Session 8 14th Conference on Middle Atmosphere

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Sunday, 19 August 2007

5:00 PM-7:00 PM: Sunday, 19 August 2007


Registration Opens
Location: Ross Island-Morrison (DoubleTree by Hilton Portland)

Monday, 20 August 2007

7:30 AM-5:00 PM: Monday, 20 August 2007


Registration Continues through Friday, 24 August
Location: Ross Island-Morrison (DoubleTree by Hilton Portland)

9:00 AM-12:30 PM: Monday, 20 August 2007

Recording files available
Session 1
Recent Field Investigations of TTL
Location: Multnomah (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Organizers: Andrew Gettelman, NCAR; Rolf Müller, Forschungszentrum Julich; Karen H. Rosenlof, NOAA ESRL
Chairs: Karen H. Rosenlof, NOAA ESRL; Rolf Müller, Forschungszentrum Julich
9:00 AM
Welcoming Remarks

9:25 AM
1.2
9:45 AM
1.3
Water vapour at the tropical tropopause - and above
Cornelius Schiller, Forschungszentrum Julich, Jülich, Germany; and P. Konopka, G. Günther, R. Müller, F. Santos, N. Spelten, and M. Krämer
10:00 AM
1.4
Dehydration processes in the tropical tropopause layer observed by SOWER campaigns in the western and central Pacific
Fumio Hasebe, Hokkaido Univ., Sapporo, Japan; and M. Shiotani, M. Fujiwara, H. Vömel, N. Nishi, S. Y. Ogino, Y. Inai, T. Shibata, S. Iwasaki, I. Matsui, A. Shimizu, N. Sugimoto, S. Saraspriya, N. Komala, and S. J. Oltmans
10:15 AM
1.5
Evidence of lower stratosphere rehydration by convective overshooting of ice particles
Jean-Pierre Pommereau, Centre National de la Recherche Scientifique, Verrieres le Buisson, France; and S. Khaikin, J. Nielsen, T. Christensen, and N. Larsen
10:30 AM
Break

11:00 AM
1.6
Microphysical properties of subvisible cirrus
R. Paul Lawson, SPEC Inc, Boulder, CO; and B. Pilson, B. Baker, Q. Mo, E. Jensen, and P. Bui
11:15 AM
1.7
HIRDLS and CALIPSO observations of cirrus near the tropopause
Steve Massie, NCAR, Boulder, CO; and J. Gille, J. Barnett, and C. Craig
11:30 AM
1.8
Comparison of in situ and satellite measurements of cirrus microphysical and radiative properties
Sean M. Davis, CIRES/Univ. of Colorado, Boulder, CO; and B. H. Kahn, Q. Yue, K. G. Meyer, Z. Zhang, K. S. Schmidt, and L. M. Avallone
11:45 AM
1.9
Results from Aura MLS and the in situ hygrometers during the Costa Rica AVE campaign on the annual cycles of tropical UTLS H2O and CO
William G. Read, JPL, Pasadena, CA; and A. Lambert, H. Su, J. Jiang, D. L. Wu, and N. J. Livesey

12:00 PM
1.10
A climatology of rossby and gravity wave influences in the tropical upper troposphere and lower stratosphere based on SHADOZ (Southern Hemisphere Additional Ozonesondes) Soundings, 1998-2006
Amber L. Loucks, Penn State Univ., University Park, PA; and A. M. Thompson, S. Lee, S. K. Miller, D. M. Shelow, and J. C. Witte

12:15 PM
1.11
Towards a synthesis definition of the TTL
Philip W. Mote, Northwest Research Associates, Bellevue, WA; and S. Fueglistaler, A. E. Dessler, T. J. Dunkerton, I. A. Folkins, and Q. Fu

12:00 PM-1:30 PM: Monday, 20 August 2007


Lunch Break

1:50 PM-5:25 PM: Monday, 20 August 2007

Recording files available
Session 2
Chemistry and Dynamics of the Extratropical UTLS
Location: Multnomah (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chairs: Lorenzo Polvani, Columbia University; Laura Pan, NCAR
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
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
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
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
4:40 PM
2.9
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

6:00 PM-8:00 PM: Monday, 20 August 2007


Icebreaker Reception with Cash Bar
Location: Holladay (DoubleTree by Hilton Portland)

Tuesday, 21 August 2007

8:30 AM-12:00 PM: Tuesday, 21 August 2007

Recording files available
Session 3
Long-Term Change in Middle Atmosphere and the Impact of Solar Variability
Location: Multnomah (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chairs: Cora E. Randall, University of Colorado, ATOC/LASP; Ellis Remsberg, NASA Langley Research Center
8:30 AM
3.1
Solar driven trends in the mesosphere and lower thermosphere as observed by SABER
F. Javier Martin-Torres, AS&M, Hampton, VA; and M. G. Mlynczak, E. Remsberg, B. T. Marshall, E. Thompson, and J. M. Russell III
8:45 AM
3.2
Spatio-temporal observations of tertiary ozone maximum
Viktoria Sofieva, Finnish Meteorological Institute, Helsinki, Finland; and E. Kyrölä, P. T. Verronen, A. Seppälä, J. Tamminen, D. R. Marsh, R. B. Smith, J. L. Bertaux, A. Hauchecorne, F. Dalaudier, D. Fussen, F. Vanhellemont, O. Fanton d’Andon, G. Barrot, M. Guirlet, T. Fehr, and L. Saavedra
9:25 AM
3.4
Solar Effects in the UARS-HALOE Ozone Dataset
Ellis Remsberg, NASA Langley Research Center, Hampton, VA; and G. Lingenfelser
9:40 AM
3.5
Long-term changes of zonally asymmetric ozone and their effects on stratospheric temperature and planetary wave propagation
Axel Gabriel, IAP - Leibniz-Institut für Atmosphärenphysik der Universität Rostock e.V., Kühlungsborn, Germany; and D. Peters, I. Kirchner, and H. F. Graf
9:55 AM
Break

