Výsledky vyhledávání - "K.-H. Fricke"

Akademický článek

Denitrification and polar stratospheric cloud formation during the Arctic winter 2009/2010

Autor: F. Khosrawi, J. Urban, M. C. Pitts, P. Voelger, P. Achtert, M. Kaphlanov, M. L. Santee, G. L. Manney, D. Murtagh, K.-H. Fricke

Publikováno v: Atmospheric Chemistry and Physics, Vol 11, Iss 16, Pp 8471-8487 (2011)

The sedimentation of HNO3 containing Polar Stratospheric Cloud (PSC) particles leads to a permanent removal of HNO3 and thus to a denitrification of the stratosphere, an effect which plays an important role in stratospheric ozone depletion. The polar

Externí odkaz: https://doaj.org/article/ba15a78963c84a938501006e406fab6b

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Akademický článek

Polar mesosphere winter echoes during MaCWAVE

Autor: S. Kirkwood, E. Belova, U. Blum, C. Croskey, P. Dalin, K.-H. Fricke, R. A. Goldberg, J. Manninen, J. D. Mitchell, F. Schmidlin

Publikováno v: Annales Geophysicae, Vol 24, Pp 1245-1255 (2006)

During the MaCWAVE winter campaign in January 2003, layers of enhanced echo power known as PMWE (Polar Mesosphere Winter Echoes) were detected by the ESRAD 52 MHz radar on several occasions. The cause of these echoes is unclear and here we use obs

Externí odkaz: https://doaj.org/article/d28a61ead2864ad6834047ab6b8a5181

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Akademický článek

Observation of an unusual mid-stratospheric aerosol layer in the Arctic: possible sources and implications for polar vortex dynamics

Autor: M. Gerding, G. Baumgarten, U. Blum, J. P. Thayer, K.-H. Fricke, R. Neuber, J. Fiedler

Publikováno v: Annales Geophysicae, Vol 21, Pp 1057-1069 (2003)

By the beginning of winter 2000/2001, a mysterious stratospheric aerosol layer had been detected by four different Arctic lidar stations. The aerosol layer was observed first on 16 November 2000, at an altitude of about 38 km near Søndre Strø

Externí odkaz: https://doaj.org/article/fd1cb32b4a304894aa0a5b9c2e6f72a7

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Akademický článek

Occurrence of polar stratospheric clouds at Kiruna

Autor: C.-F. Enell, Å. Steen, T. Wagner, U. Frieß, K. Pfeilsticker, U. Platt, K.-H. Fricke

Publikováno v: Annales Geophysicae, Vol 17, Pp 1457-1462 (1999)

Polar stratospheric clouds (PSCs) are often observed in the Kiruna region in northern Sweden, east of the Scandinavian mountain range, during wintertime. PSC occurrence can be detected by ground-based optical instruments. Most of these require cle

Externí odkaz: https://doaj.org/article/79ccd9d468a5476084c3ad30aad5d5d7

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Occurrence of polar stratospheric clouds at Kiruna

Autor: Udo Frieß, Thomas Wagner, Klaus Pfeilsticker, Carl-Fredrik Enell, Ulrich Platt, Å. Steen, K.-H. Fricke

Publikováno v: Annales Geophysicae, Vol 17, Iss 11, Pp 1457-1462 (0000)
Annales Geophysicae, Vol 17, Pp 1457-1462 (1999)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fd6bd50df2185bfaa863658e2afd779
https://www.ann-geophys.net/17/1457/1999/

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Geophysical validation of temperature retrieved by the ESA processor from MIPAS/ENVISAT atmospheric limb-emission measurements

