A13G:
Processes and Linkages in the Upper Troposphere and Lower Stratosphere: Observations and Models III Posters

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Session ID#: 12421

Session Description:
The upper troposphere and lower stratosphere (UTLS) is an important region in the atmosphere with significant role in radiative forcing and climate. Despite the growing number of reliable observations and recent advances in the modeling of relevant processes (e.g., convection, cloud microphysical and radiative processes, reactive chemistry, tropical wave interactions), the mechanisms maintaining the composition and structure of the UTLS are still not well understood. This session will explore new developments regarding fundamental processes and linkages in the UTLS, as provided by observations, data assimilation and modeling. We encourage abstract submissions on a wide spectrum of UTLS topics including dynamical and chemical coupling with convection, transport pathways from the troposphere to the stratosphere, cirrus cloud impact and processes, evaluation of aircraft measurements, satellite retrievals and global models, halogen chemistry, and the role of UTLS water vapor in future climate.
Primary Convener:  Rei Ueyama, NASA Ames Research Center, Moffett Field, CA, United States
Conveners:  William John Randel1, Tao Wang2 and Marta Abalos1, (1)National Center for Atmospheric Research, Boulder, CO, United States(2)JPL/NASA/Caltech, Pasadena, CA, United States
Chairs:  William John Randel, National Center for Atmospheric Research, Boulder, CO, United States and Rei Ueyama, NASA Ames Research Center, Moffett Field, CA, United States
OSPA Liaison:  Marta Abalos, National Center for Atmospheric Research, Boulder, CO, United States
Index Terms:

0340 Middle atmosphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0341 Middle atmosphere: constituent transport and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3362 Stratosphere/troposphere interactions [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Evidence for New Particle Formation Acquired from Equator to Pole and From the Surface to 20 Km Altitude (165876)
Mohamed Saad Saad1, James C Wilson2, Brian S Meland1 and Duncan Axisa3, (1)University of Denver, Denver, CO, United States, (2)Univ Denver, Denver, CO, United States, (3)University Corporation for Atmospheric Research, Boulder, CO, United States
Aerosol-Monsoon Interaction, maintenance and variability of the Asian Tropopause Aerosol Layer (ATAL) (126411)
Cheng Yuan1,2, William K-M Lau1,3 and Zhanqing Li3,4, (1)Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States, (2)School of Atmospheric Sciences, Nanjing University, Nanjing, China, (3)University of Maryland College Park, Department of Atmospheric and Oceanic Sciences, College Park, MD, United States, (4)Earth System Science Interdisciplinary Center, University of Maryland, College Park, United States
Probing the Asian Tropopause Aerosol Layer during Summer Monsoon Using in situ Measurements (143587)
Shang Liu, University of Colorado Boulder, Boulder, CO, UNITED STATES, Pengfei Yu, NOAA Earth System Research Laboratory and CIRES CU Boulder, Boulder, CO, United States, Hagen Telg, NOAA Boulder, GML, Boulder, CO, United States, Zhixuan Bai, Key Laboratory of Middle Atmosphere and Global environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, Jianchun Bian, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, Karen Hepler Rosenlof, Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, United States and Ru-Shan Gao, NOAA Boulder, Boulder, CO, United States
Ozone and CO budget over South Asia during the summer monsoon: chemistry transport and lagrangian modelling versus satellite and airborne observations (144602)
Brice Barret, Université Toulouse III - Paul Sabatier, CNRS, LAERO, Toulouse, France and Eric Le Flochmoen, CNRS, Paris Cedex 16, France
Convective Influence on the Lower Stratospheric Water Vapor in the Boreal Summer Asian Monsoon Region (121214)
Rei Ueyama1, Eric J Jensen2 and Leonhard Pfister1, (1)NASA Ames Research Center, Moffett Field, CA, United States, (2)National Center for Atmospheric Research, Atmospheric Chemistry Observations and Modeling Laboratory, Boulder, CO, United States
The simulation of stratospheric water vapor in the NH summer monsoon regions in a suite of WACCM models (182885)
Xinyue Wang, Purdue University, EAPS, West Lafayette, United States, Yutian Wu, Columbia University, New York, United States, Yi Huang, McGill University, Atmospheric and Oceanic Sciences, Montreal, QC, Canada and Simone Tilmes, NSF National Center for Atmospheric Research, Atmospheric Chemistry Observations and Modeling Laboratory, Boulder, United States
Distribution and transport of water vapor in the UTLS over the Tibetan Plateau as inferred from the MLS satellite data and WRF model simulations (160619)
