Seasonality: Past, Present and Future

Session ID#: 26153

Session Description:
Seasonal changes in temperature and precipitation are in most cases much larger than variations in mean annual values over longer timescales. Seasonality is thus fundamental for understanding phenomena such as droughts, biome shifts and the expansion and retreat of ice sheets. In addition, phenology is currently changing rapidly in response to modern climate change, e.g. earlier leaf out. However, our records of seasonality in the past are sparse; our understanding of modern and future changes in phenology is incomplete and few studies interpret one in the context of the other. We therefore welcome abstracts concerning seasonality and the annual timing of phenomena (e.g. biogeochemical reaction rates, leaf out, etc.) that include the development and interpretation of paleoclimate proxy records of seasonality, empirical phenology, climate and vegetation modeling involving the responses to and feedbacks associated with changes in seasonality, and/or those that contextualize modern changes with the past or vice versa.
Primary Convener:  Timothy Michael Gallagher, University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States
Conveners:  Dan Breecker, University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States and Natasha Sekhon, University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States
Co-Organized with:
Paleoceanography and Paleoclimatology, and Biogeosciences

  • B - Biogeosciences
  • GC - Global Environmental Change

Abstracts Submitted to this Session:

Linda C Ivany and Emily Joan Judd, Syracuse University, Earth Sciences, Syracuse, NY, United States
Dominique Beatrice Maier1, Christian Bigler1 and Sebastian Diehl2, (1)Umeå University, Umeå, Sweden, (2)Umeå University, Department of Ecology and Environmental Science, Umeå, Sweden
Timothy Michael Gallagher, University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States, Michael T Hren, University of Connecticut, Center for Integrative Geosciences, Storrs, CT, United States and Nathan D Sheldon, Univ of MI-Earth and Environmental Sciences, Ann Arbor, MI, United States
Natasha Sekhon, Jay Banner, Nathaniel R Miller, Peter Eric Carlson and Dan Breecker, Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX, United States
William M Longo1, Yongsong Huang2, James M Russell2, Carrie Morrill3, William Daniels2, Anne E Giblin4 and Josue Crowther2, (1)Brown University, Earth, Environmental and Planetary Science, Providence, RI, United States, (2)Brown University, Providence, RI, United States, (3)NOAA's National Centers for Environmental Information, Boulder, CO, United States, (4)Marine Biological Laboratory, Ecosystems Center, Woods Hole, MA, United States
Adam M Hudson, USGS Global Environmental Change Science Center, Lakewood, CO, United States, James B Paces, USGS, Denver, CO, United States and Cal Ruleman, Geosciences and Environmental Change Science Center, USGS, Lakewood, CO, United States
Fengmei Ban, Organization Not Listed, Washington, DC, United States, Andy Baker, UNSW Australia, School of Biological, Earth and Environmental Sciences, Sydney, NB, Australia, Christopher Marjo, UNSW, Syndey, Australia, Wuhui Duan, Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, beijing, China, Xianglei Li, Xi'an Jiaotong University, Institute of Global Environmental Change, Xian, China, Katie Coleborn, UNSW Sydney, Connected Waters Initiative Research Centre, Sydney, Australia, Rabeya Akter, UNSW, Sydney, Australia and Gurinder Nagra, University of New South Wales, Sydney, NSW, Australia
Carlos M. Carrillo and Toby Ault, Cornell University, Ithaca, NY, United States
James U L Baldini, University of Durham, Department of Earth Sciences, Durham, United Kingdom