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Model guided Lagrangian observation and simulation of mountain polar stratospheric clouds

Wirth, Martin and Weiß, V. and Renger, Wolfgang and Dörnbrack, Andreas and Leutbecher, Martin and Volkert, Hans and Tsias, A. and Carslaw, Ken S. and Peter, Thomas (1999) Model guided Lagrangian observation and simulation of mountain polar stratospheric clouds. Journal of Geophysical Research, 104, pp. 23971-23981. ISSN 0148-0227.

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Official URL: http://www.agu.org/


Gravity-wave-induced polar stratospheric clouds (PSCs) were observed over the Scandinavian mountains by airborne lidar on January 9, 1997. Guided by the forecasts of a mesoscale dynamical model, a flight path was chosen to lead through the coldest predicted region parallel to the wind at the expected PSC level (23–26 km). Because of the nearly stationary nature of the wave-induced PSC the individual filaments visible in the backscatter data of the clouds can be interpreted as air parcel trajectories. Assuming dry adiabatic behavior and fixing the absolute temperature to the ice frost point in the ice part of the cloud enables detailed microphysical simulations of the whole life cycle of the cloud particles. Optical calculations are used to adjust open parameters in the microphysical model by optimizing the agreement with the multichannel lidar data. This case is compared with former work from the Arctic winter 1994/1995. The influence of the stratospheric H<sub>2</sub>SO<sub>4</sub> content and the cooling rate on the type of cloud particles (liquid ternary solution droplets or solid nitric acid hydrates) released from the ice part of the cloud is evaluated.

Document Type:Article
Additional Information:LIDO-Berichtsjahr=1999,
Title:Model guided Lagrangian observation and simulation of mountain polar stratospheric clouds
AuthorsInstitution or Email of Authors
Wirth, MartinDLR, IPA
Renger, WolfgangDLR, IPA
Dörnbrack, AndreasDLR, IPA
Leutbecher, MartinDLR, IPA
Volkert, HansDLR, IPA
Tsias, A.MPI für Chemie, Mainz
Carslaw, Ken S.MPI für Chemie, Mainz
Peter, ThomasMPI für Chemie, Mainz
Journal or Publication Title:Journal of Geophysical Research
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 23971-23981
Keywords:polar stratospheric clouds, Lagrangian Observation
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics
Institute of Atmospheric Physics > Lidar
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:21 Mar 2014 16:03

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