Session 6 Gravity Wave Observations, Modeling and Parameterization

Thursday, 23 August 2007: 8:30 AM-12:00 PM
Multnomah (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Organizer:
Stephen D. Eckermann, NRL, Space Science Division, Washington, DC
Chair:
Jadwiga Richter, NCAR, CGD, Boulder, CO

Papers:
8:30 AM
6.1
Gravity wave instabilities at large and small amplitudes: competition between wave-wave interactions and wave breaking (Invited Speaker)
David C. Fritts, NorthWest Research Associates, Inc., Colorado Research Associates Division, Boulder, CO

8:55 AM
6.2
Modal and nonmodal perturbations of monochromatic high-frequency gravity waves: Primary nonlinear dynamics
Ulrich Achatz, Leibniz Institute for Atmospheric Physics (IAP), Kuehlungsborn, Germany
Recorded Presentation

9:10 AM
6.3
High resolution satellite observations of mountain waves
M. Joan Alexander, NorthWest Research Associates, Boulder, CO; and H. Teitelbaum, S. D. Eckermann, J. Gille, and J. Barnett
Recorded Presentation

9:25 AM
6.4
Comparison of satellite gravity wave measurements with a global ray tracing experiment
Peter Preusse, Juelich Research Center, 52425 Juelich, Germany; and M. Ern, S. Eckermann, R. H. Picard, J. M. Russell III, and M. G. Mlynczak
Recorded Presentation

9:40 AM
6.5
Global Gravity Wave Variances from Aura MLS: Characteristics and Interpretation
Dong L. Wu, JPL, Pasadena, CA; and S. D. Eckermann
Recorded Presentation

9:55 AM
6.6
Three-dimensional characteristics of stratospheric mountain waves during T-REX
James D. Doyle, NRL, Monterey, CA; and W. A. Cooper, V. Grubisic, J. B. Jensen, Q. Jiang, and R. B. Smith
Recorded Presentation

10:10 AM
Break

10:35 AM
6.7
The importance of small-scale gravity waves in the middle atmosphere: a modeller's perspective (Invited Speaker)
Charles McLandress, Department of Physics, University of Toronto, Canada, Toronto, ON, Canada
Recorded Presentation

11:00 AM
6.8
A sensitivity study of the middle atmosphere to changes in the parameterized momentum drag of gravity waves
Fabrizio Sassi, NCAR, Boulder, CO; and J. Richter and R. Garcia
Recorded Presentation

11:15 AM
6.9
Gravity waves captured in high-resolution global atmospheric analyses, forecasts and climate simulations using the Goddard Earth Observing System (GEOS-5) AGCM/DAS
Julio T. Bacmeister, NASA/GSFC, Greenbelt, MD; and I. S. Song, M. J. Suarez, L. L. Takacs, C. M. Tassone, and P. Pegion
Recorded Presentation

11:30 AM
6.10
Gravity-wave parameterization and the breakdown of Newton's Third Law
John F. Scinocca, CCCma, Victoria, BC, Canada; and O. Buhler and A. E. Hasha
Recorded Presentation

11:45 AM
6.11
A Mechanistic Model Study of Gravity Waves Forced by Latent Heating
David A. Ortland, NorthWest Research Associates, Redmond, WA; and M. J. Alexander and A. Grimsdell
Recorded Presentation

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