12th Conference on Middle Atmosphere

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Sunday, 3 November 2002

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12:00 AM-12:00 AM: Sunday, 3 November 2002


Sun 3 Nov

5:00 PM-7:00 PM: Sunday, 3 November 2002


Conference Registration

Monday, 4 November 2002

Sunday | Monday | Tuesday | Wednesday | Thursday | top

12:00 AM-12:00 AM: Monday, 4 November 2002


Mon 4 Nov

7:30 AM-7:30 AM: Monday, 4 November 2002


Conference Registration continues through Thursday, 7 November

8:30 AM-8:40 AM: Monday, 4 November 2002


Welcoming Remarks

8:40 AM-1:15 PM: Monday, 4 November 2002


1
Tropics
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
  8:40 AM
1.1
Thermal variability of the tropical tropopause region derived from GPS/MET observations
William J. Randel, NCAR, Boulder, CO

  9:15 AM
1.2
Small-scale turbulence observations in the upper troposphere and lower stratosphere from MST radars
Gregory D. Nastrom, St. Cloud State University, St. Cloud, MN; and T. E. VanZandt, T. Tsuda, and J. Furumoto

  9:30 AM
1.3
Mixing in the region of the subtropical jet: An analysis of high resolution aircraft measurements
Eric A. Ray, NOAA/AL, Boulder, CO; and K. H. Rosenlof, E. C. Richard, and K. K. Kelly

  9:45 AM
1.4
Seasonal variation of ascent rates in the tropical lower stratosphere as inferred from HALOE trace gases
Masanori Niwano, Kyoto University, Kyoto, Japan; and K. Yamazaki and M. Shiotani

  10:00 AM
1.5
The stratospheric QBO in the NCEP reanalyses
Amihan S. Huesmann, University of Wisconsin, Madison, WI; and M. H. Hitchman

  10:15 AM
1.6
The non-linear response of stratospheric ascent to changes in planetary wave forcing and its effect on the QBO
John P. McCormack, NRL, Washington, DC; and D. E. Siskind

  10:30 AM
1.7
Wave drag parameterization in simple models of the quasi-biennial oscillation
Lucy J. Campbell, University of Toronto, Toronto, ON, Canada; and T. G. Shepherd and C. McLandress

 
1.8
Impacts of parameterized-gravity-wave driving of the quasi-biennial oscillation

  10:46 AM
1.10
Isolation from planetary wave breaking of the lower tropical stratosphere
Kirill Semeniuk, MIT, Cambridge, MA; and R. A. Plumb

  11:00 AM
1.14
Effects of Parameterizing Convectively Forced Gravity Wave Drag in NCAR CCM3
Hye-Yeong Chun, Yonsei University, Seoul, Korea; and I. -. S. Song, J. -. J. Baik, and Y. -. J. Kim

  11:15 AM
1.4a
Coffee Break

  11:45 AM
1.10a
Discussion

  11:55 AM
1.10b
Lunch Break

1:30 PM-5:00 PM: Monday, 4 November 2002


2
Ozone
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
  1:30 PM
2.1
A chemical lagrangian model of the stratosphere (CLAMS)
Daniel S. McKenna, NCAR, Boulder, CO; and P. Konopka, J. U. Grooß, G. Gunther, and R. Müller

  2:05 PM
2.2
Sensitivity of modeled ozone recovery to choice of meteorological fields
Anne R. Douglass, NASA/GSFC, Greenbelt, MD; and S. E. Strahan

  2:19 PM
2.3
paper moved to Poster Session 1, New Paper number p1.4a

  2:20 PM
2.4
Effects of past and projected greenhouse gas increases on the stratospheric ozone equilibrium
Michel S. Bourqui, University of Reading, Reading, Berks., United Kingdom; and C. P. Taylor and K. P. Shine

  2:35 PM
2.5
Effects of Volcanic Eruptions on Stratospheric Ozone Recovery
Joan E. Rosenfield, NASA/GSFC, Greenbelt, MD

  2:50 PM
2.6
Understanding past and future northern hemisphere ozone
Theodore G. Shepherd, University of Toronto, Toronto, ON, Canada

  3:05 PM
2.7
Comparison of a 2D photochemical model to data using statistical trend analysis
Richard Stolarski, NASA/GSFC, Greenbelt, MD; and S. Hollandsworth-Frith, C. Jackman, and E. Fleming

