Session 2 Upper Troposphere/Lower Stratosphere II

Monday, 8 June 2009: 10:20 AM-12:20 PM
Pinnacle A (Stoweflake Resort and Confernce Center)
Host: 15th Conference on Middle Atmosphere
Linnea M. Avallone, University of Colorado, Laboratory for Atmospheric and Space Physics, Boulder, CO
Ellis Remsberg, NASA Langley Research Center, Sciences Directorate, Hampton, VA

10:20 AM
Simulation of the atmospheric tape recorder signal in HCN
Robert Walter, Forschungszentrum Jülich, Juelich, Germany; and R. Müller, P. Konopka, G. Günther, J. Grooß, A. Heil, M. Schultz, M. Riese, and H. C. Pumphrey
10:40 AM
Potential vorticity as a barrier to exchange between the upper troposphere and lowermost stratosphere
John C. Gille, University of Colorado and NCAR, Boulder, CO; and S. Karol, V. Yudin, D. Kinnison, and B. Nardi

11:00 AM
Clouds and water vapor at the tropical tropopause
Leonhard Pfister, NASA, Moffett Field, CA; and E. Jensen

11:20 AM
Seasonal to long-term variations of water vapor in the tropical lower stratosphere observed with balloon-borne hygrometers
Masatomo Fujiwara, Hokkaido University, Sapporo, Japan; and F. Hasebe, M. Shiotani, H. Vömel, S. Y. Ogino, S. Iwasaki, N. Nishi, T. Shibata, K. Shimizu, J. Valverde-Canossa, H. B. Selkirk, and S. J. Oltmans
11:40 AM
Hirdls and Calipso observations of tropical cirrus
Steve Massie, NCAR, Boulder, CO; and J. Gille, C. Craig, R. Khosravi, J. Barnett, and D. M. Winker

12:00 PM
Observations of trace gases during CARIBIC flights
Angela K. Baker, Max Planck Institute for Chemistry, Mainz, Germany; and C. A. M. Brenninkmeijer, D. E. Oram, D. A. O'Sullivan, T. J. Schuck, and F. Slemr
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