|  | JP4.1 | Mechanisms for Enhanced Gravity Wave Activity during Stratospheric Sudden Warmings
Ling Wang, NorthWest Research Associates Inc., Boulder, CO; and M. J. Alexander |
| | JP4.2 | Observed solar-cycle responses and trends in mesospheric water vapor
Ellis Remsberg, NASA Langley Research Center, Hampton, VA |
| | JP4.3 | The lifetime and longitudinal variation of the Kelvin waves around the tropopause and the upper troposphere in the tropic
Junko Suzuki, Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan; and M. Shiotani, N. Nishi, R. Shirooka, and M. Yoshizaki |
| | JP4.4 | Analysis of Ultra-fast Kelvin Waves Simulated by Kyushu University GCM 
Ying-Wen Chen, Kyushu University, Fukuoka, Japan; and S. Miyahara |
| | JP4.5 | Diurnal wind variations observed by an MF radar at Syowa Antarctic Station
Yoshihiro Tomikawa, National Institute of Polar Research, Tokyo, Japan; and M. Tsutsumi |
| | JP4.6 | Current status of superconducting submillimeter-wave limb-emission sounder (SMILES)
Masato Shiotani, Kyoto University, Uji, Kyoto, Japan; and M. Takayanagi |
| | JP4.7 | Higher order approximation of ray theory applied to orographic gravity waves
Manuel Pulido, Universidad Nacional del Nordeste, Corrientes, Argentina; and C. Rodas |
| | JP4.8 | Studies of stratopause structure, evolution and transport from satellite data and new assimilation products
G.L. Manney, JPL, Pasadena, CA; and K. Krueger, M. J. Schwartz, S. Pawson, N. McKee, M. Sienkiewicz, W. Daffer, K. W. Hoppel, N. Livesey, S. Polavarapu, M. G. Mlynczak, E. Remsberg, and J. M. Russell |
| | JP4.9 | Tropical upper-tropospheric ozone variability as observed by the Aura Microwave Limb Sounder
Nathaniel J. Livesey, JPL, Pasadena, CA; and L. Froidevaux, M. Santee, D. Wu, J. Jiang, H. Su, W. Read, A. Lambert, and R. Doherty |
| | JP4.10 | Estimating gravity wave parameters with a genetic algorithm for realistic gravity wave drag profiles
Manuel Pulido, University of Toronto, Toronto, ON, Canada; and S. Polavarapu, T. G. Shepherd, and J. Thuburn |
| | JP4.11 | Solar proton events and their effects on the middle atmosphere as observed by Aura-MLS and ACE-FTS
David Herceg, New Mexico Tech, Socorro, NM; and G. L. Manney, K. Minschwaner, and M. L. Santee |
| | JP4.12 | Multiscale tropical convection: understanding the relationship between convective momentum transport and gravity wave momentum flux
Todd P. Lane, The University of Melbourne, Melbourne, VIC, Australia; and M. W. Moncrieff |
| | JP4.13 | Hydroxyl in the middle atmosphere: relationship to ozone, water vapor, and solar radiation changes
K. Minschwaner, New Mexico Tech, Socorro, NM |