Agenda Monday,
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1 Agenda Monday, :30 Registration opens Coffee break Peter Hoor Welcome and scientific goals of the workshop Daniel Murphy; Karl Froyd; Pengfei Yu Composition, size, and radiative forcing of the stratospheric aerosol Andrew Rollins; Troy Thornberry; Ru Shan Gao Aircraft observations of SO2 in the Tropical UT/LS Johannes Schneider; Thomas Klimach; Stephan Mertes; Daniel Sauer; Daniel Fütterer; Andreas Minikin; Stephan Borrmann Single particle analysis of aerosol particles and cirrus ice residuals in the UT/LS region over Western Europe Christiane Voigt; Stefan Kaufmann Water vapor and cirrus clouds in mid-latitudes: results from recent aircraft campaigns and future plans Lunch and poster Stephan Borrmann Aerosols and clouds in the tropical UTLS: Properties and processes Martina Krämer; Armin Afchine; Christian Rolf; Nicole Spelten Ice particles over the Asian Monsoon: observations during the field campaign StratoClim Simone Brunamonti; Teresa Jorge; Beiping Luo; Frank Wienhold; Thomas Peter
2 UTLS structure and tracer distributions in the Asian Summer Monsoon Anticyclone inferred from balloon measurements during StratoClim Troy Thornberry; Andrew Rollins; Ru-Shan Gao; Sarah Woods; Paul Bui Insight into the formation processes of high altitude cirrus over the tropical western Pacific during POSIDON Stephan Fueglistaler; Maximilien Bolot Estimating the global atmospheric ice mass and fluxes with CALIOP lidar data Coffee break Mohamadou Diallo; Felix Ploeger; Paul Konopka; Thomas Birner; Rolf Müller; Hella Garny; Bernard Legras; Martin Riese Effects of the natural variability on the Brewer-Dobson circulation and stratospheric trace gases C. Michael Volk; Johannes Wintel; Thorben Beckert; Emil Gerhardt; Valentin Lauther; Silvia Viciani; Francesco D'Amato; Alexey Ulanovsky; Francesco Ravegnani; Francesco Cairo Airborne in situ tracer observations inside the Asian Summer Monsoon anticyclone: first results and implications for trace gas transport Michael Hoepfner; Sören Johansson; Jörn Ungermann; Felix Friedl-Vallon; Carmen Ullwer; Roland Ruhnke; Bärbel Vogel Sounding the Asian Monsoon Upper Troposphere from high-altitude aircraft: results obtained by GLORIA during the StratoClim campaign Felix Plöger; Paul Konopka; Kaley Walker; Martin Riese Quantifying pollution transport from the Asian monsoon anticyclone into the lower stratosphere Christian Rolf; Bärbel Vogel; Peter Hoor; Armin Afchine; Gebhard Günther; Martina Krämer; Rolf Müller; Stefan Müller; Nicole Spelten; Martin Riese Water vapor increase in the northern lower stratosphere by the Asian monsoon anticyclone observed during TACTS/ESMVal campaigns Joern Ungermann; Lukas Krasauskas; Michael Höpfner; Felix Friedl-Vallon; Felix Ploeger A case study of water vapour in-mixing into the LS from GLORIA measurements acquired during the WISE campaign Icebreaker
3 Tuesday, Laura Pan Observational Evidence of Horizontal Transport-Driven Dehydration in the TTL 09:30 Dale Hurst; Sean Davis; Karen Rosenlof; Bill Read; Emrys Hall; Allen Jordan Anomalously Strong and Rapid Drying of the Tropical Lower Stratosphere in 2016: Connections to the QBO and ENSO 09:45 Thomas Birner Tropical tropopause temperature control in a hierarchy of models 10:00 Alison Ming The seasonal cycle in upwelling in the tropical UTLS Kohei Yoshida; Ryo Mizuta How do CMIP5 models drive upwelling in the tropical tropopause layer? 10: Coffee break Theodore Shepherd Stratosphere-troposphere dynamical coupling Chaim Garfinkel Nonlinear response of tropical lower stratospheric temperature and water vapor to ENSO Xiaolu Yan; Paul Konopka; Felix Ploeger; Mengchu Tao; Rolf Müller; Jianchun Bian; Martin Riese ENSO influence on the Asian summer monsoon anticyclone Edward Charlesworth; Thomas Birner; John Albers Transport-Radiation Feedbacks of Ozone in the Tropical Tropopause Layer Mengchu Tao; Laura Pan; Paul Konopka; Shawn Honomichl; Douglas Kinnison; Eric Apel A Lagrangian model diagnostics of stratospheric contributions to the tropical mid-tropospheric air Lunch and poster Marta Abalos; William Randel; Douglas Kinnison; Rolando Garcia; Clara Orbe Changes in UTLS transport in a future climate revealed by the artificial tracer e Hella Garny Trends in the wave forcing of the shallow branch of the Brewer-Dobson circulation and its connection to the subtropical jet in Reanalysis and Models
