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Akademický článek

Diurnal and annual variations of meteor rates at the arctic circle

Publikováno v: Atmospheric Chemistry and Physics, Vol 4, Iss 5, Pp 1355-1363 (2004)

Meteors are an important source for (a) the metal atoms of the upper atmosphere metal layers and (b) for condensation nuclei, the existence of which are a prerequisite for the formation of noctilucent cloud particles in the polar mesopause region. Fo

Externí odkaz: https://doaj.org/article/11f78d75f4f943b98cb2f0d0ec7be7e3

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Akademický článek

Noctilucent clouds and the mesospheric water vapour: the past decade

Autor: U. von Zahn, G. Baumgarten, U. Berger, J. Fiedler, P. Hartogh

Publikováno v: Atmospheric Chemistry and Physics, Vol 4, Iss 11/12, Pp 2449-2464 (2004)

The topic of this paper is the sensitivity of the brightness of noctilucent clouds (NLC) on the ambient water vapour mixing ratio f(H2O). Firstly, we use state-of-the-art models of NLC layer formation to predict NLC brightness changes in response to

Externí odkaz: https://doaj.org/article/5f8e86a7477f451aa7f385aec9dbea46

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Akademický článek

Sporadic Ca and Ca+ layers at mid-latitudes: Simultaneous observations and implications for their formation

Autor: M. Gerding, M. Alpers, J. Höffner, U. von Zahn

Publikováno v: Annales Geophysicae, Vol 19, Pp 47-58 (2001)

We report on the observations of 188 sporadic layers of either Ca atoms and/or Ca ions that we have observed during 112 nights of lidar soundings of Ca, and 58 nights of Ca+ soundings, at Kühlungsborn, Germany (54° N, 12° E). The Ca+ soundin

Externí odkaz: https://doaj.org/article/10b940e187cf4280bc415bcbfaeb0f1a

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Akademický článek

The ALOMAR Rayleigh/Mie/Raman lidar: objectives, configuration, and performance

Autor: U. von Zahn, G. von Cossart, J. Fiedler, K. H. Fricke, G. Nelke, G. Baumgarten, D. Rees, A. Hauchecorne, K. Adolfsen

Publikováno v: Annales Geophysicae, Vol 18, Pp 815-833 (2000)

We report on the development and current capabilities of the ALOMAR Rayleigh/Mie/Raman lidar. This instrument is one of the core instruments of the international ALOMAR facility, located near Andenes in Norway at 69°N and 16°E. The major task of

Externí odkaz: https://doaj.org/article/25dc9dab86744f9dafb50a5bc3cedbe4

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COMPOSITION OF THE VENUS ATMOSPHERE

Autor: U. VON ZAHN, S. KUMAR, H. NIEMANN, R. PRINN

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::01714facff2656caa5e764fe44c0ed53
https://doi.org/10.2307/j.ctv25c4z16.17

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RETRACTED: Research on the Cultivation of 'Double Division Type' Teachers in Higher Vocational Colleges Based on the Analysis of Big Data from the Perspective of Production Teaching Integration

Autor: Gerd W. Prölss, U. Von Zahn

Publikováno v: Journal of Physics: Conference Series. 1992:022142

With the rapid iterative expansion of information-based big data technology, based on the analysis of the difference representation, dynamic expansion process and stage characteristics of “double qualified” teachers, it is not difficult to find t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4626b41b34a4a4e24a7c0c854e01822a
https://doi.org/10.1088/1742-6596/1992/2/022142

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Diurnal and annual variations of meteor rates at the arctic circle

Autor: U. von Zahn, Werner Singer, J. Weiß

Publikováno v: Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics, European Geosciences Union, 2004, 4 (5), pp.1355-1363
Atmospheric Chemistry and Physics, Vol 4, Iss 5, Pp 1355-1363 (2004)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee8bc0d243b7136c100e9304313cef9e
https://doi.org/10.5194/acp-4-1355-2004

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High resolution radar observations of the 1999, 2000 and 2001 Leonid meteor storms over middle Europe and Northern Scandinavia

Autor: U. von Zahn, Nicholas J. Mitchell, Werner Singer, Ralph Latteck, J. Weiss

Publikováno v: Advances in Space Research. 33:1496-1500

Observations of the Leonid meteor storms have been made with all-sky meteor radars at Juliusruh, Germany (54.6°N), at Kiruna, Sweden (67.9°N) and at Andenes, Norway (69.3°N) in 1999, 2000, and 2001. In the Juliusruh and Andenes experiments acquisi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac7dc1f4774fcda6bf81d401c2c21201
https://doi.org/10.1016/j.asr.2003.06.002

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Noctilucent clouds and the mesospheric water vapour: the past decade

Autor: Paul Hartogh, J. Fiedler, Uwe Berger, U. von Zahn, Gerd Baumgarten

Publikováno v: Atmospheric Chemistry and Physics, Vol 4, Iss 11/12, Pp 2449-2464 (2004)
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics, European Geosciences Union, 2004, 4 (11/12), pp.2449-2464
Scopus-Elsevier

International audience; The topic of this paper is the sensitivity of the brightness of noctilucent clouds (NLC) on the ambient water vapour mixing ratio f(H2O). Firstly, we use state-of-the-art models of NLC layer formation to predict NLC brightness

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::643463f7a67f08eeb36e1efdea4ac58f
http://www.atmos-chem-phys.net/4/2449/2004/acp-4-2449-2004.pdf

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