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    Understanding Ice Cloud‐Precipitation Properties of Three Modes of Mesoscale Convective Systems During PECAN

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    Name:
    Cui_et_al-2019-Journal_of_Geop ...
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    Description:
    Final Published Version
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    Author
    Cui, Wenjun
    Dong, Xiquan cc
    Xi, Baike
    Fan, Jiwen cc
    Tian, Jingjing
    Wang, Jingyu
    McHardy, Theodore M.
    Affiliation
    Univ Arizona, Dept Hydrol & Atmospher Sci
    Issue Date
    2019-04-12
    
    Metadata
    Show full item record
    Publisher
    AMER GEOPHYSICAL UNION
    Citation
    Cui, W., Dong, X., Xi, B., Fan, J., Tian, J., Wang, J., & McHardy, T. M. (2019). Understanding ice cloud‐precipitation properties of three modes of mesoscale convective systems during PECAN. Journal of Geophysical Research: Atmospheres, 124, 4121–4140. https:// doi.org/10.1029/2019JD030330
    Journal
    JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
    Rights
    Copyright © 2019. American Geophysical Union. All Rights Reserved.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    This study analyzes the precipitation and ice cloud microphysical features of three common modes of linear mesoscale convective systems during the Plains Elevated Convection at Night (PECAN) campaign. Three cases, one for each linear mesoscale convective system archetype (trailing stratiform, leading stratiform, and parallel stratiform precipitation), are selected. We focus primarily on analyzing ice cloud microphysical properties and precipitation rates (PRs) over the classified convective core (CC) and stratiform rain (SR) regions, as well as the two stratiform regions that developed behind (SR1) and ahead (SR2) of the convective line relative to the storm motion. In the three selected cases, the ice water path (IWP) and PR have strong correlations in the CC, but not in the SR. In terms of the temporal evolution of the mean IWPs and PRs, both CC and SR IWPs, as well as CC PRs, reach peaks quickly but take a longer time to dissipate than the increase period. For all the three cases, both SR1 and SR2 IWPs are 20-70% of their corresponding CC values in both the leading stratiform and parallel stratiform cases and up to 95% for the trailing stratiform case, while all of their PRs are only 7-25% of their CC values. These values suggest not only that the SR PRs may depend on IWPs but also that the microphysical properties of ice particles such as habit and size distribution may play an important role. Utilizing cloud-resolving simulations of these systems may provide better understanding of the physical meanings behind the results in the future.
    Note
    6 month embargo; first published: 29 March 2019
    ISSN
    2169-897X
    DOI
    10.1029/2019jd030330
    Version
    Final published version
    Sponsors
    Climate Model Development and Validation (CMDV) program - Office of Biological and Environmental Research in the US Department of Energy Office of Science [DE-SC0017015]; NASA CERES project [NNX17AC52G]
    ae974a485f413a2113503eed53cd6c53
    10.1029/2019jd030330
    Scopus Count
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