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    Controls on precipitation and cloudiness in simulations of trade-wind cumulus as observed during RICO

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    MechemD_AMES_3(2)M06001.pdf (1.079Mb)
    Issue Date
    2011-06-28
    Author
    van Zanten, Margreet C.
    Stevens, Bjorn
    Nuijens, Louise
    Siebesma, A. Pier
    Ackerman, A. S.
    Burnet, F.
    Cheng, A.
    Couvreux, F.
    Jiang, H.
    Khairoutdinov, M.
    Kogan, Yefim L.
    Lewellen, D. C.
    Mechem, David B.
    Publisher
    American Geophysical Union
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Metadata
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    Abstract
    Twelve large-eddy simulations, with a wide range of microphysical representations, are compared to each other and to independent measurements. The measurements and the initial and forcing data for the simulations are taken from the undisturbed period of the Rain in Cumulus over the Ocean (RICO) field study. A regional downscaling of meteorological analyses is performed so as to provide forcing data consistent with the measurements. The ensemble average of the simulations plausibly reproduces many features of the observed clouds, including the vertical structure of cloud fraction, profiles of cloud and rain water, and to a lesser degree the population density of rain drops. The simulations do show considerable departures from one another in the representation of the cloud microphysical structure and the ensuant surface precipitation rates, increasingly so for the more simplified microphysical models. There is a robust tendency for simulations that develop rain to produce a shallower, somewhat more stable cloud layer. Relations between cloud cover and precipitation are ambiguous.
    Description
    This is the publisher's version, also available electronically from http://onlinelibrary.wiley.com/doi/10.1029/2011MS000056/abstract.
    URI
    http://hdl.handle.net/1808/15855
    DOI
    https://doi.org/10.1029/2011MS000056
    ISSN
    1942-2466
    Collections
    • Geography & Atmospheric Science Scholarly Works [199]
    Citation
    Margreet C. van Zanten et al. (2011). "Controls on precipitation and cloudiness in simulations of trade-wind cumulus as observed during RICO." J. Adv. Model. Earth Sys., 3(2):M06001. http://www.dx.doi.org/10.1029/2011MS000056

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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