  3:20 PM
2.8
Analyses of the extratropical UT/LS: Measurement datasets and MOZART-3
Chu-Feng Wei, University of Illinois, Urbana, IL; and D. J. Wuebbles and D. Kinnison

  3:35 PM
2.9
Long-Term Variability of ozone and temperature in the tropical lower stratosphere: The role of extratropical wave forcing
Lon L. Hood, University of Arizona, Tucson, AZ; and B. E. Soukharev

  3:50 PM
2.10
Interannual variability of ozone in the polar vortex during the fall season
S. Randolph Kawa, NASA/GSFC, Greenbelt, MD; and P. A. Newman, M. R. Schoeberl, R. S. Stolarski, and R. Bevilacqua

  4:05 PM
2.3a
The effect of transport and circulation differences on stratospheric ozone recovery in two 35-year three-dimensional simulations
Susan E. Strahan, University of Maryland, Greenbelt, MD; and A. R. Douglass

  4:20 PM
2.10a
Discussion

  4:30 PM
2.5b
Coffee Break

5:00 PM-5:00 PM: Monday, 4 November 2002


Oral Sessions End for the Day

5:30 PM-5:30 PM: Monday, 4 November 2002


Ice Breaker Reception

Tuesday, 5 November 2002

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12:00 AM-12:00 AM: Tuesday, 5 November 2002


Tue 5 Nov

8:30 AM-8:30 AM: Tuesday, 5 November 2002


Poster Session 1
Poster Session 1 (with coffee)
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
 
P1.1
The evolution of an idealized arctic oscillation event
Brent A. McDaniel, Georgia Tech, Atlanta, GA

 
P1.2
Gravity wave/large-scale flow interaction: a comparison of observation and model prediction
Redina L. Herman, University of Illinois, Urbana, IL; and W. A. Robinson and S. J. Franke

 
P1.3
Radio Aeronomy at Onsala Space Observatory
Peter M. Forkman, Chalmers University of Technology, Onsala, Sweden; and P. Eriksson and A. Winnberg

 
P1.4a
Polar photochemical response to predicted changes in source gas emissions between 2000 and 2030 in the Global Modeling Initiative 3D CTM
David B. Considine, LRC, Hampton, VA; and S. E. Strahan, A. R. Douglass, A. Franz, P. S. Connell, and D. A. Rotman

 
P1.5
A global climatology of inertial instability and Rossby wave breaking
John A. Knox, University of Georgia, Athens, GA; and V. L. Harvey

 
P1.6
Turbulence and wind observation in the tropical tropopause region by the Equatorial Atmosphere Radar
Masayuki Yamamoto, Kyoto University, Kyoto, Japan; and T. Horinouchi, M. Fujiwara, H. Hashiguchi, S. Fukao, and M. D. Yamanaka

 
P1.7
Variability of gravity wave activity over Tromelin island
Fabrice Chane-Ming, Laboratoire de Physique de l'Atmosphère, St Denis de la Réunion, France; and R. A. Vincent, C. Marodon, J. Y. Tourneret, and J. Leveau

 
P1.8
Variability of total ozone over north-western Europe in the 1950s and in the 1990s: Frequency of low-ozone events
S. Brönnimann, University of Arizona, Tucson, AZ; and L. Hood

 
P1.9
What controls the size of the Antarctic ozone hole?
Paul A. Newman, NASA/GSFC, Greenbelt, MD; and E. R. Nash and S. R. Kawa

 
P1.10
PRIMARY AND SECONDARY MAXIMUM OF THE NUMBER OF ASTHMA ATTAKS ON THE PRIMARY AND SECONDARY MAXIMUM OF THE NUMBER OF ASTHMA ATTAKS ON THE TERRYTORY OF THE SITY OF BITOLA-MACEDONIA
Blagojce Mickovski, WMO, Bitola, Macedonia

 
P1.11
A theory for isentropic tracer interrelationships
Noboru Nakamura, University of Chicago, Chicago, IL

 
P1.12
Changes in tropical upwelling a possible cause for increases in stratospheric water vapor?
Karen H. Rosenlof, NOAA/AL, Boulder, CO

