text: 
  Journal of Geophysical Research: Biogeosciences
  CRIMMINS AND CRIMMINS
  2639
  Acknowledgments
  The mean DOY (19812010) 50, 250,
  and 450GDD threshold DOY layers
  calculated in this analysis are available
  from the Dryad Digital Repository:
  https://doi.org/10.5061/dryad.pp045j3.
  The