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Thomas Birner
Researcher at Ludwig Maximilian University of Munich
Publications - 118
Citations - 5563
Thomas Birner is an academic researcher from Ludwig Maximilian University of Munich. The author has contributed to research in topics: Stratosphere & Tropopause. The author has an hindex of 35, co-authored 102 publications receiving 4480 citations. Previous affiliations of Thomas Birner include German Aerospace Center & University of Reading.
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Journal ArticleDOI
The extratropical upper troposphere and lower stratosphere
Andrew Gettelman,Peter Hoor,Laura L. Pan,William J. Randel,Michaela I. Hegglin,Thomas Birner +5 more
TL;DR: In this paper, a comprehensive view of the Ex-UTLS is presented that brings together different definitions of the tropopause, focusing on observed dynamical and chemical structure and their coupling.
Journal ArticleDOI
Defining Sudden Stratospheric Warmings
TL;DR: Sudden stratospheric warmings (SSWs) are large, rapid temperature rises in the winter polar stratosphere, occurring predominantly in the Northern Hemisphere as discussed by the authors, and are associated with a reversal of the climatological westerly zonal-mean zonal winds.
Journal ArticleDOI
On the Lack of Stratospheric Dynamical Variability in Low‐Top Versions of the CMIP5 Models
Andrew Charlton-Perez,Mark P. Baldwin,Thomas Birner,Robert X. Black,Amy H. Butler,Natalia Calvo,Nicholas A. Davis,Edwin P. Gerber,Nathan P. Gillett,Steven C. Hardiman,J. H. Kim,Kirstin Krüger,Yun-Young Lee,Elisa Manzini,Brent A. McDaniel,Lorenzo M. Polvani,Thomas Reichler,Tiffany A. Shaw,Michael Sigmond,Seok-Woo Son,Matthew Toohey,Laura Wilcox,Shigeo Yoden,Bo Christiansen,François Lott,Drew Shindell,Seiji Yukimoto,Shingo Watanabe +27 more
TL;DR: In this paper, the authors describe the main differences in simulations of stratospheric climate and variability by models within the fifth Coupled Model Intercomparison Project (CMIP5).
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Introduction to the SPARC Reanalysis Intercomparison Project (S-RIP) and overview of the reanalysis systems
Masatomo Fujiwara,Jonathon S. Wright,Gloria L. Manney,Lesley J. Gray,James Anstey,Thomas Birner,Sean M. Davis,Sean M. Davis,Edwin P. Gerber,V. Lynn Harvey,Michaela I. Hegglin,Cameron R. Homeyer,John A. Knox,Kirstin Krüger,Alyn Lambert,Craig S. Long,Patrick Martineau,Andrea Molod,B. M. Monge-Sanz,Michelle L. Santee,Susann Tegtmeier,Simon Chabrillat,David G. H. Tan,David Jackson,Saroja Polavarapu,Gilbert P. Compo,Gilbert P. Compo,Rossana Dragani,Wesley Ebisuzaki,Yayoi Harada,Chiaki Kobayashi,Will McCarty,Kazutoshi Onogi,Steven Pawson,Adrian Simmons,Krzysztof Wargan,Jeffrey S. Whitaker,Cheng Zhi Zou +37 more
TL;DR: The Stratosphere-troposphere Processes And their Role in Climate (SPARC) Reanalysis Intercomparison Project (S-RIP) is a coordinated activity to compare reanalysis data sets using a variety of key diagnostics.
Journal ArticleDOI
Multimodel assessment of the upper troposphere and lower stratosphere: Tropics and global trends
Andrew Gettelman,Michaela I. Hegglin,Seok-Woo Son,Jung-Hyun Kim,Masatomo Fujiwara,Thomas Birner,Stefanie Kremser,Markus Rex,Juan A. Añel,Hideharu Akiyoshi,John Austin,Slimane Bekki,P. Braesike,Ch. Brühl,N. Butchart,Martyn P. Chipperfield,Martin Dameris,Sandip Dhomse,Hella Garny,Steven C. Hardiman,Patrick Jöckel,Douglas E. Kinnison,Jean-Francois Lamarque,Eva Mancini,Marion Marchand,Martine Michou,Olaf Morgenstern,Steven Pawson,Giovanni Pitari,D. A. Plummer,John A. Pyle,Eugene Rozanov,John Scinocca,Theodore G. Shepherd,Kiyotaka Shibata,Dan Smale,H. Teyssèdre,W. Tian +37 more
TL;DR: The performance of 18 coupled chemistry climate models (CCMs) in the Tropopause Layer (TTL) is evaluated using qualitative and quantitative diagnostics as mentioned in this paper, using both quantitative and qualitative metrics.