 
P1.13
Equatorial Atmosphere Radar: System and First Results
Masayuki Yamamoto, Kyoto University, Kyoto, Japan; and H. Hashiguchi, S. Fukao, M. Yamamoto, T. Tsuda, T. Nakamura, T. Sato, M. Hagio, and Y. Yabugaki

 
P1.14
Exchange and mixing in the vicinity of the subtropical jet
L. Laura Pan, NCAR, Boulder, CO; and P. Konopka, D. McKenna, W. Randel, B. Gary, M. J. Mahoney, and E. Browell

 
P1.15
Gravity wave effects on the mean flow and eddy mixing: possible comparison of the parameterization schemes.
Valery A. Yudin, NCAR, Boulder, CO

 
P1.16
Gravity wave forcing in the stratosphere: Observationalconstraints from UARS
M. Joan Alexander, NorthWest Research Associates, Boulder, CO; and K. H. Rosenlof

 
P1.17
Ground based infrared measurements of stratospheric chemistry from Thule, Greenland
James W. Hannigan, NCAR, Boulder, CO; and M. T. Coffey, A. Goldman, and W. G. Mankin

 
P1.18
lamination in the tropical stratosphere
Hans-Jurg Jost, Bay Area Environmental Research Institute, Moffett Field, CA; and W. Parks

 
P1.19
Lower stratospheric equatorial downward motion during the westerly shear quasi-biennial oscillation phase
Hyunah Lee, NCAR, Boulder, CO; and W. Choi and A. Lambert

http://

 
P1.20
Performance of the Meteolabor "Snow White" chilled-mirror hygrometer in the tropical troposphere: Comparisons with the Vaisala RS80 A/H-Humicap sensors
Masatomo Fujiwara, Kyoto Univ., Uji, Japan; and M. Shiotani, F. Hasebe, H. Voemel, S. Oltmans, P. W. Ruppert, T. Horinouchi, and T. Tsuda

 
P1.21
POAM Observations During the 2002 Antarctic Winter
Douglas R. Allen, NRL, Washington, DC; and R. Bevilacqua, R. Bevilacqua, M. Fromm, K. Hoppel, and G. Nedoluha

 
P1.22
Quantifying asymmetric breaking of Rossby waves
Noboru Nakamura, University of Chicago, Chicago, IL

 
P1.23
Simulation of the 2-day wave in the NCAR Whole Atmosphere Community Climate Model
Rolando R. Garcia, NCAR, Boulder, CO; and F. Sassi


Morning Coffee Break in poster Session room

10:15 AM-1:30 PM: Tuesday, 5 November 2002


3
Satellite Measurements
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
  10:15 AM
3.1
An Overview and Science Results from the SABER Experiment on the Timed Satellite
James M. Russell III, Hampton University, Hampton, VA; and M. Mlynczak, L. Gordley, and et al.

  10:50 AM
3.2
The Aura Mission and the “A-Train”
Mark Schoeberl, NASA/GSFC, Greenbelt, MD; and A. Douglass and E. Hilsenrath

  11:05 AM
3.3
Capabilities and Role of the HIRDLS Experiment on EOS Aura
John Gille, University of Colorado and NCAR, Boulder, CO; and J. Barnett, A. Lambert, M. Coffey, T. Eden, D. Kinnison, W. Mankin, and B. Nardi

  11:20 AM
3.4
Monitoring and Assimilation of MLS Measurements in the DAO Ozone Data Assimilation System
Nathan Winslow, NASA/GSFC, Greenbelt, MD; and I. Stajner and R. Rood

  11:35 AM
3.5
The LIMS Version 6 water vapor distributions
Ellis Remsberg, NASA/LRC, Hampton, VA; and V. L. Harvey, M. Natarajan, and L. Gordley

  11:50 AM
3.5a
Discussion

  12:00 PM
3.5b
Lunch Break

1:30 PM-5:00 PM: Tuesday, 5 November 2002


4
Mesosphere
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
  1:30 PM
4.1
Radar studies of the dynamics of the polar mesosphere
Robert A. Vincent, University of Adelaide, Adelaide, SA, Australia

  2:05 PM
4.2
The dynamics of seasonal variability in the global structure of the diurnal tide
David A. Ortland, NorthWest Research Associates, Bellevue, WA; and C. McLandress and M. J. Alexander

