This data set consists of PhenoCam data from the SPRUCE experiment from the beginning of whole ecosystem warming (Hanson et al. 2017) in August 2015 through March 31 of 2021, with start- and end-of-season phenological transition dates derived through the end of autumn 2020.
Digital cameras, or phenocams, installed in each SPRUCE enclosure track seasonal variation in vegetation “greenness”, a proxy for vegetation phenology and associated physiological activity. Three separate regions of interest (ROIs) were defined for each camera field of view, corresponding to different vegetation types and demarcating (1) Picea trees (vegetation type EN, for evergreen needleleaf); (2) Larix trees (vegetation type DN, for deciduous needleleaf); and (3) the mixed shrub layer (vegetation type SH).
User note: This dataset has been superseded by a later version. For most recent version, please see:
Richardson, A.D., C. Schädel, J. Blais, T. Milliman, K. J. Pearson, M.B. Krassovski, and P.J. Hanson. 2021. SPRUCE Vegetation Phenology in Experimental Plots from Phenocam Imagery, 2015-2022. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/ 10.25581/spruce.108/1996813.
User Note: HTML files cannot be viewed in Dropbox, they must be downloaded and opened in a web browser.
Schädel, C., A.D. Richardson, T. Milliman, K. J. Pearson, M.B. Krassovski, and P.J. Hanson. 2021. SPRUCE Vegetation Phenology in Experimental Plots from Phenocam Imagery, 2015-2020. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.25581/spruce.095/1824339.
Tuesday, December 21, 2021