phenograss model v1.0

The phenograss model as implemented in the paper: Hufkens K., Keenan T. F., Flanagan L. B., Scott R. L., Bernacchi C. J., Joo E., Brunsell N. A., Verfaillie J. & Richardson A. D. (2016). Productivity of North American grasslands is increased under future climate scenarios despite rising aridity. Nature Climate Change, 6, 710 - 714.

This includes limited data of model training output (Figure 1), forward runs (Figures 2-3), as well as validation data (Figure 4). Data drivers and final products are provided in the data directory.