GC34C:
Mechanisms of Low-Frequency Ocean–Atmosphere Variability and Implications for Earth’s Energy Budget I


Submit an Abstract to this Session


Session ID#: 58962

Session Description:
Observations suggest that large-scale atmosphere-ocean coupling moderates regional warming on decadal-to-centennial timescales. For instance, global warming-induced shifts in the storm tracks and Hadley Cell edge will evoke a response in Southern Ocean circulation. Understanding low-frequency ocean-atmosphere variability requires understanding how the atmospheric circulation changes impact ocean circulations and, in turn, how the ocean’s response feeds back on these changes in atmospheric circulation. This session aims to discuss the role of ocean-atmosphere coupling in low-frequency variability and climate change, as well as the influence of slowly evolving SST patterns on Earth’s energy budget. We invite observational, modeling, and theoretical studies that advance our mechanistic understanding of topics such as:
1. Mechanisms of climate variability on interannual to multidecadal timescales
2. Radiative impacts of modes of variability (e.g., ENSO, AMO, PDO)
3. Global energy budget changes during hiatus and surge periods
4. Applications to climate predictability
Primary Convener:  Robert Jnglin Wills, University of Washington, Seattle, Seattle, WA, United States
Conveners:  Momme Claus Hell, University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States, Dillon J Amaya, University of Colorado, Boulder, United States and Eleanor Middlemas, University of Miami, Miami, FL, United States
Primary Liaison:  Robert Jnglin Wills, ETH Zürich, Institute for Atmospheric and Climate Science, Zürich, Switzerland
Chairs:  Alan M Seltzer, Scripps Institution of Oceanography, La Jolla, CA, United States and Elizabeth Maroon, National Center for Atmospheric Research, Boulder, CO, United States
OSPA Liaison:  Cristian Proistosescu, University of Illinois at Urbana Champaign, Department of Climate, Meteorology & Atmospheric Sciences, Urbana, United States

Cross-Listed:
  • A - Atmospheric Sciences
Index Terms:

1616 Climate variability [GLOBAL CHANGE]
1620 Climate dynamics [GLOBAL CHANGE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]
4513 Decadal ocean variability [OCEANOGRAPHY: PHYSICAL]

Abstracts Submitted to this Session:

How Asymmetries Between Arctic and Antarctic Climate Sensitivity are Modified by the Ocean (Invited) (442647)
Hansi Alice Singh, Oluwayemi A. Garuba and Philip J Rasch, Pacific Northwest National Laboratory, Richland, WA, United States
Global reconstruction of historical low-frequency ocean heat storage and transport (Invited) (423308)
Laure Zanna, University of Oxford, Dept of Physics, Oxford, United Kingdom, Jonathan M Gregory, Met Office Hadley Centre and National Centre for Atmospheric Science, University of Reading, Reading, United Kingdom and Samar Khatiwala, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
Local regions driving global interdecadal temperature variability in the Last Millennium Reanalysis (423758)
Dr. Luke Alexander Parsons, PhD and Gregory J. Hakim, University of Washington, Atmospheric Sciences, Seattle, United States
Climate models can correctly simulate the continuum of temperature variability (357639)
Feng Zhu, NSF National Center for Atmospheric Research, Boulder, United States, Julien Emile-Geay, Univ. of Southern California, Department of Earth Sciences, Los Angeles, United States, Toby Ault, Cornell University, Department of Earth and Atmospheric Science, Ithaca, NY, United States, Nicholas McKay, University of Arizona, Tucson, United States, Gregory J. Hakim, University of Washington, Atmospheric Sciences, Seattle, United States, Deborah Khider, University of Southern California, Information Sciences Institute, Los Angeles, CA, United States, Eric J. Steig, University of Washington, Seattle, United States, Sylvia Dee, Rice University, Earth, Environmental, and Planetary Sciences, Houston, TX, United States and James W Kirchner, ETH Swiss Federal Institute of Technology Zurich, Department of Environmental Systems Science, Zurich, Switzerland; University of California, Berkeley, Dept. of Earth and Planetary Science, Berkeley, United States
Investigating the Relationship Between TOA Energy Fluxes and Surface Temperature as a Function of Frequency (Invited) (359526)
Nicholas Lutsko, Massachusetts Institute of Technology, Cambridge, MA, United States, Ken Takahashi, Instituto Geofisico del Peru, Lima, Peru and Isaac Held, Princeton University, Princeton, NJ, United States
Simulated inter-hemispheric phasing for an abrupt Northern Hemisphere warming (Invited) (392556)
David Ferreira, University of Reading, Meteorology Department, Reading, United Kingdom, Eduardo Moreno-Chamarro, Barcelona Supercomputing Center, Barcelona, Spain and John C Marshall, Massachusetts Institute of Technology, Cambridge, United States
Impact of Momentum Coupling on Large-Scale Pacific and Atlantic Climate (432246)
Sarah Larson, North Carolina State University Raleigh, Department of Marine, Earth, and Atmospheric Sciences, Raleigh, NC, United States, Daniel Vimont, University of Wisconsin Madison, Madison, WI, United States, Amy C Clement, Rosenstiel School of Marine, Atmospheric, and Earth Science, University of Miami, Department of Atmospheric Sciences, Miami, United States and Ben P Kirtman, University of Miami, Rosenstiel School of Marine, Atmospheric, and Earth Science, Miami, United States
Timescales and Mechanisms of the Tropical Pacific Response to Global Warming (351957)
Ulla Heede, University of Colorado Boulder, Cooperative Institute for Research in the Environmental Sciences, Boulder, United States, Alexey V Fedorov, Yale University, Earth and Planetary Sciences, New Haven, CT, United States and Natalie Burls, George Mason University, Atmospheric, Oceanic and Earth Sciences, Fairfax, VA, United States

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