10:30 AM
3.6
Modelling disturbed stratospheric Chemistry during solar induced NOx Intrusions observed by MIPAS-ENVISAT
Thomas Reddmann, Institute for Meteorology and Climate Research, University and Research Center Karlsruhe, Karlsruhe, Germany; and R. Ruhnke, B. Funke, G. Stiller, S. Versick, T. V. Clarmann, W. Kouker, M. Lopez-Puertas, and R. Uhl
10:45 AM
3.7
Effects of energetic particle precipitation on the stratosphere: Solar cycle variability
Cora E. Randall, University of Colorado, ATOC/LASP, Boulder, CO; and S. M. Bailey, P. Bernath, V. L. Harvey, D. R. Marsh, M. Mills, C. Rubbo, J. M. Russell III, and D. E. Siskind
11:00 AM
3.8
Stratospheric Response to Climate/Solar Forcing (Invited Speaker)
David H. Rind, NASA, New York, NY; and J. Lean and C. McLinden
11:25 AM
3.9
The impact of interannual variability on multi-decadal total ozone simulations
Eric L. Fleming, SSAI and GSFC, Greenbelt, MD; and C. H. Jackman, D. Weisenstein, and M. Ko
11:40 AM
3.10
Interannual-to-decadal Variability of Stratospheric Chemistry and Climate during the 20th century
Andreas Fischer, ETH, Zürich, Switzerland; and S. Brönnimann and E. Rozanov

12:00 PM-1:30 PM: Tuesday, 21 August 2007


Lunch Break

1:30 PM-3:30 PM: Tuesday, 21 August 2007


Poster Session 1
Chemistry and Dynamics of the Extratropical UTLS (Poster)
Location: Holladay (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chair: N. J. Livesey, JPL
P1.2
A Tool for the Study of Chemistry and Dynamics of Trace Gases in the Upper Troposphere and Lower Stratosphere
Suraiya P. Ahmad, NASA/GSFC, Greenbelt, MD; and G. G. Leptoukh, J. E. Johnson, J. Y. Li, I. G. Gerasimov, and S. J. Kempler

P1.3
New perspectives on summertime UT/LS ozone over North America from the strategic IONS sounding network (2004, 2006)
Anne M. Thompson, Penn State Univ., University Park, PA; and J. C. Witte, S. J. Oltmans, O. R. Cooper, S. K. Miller, B. F. Taubman, J. E. Yorks, E. Joseph, J. T. Merrill, G. Morris, M. J. Newchurch, K. R. Minschwaner, M. K. Dubey, F. J. Schmidlin, D. W. Tarasick, B. Rappenglueck, B. Lefer, G. Forbes, D. Baumgardner, R. B. Chatfield, and R. B. Pierce

P1.4
Long-range stratospheric ozone contribution to the troposphere during INTEX
Marcus L. Büker, Western Illinois University, Macomb, IL; and M. H. Hitchman, R. B. Pierce, and N. Zachar

P1.5
Comparison of Stratospheric Ozone Modeled by MIMOSA and Observed by Aura-MLS over the Period 2004-2007
Om Prakash Tripathi, JPL, Wrightwood, CA; and T. Leblanc, Y. B. Jiang, L. Froidevaux, and I. S. McDermid

P1.7
Dynamical Variability of Ozone in The UTLS Region Based on Version 5 AIRS Data
Jennifer Wei, NOAA/NESDIS, Camp Springs, MD; and L. Pan and C. D. Barnet

P1.8
The Spontaneous Formation of a Tropopause Inversion Layer in Simple, Dry, Atmospheric General Circulation Models
Seok-woo Son, McGill University, Montreal, QC, Canada; and L. M. Polvani


Poster Session 2
Long-Term Change in Middle Atmosphere and the Impact of Solar Variability: Poster
Location: Holladay (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chair: Ellis Remsberg, NASA Langley Research Center
P2.1
On the dynamical coupling of long-term changes in stratospheric wave one structure and tropospheric Rossby wave developments
Axel Gabriel, IAP - Leibniz-Institut für Atmosphärenphysik der Universität Rostock e.V., Kühlungsborn, Germany; and D. Peters

P2.2
Middle Atmospheric Water vapor Measurements from HALOE, EOS-MLS, and WVMS
G. E. Nedoluha, NRL, Washington, DC; and R. M. Gomez, B. C. Hicks, R. Bevilacqua, J. M. Russell III, B. J. Connor, and A. Lambert

P2.3
Middle atmospheric influences of very large Solar Proton Events in Solar Cycle 23
Charles H. Jackman, NASA/GSFC, Greenbelt, MD; and D. R. Marsh, F. M. Vitt, R. R. Garcia, E. L. Fleming, and G. J. Labow

P2.4
Tropopause in the 21st century
Seok-woo Son, McGill University, Montreal, QC, Canada; and D. W. Waugh and L. M. Polvani

