Lidar observations of thin and subvisible cirrus in the tropics


Contact
oschrems [ at ] awi-bremerhaven.de

Abstract

Cirrus clouds were observed with a Mobile Aerosol Raman Lidar (MARL) during field campaigns in the tropics in 2004/2005 (Paramaribo/Suriname, 6°N, 55°W) and aboard our research vessel Polarstern. Our lidar system is capable of detecting thin cirrus including extremely thin clouds with an optical depth below 10-3. The system measures cloud altitudes with high vertical and temporal resolution and determines the depolarisation and optical depth. It can measure during day - and night-time. In daytime cloud types including contrails are classified by means of a video camera. During the campaigns, water vapour was measured by means of balloon borne probes (Vaisala RS80/RS90, "Snow white" frost point hygrometer) and by the LIDAR using the Raman technique.



Item Type
Conference (Talk)
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Peer revision
Not peer-reviewed
Publication Status
Published
Event Details
Lecture, 105. Bunsentagung, 25-27 May, Erlangen, Germany..
Eprint ID
15459
Cite as
Schrems, O. and Immler, F. (2006): Lidar observations of thin and subvisible cirrus in the tropics , Lecture, 105. Bunsentagung, 25-27 May, Erlangen, Germany. .


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