PP54B:
Past Atmospheric Variability Inferred from Paleoclimate Proxies I

Submit an Abstract to this Session



Session ID#: 33730

Session Description:
Climate signals recorded in natural archives are controlled by a combination of local, regional and global climatic forcings. Disentangling these different controls is crucial to assess the ability of specific proxy data to capture the evolution of large-scale modes of climate variability.

In addition, issues such as spatio-temporal discrepancies between paleoclimate proxies, and how their climatic interpretations can be reconciled, remain unclear. A multi-proxy approach and/or data-model comparison studies can elucidate the mechanisms controlling the proxy-based climate signals, allowing for a proper interpretation of how these proxies may reflect past climate and atmospheric changes.

We welcome studies of past large-scale atmospheric and climate patterns during the last few millennia, over a range of timescales, captured by any climate proxy type (marine and/or terrestrial). We encourage contributions that integrate both climate modelling and field/proxy data as a way to foster model-data comparison.

Primary Convener:  Laia Comas-Bru, University College Dublin, UCD School of Earth Sciences, Dublin, Ireland
Conveners:  Armand Hernandez, Instituto Dom Luiz (IDL), Faculty of Sciences, University of Lisbon, Lisboa, Portugal, Valerie Trouet, University of Arizona, Laboratory of Tree-Ring Research, Tucson, AZ, United States and Erika Wise, University of North Carolina at Chapel Hill, Department of Geography and Environment, Chapel Hill, United States
Chairs:  Erika Wise, University of North Carolina at Chapel Hill, Department of Geography and Environment, Chapel Hill, United States, Laia Comas-Bru, University College Dublin, UCD School of Earth Sciences, Dublin, Ireland, Valerie Trouet, University of Arizona, Laboratory of Tree-Ring Research, Tucson, AZ, United States and Timothy M Gallagher, University of Michigan Ann Arbor, Ann Arbor, United States
OSPA Liaison:  Erika Wise, University of North Carolina at Chapel Hill, Department of Geography and Environment, Chapel Hill, United States

Cross-Listed:
  • A - Atmospheric Sciences
  • GC - Global Environmental Change
Index Terms:

1616 Climate variability [GLOBAL CHANGE]
1620 Climate dynamics [GLOBAL CHANGE]
1631 Land/atmosphere interactions [GLOBAL CHANGE]
4904 Atmospheric transport and circulation [PALEOCEANOGRAPHY]

Abstracts Submitted to this Session:

High-Resolution Modeling of ENSO-Induced Precipitation in the Tropical Andes: Implications for Proxy Interpretation. (220007)
Jil Kiefer, University of Hawaii at Manoa, Honolulu, HI, United States and Christina Karamperidou, University of Hawai’i at Mānoa, Department of Atmospheric Sciences, Honolulu, United States
Multi-Proxy Reconstructions of Northeast Pacific Decadal Variability from Bivalve Mollusks and Trees (281044)
Bryan Black, University of Texas at Austin, Austin, TX, United States and Daniel Griffin, University of Minnesota, Geography, Environment & Society and Saint Anthony Falls Laboratory, Minneapolis, United States
Unravelling the Natural and Anthropogenic Drivers of North Atlantic Tropical Cyclone Track Position since the Little Ice Age (Invited) (215796)
Lisa Miller Baldini1, James U L Baldini2, Jim McElwaine2, Amy B Frappier3, Yemane Asmerom4, Kam-Biu Liu5, Keith M Prufer6, Harriet Ridley2, Victor J Polyak4, Douglas J Kennett7, Colin Macpherson2, Valorie V Aquino6, Jaime Awe8,9 and Sebastian F. M. Breitenbach10, (1)Teesside University, School of Health & Life Sciences, Middlesbrough, United Kingdom, (2)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (3)Skidmore College, Department of Geosciences, Saratoga Springs, NY, United States, (4)University of New Mexico, Department of Earth and Planetary Sciences, Albuquerque, United States, (5)Louisiana State University, Department of Oceanography and Coastal Sciences, Baton Rouge, United States, (6)University of New Mexico, Department of Anthropology, Albuquerque, NM, United States, (7)Pennsylvania State University, Department of Anthropology, University Park, PA, United States, (8)Institute of Archaeology, Belmopan, Belize, (9)Northern Arizona University, Department of Anthropology, Flagstaff, AZ, United States, (10)Ruhr-Universität Bochum, Institute for Geology, Mineralogy & Geophysics, Bochum, Germany
Potential climatic mechanisms associated with the mega drought at 4200 cal yr BP: linking proxy data with modern climate analogues (250958)
Vachel Carter, Charles University, Department of Botany, Prague, Czech Republic and Jacqueline J Shinker, Universty of Wyoming, Geology and Geophysics, Laramie, United States
Water Source and Isotope changes through the Deglaciation and Holocene (Invited) (215477)
Allegra N. LeGrande, NASA Goddard Institute for Space Studies, New York, NY, United States, Anders E Carlson, Oregon Glaciers Institute, Corvallis, OR, United States, David J Ullman, Northland College, Ashland, WI, United States and Jesse M Nusbaumer, Dept Atmospheric & Oceanic Sci, Boulder, United States
The NAO Influence on the Early to Mid-Holocene North Atlantic Coastal Upwelling (209371)
Armand Hernandez1, Mário Cachão2, Pedro Sousa1, Ricardo M Trigo1 and M. Conceição Freitas1, (1)Instituto Dom Luiz (IDL), Faculty of Sciences, University of Lisbon, Lisboa, Portugal, (2)Instituto Dom Luiz (IDL), Faculty of Sciences, University of Lisbon, Lisbon, Portugal
A High-Resolution Lacustrine Alkenone Record Demonstrates Progressive Cold Season Warming During the Holocene in Arctic Alaska (293581)
William M Longo, Woods Hole Oceanographic Institution, Department of Marine Chemistry and Geochemistry, Woods Hole, MA, United States, Yongsong Huang, Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States, James M Russell, Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, United States, Carrie Morrill, NOAA National Centers for Environmental Information, Boulder, United States, William Daniels, University of Minnesota Duluth, Department of Earth, Geographic and Climate Sciences, Duluth, United States, Anne E Giblin, Marine Biological Laboratory, Ecosystems Center, Woods Hole, United States and Josue Crowther, Brown University, Providence, RI, United States

See more of: Paleoceanography and Paleoclimatology