P2.5
A Study of the Observed Increases in Tropical Stratospheric Water Vapor in the Early 1990s
Jonathan E. Wrotny, I.M. Systems Group, College Park, MD; and G. E. Nedoluha

P2.6
Planetary Wave-Induced Ozone Heating and its Effect on Stratospheric Sudden Warmings
John R. Albers, University of California, Davis, Davis, CA; and T. Nathan

P2.7
Cohesive NOAA SBUV/(2) total ozone and SSU temperature datasets and applications to detect long-term variations and changes
Shi-Keng Yang, NOAA/NWS/NCEP/CPC/Wyle, Camp Springs, MD; and C. Long, R. Lin, A. J. Miller, and J. Nash


Poster Session 3
Recent Field Investigations of TTL
Location: Holladay (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chairs: Andrew Gettelman, NCAR; Rolf Müller, Forschungszentrum Julich; Karen H. Rosenlof, NOAA ESRL
P3.2
Analysis of Tropical Stratospheric Upward Mass Fluxes: A Comparison of Models and Observations
Qiong Yang, University of Washington, Seattle, WA; and Q. Fu, A. Gettelman, F. Li, J. Austin, and H. Vomel

P3.3
Quantifying the top of the tropical tropopause Layer from observations
Qiang Fu, Univ. of Washington, Seattle, WA; and Y. Hu and Q. Yang

P3.4
Remote Sensing of TTL Radiation Balance
Daniel R. Feldman, California Institute of Technology, Pasadena, CA; and Y. Yung

P3.5
Tropical thin cirrus and relative humidity viewed by the Atmospheric Infrared Sounder
Brian H. Kahn, JPL, Pasadena, CA; and C. K. Liang, A. Eldering, A. Gettelman, Q. Yue, and K. N. Liou

P3.6
HIRDLS high resolution measurements of the tropical tropopause layer
John Gille, University of Colorado and NCAR, Boulder, CO; and S. Massie, B. Nardi, C. Hartsough, J. Barnett, T. Eden, C. Halvorson, R. Khosravi, D. E. Kinnison, H. Lee, and C. E. Randall

P3.7
Subvisual cirrus cloud observations by using lidars in Kiribati and Indonesia
Suginori Iwasaki, National Defense Academy, Yokosuka, Kanagawa, Japan; and I. Matsui, M. Shiotani, A. Shimizu, T. Shibata, M. Fujiwara, N. Sugimoto, and F. Hasebe

P3.8
Comparison of particle size distributions of subvisual cirrus clouds measured by optical particle counters and a lidar with those calculated by a parcel model
Suginori Iwasaki, National Defense Academy, Yokosuka, Kanagawa, Japan; and K. I. Maruyama, M. Hayashi, S. Y. Ogino, H. Ishimoto, Y. Tachibana, A. Shimizu, I. Matsui, N. Sugimoto, K. Yamashita, K. Saga, K. Iwamoto, Y. Kamiakito, A. Chabangborn, B. Thana, M. Hashizume, T. Koike, and T. Oki

P3.9
Water and nitric acid partitioning in cold cirrus clouds observed during CR-AVE 2006: observation-modeling closure studies
Iulia Gensch, Forschungszentrum Juelich, Institut fuer Chemie und Dynamik der Geosphaere ICG1, Juelich, Germany, Juelich, Germany; and H. Bunz, D. Baumgardner, L. E. Christensen, R. L. Herman, P. Popp, C. R. Webster, T. Peter, and M. Kraemer

P3.10
A mechanism for the TTL upwelling
Jung-Hee Ryu, Texas Tech Univ., Lubbock, TX; and S. Lee

P3.11
Vertically propagating Kelvin waves and tropical tropopause variability
Jung-Hee Ryu, Texas Tech Univ., Lubbock, TX; and S. Lee and S. W. Son

P3.12
Convective Influence Calculations for CR-AVE and TC4
Leonhard Pfister, NASA/Ames Research Center, Moffett Field, CA; and E. Jensen

P3.13
Seasonal and intra-seasonal variations of ozone over the Indochina Peninsula
S. -Y. Ogino, JAMSTEC, Yokosuka, Japan; and M. Fujiwara, M. Shiotani, F. Hasebe, H. Thuy Ha, and N. T. Tan Thanh

P3.14
Transport processes in the tropical tropopause layer (TTL) -- Observations versus multi-annual simulations with CLaMS
Paul Konopka, Forschungszentrum Jülich, Jülich, Germany; and G. Günther, J. U. Grooß, R. Müller, C. Schiller, A. Ulanovsky, C. M. Volk, S. Viciani, and L. Pan

P3.15
The Madden-Julian Oscillation in tropical total ozone
Baijun Tian, UCLA, Pasadena, CA; and Y. Yung, D. E. Waliser, T. Tyranowski, L. Kuai, E. Fetzer, and B. Irion

P3.16
Space-time variations of Equatorial Kelvin wave Activity around the tropical tropopause region
Junko Suzuki, Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, Japan; and M. Shiotani

P3.17
Cirrus observations in the tropical tropopause layer over the western Pacific
Masatomo Fujiwara, Hokkaido Univ., Sapporo, Japan; and S. Iwasaki, A. Shimizu, M. Shiotani, H. Matsuura, Y. Inai, F. Hasebe, I. Matsui, N. Sugimoto, H. Okamoto, K. Yoneyama, A. Hamada, N. Nishi, and F. Immler

