B53C:
Understanding Phenological Responses and Feedbacks in Terrestrial Vegetation: Patterns, Mechanisms, and Consequences II


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Session ID#: 59978

Session Description:
Phenology is an integrated and sensitive indicator of ecosystem health and function that responds to growing conditions, disturbance, and climate change. Understanding phenological responses to environmental change across spatial and temporal scales is critical for forecasting shifts in species activity and associated changes in biogeochemical cycling, landscape dynamics, and ecological processes. This session features recent advances in characterizing the spatio-temporal patterns in vegetation phenology using a variety of methods (e.g., satellite, drones, webcams, in-situ); determining underlying mechanistic processes; developing accurate model representations of vegetation phenology; and investigating phenological implications to key land surface processes and society.  The session will also feature contributions from the USA National Phenology Network (USA-NPN), which for a decade has provided data, tools and platforms designed to advance science, support decision making, and engage a diversity of audiences -- including scientists, educators, resource managers, policy-makers, and the public -- in this exciting and emerging field.
Primary Convener:  Jitendra Kumar, Oak Ridge National Laboratory, Climate Change Science Institute, Oak Ridge, TN, United States
Conveners:  Xiangtao Xu, Cornell University, Ecology and Evolutionary Biology, Ithaca, NY, United States, Min Chen, Carnegie Institution for Science Stanford, Department of Global Ecology, Stanford, CA, United States; University of Wisconsin Madison, Department of Forest and Wildlife Ecology, Madison, WI, United States and Jake F Weltzin, USA National Phenology Network, Fort Collins, CO, United States
Primary Liaison:  Jitendra Kumar, Oak Ridge National Laboratory, Oak Ridge, TN, United States
Chairs:  Jitendra Kumar, Oak Ridge National Laboratory, Climate Change Science Institute, Oak Ridge, TN, United States and Jake F Weltzin, USA National Phenology Network, Fort Collins, CO, United States
OSPA Liaison:  Xiangtao Xu, Cornell University, Ecology and Evolutionary Biology, Ithaca, NY, United States

Cross-Listed:
  • GC - Global Environmental Change
  • SI - Societal Impacts and Policy Sciences
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
0476 Plant ecology [BIOGEOSCIENCES]
0480 Remote sensing [BIOGEOSCIENCES]

Abstracts Submitted to this Session:

10 years of scientific advancements made possible by the USA National Phenology Network (398177)
Katharine Gerst, USA National Phenology Network, Tucson, AZ, United States and Staff of the USA-NPN National Coordinating Office
Advancing Spring Onset Forecasts (Invited) (424181)
Toby Ault1, Xiaolu Li2, Carlos Carillo1 and Mark D Schwartz3, (1)Cornell University, Department of Earth and Atmospheric Science, Ithaca, NY, United States, (2)Cornell University, Ithaca, United States, (3)UW-Milwaukee, Milwaukee, WI, United States
Does an Early Spring Mean an Early Summer? Relationships in Intra-seasonal Growing Degree Day Thresholds Across Base Temperatures and Geography (382137)
Theresa M Crimmins, USA National Phenology Network, Tucson, United States and Michael Crimmins, Univ Arizona -Soil Wtr Env Sci, Tucson, AZ, United States
Long-term Projections for Migration Phenology in Sierra Nevada Bighorn Sheep (450361)
Christian John1, Tom Stephenson2 and Eric Post1, (1)University of California Davis, Wildlife, Fish, and Conservation Biology, Davis, CA, United States, (2)California Department of Fish and Wildlife, Sierra Nevada Bighorn Sheep Recovery Program, Bishop, United States
USA-NPN Observations Reveal the Ecological Relevance of Remotely Sensed Phenology (439101)
Josh Gray, North Carolina State University, Center for Geospatial Analytics, Raleigh, United States, Anam Khan, North Carolina State University Raleigh, Forestry and Environmental Resources, Raleigh, United States and Mark A Friedl, Boston University, Earth and Environment, Boston, MA, United States
Phenology of temperate deciduous forests: Roles of energy and moisture (397746)
Bijan Seyednasrollah, Harvard University, Cambridge, MA, United States; Northern Arizona University, School of Informatics, Computing and Cyber Systems, Flagstaff, AZ, United States, Thomas E Milliman, Univ. of New Hampshire, Institute for the Study of Earth, Oceans and Space (EOS), Durham, NH, United States, Mark A Friedl, Boston University, Earth and Environment, Boston, MA, United States and A Stephen S Richardson, Northern Arizona University, Flagstaff, United States
New National Percent Greenup Completion Departure Maps Show Deviations in the Seasonal Progression of Vegetation Timing Every 8 Days (Invited) (360752)
William Walter Hargrove, USDA Forest Service Southern Research Station, Eastern Forest Environmental Threat Assessment Center, Hot Springs National, AR, United States, Steven P Norman, USDA Forest Service, Asheville, NC, United States, Jitendra Kumar, Oak Ridge National Laboratory, Climate Change Science Institute and Environmental Sciences Division, Oak Ridge, TN, United States and William M Christie, USDA Forest Service Southern Research Station, Eastern Forest Environmental Threat Assessment Center, Asheville, NC, United States
Understanding phenology response to urbanization using high resolution satellite observations (360555)
Yuyu Zhou, Iowa State University, Department of Geological and Atmospheric Sciences, Ames, IA, United States, Xuecao Li, Iowa State University, Dept. of Geological & Atmospheric Sciences, Ames, United States, Ghassem Asrar, Pacific Northwest National Laboratory, Richland, WA, United States and Lin Meng, Vanderbilt University, Dept. of Earth & Environmental Sciences, Nashville, TN, United States

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