This paper provides compelling evidence for the importance of heterogeneous nucleation, likely on solid particles of meteoritic origin, and of small-scale temperature fluctuations, for the formation of ice particles in the Arctic stratosphere. During January 2010, ice PSCs (polar stratospheric clouds) were shown by CALIPSO (Cloud- Aerosol Lidar and Infrared Pathfinder Satellite Observations) to have occurred on a synoptic scale (1000 km dimension). CALIPSO observations also showed widespread PSCs containing NAT (nitric acid trihydrate) particles in December 2009, prior to the occurrence of synoptic-scale regions of ice PSCs during mid-January 2010.


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    Title :

    Heterogeneous formation of polar stratospheric clouds – Part 2: Nucleation of ice on synoptic scales


    Contributors:
    Engel, I. (author) / Luo, B.P. (author) / Pitts, M.C. (author) / Poole, L.R. (author) / Hoyle, C.R. (author) / Grooß, J.-U. (author) / Dörnbrack, Andreas (author) / Peter, T. (author)

    Published in:

    Publication date :

    2013-11-06



    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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