Session 14A Large-Scale Atmospheric Dynamics and Climate: Jet Streams, Storm Tracks, Stationary Waves, and Monsoons II

Thursday, 16 January 2025: 10:45 AM-12:00 PM
244 (New Orleans Ernest N. Morial Convention Center)
Host: 38th Conference on Climate Variability and Change
Cochairs:
Hamid A. Pahlavan, University of Washington, Atmospheric Sciences Department, Seattle, WA; Gang Chen; Aditi Sheshadri, Rice Univ., Houston, TX; Jezabel Curbelo; Marianna Linz, Harvard University, Cambridge, MA; Sandro W. Lubis, M.Sc, Ph.D.,, Pacific Northwest National Laboratory and Y. Qiang Sun

The large-scale atmospheric circulation redistributes heat, moisture, and atmospheric tracers around the globe, playing a key role in shaping regional climate and climate change. The large-scale circulation is in return shaped by the interactions of large-scale dynamics with the global energy budget and hydrological cycle and with smaller scale processes such as mesoscale motions and cloud processes. Disentangling the many processes that shape the large-scale circulation and its response to climate change requires a combination of conceptual understanding, hierarchical modeling, and observations. 

We welcome observational, modeling, and theoretical studies on the dynamics of large-scale atmospheric circulations such as jet streams, storm tracks (including blocking and atmospheric rivers), stationary waves, monsoons, and tropical overturning circulations. Contributions on the response of these circulations to climate change are particularly encouraged.

Papers:
11:00 AM
14A.2
Moisture and Persistence of Annular Mode: Insights from Idealized Simulation of GFDL Spectral Model
Jin-Yu Chang, National Taiwan University, Taipei City, Taipei, Taiwan; National Taiwan Univ., Taipei city, Taipei, Taiwan; and K. C. Tseng

11:15 AM
14A.3
11:30 AM
14A.4
Significant Modulations in Storm-Track Activity and Transient Eddy Structure in Association with the Southern Hemisphere Baroclinic Annular Mode
Hisashi Nakamura, RCAST, Univ. of Tokyo, Meguro-ku, Tokyo, Japan; and M. Nakayama, F. Ogawa, and S. Okajima

11:45 AM
14A.5
Assessing Rossby Wave Breaking Activity in the CESM Large Ensemble 2 from the Historical Period to the Late 21st Century
Grant LaChat, The Pennsylvania State University, University Park, PA; and K. A. Bowley and M. Gervais

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