SA31C:
The Upper Mesosphere and Lower Thermosphere: Observations, Modeling, and Implications for Future Directions Posters


Submit an Abstract to this Session


Session ID#: 52440

Session Description:
The upper mesosphere and lower thermosphere (MLT) is an important transition zone through which atmospheric disturbances below connect with the thermosphere above.  The MLT harbors key information on dynamics, chemistry, long-term change, vertical coupling, and the role of solar forcing.  Space and ground-based missions provide significant advances in observations of temperature, gas concentrations and radiances, ice layers, particulates which serve as ice nucleation sites, and lower atmosphere dynamics sources. Sophisticated multidimensional models now incorporate new dynamics mechanisms, microphysics calculations, and crucial tools to understand coupling between mesopause ice layers and the local environment. This session discusses advances in both observations and modeling and to discuss the implications of those new results for future directions in MLT science. We solicit papers discussing the composition, structure and variability of the MLT environment, ice nucleation sources and processes, vertical and meridional coupling, model advances and the extent, causes and implications of long-term trends.
Primary Convener:  Scott Martin Bailey, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
Convener:  James M Russell III, Hampton University, Department of Atmospheric and Planetary Sciences, Hampton, VA, United States
Primary Liaison:  Scott Martin Bailey, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
Chairs:  Scott Martin Bailey, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States and James M Russell III, Hampton University, Department of Atmospheric and Planetary Sciences, Hampton, VA, United States
OSPA Liaison:  James M Russell III, Hampton University, Department of Atmospheric and Planetary Sciences, Hampton, VA, United States

Cross-Listed:
  • A - Atmospheric Sciences
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0340 Middle atmosphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3303 Balanced dynamical models [ATMOSPHERIC PROCESSES]
3332 Mesospheric dynamics [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