3:30 PM-5:20 PM: Tuesday, 21 August 2007

Recording files available
Session 4
Tropical/Extratropical Interactions
Location: Multnomah (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Organizer: Fabrizio Sassi, NCAR
Chair: Fabrizio Sassi, NCAR
3:30 PM
4.1
Influence of the equatorial QBO on the winter circulation in the Northern Hemisphere (Invited Speaker)
Kevin Hamilton, International Pacific Research Center, School of Ocean and Earth Science and Technology, University of Hawaii, Honolulu, HI; and G. J. Boer, P. Liu, W. W. Hsieh, and G. L. Stenchikov
4:35 PM
4.4
ENSO modulation of the QBO effects on the polar vortex in a GCM simulation
Natalia Calvo, Univ. Complutense de Madrid, Madrid, Spain; and M. A. Giorgetta, R. Garcia-Herrera, and E. Manzini
4:50 PM
4.5
QBO variability and its effect on the extratropical circulation in a GCM
James A. Anstey, University of Toronto, Toronto, ON, Canada; and T. G. Shepherd and J. F. Scinocca
5:05 PM
4.6
Modeling the effects of southeast asian monsoon outflow on the austral winter circulation
Marek J. Rogal, AOS Univ. of Wisconsin, Madison, WI; and M. Hitchman and I. Stajner

Wednesday, 22 August 2007

8:30 AM-12:10 PM: Wednesday, 22 August 2007

Recording files available
Session 5
General Middle Atmosphere
Location: Multnomah (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chairs: Anne R. Douglass, NASA/GSFC; Darryn W. Waugh, The Johns Hopkins University
8:30 AM
5.1
Introductory Remarks

8:35 AM
5.2
An updated assessment of stratospheric temperature trends (Invited Speaker)
William J. Randel, NCAR, Boulder, CO; and K. Shine, D. W. J. Thompson, and SPARC Working Group On Stratospheric Temperature Trends
9:00 AM
5.3
Trends in the strength of the Brewer-Dobson circulation and the wintertime Arctic ozone build-up
Feng Li, University of Maryland Baltimore County, Greenbelt, MD; and J. Austin and R. J. Wilson
9:15 AM
5.4
Modeling the downward influence of stratospheric final warming events
Lantao Sun, Univ. of Illinois, Urbana, IL; and W. A. Robinson
9:30 AM
5.5
A new look at stratospheric sudden warmings: vertical structure and coherence
Joss Matthewman, University College London (UCL), London, United Kingdom; and A. J. Charlton, L. M. Polvani, and G. Esler
9:45 AM
5.6
10:00 AM
Break

10:30 AM
5.7
QBO and Annual Cycle Variations in Tropical Lower Stratosphere Trace Gases from HALOE and Aura MLS Observations (Invited Speaker)
Mark R. Schoeberl, Science and Technology Corporation, Columbia, MD; and A. R. Douglass, P. A. Newman, L. Lait, D. Lary, N. J. Livesey, L. Froidevaux, A. Lambert, W. G. Read, M. J. Filipiak, and H. C. Pumphrey

10:55 AM
5.8
A spring time case study of tropospheric ozone column enhancements over North America using a regional model and satellite data
Qing Yang, Pacific Northwest National Laboratory, Richland, WA; and D. Cunnod, Y. Wang, and Y. Choi
11:10 AM
5.9
Dynamics of the coupled system stratosphere/troposphere at strong polar vortex
Nour-Eddine Omrani, Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway; and M. Latif and M. A. Giorgetta

11:25 AM
5.10
Middle and lower atmospheric effects of the total solar eclipse of 4 December 2002 simulated with a high-altitude global model
Stephen Eckermann, NRL, Washington, DC; and D. Broutman, M. T. Stollberg, J. Ma, J. P. McCormack, and T. F. Hogan
11:40 AM
5.11
A seasonal and quasibiennial climatology of Rossby wave breaking in the 320-2000 K layer
Matthew H. Hitchman, University of Wisconsin Madison, Madison, WI; and A. S. Huesmann
11:55 AM
5.12
Impacts of tropical cyclones on the upper troposphere
Eric A. Ray, NOAA/ESRL/CSD, Boulder, CO; and K. H. Rosenlof

12:00 PM-1:30 PM: Wednesday, 22 August 2007


Lunch Break

1:30 PM-3:30 PM: Wednesday, 22 August 2007


Joint Poster Session 1
Joint Session with Air/Sea Interaction on Middle Atmosphere/Troposphere/Ocean Interactions
Location: Holladay (DoubleTree by Hilton Portland)
Hosts: (Joint between the 14th Conference on Middle Atmosphere; and the 15th Conference on Air-Sea Interaction )
Chair: David W. J. Thompson, Colorado State Univ.
JP1.1
The Impact of Tropical Indian Ocean Warming on Southern Hemisphere Polar Climate
Judith Perlwitz, CIRES/Univ. of Colorado and NOAA-ESRL, Boulder, CO; and S. Li, M. Hoerling, and W. Neff

JP1.2
Sub-Monthly Polar Vortex Variability and Stratosphere-Troposphere Coupling in the Arctic
Robert X. Black, Georgia Institute of Technology, Atlanta, GA; and B. A. McDaniel

JP1.3
Response of stratospheric circulation and stratosphere-troposphere exchange to changing sea surface temperatures
Mark A. Olsen, GEST/GSFC, Greenbelt, MD; and M. R. Schoeberl and J. E. Nielsen