Shipra Jain, National Centre for Medium Range Weather Forecasting, Noida, India and S. C. Kar, Ministry of Earth Sciences India, National Centre for Medium Range Weather Forecasting, New Delhi, India
The Impact of the Asian Summer Monsoon Circulation on the Tropopause (144275)
Yutian Wu, Columbia University, New York, United States and Tiffany Shaw, The University of Chicago, Department of the Geophysical Sciences, Chicago, United States
Age of air and gravitational separation in the stratosphere over Indonesia (128076)
Satoshi Sugawara1, Shigeyuki Ishidoya2, Shuji Aoki3, Shinji Morimoto3, Takakiyo Nakazawa4, Sakae Toyoda5, Yoichi Inai3, Fumio Hasebe6, Chusaku Ikeda7, Hideyuki Honda7, Daisuke Goto8 and Fanny Aditya Putri9, (1)Miyagi University of Education, Sendai, Japan, (2)National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan, (3)Tohoku University, Sendai, Japan, (4)Tohoku Univ, Sendai, Japan, (5)Tokyo Institute of Technology, School of Materials and Chemical Technology, Yokohama, Japan, (6)Hokkaido University, Sapporo, Japan, (7)JAXA Japan Aerospace Exploration Agency, Sagamihara, Japan, (8)National Institute of Polar Research, Tokyo, Japan, (9)National Institute of Aeronautics and Space of the Republic of Indonesia, Bandung, Indonesia
Using e90 to Diagnose UTLS Tracer Transport in WACCM Simulations (122911)
Marta Abalos and William John Randel, National Center for Atmospheric Research, Boulder, CO, United States
A Large Stratospheric Chemical Climate Feedback in GEOS-5 (192911)
Feng Li, Goddard Earth Sciences Technology and Research, Universities Space Research Association, Greenbelt, MD, United States, Paul A Newman, NASA Goddard Space Flight Center, Code 610, Greenbelt, MD, United States and Margaret Hurwitz, NASA Headquarters, Washington, DC, United States
Convective Influence on Short-lived Species in the Tropical Upper Troposphere (164616)
Mijeong Park1, William John Randel1, Louisa K Emmons2, Douglas Edward Kinnison3, Peter F Bernath4, Kaley A Walker5, Chris D. Boone6, Michelle L Santee7, Armin Wisthaler8 and Elliot L Atlas9, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)NSF National Center for Atmospheric Research (NSF NCAR), Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder, United States, (3)National Center for Atmospheric Research, Boulder, United States, (4)Old Dominion University, Chemistry and Biochemistry, Norfolk, VA, United States, (5)University of Toronto, Department of Physics, Toronto, ON, Canada, (6)University of Waterloo, Department of Chemistry, Waterloo, ON, Canada, (7)NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (8)University of Oslo, Department of Chemistry, Oslo, Norway, (9)University of Miami, Miami, United States
The Net Efficiency of Dehydration in the TTL Inferred from In Situ Measurements and Back Trajectory Analysis (192116)
Troy D Thornberry1,2, Andrew W Rollins1,2, Leonhard Pfister3, Rei Ueyama3, Sean M Davis1,4, Thaopaul V Bui5 and Ru-Shan Gao2, (1)University of Colorado / CIRES, Boulder, CO, United States, (2)NOAA Earth System Research Laboratory, Chemical Sciences Division, Boulder, CO, United States, (3)NASA Ames Research Center, Moffett Field, CA, United States, (4)NOAA Earth System Research Laboratory, Chemical Sciences Division, Boulder, United States, (5)NASA Ames Research Center, Moffett Field, United States
Physical processes controlling the distribution of relative humidity in the tropical tropopause layer over the Pacific (149084)
Eric J Jensen1, Rei Ueyama2, Leonhard Pfister2, Thaopaul V Bui3, Jasna V. Pittman4, Troy D Thornberry5, Andrew W Rollins5, Eric J Hintsa6, Glenn S Diskin7, Joshua P DiGangi8, Sarah Woods9, Paul Lawson10 and Karen Hepler Rosenlof11, (1)National Center for Atmospheric Research, Atmospheric Chemistry Observations and Modeling Laboratory, Boulder, CO, United States, (2)NASA Ames Research Center, Moffett Field, CA, United States, (3)NASA Ames Research Center, Moffett Field, United States, (4)Harvard University, Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, United States, (5)NOAA Chemical Sciences Laboratory, Boulder, United States, (6)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (7)NASA Langley Research Center, Hampton, United States, (8)NASA Langley Research Center, Hampton, VA, United States, (9)SPEC Inc., Boulder, CO, United States, (10)SPEC Inc, Boulder, CO, United States, (11)Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, United States
What is the role of laminar cirrus cloud on regulating the cross-tropopause water vapor transport? (196676)
Jie Gong, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Dong Liang Wu, NASA Goddard Space Flight Center, Greenbelt, United States and Victoria Tsai, Stanford University, Stanford, CA, United States
Cirrus cloud characteristics derived from GOSAT TANSO-FTS spectra: Comparing with CALIOP and MODIS observations (129627)