  2:20 PM
4.3
Impact of Tides on the Radiative Budget of the Mesosphere
Anne K. Smith, NCAR, Boulder, CO; and D. R. Marsh

  2:35 PM
4.4
The effects of gravity wave breaking in the upper mesosphere
Fabrizio Sassi, NCAR, Boulder, CO; and B. A. Boville, D. Kinnison, R. R. Garcia, and R. Roble

  2:50 PM
4.5
Generation of the two-day wave as a barotropic instability
Diane Pendlebury, NorthWest Research Associates, Bellevue, WA; and T. J. Dunkerton

  3:05 PM
4.6
OH column abundance over JPL's TMF 1997–2001: Analysis and interpretation
Franklin P. Mills, JPL, Pasadena, CA; and R. P. Cageao, V. Nemtchinov, S. P. Sander, B. Chu, Y. Jiang, M. Allen, E. Karpilovsky, Y. L. Yung, J. Russell III, and E. E. Remsberg

  3:20 PM
4.7
H2O Ice at the Mesopause: HALOE Ice Saturation Regions and PMC
Geoff Crowley, Southwest Research Institute, San Antonio, TX; and J. Olivero, C. Hackert, G. Thomas, J. Russell III, and L. Gordley

  3:35 PM
4.8
Mesospheric clouds, solar influences, and mystery within a changing atmosphere
John J. Olivero, Embry-Riddle University, Daytona Beach, FL; and G. E. Thomas, E. P. Shettle, M. T. DeLand, and S. P. Burton

  3:50 PM
4.9
Parameterization of Non-LTE Source Function with Chemical Production by an Equivalent Two-level Model
Xun Zhu, Johns Hopkins University, Laurel, MD

  4:05 PM
4.10
Turbulence at the tropopause due to breaking Kelvin waves observed by the Equatorial Atmosphere Radar
Masatomo Fujiwara, Radio Science Center for Space and Atmosphere, Kyoto University, Kyoto, Japan; and M. K. Yamamoto, H. Hashiguchi, T. Horinouchi, and S. Fukao

  4:20 PM
4.5a
Coffee Break

  4:50 PM
4.10a
Discussion

5:00 PM-5:00 PM: Tuesday, 5 November 2002


Sessions end for the day

Wednesday, 6 November 2002

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12:00 AM-12:00 AM: Wednesday, 6 November 2002


Wed 6 Nov

8:30 AM-8:30 AM: Wednesday, 6 November 2002


Poster Session 2
Poster Session 2 (with Coffee)
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
 
P2.1
Lidar measurements of middle atmosphere gravity wave climatology at Davis, Antarctica
Andrew R. Klekociuk, Australian Antarctic Division, Kingston, Tasmania, Australia; and R. A. Vincent, A. J. Dowdy, J. L. Innis, and M. M. Lambert

 
P2.2
Non-orographic generation of arctic PSCs during December 1999
Matthew H. Hitchman, University of Wisconsin, Madison, WI; and M. L. Buker

 
P2.3
Observations of Cirrus and Aerosol in the Upper Troposphere
Steven T. Massie, NCAR, Boulder, CO; and W. J. Randel

 
P2.4
Physical Mechanism of the Arctic and Antarctic Oscillations
Evgeny A. Jadin, Central Aerological Observatory, Dolgoprudny, Moscow, Russia; and V. E. Kadygrov

 
P2.5
The temporal trend of CO2 and the mean age of the air in the stratosphere derived from balloon borne whole air measurements

 
P2.6
Retrieval of atmospheric profiles of temperature and trace species from the High Resolution Dynamics Limb Sounder
Alyn Lambert, NCAR, Boulder, CO; and R. Khosravi, H. Lee, D. Edwards, J. Gille, and K. Stone

 
P2.7
Sensitivity Studies for Assimilated Ozone Profiles
Ivanka Stajner, NASA/GSFC, Greenbelt, MD; and N. Winslow, K. Wargan, R. Rood, and S. Pawson

 
P2.8
Stratospheric temperature data continuity
Alvin J. Miller, NOAA/NWS/NCEP/CPC, Camp Springs, MD; and M. E. Gelman, R. Lin, and M. D. Goldberg

 
P2.9
The 6.5-day Wave in the Mesosphere and Lower Thermosphere: Evidence for Baroclinic Instability
Ruth S. Lieberman, Northwest Research Associates, Boulder, CO; and D. Riggin