JP1.4
EOF Analysis of Temperature Anomalies in the Tropics with Radiosonde Data from the SHADOZ Program
David M. Shelow, Penn State Univ., University Park, PA; and S. Lee, A. M. Thompson, S. K. Miller, A. L. Loucks, and J. C. Witte

JP1.5
Variability of the Antarctic Ozone Hole during the Past Decade as Dictated by the Stratospheric and Tropospheric Meteorology
Craig S. Long, NOAA/NWS/NCEP/CPC, Camp Springs, MD; and S. Zhou, S. K. Yang, and M. Gelman

JP1.6
The Impact of Tropical Sea Surface Temperatures on the Chemistry and Dynamics of the Stratosphere in the GEOSCCM
Luke Oman, NASA Goddard Space Flight Center, Greenbelt, MD; and D. Waugh, R. S. Stolarski, S. Pawson, A. R. Douglass, P. A. Newman, and J. E. Nielsen


Poster Session 4
General Middle Atmosphere (Poster)
Location: Holladay (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chair: Fabrizio Sassi, NCAR
P4.1
The gradient genesis of stratospheric trace species in the subtropics and around the polar vortex
Kazuyuki Miyazaki, Frontier Research Center for Global Change, Tokohama, Japan; and T. Iwasaki

P4.2
NOGAPS-ALPHA stratospheric water vapor simulations during the 2005 and 2006 Northern Hemisphere winters
John McCormack, NRL, Washington, DC; and L. Coy, S. Eckermann, and D. Siskind

P4.3
Assessment of the value of SSMIS for data assimilation in the middle atmosphere
Clay B. Blankenship, NRL, Monterey, CA; and S. D. Swadley, W. Bell, Y. Han, and A. McNally

P4.4
Exploration of stratopause and tropopause evolution in polar winter in satellite data and meteorological analyses
G.L. Manney, JPL & NMTech, Socorro, NM; and K. Krueger, S. Pawson, M. Schwartz, P. Bernath, C. D. Boone, J. R. Walker, K. B. Strawbridge, K. Strong, W. Daffer, N. J. Livesey, M. G. Mlynczak, E. Remsberg, and J. M. Russell III

P4.5
The tropical tape recorder observed in satellite measurements of HCN
Hugh C. Pumphrey, University of Edinburgh, Edinburgh, Scotland, United Kingdom; and J. R. Walker, P. Bernath, and N. J. Livesey

P4.6
URBAN AIR QUALITY MONITORING DEVELOPMENT IN BANDUNG , INDONESIA
Waluyo Eko Cahyono Jr., AER, Bandung, Indonesia


Poster Session 5
Tropical/Extratropical Interactions
Location: Holladay (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Organizer: Fabrizio Sassi, NCAR
Chair: Fabrizio Sassi, NCAR
P5.2
The stratospheric ozone signatures of the Quasi-Biennial Oscillation as observed by the JPL lidar located at Mauna Loa Observatory, HI
Thierry Leblanc, California Institute of Technology, Wrightwood, CA; and I. S. McDermid

P5.3
Sudden stratospheric warming events in a simple stratosphere-mesosphere model
Matthew H.N. Rigby, University of Oxford, oxford, oxfordshire, United Kingdom

P5.4
The impact of the tropical stratosphere on the evolution of the polar night jet
Scott M. Osprey, Univ. of Oxford, Oxford, United Kingdom; and L. J. Gray, N. Butchart, S. Reddy, and A. Bushell

P5.5
Zonal asymmetry in the methane and hydrogen fluoride distribution in the equatorial stratosphere observed by satellites
Hyesun Choi, School of Earth and Environmental Sciences, Seoul National University, Seoul, Korea, Republic of (South); and W. Choi

P5.7
Ozone QBO from SHADOZ tropical ozonesondes
Jacquelyn C. Witte, SSAI, Greenbelt, MD; and M. R. Schoeberl, A. R. Douglass, and A. M. Thompson

3:30 PM-5:30 PM: Wednesday, 22 August 2007

Recording files available
Joint Session 1
Joint Session with Air/Sea Interaction on Middle Atmosphere/Troposphere/Ocean Interactions
Location: Multnomah (DoubleTree by Hilton Portland)
Hosts: (Joint between the 14th Conference on Middle Atmosphere; and the 15th Conference on Air-Sea Interaction )
Organizers: Judith Perlwitz, CIRES/Univ. of Colorado and NOAA-ESRL; Michael A. Alexander, NOAA/Earth System Research Laboratory; David W. J. Thompson, Colorado State Univ.
Cochairs: Judith Perlwitz, CIRES/Univ. of Colorado and NOAA-ESRL; Michael A. Alexander, NOAA/Earth System Research Laboratory
3:30 PM
J1.1
ENSO's influence on the Stratosphere
Dennis L. Hartmann, Univ. of Washington, Seattle, WA
3:50 PM
J1.2
Role of equatorial waves in regulating equatorial cold-point tropopause temperature
Ioana Dima, AIR Worldwide, Boston, MA; and R. Ueyama and J. M. Wallace
4:05 PM
J1.3
Temperature Trends in the Tropical Lower Stratosphere
Karen H. Rosenlof, NOAA ESRL CSD, Boulder, CO; and G. C. Reid
4:20 PM
J1.4
Tropical and Stratospheric influences on extratropical short-term climate variability
Matthew Newman, University of Colorado/CIRES/CDC and NOAA/ESRL/PSD, Boulder, CO; and P. Sardeshmukh
4:40 PM
J1.5
4:55 PM
J1.6
Discriminating between robust and non-robust atmospheric circulation responses to global warming
Michael Sigmond, Univ. of Victoria, Victoria, Canada; and P. J. Kushner and J. Scinocca

