R
Ralph Lehmann
Researcher at Alfred Wegener Institute for Polar and Marine Research
Publications - 72
Citations - 2513
Ralph Lehmann is an academic researcher from Alfred Wegener Institute for Polar and Marine Research. The author has contributed to research in topics: Stratosphere & Ozone depletion. The author has an hindex of 25, co-authored 70 publications receiving 2320 citations.
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Journal ArticleDOI
Unprecedented Arctic ozone loss in 2011
Gloria L. Manney,Gloria L. Manney,Michelle L. Santee,Markus Rex,Nathaniel J. Livesey,Michael C. Pitts,Pepijn Veefkind,Pepijn Veefkind,Eric R. Nash,Ingo Wohltmann,Ralph Lehmann,Lucien Froidevaux,Lamont R. Poole,Mark R. Schoeberl,David Haffner,Jonathan Davies,Valery Dorokhov,Hartwig Gernandt,Bryan J. Johnson,Rigel Kivi,Esko Kyrö,Niels Larsen,Pieternel F. Levelt,Pieternel F. Levelt,Pieternel F. Levelt,Alexander Makshtas,C. Thomas McElroy,Hideaki Nakajima,M. C. Parrondo,David W. Tarasick,Peter von der Gathen,Kaley A. Walker,Nikita S. Zinoviev +32 more
TL;DR: It is demonstrated that chemical ozone destruction over the Arctic in early 2011 was—for the first time in the observational record—comparable to that in the Antarctic ozone hole.
Journal ArticleDOI
Prolonged stratospheric ozone loss in the 1995–96 Arctic winter
Markus Rex,Neil R. P. Harris,Peter von der Gathen,Ralph Lehmann,Geir O. Braathen,E. Reimer,Alexander Beck,Martyn P. Chipperfield,Reimond Alfier,Marc Allaart,Fiona M. O'Connor,Horst Dier,Valery Dorokhov,H. Fast,Manuel Gil,Esko Kyrö,Zenobia Litynska,I. S. Mikkelsen,Mike G. Molyneux,Hideaki Nakane,Justus Notholt,Markku Rummukainen,Pierre Viatte,John C. Wenger +23 more
TL;DR: In this article, the authors reported the occurrence of the highest recorded chemical ozone loss over the Arctic region during the unusually cold 1995-96 Arctic winter. And they observed that ozone loss at some altitudes was observed long after the last exposure to PSCs.
Journal ArticleDOI
Regional climate model of the Arctic atmosphere
Klaus Dethloff,Annette Rinke,Ralph Lehmann,Jens Hesselbjerg Christensen,Michael Botzet,B. Machenhauer +5 more
TL;DR: In this paper, a regional climate model of the whole Arctic using the dynamical package of the HIRLAM and the physical parameterizations of the Hamburg General Circulation Model (ECHAM3) has been applied to simulate the climate of the Arctic north of 65 oN at a 50-km horizontal resolution.
Journal ArticleDOI
Reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions (RECONCILE): activities and results
M. von Hobe,Slimane Bekki,Stephan Borrmann,Francesco Cairo,Francesco D'Amato,G. Di Donfrancesco,Andreas Dörnbrack,A. Ebersoldt,Martin Ebert,Claudia Emde,I. Engel,I. Engel,Manfred Ern,W. Frey,W. Frey,S. Genco,Sabine Griessbach,Jens-Uwe Grooß,T. Gulde,Gebhard Günther,E. Hösen,Lars Hoffmann,Viktória Homonnai,Christopher R. Hoyle,Christopher R. Hoyle,Ivar S. A. Isaksen,David Jackson,Imre M. Jánosi,Roderic L. Jones,Konrad Kandler,Christoph Kalicinsky,A. Keil,Sergey Khaykin,F. Khosrawi,Rigel Kivi,Jayanarayanan Kuttippurath,Johannes C. Laube,Franck Lefèvre,Ralph Lehmann,S. Ludmann,B. P. Luo,Marion Marchand,Jessica Meyer,Valentin Mitev,Sergej Molleker,Ralph Müller,Hermann Oelhaf,Friedhelm Olschewski,Yvan J. Orsolini,Thomas Peter,Klaus Pfeilsticker,C. Piesch,Michael C. Pitts,Lamont R. Poole,Francis D. Pope,Francis D. Pope,Fabrizio Ravegnani,Markus Rex,Martin Riese,Thomas Röckmann,B. Rognerud,Anke-Elisabeth Roiger,Christian Rolf,Michelle L. Santee,Monika Scheibe,Cornelius Schiller,Hans Schlager,M. Siciliani de Cumis,N. Sitnikov,O. A. Søvde,Reinhold Spang,Nicole Spelten,Frode Stordal,O. Sumińska-Ebersoldt,O. Sumińska-Ebersoldt,A. Ulanovski,Jörn Ungermann,S. Viciani,C. M. Volk,M. vom Scheidt,P. von der Gathen,Kaley A. Walker,Tobias Wegner,Ralf Weigel,Stephan Weinbruch,Gerald Wetzel,Frank G. Wienhold,Ingo Wohltmann,Wolfgang Woiwode,I. A. K. Young,I. A. K. Young,Vladimir Yushkov,B. Zobrist,Fred Stroh +93 more
TL;DR: The European project RECONCILE has comprehensively addressed remaining questions in the context of polar ozone depletion, with the objective to quantify the rates of some of the most relevant, yet still uncertain physical and chemical processes as mentioned in this paper.