 
P2.10
Retrieval of vertical abundances for CO and molecules with weak emission lines using the Odin satellite Sub-Millimeter Radiometer measurements
Eric Dupuy, Observatoire Aquitain des Sciences de l'Univers, Floirac, France; and P. Ricaud, J. Urban, N. Lautié, E. LeFlochmoën, C. Jimenez, P. Eriksson, J. De La Noë, D. Murtagh, and M. Olberg

 
P2.11
Interannual variations in stratospheric tracers
Jun Ma, Johns Hopkins University, Baltimore, MD; and D. W. Waugh, P. Newman, A. R. Douglass, and S. Pawson

 
P2.12
Influence of Solar Variability on Stratospheric Dynamics
Alexander Ruzmaikin, JPL, Pasadena, CA

 
P2.13
A Comparison of the Stratospheric Age-Spectra from Data Assimilation Models
Mark Schoeberl, NASA/GSFC, Greenbelt, MD; and A. Douglass Sr., Z. Zhu, and S. Pawson

 
P2.14
April 18-24, 2002: PEM observations of atmospheric energy input and ionization rates determined from precipitating charged particles
Rudy A. Frahm, Southwest Research Institute, San Antonio, TX; and G. Crowley, J. D. Winningham, J. R. Sharber, and L. J. Paxton

 
P2.15
Biological effects of the Earth magnetic field and extra-low- frequency atmospheric pressure oscillations
Yuri P. Gorgo, Kiev Taras Shevchenko National University, Kiev, Ukraine; and T. G. Miroshnik and L. A. Didyk

 
P2.16
Calibration and Validation of the SSMIS Upper Atmosphere Sounding Capability
Steven D. Swadley, NRL, Monterey, CA; and B. Burns

 
P2.17
Descent rate in the Antarctic vortex estimated by ADEOS/ILAS trace gases and its relation to dynamical fields
Nozomi Kawamoto, National Space Development Agency of Japan (NASDA), Tokyo, Japan; and H. Kanzawa and M. Shiotani

 
P2.18
Diagnosis of wave-mean-flow interaction and Lagrangian-mean circulation based on the pressure-isentrope hybrid vertical coordinates
Toshiki Iwasaki, Tohoku University, Sendai, Japan; and D. Tanaka

 
P2.19
Dynamical contributions to long-term total ozone trends in the midlatitude Northern Hemesphere
Grigori N. Nikouline, Swedish Institute of Space Physics, Kiruna, Sweden

 
P2.20
Effect of Short-Term Solar Ultraviolet Flux Variability in a Coupled Model of Photochemistry and Dynamics
Xun Zhu, Johns Hopkins University, Laurel, MD; and J. H. Yee and E. R. Talaat

 
P2.21
A case study of the 2001/2002 winter Polar Arctic stratosphere as inferred from GPS radio occultations
Manuel de la Torre Jurez, JPL/ California Institute of Technology, Pasadena, CA

 
P2.22
A gravity wave induced ice-cloud over Greenland: model validation and investigation of dynamical mechanisms
S. Buss, Institute for Atmospheric and Climate Science, Zurich, Switzerland; and H. Wernli and H. Davies

 
P2.23
A Fast Stratospheric Chemistry Model for General Circulation Models
Chris P. Taylor, The University of Reading, Reading, UK

10:15 AM-1:30 PM: Wednesday, 6 November 2002


5
Long-term Changes
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
  10:15 AM
5.1
What is our understanding of the observed temperature variations and changes in the stratosphere?
V. Ramaswamy, NOAA/GFDL, Princeton, NJ

  10:50 AM
5.2
Trends of stratospheric trace species for the last ten years observed by HALOE and their chemical mechanisms
Wookap Choi, University of Maryland, Baltimore County, MD; and D. Youn, D. J. Wuebbles, and K. O. Patten

  11:05 AM
5.3
The stratospheric circulation during the Eocene: a mechanistic study of the stratospheric response to changes in surface temperature gradients
Jessica L. Neu, Harvard University, Cambridge, MA; and D. B. Kirk-Davidoff, D. P. Schrag, R. A. Plumb, and J. G. Anderson

  11:20 AM
5.4
Response of the Middle Atmosphere to altered depictions of past and future climates
David Rind, NASA, New York, NY; and M. Prather and C. McLinden