5:30 PM-9:00 PM: Wednesday, 22 August 2007


Off-site Banquet at the Oregon Zoo

Thursday, 23 August 2007

8:30 AM-12:00 PM: Thursday, 23 August 2007

Recording files available
Session 6
Gravity Wave Observations, Modeling and Parameterization
Location: Multnomah (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Organizer: Stephen D. Eckermann, NRL
Chair: Jadwiga Richter, NCAR
8:30 AM
6.1
Gravity wave instabilities at large and small amplitudes: competition between wave-wave interactions and wave breaking (Invited Speaker)
David C. Fritts, NorthWest Research Associates, Inc., Colorado Research Associates Division, Boulder, CO

8:55 AM
6.2
Modal and nonmodal perturbations of monochromatic high-frequency gravity waves: Primary nonlinear dynamics
Ulrich Achatz, Leibniz Institute for Atmospheric Physics (IAP), Kuehlungsborn, Germany
9:10 AM
6.3
High resolution satellite observations of mountain waves
M. Joan Alexander, NorthWest Research Associates, Boulder, CO; and H. Teitelbaum, S. D. Eckermann, J. Gille, and J. Barnett
9:25 AM
6.4
Comparison of satellite gravity wave measurements with a global ray tracing experiment
Peter Preusse, Juelich Research Center, 52425 Juelich, Germany; and M. Ern, S. Eckermann, R. H. Picard, J. M. Russell III, and M. G. Mlynczak
9:55 AM
6.6
Three-dimensional characteristics of stratospheric mountain waves during T-REX
James D. Doyle, NRL, Monterey, CA; and W. A. Cooper, V. Grubisic, J. B. Jensen, Q. Jiang, and R. B. Smith
10:10 AM
Break

10:35 AM
6.7
The importance of small-scale gravity waves in the middle atmosphere: a modeller's perspective (Invited Speaker)
Charles McLandress, Department of Physics, University of Toronto, Canada, Toronto, ON, Canada
11:15 AM
6.9
Gravity waves captured in high-resolution global atmospheric analyses, forecasts and climate simulations using the Goddard Earth Observing System (GEOS-5) AGCM/DAS
Julio T. Bacmeister, NASA/GSFC, Greenbelt, MD; and I. S. Song, M. J. Suarez, L. L. Takacs, C. M. Tassone, and P. Pegion
11:30 AM
6.10
Gravity-wave parameterization and the breakdown of Newton's Third Law
John F. Scinocca, CCCma, Victoria, BC, Canada; and O. Buhler and A. E. Hasha
11:45 AM
6.11
A Mechanistic Model Study of Gravity Waves Forced by Latent Heating
David A. Ortland, NorthWest Research Associates, Redmond, WA; and M. J. Alexander and A. Grimsdell

12:00 PM-1:30 PM: Thursday, 23 August 2007


Lunch Break

1:30 PM-3:00 PM: Thursday, 23 August 2007

Recording files available
Session 7
The Past and Future of Middle Atmosphere Modeling: A Session in Honor of Byron A. Boville
Location: Multnomah (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chair: Andrew Gettelman, NCAR
2:20 PM
7.3
2:35 PM
7.4
The Stratospheric response to doubled CO2 in two chemistry-climate models
Margaret M. Hurwitz, Science Systems and Applications, Inc., Greenbelt, MD; and P. Braesicke, O. Morgenstern, and J. A. Pyle

3:30 PM-5:30 PM: Thursday, 23 August 2007


Poster Session 6
Gravity Wave Observations, Modeling and Parameterization
Location: Holladay (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chair: Peter Preusse, Juelich Research Center
P6.1
Lower-stratospheric and upper-tropospheric disturbances observed by radiosondes over Thailand during January 2000
S. -Y. Ogino, JAMSTEC, Yokosuka, Japan; and K. Sato, M. D. Yamanaka, and A. Watanabe

P6.2
Estimation of gravity-wave momentum flux in the Antarctic stratosphere using observations from long-duration balloons
Gillian Boccara, Laboratoire de Météorologie Dynamique, 91128 Palaiseau Cedex, France; and A. Hertzog, R. A. Vincent, and F. Vial

P6.3
Observation of Gravity Waves by infra-red limb-sounding from satellites
Xiuping Yan, University of Leicester, Leicester, United Kingdom; and N. Arnold and J. Remedios

P6.4
Gravity wave and turbulence spectra parameters in the stratosphere retrieved from stellar scintillation measurements by GOMOS
Viktoria Sofieva, Finnish Meteorological Institute, Helsinki, Finland; and A. S. Gurvich and F. Dalaudier

P6.5
Using satellite radiance data to validate resolved and parameterized orographic gravity waves in global models
Stephen Eckermann, NRL, Washington, DC; and J. Ma, D. Broutman, D. L. Wu, M. J. Alexander, J. T. Bacmeister, L. Coy, J. D. Doyle, T. F. Hogan, B. N. Lawrence, and A. Stephens

