GC41E:
Mechanisms of Low-Frequency Ocean–Atmosphere Variability and Implications for Earth’s Energy Budget Posters


Submit an Abstract to this Session


Session ID#: 58861

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:  Cristian Proistosescu, University of Illinois at Urbana Champaign, Department of Climate, Meteorology & Atmospheric Sciences, Urbana, United States and Alan M Seltzer, Scripps Institution of Oceanography, La Jolla, CA, 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:

Unsupervised Learning Reveals Geography of Global Ocean Dynamical Regions (419189)
Maike Sonnewald, Carl I Wunsch and Patrick Heimbach, Massachusetts Institute of Technology, Cambridge, MA, United States
Changes in historical ocean heat content due to an improved vertical interpolation scheme (366115)
Trevor J McDougall, University of New South Wales, Sydney, NSW, Australia and Yuehua Li, University of New South Wales, School of Mathematics and Statistics, Sydney, NSW, Australia
Changes in Stratification in the Abyssal zone of the South Western Pacific basin between 1990s to 2010s (467493)
Helen Zhang, Applied Physics Laboratory University of Washington, Seattle, WA, United States and Caitlin B Whalen, Applied Physics Laboratory, University of Washington, Seattle, WA, United States
Methodology for observation-based decomposition of radiative perturbations and application to the post-hiatus energy budget (443084)
Tyler Thorsen1, Norman G Loeb1, Seiji Kato2, Fred G Rose3 and Hailan Wang4, (1)NASA Langley Research Center, Hampton, VA, United States, (2)NASA Langley Research Ctr, Hampton, United States, (3)Analytical Mechanics Associates, Inc. Hampton, Hampton, United States, (4)SSAI, Hampton, VA, United States
Interaction between ocean circulation and sea ice can explain Dansgaard-Oeschger events (383039)
Niklas Boers, Potsdam Institute for Climate Impact Research, Potsdam, Germany, Michael Ghil, Ecole Normale Supérieure Paris, Geosciences, Paris, France and Denis-Didier Rousseau, CNRS, Géosciences Montpellier, Paris Cedex 16, France
Role of Ocean Dynamics in Tropical Pacific Decadal Variability (441371)
Yu Zhang, Ocean University of China, Qingdao, China; Scripps Institution of Oceanography, La Jolla, CA, United States, Shang-Ping Xie, Ocean University of China, Physical Oceanography Laboratory/CIMST & Ocean-Atmosphere Interaction and Climate Laboratory, Qingdao, China; UCSD, Scripps Institution of Oceanography, La Jolla, United States, Yu Kosaka, University of Tokyo, Research Center for Advanced Science and Technology, Bunkyo-ku, Japan and Arthur J Miller, Scripps Institution of Oceanography, La Jolla, United States
Characterizing unforced low-frequency variability of global temperature and global energy imbalance in climate models (399053)
Robert Jnglin Wills, ETH Zürich, Institute for Atmospheric and Climate Science, Zürich, Switzerland, Kyle Armour, University of Washington, Deptartment of Atmospheric and Climate Science, Seattle, United States, David S Battisti, University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States, Cristian Proistosescu, University of Illinois at Urbana Champaign, Department of Climate, Meteorology & Atmospheric Sciences, Urbana, United States and Dennis L Hartmann, University of Washington, Seattle, WA, United States
The Fractional Energy Balance Equation and the Unity of Externally Forced and Internal Variability (459119)
Roman Procyk1, Shaun Lovejoy2, Raphaël Hébert3 and Lenin Del Rio Amador1, (1)McGill University, Montreal, QC, Canada, (2)McGill Univ, Montreal, QC, Canada, (3)Alfred-Wegener-Institut, Potsdam, Germany
On the interannual breathing of the tropical troposphere (469172)
Maria Zita Hakuba1, Graeme L Stephens1, Panagiotis Vergados2, Chi O Ao2 and Anthony J Mannucci3, (1)Jet Propulsion Laboratory, Pasadena, United States, (2)NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (3)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Responses of Atmospheric and Oceanic Heat Transports to Climate Forcing: Compensation versus Collaboration (343374)
Zhengyu Liu, Ohio State University Main Campus, Columbus, OH, United States, Chengfei He, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Feiyu Lu, NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, United States

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