  11:35 AM
5.5
A Clear Signal of the 11-year Solar Cycle in Atmospheric Data
Katie Coughlin, University of Washington, Seattle, WA; and K. K. Tung

  11:50 AM
5.5a
Discussion

  12:00 PM
5.5b
Lunch Break

1:30 PM-3:35 PM: Wednesday, 6 November 2002


6
Climate Coupling between Stratosphere -and Troposphere
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
  1:30 PM
6.1
The role of the stratosphere in tropospheric weather & climate
Mark P. Baldwin, Northwest Research Associates, Bellevue, WA

  2:05 PM
6.2
Feedback on Tropospheric Wave Activity from Radiatively Induced Stratospheric Cooling in the Stratosphere in Late Winter
Yongyun Hu, University of Washington, Seattle, WA; and K. K. Tung

  2:20 PM
6.3
Tropospheric response to stratospheric perturbations in a relatively simple general circulation model
Lorenzo M. Polvani, Columbia University, New York, NY; and P. J. Kushner

  2:35 PM
6.4
Dynamical response of the troposphere and stratosphere to radiative equilibrium changes in a simple global circulation model
Masakazu Taguchi, University of Washington, Seattle, WA; and D. L. Hartmann

  2:50 PM
6.5
Changes in stratosphere-troposphere circulation induced by volcanic aerosol
Mihaela Caian, Imperial College of Science, Technology and Medicine, London, United Kingdom; and J. D. Haigh

http://

  3:05 PM
6.5a
Coffee Break

3:30 PM-4:55 PM: Wednesday, 6 November 2002


7
Gravity Waves
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
  3:30 PM
7.1
A meridional scan of the stratosphere over the ocean
Kaoru Sato, National Institute of Polar Research, Tokyo, Japan; and M. Yamamori, S. Ogino, N. Takahashi, Y. Tomikawa, and T. Yamanouchi

  3:45 PM
7.2
A mechanism of enhanced temperature fluctuations by gravity waves in critical layers
Tatiana L. Erukhimova, Texas A&M University, College Station, TX; and V. Y. Trakhtengerts

  4:00 PM
7.3
A representation of the full gravity wave spectrum generated by convection in realistic environmental wind conditions
Jadwiga H. Beres, University of Washington, Seattle, WA; and M. J. Alexander and J. R. Holton

  4:15 PM
7.4
Convectively generated gravity waves simulated throughout the equatorial middle atmosphere
Takeshi Horinouchi, Kyoto University, Uji, Kyoto, Japan

  4:30 PM
7.5
Explicit modeling of gravity-wave breaking above deep convection
Todd P. Lane, NCAR, Boulder, CO; and R. D. Sharman and T. L. Clark

  4:45 PM
7.5a
Discussion

4:55 PM-4:55 PM: Wednesday, 6 November 2002


Sessions End for the day

Thursday, 7 November 2002

Sunday | Monday | Tuesday | Wednesday | Thursday | top

12:00 AM-12:00 AM: Thursday, 7 November 2002


Thurs 7 Nov

8:30 AM-1:30 PM: Thursday, 7 November 2002


8
Polar Stratosphere
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
  8:30 AM
8.1
Denitrification of the Polar Stratosphere
Paul O. Wennberg, California Institute of Technology, Pasadena, CA; and S. Dhaniyala and K. McKinney

  9:05 AM
8.2
Surface crystallization of supercooled droplets in clouds
Azadeh Tabazadeh, NASA/ARC, Moffett Field, CA

  9:20 AM
8.3
Clouds in the winter Arctic tropopause region during SOLVE
Leonhard Pfister, NASA/ARC, Moffett Field, CA; and H. Selkirk, B. Anderson, J. Podolske, G. Sachse, M. Avery, and M. Schoeberl

  9:35 AM
8.4
The role of NOy as a diagnostic of small-scale mixing in a denitrified polar vortex
R. S. Gao, NOAA/AL, Boulder, CO; and P. J. Popp, E. A. Ray, K. H. Rosenlof, M. J. Northway, D. W. Fahey, A. F. Tuck, C. R. Webster, D. F. Hurst, S. M. Schauffler, H. Jost, and T. P. Bui