Publikováno v: Atmospheric Chemistry and Physics, Vol 7, Iss 16, Pp 4459-4487 (2007)
Atmospheric chemistry and physics discussion 7 (2007): 5439–5513. doi:10.5194/acpd-7-5439-2007
info:cnr-pdr/source/autori:M. Ridolfi, U. Blum, B. Carli, V. Catoire, S. Ceccherini, H. Claude, C. De Clercq, K. H. Fricke, F. Friedl-Vallon, M. Iarlori, P. Keckhut, B. Kerridge, J.-C. Lambert, Y. J. Meijer, L. Mona, H. Oelhaf, G. Pappalardo, M. Pirre, V. Rizi, C. Robert, D. Swart, T. von Clarmann, A. Waterfall, and G. Wetzel/titolo:Geophysical validation of temperature retrieved by the ESA processor from MIPAS%2FENVISAT atmospheric limb-emission measurements/doi:10.5194%2Facpd-7-5439-2007/rivista:Atmospheric chemistry and physics discussion/anno:2007/pagina_da:5439/pagina_a:5513/intervallo_pagine:5439–5513/volume:7
Scopus-Elsevier
Atmospheric Chemistry and Physics Discussions
Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2007, 7 (2), pp.5439-5513
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics, 2007, 7 (16), pp.4459-4487. ⟨10.5194/acp-7-4459-2007⟩
Atmospheric Chemistry and Physics, European Geosciences Union, 2007, 7 (16), pp.4459-4487. ⟨10.5194/acp-7-4459-2007⟩
Atmospheric Chemistry and Physics Discussions, 2007, 7 (2), pp.5439-5513
ResearcherID

The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) has been operating since March 2002 onboard of the ENVIronmental SATellite of the European Space Agency (ESA). The high resolution (0.035 cm−1 full width half maximum, unapodized

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78065d37a77d9e2a3b4103879b0ce504
http://www.atmos-chem-phys.net/7/4459/2007/acp-7-4459-2007.pdf

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Denitrification and polar stratospheric cloud formation during the Arctic winter 2009/2010

Autor: Gloria L. Manney, Michael C. Pitts, Donal P. Murtagh, Peggy Achtert, Joachim Urban, K. H. Fricke, Peter Voelger, Michelle L. Santee, M. Kaphlanov, F. Khosrawi

Publikováno v: Atmospheric Chemistry and Physics, Vol 11, Iss 16, Pp 8471-8487 (2011)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3292014a7fd613699f54f3e70628853
http://www.atmos-chem-phys.net/11/8471/2011/acp-11-8471-2011.pdf

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Middle atmospheric water vapour and dynamics in the vicinity of the polar vortex during the Hygrosonde-2 campaign

Autor: F. J. Schmidlin, Jörg Gumbel, Mikhail Khaplanov, K. H. Fricke, Georg Witt, Stefan Lossow, Peter Dalin, U. Blum, Jacek Stegman, Sheila Kirkwood

Publikováno v: Atmospheric Chemistry and Physics, Vol 9, Iss 13, Pp 4407-4417 (2009)

The Hygrosonde-2 campaign took place on 16 December 2001 at Esrange/Sweden (68° N, 21° E) with the aim to investigate the small scale distribution of water vapour in the middle atmosphere in the vicinity of the Arctic polar vortex. In situ balloon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::955d13aa9e2475e65cdfea0d79d70630
https://doi.org/10.5194/acp-9-4407-2009

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Application of wavelet transformation to determine wavelengths and phase velocities of gravity waves observed by lidar measurements

Autor: R. Werner, Kerstin Stebel, U. Blum, Michael Gausa, K. H. Fricke, Georg Hansen, Ulf-Peter Hoppe

Publikováno v: Journal of Atmospheric and Solar-Terrestrial Physics. 69:2249-2256

During the last two decades, important advances have been made in the investigation of gravity waves. However, more efforts are needed to study certain aspects of gravity waves. In the real atmosphere, gravity waves occur with different properties at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e84559867d8622bf84d53a11531b400
https://doi.org/10.1016/j.jastp.2007.05.013

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Joint radar/lidar observations of possible aerosol layers in the winter mesosphere

Autor: K. H. Fricke, Kerstin Stebel, U. Blum, Sheila Kirkwood, A. Osepian, Nicholas J. Mitchell

Publikováno v: Journal of Atmospheric and Solar-Terrestrial Physics. 66:957-970

Narrow layers of enhanced radar echoes from the winter mesosphere have been observed by the ESRAD 52 MHz radar (68°N,21°E) during recent solar proton events. These layers have been named PMWE, Polar Mesosphere Winter Echoes. Comparison of the chara

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::417296b47320800f8dada869c85da670
https://doi.org/10.1016/j.jastp.2004.03.008

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