4 Coffee break Dieter H.W. Peters; Andrea Schneidereit; Alexey Yu. Karpechko; Peter Hitchcock Towards the Predictability of Downward Propagation of Major Warmings Juan Antonio Añel; Petr Šácha; Laura de la Torre Tropical expansion measured by isentropic and potential vorticity fields and age of air Andreas Engel; Harald Boenisch Extending stratospheric mean age time series using AirCore Frauke Fritsch; Roland Eichinger; Stefan Versick; Thomas Reddmann Calculation of mean age of air from realistic tracers and age spectra in EMAC Wednesday, Heini Wernli A tropospheric perspective on extratropical tropopause dynamics Holger Tost; Katharina Kaiser The relevance of Clear Air Turbulence (CAT) for mixing in the UTLS Volkmar Wirth; Paolo Ghinassi Upper tropospheric Rossby wave packets Andreas Schäfler; Martin Wirth; Andreas Fix First collocated observations of ozone and water vapor profiles using a differential absorption lidar during the Wave-driven Isentropic Exchange Campaign Robin Pilch Kedzierski; Katja Matthes; Karl Bumke Wave modulation of the extratropical tropopause inversion layer Coffee break Markus Rapp; Andreas Dörnbrack; Sonja Gisinger; Christiane Voigt; Romy Heller Gravity wave propagation across the tropopause: dynamical processes and effects on trace gas transport Vera Bense; Peter Spichtinger Gravity waves propagating through a tropopause inversion layer - Idealized numerical simulations Aurélien Podglajen; T. Paul Bui; Jonathan M. Dean-Day; Pfister Leonhard; Eric Jensen; M. Joan Alexander; Albert Hertzog;
5 Bernd Kärcher; Riwal Plougonven; William Randel Small-Scale Wind Fluctuations in the Tropical Tropopause Layer from Aircraft Measurements: Occurrence, Nature, and Impact on Vertical Mixing Gergely Bölöni; Sebastian Borchert; Ulrich Achatz Towards the implementation of a prognostic gravity wave parametrization in the ICON model Martin Riese; Peter Hoor; Daniel Kunkel; Martin Kaufmann; WISE-Team Wave-driven Isentropic Exchange (WISE): Campaign overview and first results Hermann Oelhaf; Marleen Braun; Felix Friedl-Vallon; Jens-Uwe Grooss; Michael Höpfner; Sören Johansson; Peter Preusse; Björn-Martin Sinnhuber; Jörn Ungermann; Wolfgang Woiwode; POLSTRACC Team The Arctic UTLS in winter&spring: Chemical and dynamical aspects as derived from GLORIA observations during the POLSTRACC mission Lunch and poster Michaela Hegglin Trends in UTLS composition Anne Thompson; Jacquelyn Witte; Ryan Stauffer Reprocessed SHADOZ Ozone Profiles ( ): Evaluation and Insights into the Tropical UT/LS Ryan Stauffer; Anne Thompson; Jacquelyn Witte A Geophysically-based Global Ozone Profile Climatology using Ozonesondes and MERRA-2 Reanalyses Krzysztof Wargan; Steven Pawson; Luke Oman; Mark Olsen; Clara Orbe; Emma Knowland; Jerald Ziemke Multidecadal changes in the UTLS ozone from the MERRA-2 reanalysis and the GMI chemistry model Katherine Emma Knowland; Lesley Ott; Bryan Duncan; Krzysztof Wargan; Kevin Hodges Stratospheric Intrusion Catalog: A 10-year Compilation of Events Identified by using an Objective Feature Tracking Model with NASA s MERRA-2 Reanalysis Coffee break Karen Rosenlof Is There Evidence that Mid-Latitude Stratospheric Ozone Depletion Occurs in Conjunction with North American Monsoon Convection? Gabriele Stiller; Norbert Glatthor; Stefan Lossow; Johannes Speidel; Udo Grabowski; Sylvia Kellmann; Michael Kiefer; Andrea Linden; Thomas von Clarmann MIPAS-Envisat observations in the Asian monsoon anticyclone
6 17.00 Rolf Müller; Sabine Robrecht; Bärbel Vogel; Jens-Uwe Grooß Chemical ozone loss in the lower stratosphere in mid-latitudes in summer: chemical mechanisms and sensitivities Björn-Martin Sinnhuber; Hermann Oelhaf; POLSTRACC Team Arctic ozone loss in the lowermost stratosphere: Observations from the POLSTRACC campaign and implications Irina Petropavlovskikh; Daan Hubert; Sophie Godin-Beekmann; Robert Damadeo; Birgit Hassler; Viktoria Sofieva; William Ball; Kai-Lan Chang; Kleareti Tourpali and many others LOTUS: challenges for deriving ozone trends in the UTLS Thursday, Andreas Zahn; Harald Bönisch; Florian Obersteiner; Carl Brenninkmeijer; Jonathan Williams; Markus Hermann; Denise Assmann; Peter van Velthoven What can be learned from regular passenger aircraft observations Denise Assmann; Markus Hermann; Andreas Weigelt; Bengt Martinsson; Carl Brenninkmeijer; Armin Rauthe-Schoech; Peter van Velthoven; Harald Boenisch; Andreas Zahn Influence of stratospheric-tropospheric exchange on aerosol particle concentration in the UT/LMS a statistical analysis of aircraft data from the IAGOS-CARIBIC observatory Yann Cohen; Hervé Petetin; Valérie Thouret; Virginie Marécal; Béatrice Josse; Hannah Clark; Bastien Sauvage; Alain Fontaine; Gilles Athier; Romain Blot; Damien Boulanger; Jean-Marc Cousin; Philippe Nédélec Climatology and long-term evolution of ozone and carbon monoxide in the UTLS at northern mid-latitudes, as seen by IAGOS from 1995 to Andreas Petzold; Martina Krämer; Susdanne Rohs; Nicole Spelten; Patrick Neis; Christian Rolf; Florian Berkes; Herman G.J. Smit; Andreas Zahn; Philippe Nédélec; Valerie Thouret Investigating variability and long term changes of water vapour in the UTLS derived from in-situ observations on passenger (IAGOS) and research aircraft (JULIA) William Randel Summary and outlook Coffee break Rapporteurs and discussion
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