SA31C:
Atmospheric Gravity Wave Sources, Propagation, Instabilities, and Regional and Global Effects from the Surface into the Thermosphere and Ionosphere I

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Session ID#: 18258

Session Description:
Atmospheric gravity waves (GWs) play central roles in atmospheric dynamics, structure, and variability extending from the Earth’s surface well into the thermosphere and ionosphere.  Despite these roles, there are many aspects GW dynamics and effects that are poorly understood at present.

This session will include invited and contributed talks and posters addressing all aspects of GW dynamics and effects, including, but not limited to, the following:

1)    GW source dynamics, scales, and meteorological and environmental influences,

2)    GW propagation, filtering, wave-mean flow interactions, forcing of the general circulation and thermal structure, and roles in inter-hemispheric coupling,

3)    GW instability dynamics, mixing, and transports of momentum, heat, and constituents,

4)    gravity wave interactions with tides and planetary waves in the stratosphere, mesosphere, and lower thermosphere,

5)    GW propagation, interactions, and effects impacting the thermosphere and ionosphere, and

6)    recent advances in subgrid-scale GW parameterization schemes.

Primary Convener:  David C Fritts, GATS, Inc., Newport News, VA, United States
Conveners:  Michael J Taylor, Utah State Univ, Logan, UT, United States, Kaoru Sato, The University of Tokyo, Department of Earth and Planetary Science, Tokyo, Japan and Prof. Erdal Yiğit, PhD., NASA Goddard Space Flight Center, Department of Physics and Astronomy, Greenbelt, United States
Chairs:  David C Fritts, GATS, Inc., Newport News, VA, United States and Kaoru Sato, The University of Tokyo, Department of Earth and Planetary Science, Tokyo, Japan
OSPA Liaison:  Pierre-Dominique Pautet, Utah State University, Logan, United States

Cross-Listed:
  • A - Atmospheric Sciences
Index Terms:

3334 Middle atmosphere dynamics [ATMOSPHERIC PROCESSES]
3369 Thermospheric dynamics [ATMOSPHERIC PROCESSES]
3384 Acoustic-gravity waves [ATMOSPHERIC PROCESSES]
4490 Turbulence [NONLINEAR GEOPHYSICS]

Abstracts Submitted to this Session:

Mountain Wave Spectra and Fluxes over Complex Terrain (187027)
Ronald B Smith, Yale University, New Haven, CT, United States and Christopher Gary Kruse, National Center for Atmospheric Research, Boulder, United States
Gravity Waves in the Southern Hemisphere Extratropical Winter in the 7-km GEOS-5 Nature Run (181136)
Laura Angelina Holt1, M Joan Alexander1, Lawrence Coy2, William Putman3, Andrea Molod4 and Steven Pawson5, (1)NorthWest Research Associates Boulder, Boulder, United States, (2)Science Systems and Applications, Inc., Lanham, MD, United States, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (4)Global Modeling and Assimilation Office, NASA GSFC, Greenbelt, United States, (5)NASA Goddard Space Flight Center, Global Modeling and Assimilation Office, Greenbelt, United States
Stratospheric mountain wave attenuation in positive and negative ambient wind shear (186025)
Christopher Gary Kruse, National Center for Atmospheric Research, Boulder, United States and Ronald B Smith, Yale University, New Haven, CT, United States
Deep Orographic Gravity Wave Dynamics over Subantarctic Islands as Observed and Modeled during the Deep Propagating Gravity Wave Experiment (DEEPWAVE) (182696)
Stephen D Eckermann1, Dave Broutman2, Jun Ma2, James D Doyle3, Pierre-Dominique Pautet4, Michael J Taylor5, Katrina Bossert6, Bifford Preston Williams7, David C Fritts7, Ronald B Smith8, David Kuhl9, Karl Hoppel10, Dr. John Patrick McCormack11, Benjamin C Ruston12, Nancy L Baker12, Kevin Viner11, Timothy Whitcomb13, Timothy F. Hogan12 and Melinda Peng12, (1)US Naval Research Laboratory, Space Science Division, Washington, DC, United States, (2)Computational Physics Inc. Springfield, Springfield, VA, United States, (3)U.S. Naval Research Laboratory, Monterey, United States, (4)Utah State University, Logan, United States, (5)Utah State Univ, Logan, UT, United States, (6)GATS Inc. Boulder, Boulder, CO, United States, (7)GATS, Inc., Newport News, VA, United States, (8)Yale University, New Haven, CT, United States, (9)Naval Research Lab, Washington, DC, United States, (10)U.S. Naval Research Laboratory, Remote Sensing Division, Washington, DC, United States, (11)US Naval Research Laboratory, Washington, DC, United States, (12)Naval Research Lab Monterey, Marine Meteorology, Monterey, CA, United States, (13)Naval Research Laboratory, Marine Meteorology Division, Monterey, CA, United States
Effects of Wind Filtering and Ageostrophic Generation on Middle Atmosphere Gravity Wave Activity at Chatanika Alaska (162362)
Colin Charles Triplett, University of Alaska Fairbanks, Fairbanks, United States, Richard L Collins, University of Alaska Fairbanks, Department of Atmospheric Sciences, Fairbanks, AK, United States, Kim Nielsen, Utah Valley University, Orem, UT, United States, V Lynn Harvey, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States and Kohei Mizutani, NICT, Tokyo, Japan
On the kinetic and thermal fluctuations of gravity waves in the strato- and mesosphere as observed by Doppler lidar (154867)
Gerd Baumgarten1, Jens Fiedler2, Jens Hildebrand2, Josef Höffner2, Franz-Josef Luebken2 and Irina Strelnikova3, (1)Leibniz Institute of Atmospheric Physics at the University of Rostock, Optical and Rocket Soundings, Kühlungsborn, Germany, (2)Leibniz-Institute of Atmospheric Physics e.V. at the University Rostock, Kuehlungsborn, Germany, (3)Leibniz Institute of Atmospheric Physics at the University of Rostock, Kühlungsborn, Germany
Gravity Waves in the Presence of Shear during DEEPWAVE (131150)
James D Doyle1, Qingfang Jiang2, Patrick Alexander Reinecke2, Carolyn A. Reynolds3, Stephen D Eckermann4, David C Fritts5, Ronald B Smith6, Michael J Taylor7 and Andreas Dörnbrack8, (1)U.S. Naval Research Laboratory, Monterey, United States, (2)Naval Research Lab, Monterey, CA, United States, (3)U.S. Naval Research Laboratory, Marine Meteorology Division, Monterey, United States, (4)Naval Research Laboratory, Washington, United States, (5)GATS, Inc., Newport News, VA, United States, (6)Yale University, New Haven, CT, United States, (7)Utah State Univ, Logan, UT, United States, (8)DLR, Atmospheric Sciences, Munich, Germany
Effects of small-scale gravity waves of lower atmospheric origin on the mean fields and the migrating diurnal tide in the middle atmosphere and thermosphere (178069)
Prof. Erdal Yiğit, PhD., NASA Goddard Space Flight Center, Department of Physics and Astronomy, Greenbelt, United States and Alexander S Medvedev, Max Planck Inst Solar System R, Gottingen, Germany

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