An Explanation for the Nitrous Oxide Layer Observed in the Mesopause Region (362588)
Christopher Kelly1, Martyn Chipperfield2,3, John M C Plane4, Wuhu Feng2,5, Patrick Sheese6, Kaley A Walker7 and Chris D. Boone8, (1)University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom, (2)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (3)University of Leeds, National Centre for Earth Observation (NCEO), Leeds, United Kingdom, (4)University of Leeds, School of Chemistry, Leeds, LS2, United Kingdom, (5)University of Leeds, National Centre for Atmospheric Science, Leeds, United Kingdom, (6)University of Toronto, Toronto, ON, Canada, (7)University of Toronto, Department of Physics, Toronto, ON, Canada, (8)University of Waterloo, Department of Chemistry, Waterloo, ON, Canada
Mesospheric and lower thermospheric chemistry effects on the thermosphere and ionosphere semiannual oscillations (423703)
McArthur Jones Jr1, John T Emmert2, David E Siskind2, Douglas Patrick Drob3 and Eric K Sutton4, (1)US Naval Research Laboratory, Space Science Divsion, Washington, DC, United States, (2)Naval Research Lab, Washington, DC, United States, (3)Naval Research Lab, Space Science Division, Washington, United States, (4)University of Colorado at Boulder, Space Weather Technology, Research, and Education Center, Boulder, United States
Atomic Oxygen Abundance Derived from SCIAMACHY OH Nightglow Measurements (448811)
Yajun Zhu, Martin Kaufmann, Qiuyu Chen and Jillin Liu, Forschungszentrum Jülich, Jülich, Germany
E-region nitric oxide response to energetic electron precipitation (433944)
Christine Smith-Johnsen, University of Bergen, Bergen, Norway, Hilde Nesse Tyssøy, University of Bergen, Birkeland Centre for Space Science (BCSS), Department of Physics and Technology, Bergen, Norway, Daniel Robert Marsh, University of Leeds, School of Chemistry, Leeds, United Kingdom, Koen Hendrickx, University in Stockholm, Department of Meteorology, Stockholm, Sweden and Yvan Orsolini, Norwegian Institute for Air Research, Kjeller, Norway
An investigation of E and F-region changes over Arecibo induced by a geomagnetic storm (399030)
Shikha Raizada1, Brandon Paul Smith2, Christiano Garnett Marques Garnett Marques Brum3, Nestor Aponte1, Mike Sulzer1 and Phil Perillat1, (1)Arecibo Observatory, Arecibo, PR, United States, (2)Penn State University, Meteorology and Atmospheric Science, State College, PA, United States, (3)University of Central Florida, Florida Space Institute, Florida, United States
An intercomparison of VLF and sounding rocket techniques for measuring the daytime D region ionosphere: Theoretical implications (413552)
David E Siskind, US Naval Research Laboratory, Space Science Division, Washington, DC, United States, Kate Zawdie, U.S. Naval Research Laboratory, Washington, United States, Fabrizio Sassi, Naval Research Lab DC, Washington, United States, Douglas Patrick Drob, Naval Research Lab, Space Science Division, Washington, United States and Martin Friedrich, Graz University of Technology, Graz, Austria
The Chemistry of Nickel in the Mesosphere (373104)
Thomas Peter Mangan1, Shane Daly1, Nathanial T McAdam2 and John M C Plane3, (1)University of Leeds, Leeds, LS2, United Kingdom, (2)University of Leeds, Leeds, United Kingdom, (3)University of Leeds, School of Chemistry, Leeds, United Kingdom
Cosmic dust and metal layers: Study of Ni in the upper atmosphere (378183)
Shane Daly1, Michael Gerding2, Josef Höffner2, Wuhu Feng3 and John M C Plane4, (1)University of Leeds, Leeds, LS2, United Kingdom, (2)Leibniz Institute of Atmospheric Physics at the University of Rostock, Optical and Rocket Soundings, Kühlungsborn, Germany, (3)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (4)University of Leeds, School of Chemistry, Leeds, United Kingdom
Diagnosis of multi-decadal evolution characteristics of middle atmosphere temperature changes (411077)
Xun Zhu1, Rolando R Garcia2, William H Swartz1 and Jeng-Hwa Yee1, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (2)Natl Ctr Atmospheric Research, Boulder, CO, United States
A numerical study of the middle-latitude neutral temperature and wind responses to geomagnetic storms in the mesosphere and lower thermosphere region (440966)
Jingyuan Li, Boulder, CO, United States, Wenbin Wang, National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States, Jianyong Lu, NUIST Nanjing University of Information Science and Technology, Nanjing, China, Tao Yuan, Utah State University, Physics, Logan, UT, United States, Jia Yue, GSFC, NASA, Greenbelt, United States, Xiao Liu, Henan Normal University, Xinxiang, China, Kedeng Zhang, Wuhan University, Wuhan, China, Alan Geoffrey Burns, NCAR, HAO, Boulder, CO, United States, Yongliang Zhang, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States and Zheng Li
Climatology of mesopause region nocturnal temperature, zonal wind, sodium density, and GW momentum flux observed by sodium lidar over Hefei, China (32°N, 117°E) (387677)
Tao Li1, Chao Ban2, Xin Fang3, Jing Li3, Zhaopeng Wu1, Wuhu Feng4, John M C Plane5, Jiangang Xiong6, Daniel Robert Marsh5, Michael J Mills7 and Xiankang Dou3, (1)University of Science and Technology of China, Hefei, China, (2)Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, (3)USTC University of Science and Technology of China, Hefei, China, (4)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (5)University of Leeds, School of Chemistry, Leeds, United Kingdom, (6)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (7)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States
On the Contributions of Photolysis Reactions to the Bottom Side Mesospheric Na Layer Variations. (397202)
Tao Yuan1, Wuhu Feng2, John M C Plane3 and Daniel Robert Marsh3, (1)Utah State University, Physics, Logan, UT, United States, (2)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (3)University of Leeds, School of Chemistry, Leeds, United Kingdom
New look at the nighttime IR emissions of OH(v) and CO2(v) in the MLT (461058)
Peter Panka1, Alexander A Kutepov1, Konstantinos S. Kalogerakis2, Ladislav Rezac3, Artem Feofilov4, Diego Janches5 and Daniel Robert Marsh6, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)SRI International, Center for Geospace Studies, Menlo Park, United States, (3)Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany, (4)Ecole Polytechnique, LMD, Palaiseau Cedex, France, (5)NASA/GSFC, Greenbelt, MD, United States, (6)University of Leeds, School of Chemistry, Leeds, United Kingdom
Climatology of Short-period Planetary Waves in the Upper Atmosphere (412287)
Guiping Liu, University of California Berkeley, Berkeley, CA, United States, Diego Janches, NASA/GSFC, Greenbelt, MD, United States, Scott England, Virginia Polytechnic Institute and State University, Aerospace and Ocean Engineering, Blacksburg, United States and Anthony J Mannucci, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
First Lidar Measurement of Heat Fluxes Induced by the Semidiurnal Tide in the Mesosphere and Lower Thermosphere in Boulder (40°N, 105°W), Colorado (426217)
Xian Lu, Clemson University, Physics and Astronomy, Clemson, SC, United States and Xinzhao Chu, University of Colorado at Boulder, CIRES & Aerospace, Boulder, CO, United States
The Roles of Greenhouse Gas, Solar Cycle Forcing, and Atmospheric Coupling on the Interannual Variability of Temperature near the Mesopause Region (426875)
Scott Martin Bailey1, Cora E Randall2, Mark Eugene Hervig3, David E Siskind4, Brentha Thurairajah1 and James M Russell III5, (1)Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, (2)Univ Colorado, Boulder, CO, United States, (3)GATS Inc., Driggs, United States, (4)Naval Research Lab, Washington, DC, United States, (5)Hampton University, Department of Atmospheric and Planetary Sciences, Hampton, VA, United States
The Role of the Solar Soft X-ray Irradiance on Thermospheric Chemistry and Structure (444833)
Srimoyee Samaddar, Blacksburg, VA, United States, Karthik Venkataramani, Virginia Polytechnic Institute and State University, Blacksburg, United States and Scott Martin Bailey, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
Atmospheric Impacts of a Close Cometary Encounter (362210)
Tasha Aylett1, James Simon Anthony Brooke2, Juan Diego Carrillo Sánchez2, Wuhu Feng3, Daniel Robert Marsh4 and John M C Plane4, (1)University of Leeds, Leeds, LS2, United Kingdom, (2)University of Leeds, Leeds, United Kingdom, (3)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (4)University of Leeds, School of Chemistry, Leeds, United Kingdom

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