Explanation of files: Phenology Files: 08-11_Bigelows_GDD_Phenology 08-11_Diapensia_GDD_Phenology_Phenocam_lessthan3 08-11_MtnCranberry_GDD_Phenology_Phenocam_lessthan3 Header Explanation: Station--Physical location as explained in figure 1 Neg.6.Base-8.Base--Airtemperature growing degree day as calculated from various base temperatures represented by header name DOY--Julian date DFSM--Days from snow melt Species.P.Stage--phenophase as observed on corresponding date p.cam--N indicates human observer, Y indicates phenocam observer Alpine_Summit_2008-2011_DOY+Air_GDD_Validation Contains average alipne and average MWO summit GDD calculations for base temperatures -4C and -2C as well as corresponding information from Gaussian linear models for relationships between alpine and summit averages. Permanent_Plot_Air_Soil_GDD Contains alpine air soil temperatures recorded from HOBO data loggers at each phenology site as explained in figure 1 as well as soil GDD calculated with base 0C for each site and air GDD calculated for base -6C to 8C in 2 degree C intervals for each site. Summit_1935_2011_MyJnJL_airFreezePt Contains MWO summit temperature data from 1935-2011 Header explanation: FreezePoint--1 indicates temperature was below freezing, 0 indicates temperature was above freezing.