Session 2 Chemistry and Dynamics of the Extratropical UTLS

Monday, 20 August 2007: 1:50 PM-5:25 PM
Multnomah (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chairs:
Lorenzo Polvani, Columbia University, New York, NY and Laura Pan, NCAR, Boulder, CO

Papers:
1:50 PM
2.1
Studies of the extratropical upper troposphere and lower stratosphere using new trace gas measurements from Aura MLS (Invited Speaker)
Michelle L. Santee, JPL, Pasadena, CA; and G. L. Manney, N. J. Livesey, W. G. Read, and Q. Li

2:15 PM
2.2
Quantifying the trans-Pacific transport of Asian pollution in the upper troposphere with Aura-MLS observations
N. J. Livesey, JPL, Pasadena, CA; and Q. Li, J. Jiang, M. Santee, and J. Waters

2:30 PM
2.3
Investigations of relative humidity in the upper troposphere with ACE and OSIRIS
W.F.J. Evans, North West Research Associates, Bellevue, WA; and A. E. Bourassa and R. Hughes

2:45 PM
2.4
The extratropical tropopause transition layer (ExTL) as seen from ACE
Michaela I. Hegglin, University of Toronto, Toronto, ON, Canada; and P. F. Bernath, C. D. Boone, J. R. Walker, P. Hoor, C. Schiller, and G. L. Manney

3:00 PM
Break

3:30 PM
2.5
How permeable is the tropopause in the vicinity of the subtropical jet ?: Seasonal variability derived from model simulations (CLaMS) and observations (Invited Speaker)
Paul Konopka, Forschungszentrum Julich, Jülich, Germany; and G. Günther, J. U. Grooß, R. Müller, C. Schiller, C. M. Volk, P. Hoor, and L. Pan
Recorded Presentation

3:55 PM
2.6
Transport and mixing of chemical airmasses in idealized baroclinic life cycles
Lorenzo M. Polvani, Columbia University, New York, NY; and G. Esler
Recorded Presentation

4:10 PM
2.7
Mixing processes at the tropical and sub-tropical tropopause layer
Ronan James, LMD, Laboratoire de Meteorologie Dynamique, Paris, France; and B. Legras
Recorded Presentation

4:25 PM
2.8
Transport characteristics of the UTLS region based on tracers with different lifetimes
Simone Tilmes, NCAR, Boulder, CO; and L. Pan, D. Kinnison, and S. Schauffler
Recorded Presentation

4:40 PM
2.9
Classification of Northern Hemisphere stratospheric ozone and water vapor profiles by meteorological regime
Melanie B. Follette, NRC/NRL, Washington, DC; and R. D. Hudson and G. E. Nedoluha
Recorded Presentation

4:55 PM
2.10
Statistical Characteristics of Mutiple Tropopause over the Eastern Asia Based on Operational Radiosonde Data
Jianchun Bian, LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, Beijing, China
Recorded Presentation

5:10 PM
2.11
Coupling of the residual circulation and static stability in the lowermost extratropical stratosphere
Thomas Birner, Colorado State Univ., Fort Collins, CO
Recorded Presentation

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