Comparison of cirrus cloud properties in the northern and southern hemisphere on the basis of lidar measurements.


Contact
fimmler [ at ] awi-potsdam.de

Abstract

Cirrus cloud measurements have been performed during the INCA field campaigns in Punta Arenas/Chile (53.12°S, 70.88°W) and in Prestwick/Scotland (55.51°N, 4.60°W) in each hemi-spheres fall in the year 2000. From lidar backscatter profiles at 532 nm and 355 nm the optical depth (OD) of the clouds is retrieved as well as base and top altitude of the clouds, the color index and the depolarization. Cloud layers with optical depths covering more than 3 orders of magnitude have been detected by the lidar, with a high share (35%) of subvisual cirrus at both sites. Differ-ences in the results from the southern and the northern hemisphere are found in the lidar ratio and the depolarization behavior. While there is a large natural variability in cirrus properties, our results indicate a tendency towards bigger particles and columns in the southern hemisphere compared to smaller particles and small crystal plates in the northern hemisphere.



Item Type
Conference (Conference paper)
Authors
Divisions
Programs
Peer revision
Not peer-reviewed
Publication Status
Published
Event Details
Special issue: aviation, atmosphere und climate : [The European Conference on Aviation, Atmosphere and Climate (AAC) in FriedrichshafenJune to 3 July 2003 ...] Berlin [u.a.] : Bornträger, p.306-309. (Meteorologische Zeitschrift ; 14.2005,4).
Eprint ID
9316
Cite as
Immler, F. and Schrems, O. (2003): Comparison of cirrus cloud properties in the northern and southern hemisphere on the basis of lidar measurements. , Special issue: aviation, atmosphere und climate : [The European Conference on Aviation, Atmosphere and Climate (AAC) in FriedrichshafenJune to 3 July 2003 ...] Berlin [u.a.] : Bornträger, p.306-309. (Meteorologische Zeitschrift ; 14.2005,4) .


Download
[img]
Preview
PDF (Fulltext)
Imm2003j.pdf

Download (203kB) | Preview
Cite this document as:

Share

Research Platforms
N/A

Campaigns


Actions
Edit Item Edit Item