JpGU-AGU Joint Meeting 2020

Session information

[E] Oral

A (Atmospheric and Hydrospheric Sciences ) » A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS08] Stratosphere-troposphere interaction

convener:Takatoshi Sakazaki(Graduate School of Science, Kyoto University), Takenari Kinoshita(Japan Agency for Marine-Earth Science and Technology), Pu Lin(Princeton University/NOAA Geophysical Fluid Dynamics Laboratory), Peter Hitchcock(Cornell University)

The dynamical, radiative, and chemical processes involved in the interactions between the stratosphere and troposphere are essential for understanding the present and future climate. Both observed data and high-resolution models have now clearly demonstrated that stratospheric processes can affect various tropospheric phenomena. Recently, processes coupling the troposphere and stratosphere in the tropical region have become a new focus.
It has also been shown that the accuracy of tropospheric sub-seasonal and seasonal scale forecasts can be improved by more accurate representations of the stratosphere. As a result, interest is increasing in the predictability and reproducibility of specific stratospheric phenomena, including the Quasi-Biennial Oscillation (QBO) and its recent disruption as well as Stratospheric Sudden Warmings (SSW).
This session will highlight recent progress in our understanding of stratosphere-troposphere interaction. We welcome studies of these and related phenomena in the troposphere and stratosphere (and mesosphere) based on observation, models and theory. Further, this session builds upon the middle atmosphere session traditionally held at the JpGU annual meetings and aims to provide a platform for sharing recent findings and promoting international collaborations on this topic.

*Antara Banerjee1,2, John C. Fyfe3, Lorenzo M. Polvani4, Darryn Waugh5,6, Kai-Lan Chang1,2 (1.Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, USA, 2.Chemical Sciences Division, National Oceanic and Atmospheric Administration/Earth System Research Laboratory, Boulder, Colorado, USA, 3.Canadian Centre for Climate Modelling and Analysis, Environment and Climate Change Canada, Victoria, British Columbia, Canada, 4.Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA, 5.Department of Earth and Planetary Sciences, The John Hopkins University, Baltimore, Maryland, USA., 6.School of Mathematics and Statistics, University of New South Wales, Sydney, New South Wales, Australia)

*Blanca Ayarzaguena1, Andrew J. Charlton-Perez2, Amy H Butler3, Peter Hitchcock4, Isla R. Simpson5, Lorenzo Polvani6, Neal Butchart7, Edwin Gerber8, Lesley Gray9, Birgit Hassler10, Pu Lin11, François Lott12, Elisa Manzini13, Ryo Mizuta14, Clara Orbe15, Scott Osprey9, David Saint-Martin16, Michael Sigmond17, Masakazu Taguchi18, Evgeny Volodin19, Singo Watanabe20 (1.Departamento de Física de la Tierra y Astrofísica, Universidad Complutense de Madrid, Spain, 2.Department of Meteorology, University of Reading, UK, 3.Cooperative Institute for Environmental Sciences (CIRES)/National Oceanic and Atmospheric Administration (NOAA) Chemical Sciences Division, USA, 4.Department of Earth and Atmospheric Sciences, Cornell University, USA, 5.Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, USA, 6.Columbia University, USA, 7.Met Office Hadley Centre, UK, 8.Courant Institute of Mathematical Sciences, New York University, USA, 9.NCAS-Climate, Department of Physics, University of Oxford, UK, 10.Deutsches Zentrum für Luft-und Raumfahrt (DLR), Oberpfaffenhofen, Germany, 11.Atmospheric and Oceanic Sciences Program, NOAA, USA,, 12.Laboratoire de Météorologie Dynamique, Ecole Normale Supérieure, France, 13.Max-Planck-Institut für Meteorologie, Germany, 14.Meteorological Research Institute, Japan, 15.NASA Goddard Institute for Space Studies, USA, 16.Centre National de Recherches Météorologiques (CNRM), Université de Toulouse, Météo-France, CNRS, Toulouse, France, 17.Canadian Centre for Climate Modelling and Analysis Environment and Climate Change, Canada, 18.Department of Earth Science, Aichi University of Education, Kariya, Japan, 19.Marchuk Institute of Numerical Mathematics, Russia, 20.Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Japan)

*Masatomo Fujiwara1, Tetsu Sakai2, Koichi Shiraishi3, Masahiko Hayashi3, Noriyuki Nishi3, Shin-Ya Ogino4, Prabir Patra4, Taku Umezawa5, Yoichi Inai6, Masato Shiotani7, Nawo Eguchi8, Takashi Shibata9, Sergey Khaykin10, Laura L. Pan11 (1.Faculty of Environmental Earth Science, Hokkaido University, 2.Meteorological Research Institute, JMA , 3.Faculty of Science, Fukuoka University, 4.JAMSTEC, 5.NIES, 6.Tohoku University, 7.RISH, Kyoto University, 8.Kyushu University, 9.Nagoya University, 10.LATMOS/IPSL, UVSQ, Sorbonne Universites, CNRS, 11.NCAR)

Discussion (3:44 PM - 3:45 PM)