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Benjamin Witschas
Researcher at German Aerospace Center
Publications - 70
Citations - 1194
Benjamin Witschas is an academic researcher from German Aerospace Center. The author has contributed to research in topics: Lidar & Wind speed. The author has an hindex of 18, co-authored 53 publications receiving 936 citations.
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Journal ArticleDOI
Does Strong Tropospheric Forcing Cause Large-Amplitude Mesospheric Gravity Waves? A DEEPWAVE Case Study
Martina Bramberger,Andreas Dörnbrack,Katrina Bossert,Benedikt Ehard,David C. Fritts,Bernd Kaifler,Christian Mallaun,Andrew Orr,P.-Dominique Pautet,Markus Rapp,Markus Rapp,Michael J. Taylor,Simon Vosper,Bifford P. Williams,Benjamin Witschas +14 more
TL;DR: The DEEPWAVE (deep-propagating wave experiment) campaign was designed for an airborne and ground-based exploration of gravity waves from their tropospheric sources up to their dissipation at high altitudes as mentioned in this paper.
Journal ArticleDOI
The North Atlantic Waveguide and Downstream Impact Experiment
Andreas Schäfler,George C. Craig,Heini Wernli,Philippe Arbogast,James D. Doyle,Ron McTaggart-Cowan,John Methven,Gwendal Rivière,Felix Ament,Maxi Boettcher,Martina Bramberger,Quitterie Cazenave,Richard Cotton,Susanne Crewell,Julien Delanoë,Andreas Dörnbrack,André Ehrlich,Florian Ewald,Andreas Fix,Christian M. Grams,Suzanne L. Gray,Hans Grob,Silke Groß,Martin Hagen,Ben Harvey,Lutz Hirsch,Marek Jacob,Tobias Kölling,Heike Konow,Christian Lemmerz,Oliver Lux,Linus Magnusson,Bernhard Mayer,Mario Mech,Richard W. Moore,Jacques Pelon,Julian F. Quinting,Stephan Rahm,Markus Rapp,Marc Rautenhaus,Oliver Reitebuch,Carolyn A. Reynolds,Harald Sodemann,Thomas Spengler,Geraint Vaughan,Manfred Wendisch,Martin Wirth,Benjamin Witschas,Kevin Wolf,Tobias Zinner +49 more
TL;DR: The North Atlantic Waveguide and Downstream Impact Experiment (NAWDEX) explored the impact of diabatic processes on disturbances of the jet stream and their influence on downstream high-impact weather through the deployment of four research aircraft, each with a sophisticated set of remote-sensing and in situ instruments, and coordinated with a suite of ground-based measurements as discussed by the authors.
Journal ArticleDOI
Coherent and spontaneous Rayleigh-Brillouin scattering in atomic and molecular gases and gas mixtures
MO Vieitez,van E-J Duijn,Wim Ubachs,Benjamin Witschas,A. S. Meijer,de As Wijn,NJ Nico Dam,van de W Willem Water +7 more
TL;DR: In this paper, Rayleigh-brillouin scattering in gases of N{sub 2, O {sub 2}, and SF{sub 6} molecules, Kr atoms, and He-Xe and He CO{sub2} mixtures at pressures ranging from 1 to 3 bar and using two different experimental setups.
Journal ArticleDOI
First validation of Aeolus wind observations by airborne Doppler wind lidar measurements
Benjamin Witschas,Christian Lemmerz,Alexander Geiß,Oliver Lux,Uwe Marksteiner,Stephan Rahm,Oliver Reitebuch,Fabian Weiler +7 more
TL;DR: In this article, the first ever wind lidar in space developed by the European Space Agency (ESA) has been providing profiles of the component of the wind vector along the instrument's line of sight (LOS) on a global scale.
Journal ArticleDOI
Daytime measurements of atmospheric temperature profiles (2-15 km) by lidar utilizing Rayleigh-Brillouin scattering.
TL;DR: A novel method for measuring atmospheric temperature profiles by lidar during daytime for heights of 2-15.3 km, with a vertical resolution of 0.3-2.2 km, using Rayleigh-Brillouin scattering, assuming standard atmospheric pressure conditions.