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|Authors: ||Del Guasta, M.*|
|Title: ||Evidence for Liquid Droplets in a -65° Cold Cirrus Observed by LIDAR above Sodankyla (Finland) during SESAME|
|Editors: ||Pyle, J. A.|
Harrys, N. R. P.
Amanatidis, G. T.
|Issue Date: ||18-Sep-1995|
|Keywords: ||Polar Stratospheric Clouds|
|Abstract: ||It is widely accepted that pure water cannot exist as liquid below about -40°C. Theoretical and laboratory studies confirm this behavior for pure water . Nevertheless, liquid droplets have been seldom observed in cirrus clouds down to -50°C. Miltiwaveleght depolarization LIDAR tecnique can help ti hunt usually cold supercooled clouds. The presence of non-depolarizing cloud layers is indicative of scattering with ylindrical symmetry, possible both with spherical droplets and with ice plates horizontally oriented. In this work, a -65°C cold, non- depolarizing cloud observed in Finland is analysed, concluding thath supercooled droplets are responsible for the absence of depolarization in most of the layer.|
|Appears in Collections:||Conference materials|
01.01.99. General or miscellaneous
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|Proc_3_Europ_work_polar_start_ozone_1995_141-144.pdf||2.85 MB||Adobe PDF||View/Open
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