Nawo Eguchi1, Yukio Yoshida2, Yu Someya3, Ryoichi Imasu3, Atsushi Hamada4 and Toshiro Inoue5, (1)Kyushu University, Research Institute for Applied Mechanics, Fukuoka, Japan, (2)NIES National Institute of Environmental Studies, Ibaraki, Japan, (3)Atmosphere and Ocean Research Institute University of Tokyo, Kashiwa-shi, Japan, (4)Atmosphere and Ocean Research Institute University of Tokyo, Tokyo, Japan, (5)Japan Aerospace Exploration Agency, Earth Observation Research Center, Tsukuba, Japan
Simulations of cloud ice and water vapor in the extratropical upper troposphere and lowermost stratosphere (179122)
Hao Ye, Texas A&M University College Station, College Station, TX, United States and Andrew E Dessler, Texas A&M Univ, College Station, TX, United States
The influence of clear-sky radiative cooling due to water vapor on the vertical structure of the extratropical circulation (169779)
David W J Thompson, Colorado State University, Department of Atmospheric Science, Fort Collins, CO, United States, Sandrine Bony, Laboratoire de Météorologie Dynamique, Paris, France and Ying Li, Colorado State University, Fort Collins, CO, United States
The Effects of Deep Convection on Regional Temperatures in the Tropical Upper Troposphere/Lower Stratosphere (152098)
Benjamin Ryan Johnston1, Feiqin Xie2 and Chuntao Liu2, (1)Texas A&M University Corpus Christi, Corpus Christi, United States, (2)Texas A&M University Corpus Christi, Corpus Christi, TX, United States
Role of Stratospheric Cooling on the Tropical Troposphere and the Ocean (167854)
Kunihiko Kodera, Meteorological Research Institute, Ibaraki, Japan, Nawo Eguchi, Kyushu University, Research Institute for Applied Mechanics, Fukuoka, Japan and Rei Ueyama, NASA Ames Research Center, Moffett Field, CA, United States
Anomalous QBO Behavior in 2016 Observed in Tropical Stratospheric Temperatures and Ozone (187593)
William John Randel and Mijeong Park, National Center for Atmospheric Research, Boulder, CO, United States
Interannual variability in equatorial Kelvin waves in the upper troposphere and lower stratosphere, and relation to the background equatorial wind (130007)
Junko Suzuki, JAMSTEC, Kanagawa, Japan, Noriyuki Nishi, Faculty of Science, Fukuoka University, Fukuoka, Japan, Masatomo Fujiwara, Hokkaido University, Faculty of Environmental Earth Science, Sapporo, Japan and Kunio Yoneyama, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
A Hiatus in the Tropopause Layer Change (127102)
Tao Xian, USTC University of Science and Technology of China, Hefei, China
Vertically Resolved Trends and Imprints of Recent Record Years in the UTLS from GPS RO (141644)
Florian Ladstädter1, Hallgeir Wilhelmsen2 and Andrea Karin Steiner1, (1)University of Graz, Wegener Center for Climate and Global Change, Graz, Austria, (2)Wegener Center for Climate and Global Change, University of Graz, Graz, Austria
Towards Improved Agreement Between Measurements of UTLS Water Vapor from Balloons, Aircraft and Satellites (150163)
Dale F Hurst1,2, Emrys Hall1,2, Allen F Jordan1,2, Karen Hepler Rosenlof3, William G Read4, Kaley A Walker5, Chris D. Boone6, Peter F Bernath7, Troy D Thornberry3,8, Andrew W Rollins1,3, Glenn S Diskin9, Joshua P DiGangi10 and Yonghoon Choi9,11, (1)Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States, (2)NOAA Earth System Research Laboratory, Global Monitoring Division, Boulder, CO, United States, (3)NOAA Earth System Research Laboratory, Chemical Sciences Division, Boulder, CO, United States, (4)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (5)University of Toronto, Department of Physics, Toronto, ON, Canada, (6)University of Waterloo, Department of Chemistry, Waterloo, ON, Canada, (7)Old Dominion University, Chemistry and Biochemistry, Norfolk, VA, United States, (8)University of Colorado, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (9)NASA Langley Research Center, Hampton, United States, (10)NASA Langley Research Center, Hampton, VA, United States, (11)Science Systems and Applications, Inc. Hampton, Hampton, VA, United States
NOAA frostpoint hygrometer (FPH) comparisons, uncertainty measurements, and recent instrument improvements (162368)
Emrys Hall1,2, Allen F Jordan3, Dale F Hurst3, Samuel J Oltmans4, Holger Voemel5 and Volker Ebert6, (1)CIRES, Boulder, CO, United States, (2)NOAA Global Monitoring Laboratory, Boulder, United States, (3)Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States, (4)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (5)National Center for Atmospheric Research, Earth Observing Laboratory, Boulder, United States, (6)PTB Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
On the representativity of water vapour measurements at Boulder for global stratospheric trends (151144)
Stefan Lossow, Karlsruhe Institute of Technology, Karlsruhe, Germany

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