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  Lidar Network Observations of Cirrus Morphological and Scattering Properties during the International Cirrus Experiment 1989: The 18 October 1989 Case-Study and Statistical-Analysis

Ansmann, A., Bösenberg, J., Elouragini, S., Flamant, P. H., Klappheck, K. H., Linné, H., et al. (1993). Lidar Network Observations of Cirrus Morphological and Scattering Properties during the International Cirrus Experiment 1989: The 18 October 1989 Case-Study and Statistical-Analysis. Journal of Applied Meteorology, 32, 1608-1622. doi:10.1175/1520-0450(1993)032<1608:LNOOCM>2.0.CO;2.

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JournalAppliedMeteorolgy-1993-Ansmann.pdf (Verlagsversion), 2MB
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 Urheber:
Ansmann, Albert1, Autor
Bösenberg, Jens2, Autor
Elouragini, Salem3, Autor
Flamant, Pierre H.1, Autor
Klappheck, Karl Heinz4, Autor
Linné, Holger2, Autor
Menenger, Louis3, Autor
Michealis, Walfried1, Autor
Riebesell, Maren1, Autor
Senff, Christoph2, Autor
Thro, Pierre-Yves2, Autor
Wandinger, Ulla1, Autor
Weitkamp, Claus1, Autor
Loth, Claude3, Autor
Moerl, Peter5, Autor
Renger, Wolfgang5, Autor
Pelon, Jacques6, Autor
Affiliations:
1GKSS Forschungszentrum Geesthacht, Max-Planck-Straße, 2054 Geesthacht, DE, ou_persistent22              
2MPI for Meteorology, Max Planck Society, Bundesstraße 53, 20146 Hamburg, DE, ou_913545              
3LMD Ecole polytechnique, Laboratoire de Météorolgie dynamique, Ecole polytechnique, 91128 Palaiseau, FR, ou_persistent22              
4Deutscher Wetterdienst, Meteorologisches Observatorium Hamburg, Frahmredder 95, 2000 Hamburg 65, DE, ou_persistent22              
5Deutsche Forschungs- und Versuchsanstalt für Luft und Raumfahrt, 8031 Wessling, DE, ou_persistent22              
6Service d'aéronomie, BP3, 91370 Verriere-le-Buisson, FR, ou_persistent22              

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 Zusammenfassung: Four lidars, located roughly 75 km from each other in the inner German Bight of the North Sea, were used to measure geometrical and optical properties of cirrus clouds during the International Cirrus Experiment 1989 (ICE '89). A complete cirrus life cycle was observed simultaneously with three lidars during a case study on 18 October 1989. Time series of particle backscatter, depolarization-ratio height profiles, cloud depth, optical thickness, and of the cirrus extinction-to-backscatter, or lidar, ratio describe the evolution of the cloud system. A two-wavelength lidar measurement was performed and indicates wavelength independence of ice-crystal scattering. The optical and geometrical depths of the cirrus were well correlated and varied between 0.01 and 0.5 and 100 m and 4.5 km, respectively. Although the evolution of the cloud deck was similar over the different observation sites, cirrus geometrical, scattering, and microphysical properties were found to vary considerably within the lidar network. A statistical analysis of ice-cloud properties is performed based on 38 different cirrus cases sampled during ICE '89. Cirrus formation was found to start at the tropopause in most cases. Ice clouds, measured at high midlatitudes (around 54-degrees-N), were thin with mean optical and geometrical depths mainly below 0.4 and 2 km, respectively. A good correlation between mean cloud optical and geometrical thickness, and a weak decrease of the mean optical depths with temperature was observed.

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Sprache(n): eng - English
 Datum: 1993
 Publikationsstatus: Erschienen
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 Art der Begutachtung: Expertenbegutachtung
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Titel: Journal of Applied Meteorology
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Boston, MA : American Meteorology Society
Seiten: - Band / Heft: 32 Artikelnummer: - Start- / Endseite: 1608 - 1622 Identifikator: ISSN: 0894-8763
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000210720

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Titel: Report / Max-Planck-Institut für Meteorologie
  Andere : MPI Report
Genre der Quelle: Reihe
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Affiliations:
Ort, Verlag, Ausgabe: Hamburg : Max-Planck-Institut für Meteorologie
Seiten: - Band / Heft: 060 Artikelnummer: - Start- / Endseite: - Identifikator: Anderer: 0937-1060
CoNE: https://pure.mpg.de/cone/journals/resource/0937-1060