Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Benedikt Ehard"'
Autor:
Pierre-Dominique Pautet, Sonja Gisinger, Johannes Wagner, Benedikt Ehard, Markus Rapp, Tanja Portele, Andreas Dörnbrack
Publikováno v:
Publications
The impact of transient tropospheric forcing on the deep vertical mountain-wave propagation is investigated by a unique combination of in situ and remote sensing observations and numerical modeling. The temporal evolution of the upstream low-level wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88e3b0aac1ae27d317ca0bd5f200961b
https://doi.org/10.1175/mwr-d-17-0080.1
https://doi.org/10.1175/mwr-d-17-0080.1
Autor:
Andreas Dörnbrack, Markus Rapp, Sonja Gisinger, Bernd Kaifler, Alexander Kozlovsky, Natalie Kaifler, Benedikt Ehard, Mark Lester, B. Liley, Rigel Kivi
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 162:16-27
Two Rayleigh lidars were employed at a southern-hemisphere mid-latitude site in New Zealand (45°S) and a northern-hemisphere high-latitude site in Finland (67°N) in order to observe gravity waves between 30 and 85 km altitude under wintertime condi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0f5c2f437ebea7bfeade17636f1c680
https://doi.org/10.1016/j.jastp.2017.03.003
https://doi.org/10.1016/j.jastp.2017.03.003
Autor:
Peter Hoor, Markus Rapp, Fernando Chouza, Benjamin Witschas, Andreas Dörnbrack, Martina Bramberger, Johannes Wagner, Sonja Gisinger, Gerd Baumgarten, Christian Mallaun, Benedikt Ehard, Stephan Rahm
Publikováno v:
Atmospheric Chemistry and Physics, Vol 17, Iss 6, Pp 4031-4052 (2017)
Two mountain wave events, which occurred over northern Scandinavia in December 2013 are analysed 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. During both event
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f221f55dd27ae57f8dcc88fb01509240
http://www.atmos-chem-phys.net/17/4031/2017/acp-17-4031-2017.pdf
http://www.atmos-chem-phys.net/17/4031/2017/acp-17-4031-2017.pdf
Autor:
Bernd Kaifler, Martina Bramberger, Andreas Dörnbrack, Natalie Kaifler, Sonja Gisinger, Markus Rapp, B. Liley, Peter Preusse, Benedikt Ehard, Stephen D. Eckermann, Johannes Wagner
Publikováno v:
Journal of Geophysical Research: Atmospheres. 122:1423-1436
We analyze a large-amplitude mountain wave event, which was observed by a ground-based lidar above New Zealand between 31 July and 1 August 2014. Besides the lidar observations, European Centre for Medium-Range Weather Forecasts (ECMWF) data, satelli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::175313a42fad9fa8db42e89027a8d1b7
https://doi.org/10.1002/2016jd025621
https://doi.org/10.1002/2016jd025621
Autor:
Christiane Voigt, Andreas Dörnbrack, Martin Wirth, Silke M. Groß, Michael C. Pitts, Lamont R. Poole, Robert Baumann, Benedikt Ehard, Björn-Martin Sinnhuber, Wolfgang Woiwode, Hermann Oelhaf
Publikováno v:
Atmospheric chemistry and physics, 18 (21), 15623–15641
Low planetary wave activity led to a stable vortex with exceptionally cold temperatures in the 2015–2016 Arctic winter. Extended areas with temperatures below the ice frost point temperature Tice persisted over weeks in the Arctic stratosphere as d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8884b352a0d87b6ad5d29c98f2c79c60
https://www.atmos-chem-phys.net/18/15623/2018/
https://www.atmos-chem-phys.net/18/15623/2018/
Autor:
Peggy Achtert, Mikhail Khaplanov, Johannes Wagner, Sonja Gisinger, Andreas Dörnbrack, Markus Rapp, Jörg Gumbel, Benedikt Ehard
Publikováno v:
Monthly Weather Review. 144:77-98
The paper presents a feasible method to complement ground-based middle atmospheric Rayleigh lidar temperature observations with numerical simulations in the lower stratosphere and troposphere to study gravity waves. Validated mesoscale numerical simu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea6866ceaf501447936df97b228bd8f9
https://doi.org/10.1175/mwr-d-14-00405.1
https://doi.org/10.1175/mwr-d-14-00405.1
Autor:
Bernd Kaifler, David C. Fritts, Natalie Kaifler, Andreas Dörnbrack, Markus Rapp, Benedikt Ehard
Publikováno v:
Geophysical Research Letters. 42:9488-9494
We present atmospheric gravity wave (GW) measurements obtained by a Rayleigh/Raman lidar at Lauder, New Zealand (45∘ S, 170∘ E) during and after the DEEPWAVE campaign. GW activity and characteristics are derived from 557 hours of high-resolution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69e7850f56c96c77e4ba6bb0270adb1b
https://doi.org/10.1002/2015gl066465
https://doi.org/10.1002/2015gl066465
Autor:
Markus Rapp, P.-Dominique Pautet, Bernd Kaifler, Martina Bramberger, Michael J. Taylor, Benjamin Witschas, Andreas Dörnbrack, David C. Fritts, Katrina Bossert, Christian Mallaun, Simon Vosper, Andrew Orr, Bifford P. Williams, Benedikt Ehard
Publikováno v:
Publications
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. It was performed in and around New Zealand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60156b221165ef77ccdb87820832cab0
https://digitalcommons.usu.edu/ail_pubs/21
https://digitalcommons.usu.edu/ail_pubs/21
Autor:
Bernd Kaifler, Vivien Matthias, Benedikt Ehard, James D. Doyle, Lars Hoffmann, Christopher G. Kruse, Sonja Gisinger, Markus Rapp, Andreas Dörnbrack, Stephen D. Eckermann
Publikováno v:
Monthly weather review 145, MWR-D-16-0435.1 (2017). doi:10.1175/MWR-D-16-0435.1
This paper describes the results of a comprehensive analysis of the atmospheric conditions during the Deep Propagating Gravity Wave Experiment (DEEPWAVE) campaign in austral winter 2014. Different datasets and diagnostics are combined to characterize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::455e50d97dbc496c96ff1ef81ba4c5ee
https://elib.dlr.de/113489/
https://elib.dlr.de/113489/
Autor:
Andreas Dörnbrack, Christiane Voigt, Björn-Martin Sinnhuber, Silke Groß, Robert Baumann, Michael C. Pitts, Lamont R. Poole, Martin Wirth, Benedikt Ehard, Hermann Oelhaf
Despite a general decline in ozone depleting substances in the stratosphere due to the multi-national commitment to substantially reduce the emissions of their precursors, the magnitude of Arctic polar ozone loss has not decreased in recent years. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f44de77d1466e61081873768e51a628
https://doi.org/10.5194/acp-2016-1082
https://doi.org/10.5194/acp-2016-1082