Session 5 Waves and Circulation: Connections across Scales—Part I

Wednesday, 9 January 2019: 8:30 AM-10:00 AM
West 212A (Phoenix Convention Center - West and North Buildings)
Host: 20th Conference on Middle Atmosphere
M. Joan Alexander, NorthWest Research Associates, CoRA Office, Boulder, CO and Edwin P. Gerber, Courant Institute of Mathematical Sciences, Center for Atmosphere Ocean Science, New York, NY
Aditi Sheshadri, Stanford Univ., Earth system science, Palo Alto, CA and M. Joan Alexander, NorthWest Research Associates, CoRA Office, Boulder, CO

The dynamics of the middle atmosphere and its coupling to the tropospheric weather and climate are inherently tied to a broad spectrum of atmospheric waves. This session will consider theoretical, observational, and modeling (idealized to complex) studies focused on the interactions between waves (gravity waves to planetary scale) with the circulation. Additionally, we will consider presentations that discuss dynamic features of the middle atmosphere, such as the Brewer–Dobson circulation and polar vortices, and their connection to the global atmosphere–ocean system.

8:45 AM
Evaluation of a New Orographic Gravity Wave Drag Scheme for the Community Earth System Model (CESM)
Julio T. Bacmeister, NCAR, Boulder, CO; and M. J. Alexander, L. Holt, and A. Hertzog
9:00 AM
Satellite Estimates of Momentum Fluxes from High-Impact Gravity Wave Events in the Stratosphere and Their Effects on Circulation
Laura Holt, NorthWest Research Associates, Boulder, CO; and M. J. Alexander, N. Hindley, L. Coy, W. M. Putman, and L. Hoffmann
9:30 AM
9:45 AM
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