A new technique to categorize and retrieve the microphysical properties of ice particles above the melting layer using radar dual-polarization spectral analysis

ALJ Spek, CMH Unal, DN Moisseev, V Chandrasekar, Y Dufournet

    Research output: Contribution to journalArticleScientificpeer-review

    20 Citations (Scopus)

    Abstract

    In this study, a dual-polarization spectral analysis for retrieval of microphysical properties of ice hydrometeors is developed. It is shown that, by using simultaneous Doppler polarimetric observations taken at a 45° elevation angle, it is possible to discriminate between different types of ice particles. Particle size distribution parameters for maximally two dominating types of ice particles (aggregates and plates) observed above the melting layer are retrieved. Prior to the retrieval algorithm, a selection of possible types of ice particles based on environmental conditions is carried out. The retrieval procedure is based on a least squares optimization that simultaneously minimizes fit residuals in a Doppler power spectrum and spectral differential reflectivity. The proposed method is illustrated on transportable atmospheric radar (TARA) observations of stratiform rain collected on 19 September 2001 at Cabauw, Netherlands.
    Original languageUndefined/Unknown
    Pages (from-to)482-497
    Number of pages16
    JournalJournal of Atmospheric and Oceanic Technology
    Volume25
    DOIs
    Publication statusPublished - 2008

    Keywords

    • academic journal papers
    • CWTS 0.75 <= JFIS < 2.00

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