P6.7
Influences of meridional circulation on driving the SAO in a T213L256 AGCM
Shingo Watanabe, Frontier Research Center for Global Change, Yokohama, Kanagawa, Japan; and Y. Tomikawa, Y. Kawatani, M. Takahashi, and K. Sato

P6.9
Gravity wave sources and spectra appearing in a mesoscale model simulation of the Maritime Continent
A.D. Hassiotis, The Pennsylvania State University, University Park, PA; and T. J. Kane

P6.10
Far-Field Mountain Waves Radiated from Nonlinear Orographic Flow Regimes
John D. Lindeman, George Mason University, Fairfax, VA; and D. Broutman, S. Eckermann, Z. Boybeyi, J. Ma, and J. W. Rottman

P6.12
Testing Lagrangian theories of internal wave spectra
Gary Klaassen, York Univ., Toronto, ON, Canada; and L. Sonmor

P6.13
Modal and nonmodal perturbations of monochromatic inertia-gravity waves: Linear and primary nonlinear dynamics
Ulrich Achatz, Leibniz Institute for Atmospheric Physics (IAP), Kuehlungsborn, Germany


Poster Session 7
Stratospheric Chemistry and Ozone Recovery Posters
Location: Holladay (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chair: V. L. Harvey, University of Colorado, ATOC/LASP
P7.1
Current Status of Superconductive Submillimeter-Wave Limb-Emission Sounder (SMILES)
Masato Shiotani, Kyoto University, Uji, Kyoto, Japan; and M. Takayanagi

P7.2
GOMOS ozone measurements 2002-2007
Erkki Kyrölä, Finnish Meteorological Institute, Helsinki, Finland; and J. Tamminen, V. Sofieva, J. L. Bertaux, A. Hauchecorne, F. Dalaudier, D. Fussen, F. Vanhellemont, O. Hembise, A. Mangin, G. Barrot, M. Guirlet, and T. Fehr

P7.3
Discoveries from the Aura MLS OH and HO2 measurements
Herbert. M. Pickett, JPL, Pasadena, CA; and T. Canty, R. Salawitch, S. Sander, and N. Livesey

P7.4
Comparison in Vortex-Based Coordinates of Lower Stratospheric Ozone Measured by the JPL lidars at Table Mountain Facility, CA and Mauna Loa Observatory, HI and by the Aura-MLS
Thierry Leblanc, California Institute of Technology, Wrightwood, CA; and I. S. McDermid, Y. B. Jiang, and L. Froidevaux

P7.5
A study of stratospheric chlorine partitioning based on new satellite measurements and modeling
Michelle L. Santee, JPL, Pasadena, CA; and I. A. MacKenzie, G. L. Manney, M. P. Chipperfield, P. F. Bernath, K. A. Walker, C. D. Boone, L. Froidevaux, N. J. Livesey, and J. W. Waters

P7.6
Impact of recent Laboratory Measurements of the Absorption Cross Section of ClOOCl on our Understanding of polar Ozone Chemistry: Part I, Theory
Markus Rex, AWI = Alfred Wegener Institute, D14473 Potsdam, Germany; and R. Schofield, T. Canty, R. J. Salawitch, and K. Bayes

P7.7
Measured and modeled HOCl profiles in the mid-latitude stratosphere: implications for ozone loss
Laurie Kovalenko, JPL, Pasadena, CA; and R. J. Salawitch, L. Froidevaux, J. F. Blavier, A. Kleinboehl, N. J. Livesey, J. J. Margitan, R. A. Stachnik, G. Toon, J. W. Waters, K. Jucks, and D. Johnson

P7.9
The sensitivity of polar ozone depletion to proposed Geo-engineering schemes and volcanic eruptions
Simone Tilmes, NCAR, Boulder, CO; and R. Mueller, K. Drdla, and R. J. Salawitch

P7.10
Evaluating the impact of changes in stratospheric circulation on ozone trends and recovery
Anne R. Douglass, NASA/GSFC, Greenbelt, MD; and R. S. Stolarski, P. A. Newman, and S. Pawson

P7.11
Separating ozone from greenhouse gas signals in stratospheric temperature trends
Richard. S. Stolarski, NASA/GSFC, Greenbelt, MD; and A. R. Douglass, P. A. Newman, S. Pawson, M. R. Schoeberl, and J. E. Nielsen

P7.12
Relative contributions of different mechanisms to changes in ozone in the 21st century
Darryn W. Waugh, The Johns Hopkins University, Baltimore, MD; and S. R. Kawa, R. S. Stolarski, S. Pawson, A. R. Douglass, and P. A. Newman

P7.13
On the recovery of Antarctic ozone
Eun-Su Yang, University of Alabama in Huntsville, Huntsville, AL; and D. Cunnold, M. Newchurch, and R. J. Salawitch

P7.14
Dynamics of the Antarctic ozone hole dissipation revealed by ground-based and satellite observations
Kaoru Sato, The University of Tokyo, Tokyo, Japan; and Y. Tomikawa, G. Hashida, H. Nakajima, T. Sugita, and T. Yamanouchi

P7.15
Observed Hemispheric differences in the role of PSCs in denitrification and dehydration
J. M. Alfred, CPI, Springfield, VA; and M. Fromm, G. E. Nedoluha, A. Strawa, and R. Bevilacqua

P7.16
Stratospheric photochemical ozone loss at mid-Latitudes: An overview
Ross J. Salawitch, JPL, Pasadena, CA; and C. Sioris, L. J. Kovalenko, T. Canty, K. Jucks, H. Pickett, B. Sen, G. Toon, and P. Wennberg

