Benedikt Ehard
German Aerospace Center
14 Papers
59 Citations
Benedikt Ehard is an academic researcher from German Aerospace Center. The author has contributed to research in topics: Gravity wave & Stratosphere. The author has an hindex of 11, co-authored 14 publications. Previous affiliations of Benedikt Ehard include Stockholm University.
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Papers
Evaluation of methods for gravity wave extraction from middle-atmospheric lidar temperature measurements
TL;DR: In this article, the authors evaluate commonly used methods of extracting gravity-wave-induced temperature perturbations from lidar measurements and find that the Butterworth filter performs best if gravity waves over a wide range of periods are extracted from LIDAR temperature measurements, while the running mean method gives good results if only gravity waves with short periods are analyzed.
Influences of source conditions on mountain wave penetration into the stratosphere and mesosphere
TL;DR: In this article, a Rayleigh/Raman lidar was used to detect atmospheric gravity wave (GW) activity and characteristics from 557 hours of high-resolution lidar data recorded between June and November 2014 in an altitude range between 28 and 76 km.
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Horizontal propagation of large-amplitude mountain waves into the polar night jet
Benedikt Ehard,Bernd Kaifler,Andreas Dörnbrack,Peter Preusse,Stephen D. Eckermann,Martina Bramberger,Sonja Gisinger,Natalie Kaifler,B. Liley,Johannes Wagner,Markus Rapp,Markus Rapp +11 more
TL;DR: In this paper, the authors analyzed a large-amplitude mountain wave event, which was observed by a ground-based lidar above New Zealand between 31 July and 1 August 2014 and found that the propagation of mountain waves into the middle atmosphere is influenced by two different processes at different stages of the event.
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Observed versus simulated mountain waves over Scandinavia – improvement of vertical winds, energy and momentum fluxes by enhanced model resolution?
Johannes Wagner,Andreas Dörnbrack,Markus Rapp,Sonja Gisinger,Benedikt Ehard,Martina Bramberger,Benjamin Witschas,Fernando Chouza,Stephan Rahm,Christian Mallaun,Gerd Baumgarten,Peter Hoor +11 more
TL;DR: In this article, two mountain wave events over northern Scandinavia in December 2013 are analyzed by means of airborne observations and global and mesoscale numerical simulations with horizontal mesh sizes of 16, 7.2, 2.4 and 0.8 km.
Atmospheric Conditions during the Deep Propagating Gravity Wave Experiment (DEEPWAVE)
Sonja Gisinger,Andreas Dörnbrack,Vivien Matthias,James D. Doyle,Stephen D. Eckermann,Benedikt Ehard,Lars Hoffmann,Bernd Kaifler,Christopher G. Kruse,Markus Rapp,Markus Rapp +10 more
TL;DR: In this article, the results of a comprehensive analysis of the atmospheric conditions during the Deep Propagating Gravity Wave Experiment (DEEPWAVE) campaign in austral winter 2014 are described.
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