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Polar stratospheric ice cloud above Spitsbergen

Maturilli, Marion and Dörnbrack, Andreas (2006) Polar stratospheric ice cloud above Spitsbergen. Journal of Geophysical Research, 111, D18210. DOI: 10.1029/2005JD006967.

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Abstract

Within the extremely cold and stable polar vortex of winter 2004–2005 a polar stratospheric ice cloud was observed from Ny-Ålesund (Spitsbergen) on 26 January 2005. The observation of a cloud with backscatter ratios up to 23 and volume depolarization larger than 50% is unique in our 15 year ground-based lidar data record. Simultaneous balloon-borne water vapor measurements indicate the presence of mesoscale ice clouds nearby. Normally, low horizontal wind speeds inside the inner vortex prevent vertical wave propagation. However, the rare coincidence of different meteorological processes occurring during a poleward-breaking Rossby wave event caused favorable conditions for the vertical propagation of mountain waves excited by the flow past Spitsbergen. Detailed meteorological analysis shows that the ice particle formation processes on 26 January 2005 were most likely provoked by mesoscale stratospheric temperature anomalies, leading to a local reduction in water vapor

Document Type:Article
Title:Polar stratospheric ice cloud above Spitsbergen
Authors:
AuthorsInstitution or Email of Authors
Maturilli, MarionPotsdam
Dörnbrack, AndreasUNSPECIFIED
Date:2006
Journal or Publication Title:Journal of Geophysical Research
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:111
DOI:10.1029/2005JD006967
Page Range:D18210
Status:Published
Keywords:polar stratospheric clouds, mountain waves, Arctic
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 > Cloud Physics and Traffic Meteorology
Deposited By: Jana Freund
Deposited On:13 Dec 2006
Last Modified:11 Nov 2014 21:56

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