and the associated phenocamr package, developed by long-time PhenoCam team member Koen Hufkens, provide a phenology modelling framework in R, greatly facilitating the process by offering a suite of already-developed models all embedded within a parameter optimization framework.
Together, these two packages leverage measurements of vegetation phenology from four common phenology observation datasets (including PhenoCam) combined with (global) retrospective and projected climate data. The GitHub repository for this package is available at: https://github.com/khufkens/phenor. For more information, see also the paper by Hufkens et al. (2018).