P7.18
Photochemistry and transport of carbon monoxide in the middle atmosphere: constraints from satellite observations
Ken Minschwaner, New Mexico Tech, Socorro, NM; and G. L. Manney, N. J. Livesey, H. C. Pumphrey, H. M. Pickett, P. F. Bernath, and C. D. Boone

P7.19
Low-ozone pockets observed by EOS-MLS
V. Lynn Harvey, Univ. of Colorado, Boulder, CO; and C. E. Randall, G. L. Manney, and E. C. Weatherhead


Poster Session 8
The Past and Future of Middle Atmosphere Modeling: A Session in Honor of Byron A. Boville
Location: Holladay (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Chair: Andrew Gettelman, NCAR
P8.2
The linear interpretation of semi-annual oscillations of migrating and nonmigrating diurnal tides in the mesosphere and lower thermosphere, revealed from different general circulation models
Norbert Grieger, Leibniz-Institute of Atmospheric Physics, D-18225 Kuehlungsborn, Germany; and U. Achatz, H. Schmidt, and C. McLandress

P8.3
Middle Atmosphere Climate Modeling and the NOAA Climate Test Bed
Craig S. Long, NOAA/NWS/NCEP/CPC, Camp Springs, MD; and S. Zhou and W. Higgins

P8.4
Towards whole-atmosphere modeling: A coupled model of Integrated Dynamics through Earth's Atmosphere (IDEA)
Rashid A. Akmaev, CIRES/Univ. of Colorado, Boulder, CO; and T. J. Fuller-Rowell, F. Wu, H. Wang, N. Maruyama, M. Iredell, S. Moorthi, H. M. Juang, Y. T. Hou, G. H. Millward, A. D. Richmond, and A. Maute

P8.5
Stratospheric assessments of the NCEP's Climate Forecast System (CFS)
Shuntai Zhou, NOAA/NWS/NCEP/CPC, Camp Springs, MD; and P. Peng, R. Lin, M. Gelman, S. Saha, and C. Long

P8.6
Interannual variability in northern hemisphere mesospheric wintertime dynamics
Lawrence Coy, Naval Research Laboratory, Washington, DC; and D. E. Siskind, S. D. Eckermann, J. P. McCormack, K. W. Hoppel, T. F. Hogan, and A. J. Kochenash

P8.7
THE FREQUENCY AND DYNAMICS OF STRATOSPHERIC SUDDEN WARMINGS IN THE 21ST CENTURY
Andrew J. Charlton, University of Reading, Reading, Berks, United Kingdom; and L. M. Polvani, J. Austin, and F. Li

P8.8

Friday, 24 August 2007

8:30 AM-12:00 PM: Friday, 24 August 2007

Recording files available
Session 8
Stratospheric Chemistry and Ozone Recovery
Location: Multnomah (DoubleTree by Hilton Portland)
Host: 14th Conference on Middle Atmosphere
Cochairs: Michelle L. Santee, JPL; Richard S. Stolarski, NASA/GSFC
8:30 AM
8.1
Welcoming Remarks

8:35 AM
8.2
When will the Antarctic ozone hole recover? (Invited Speaker)
Paul A. Newman, NASA GSFC, Greenbelt, MD; and E. R. Nash, A. R. Douglass, J. E. Nielsen, S. Pawson, and R. S. Stolarski
9:00 AM
8.3
Climate change, ozone recovery, and the stratosphere
Mark P. Baldwin, Northwest Research Associates, Redmond, WA; and M. Dameris and T. G. Shepherd
9:15 AM
8.4
9:30 AM
8.5
Self Match Flight during EUPLEX II 2003 - ‘ClO Match': An examination of chlorine kinetics
Robyn Schofield, AWI = Alfred Wegener Institute, D14473 Potsdam, Germany; and K. Frieler, I. Wohltmann, M. Rex, M. Von Hobe, F. Stroh, G. Koch, T. Peter, T. Canty, and R. J. Salawitch
9:45 AM
8.6
Weekly and interannual variability of Antarctic PSCs from 1998 to 2005
Andrew C. Parker, University of Wisconsin-Madison, Madison, WI; and M. H. Hitchman

10:00 AM
Break

10:30 AM
8.7
10:55 AM
8.8
In-depth analysis of the Umkehr retrieved ozone profiles
I. Petropavlovskikh, CIRES/Univ. of Colorado, Boulder, CO, CO; and V. Fioletov, E. Hare, S. J. Oltmans, S. Godin, and E. Maillard
11:10 AM
8.9
Long-term ozone and temperature changes in the upper stratosphere
Richard. S. Stolarski, NASA/GSFC, Greenbelt, MD; and A. R. Douglass, S. R. Kawa, and D. W. Waugh
11:25 AM
8.10
Impact of mesospheric intrusions on ozone--tracer relations in the stratospheric polar vortex
Rolf Müller, Forschungszentrum Julich, Jülich, Germany; and S. Tilmes, J. U. Grooss, A. Engel, H. Oelhaf, G. Wetzel, N. Huret, M. Pirre, V. Catoire, G. Toon, and H. Nakajima
11:40 AM
8.11
Upper stratospheric and lower mesospheric HOx: Theory and Observation
Timothy Canty, JPL, Pasadena, CA; and H. M. Pickett, B. Drouin, K. Jucks, and R. J. Salawitch