  9:50 AM
8.5
Influence of the Tibetan High on the south polar vortex: mechanistic modeling and observations
Marek J. Rogal, University of Wisconsin, Madison, WI; and M. H. Hitchman

  10:05 AM
8.6
Evolutional Paths of Stratospheric Polar Vortices
Ping-ping Rong, Johns Hopkins University, Baltimore, MD; and D. Waugh

  10:20 AM
8.7
A climatology of vortex life cycles in the stratosphere and their effect on tracer transport
V. Lynn Harvey, LRC, Hampton, VA; and R. B. Pierce, T. D. Fairlie, and M. H. Hitchman

  10:35 AM
8.8
The influence of vortex edge thickness on Rossby wave breaking
Richard K. Scott, Columbia University, New York, NY; and D. G. Dritschel, L. M. Polvani, and D. W. Waugh

  10:50 AM
8.9
A parameter-sweep experiment on the effect of equatorial QBO on the occurrence of stratospheric sudden warmings
Yoko Naito, Kyoto University, Kyoto, Japan; and M. Taguchi and S. Yoden

  11:05 AM
8.10
Model Studies of Winter Hemisphere stratospheric Flow Regimes
Lesley J. Gary, Rutherford Appleton Laboratory, Chilton, Oxon, England

  11:20 AM
8.5a
Coffee Break

  11:50 AM
8.10a
Discussion

  12:00 PM
8.10b
Lunch Break

1:30 PM-3:35 PM: Thursday, 7 November 2002


9
Tropical Transition Layer
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
  1:30 PM
9.1
Ice cloud formation and dehydration in the tropical tropopause layer
Eric Jensen, NASA/ARC, Moffett Field, CA

  2:05 PM
9.2
Clouds, water vapor and climate in the tropical tropopause region
Andrew Gettelman, NCAR, Boulder, CO

  2:20 PM
9.3
Driving of the annual cycle in tropical tropopause temperatures by localized breaking of synoptic-scale waves
Warwick Norton, University of Oxford, Oxford, United Kingdom; and A. Kerr-Munslow

  2:35 PM
9.4
The connection between stratospheric intrusions and tropical convection
Beatriz Funatsu, Johns Hopkins University, Baltimore, MD; and D. Waugh

  2:50 PM
9.5
The origins of thin cirrus observed in the tropical tropopause layer over the Pacific Ocean: Convective influence case studies from the GTE Pacific Exploratory Missions
Henry B. Selkirk, Bay Area Environmental Research Institute, Moffett Field, CA; and L. Pfister and E. V. Browell

  3:05 PM
9.5a
Coffee Break

3:35 PM-5:10 PM: Thursday, 7 November 2002


10
Transport and Mixing
Sponsor: 12th Conference on the Middle Atmosphere

Papers:
  3:35 PM
10.1
Stratospheric mixing driven by horizontal flow deformations: Satellite and in-situ observations versus transport studies with the Chemical Lagrangian Model of the Stratosphere (CLaMS)
Paul Konopka, Research Center Juelich, Juelich, Germany; and J. U. Grooss, G. Guenther, R. Mueller, M. Riese, D. McKenna, and V. Kuell

  3:50 PM
10.2
Large-scale mixing in the middle atmosphere
Jennifer Verlaine Lukovich, York University, Toronto, ON, Canada; and T. G. Shepherd

  4:05 PM
10.3
Mixing and transport in the tropopause region: quantification techniques and investigation of variability
Emily F. Shuckburgh, Ecole Normale Superieure, Paris, France

  4:20 PM
10.4
Quantifying the tropopause mixing barrier in the Canadian Middle Atmosphere Model
David Sankey, University of Toronto, Toronto, ON, Canada; and T. G. Shepherd

  4:35 PM
10.5
Troposphere-to-stratosphere transport and implications for water vapour in the extratropical lowermost stratosphere
Heini Wernli, ETH, Zurich, Switzerland; and M. Sprenger and C. Schiller

  4:50 PM
10.6
Quantifying cross-tropopause ozone flux over East Asia during TRACE-P
Marcus Lee Büker, University of Wisconsin, Madison, WI; and M. H. Hitchman and R. B. Pierce

  5:05 PM
10.6a
Concluding Remarks

5:10 PM-5:10 PM: Thursday, 7 November 2002


Confernce Ends

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