SPRUCE Ground Observations of Phenology in Experimental Plots, 2024
- Northern Arizona Univ., Flagstaff, AZ (United States)
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
This data set consists of one comma separated (*.csv) file containing phenological transition dates, as derived from direct observations of vegetative and reproductive phenology recorded by a human observer, from the SPRUCE experiment during 2024 (2025-03-06 to 2025-11-21), the ninth full year of whole-ecosystem warming (Hanson et al. 2017). Both spring and autumn phenological events are included. Since April 2016, human observers have been directly tracking the phenology of both woody and herbaceous species on a weekly schedule within the SPRUCE experimental chambers, these data are reported in annual ground observations data sets (see Related Data Sets). The observed date reported here is the first survey date in 2024 on which an event/phenophase was definitively observed. This data set also contains a companion file in HTML (*.html) containing figures showing the relationship between the day of year and temperature treatment for different phenological phases by species for 2024.
- Research Organization:
- Oak Ridge National Lab's Terrestrial Ecosystem Science Scientific Focus Area (ORNL TES SFA) (ORNLTESSFA)
- Sponsoring Organization:
- USDOE Office of Science (SC), Biological and Environmental Research (BER). Earth & Environmental Systems Science (EESS)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 2568474
- Report Number(s):
- spruce.124
- Country of Publication:
- United States
- Language:
- English
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