Allowing Existing Vegetation to Empirically Define Its Own Phenological Year to Quantify the Degree and Timing of Seasonality Across the United States

William W. Hargrove, Danny C. Lee, Steven P. Norman, Forrest M. Hoffman, and Jitendra Kumar

EFETAC, USDA Forest Service, EFETAC, USDA Forest Service, EFETAC, USDA Forest Service, Oak Ridge National Laboratory, and Oak Ridge National Laboratory