A new look at rainfall fluctuations and scaling properties of spatial rainfall using orthogonal wavelets

P. Kumar, E. Foufoula-Georgiou

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    23 Scopus citations

    Abstract

    This paper shows that wavelet transforms offer a convenient and consistent method for the decomposition of inhomogeneous and anisotropic rainfall fields in two dimensions and that the components of this decomposition can be looked at as fluctuations of the rainfall field. It is also shown that under some mild assumptions, the component fields can be treated as homogeneous and thus are amenable to second-order analysis, which can provide useful insight into the nature of the process. The fact that wavelet transforms are a space-scale method also provides a convenient tool to study scaling characteristics of the process. Orthogonal wavelets are used, and these properties are investigated for a squall-line storm to study the presence of self-similarity. -from Authors

    Original languageEnglish (US)
    Pages (from-to)209-222
    Number of pages14
    JournalJournal of Applied Meteorology
    Volume32
    Issue number2
    DOIs
    StatePublished - 1993

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