A53N:
The Dynamics of the Large-Scale Atmospheric Circulation in Present and Future Climates: Jet Streams, Storm Tracks, Stationary Waves, and Monsoons II

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Session ID#: 31017

Session Description:
Large-scale atmospheric circulation plays a key role in the global climate system. Understanding the fundamental dynamics of the large-scale circulation is essential for constraining regional climate projections under increasing greenhouse gas concentrations. Furthermore, the dynamics of the atmospheric general circulation intimately interact with the hydrological cycle, exerting profound impacts on extreme weather and climate events. Such interactions in both the tropics and extra-tropics occur on a wide range of spatial and temporal scales, which calls for a combination of conceptual understanding, models of varying complexity, and observations.

We welcome contributions covering theory, idealized and comprehensive modeling, and novel diagnostic frameworks and metrics for observations and CMIP model outputs to improve our understanding of the large-scale atmospheric circulation and how it may respond to future climate change. Contributions including, but not limited to, the ITCZ, monsoons, storm tracks, extreme weather events, blocking, stationary waves, and atmospheric rivers are highly encouraged.

Primary Convener:  Lei Wang, Harvard University, Cambridge, MA, United States
Conveners:  Simona Bordoni, University of Trento, Trento, Italy, Gang Chen, University of California Los Angeles, Los Angeles, CA, United States and Isla Simpson, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States
Chairs:  Isla Simpson, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States and Gang Chen, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States
OSPA Liaison:  Isla Simpson, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States
Index Terms:

1620 Climate dynamics [GLOBAL CHANGE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]
3319 General circulation [ATMOSPHERIC PROCESSES]
3373 Tropical dynamics [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

The Annual Cycle of the Tropical Rain Belts and its Changes under CO2 Quadrupling in the TRACMIP Ensemble (255790)
Michela Biasutti1, Aiko Voigt2 and Jacob Scheff1, (1)Columbia University of New York, Palisades, NY, United States, (2)Karlsruhe Institute of Technology, Karlsruhe, Germany
Toward the use of Convective Quasi-Equilibrium as a predictor for changes in the seasonal cycle of tropical precipitation (218940)
Bryce E Harrop, Jian Lu and L. Ruby Leung, Pacific Northwest National Laboratory, Richland, WA, United States
Understanding the Varying Timescales of the Tropospheric Circulation Response to Increasing Greenhouse Gases (218605)
Kevin M Grise, University of Virginia, Charlottesville, VA, United States and Prof. Lorenzo M Polvani, PhD, Columbia University, Department of Applied Physics and Applied Mathematics, New York, United States
Transient Atmospheric Circulation Changes in a Grand ensemble of Idealized CO2 Increase Experiments (253405)
Elisa Manzini1, Alexey Karpechko2 and Luis Kornblueh1, (1)Max Planck Institute for Meteorology, Hamburg, Germany, (2)Finnish Meteorological Institute, Helsinki, Finland
El Nino-like Teleconnection Increases California Precipitation in Response to Warming (246735)
Robert Allen, University of California Riverside, Riverside, CA, United States
The response of East Asian monsoon to the precessional cycle (300983)
Jung-Eun Lee, Brown University, Earth, Environmental and Planetary Sciences, Providence, RI, United States
Hemispherically Dependent Responses of the Global Monsoon to Volcanic Eruptions in the CESM Last Millennium Ensemble (264035)
John Fasullo, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, Bette L Otto-Bliesner, NSF National Center for Atmospheric Research, Boulder, United States and Samantha Stevenson, National Center for Atmospheric Research, Boulder, United States
Mountain Ranges, Stationary Waves, and Rossby Wave Refraction (297196)
Rachel H White, University of Washington, Department of Atmospheric Sciences, Seattle, United States and David S Battisti, University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States

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