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contributor authorKumar, Praveen
contributor authorFoufoula-Georgiou, Efi
date accessioned2017-06-09T14:04:11Z
date available2017-06-09T14:04:11Z
date copyright1993/02/01
date issued1993
identifier issn0894-8763
identifier otherams-11861.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4147136
description abstractIt has been observed that the finite-dimensional distribution functions of rainfall cannot obey simple scaling laws due to rainfall intermittency (mixed distribution with an atom at zero) and the probability of rainfall being an increasing function of area. Although rainfall fluctuations do not suffer these limitations, it is interesting to note that very few attempts have been made to study them in terms of their self-similarity characteristics. This is due to the lack of unambiguous definition of fluctuations in multidimensions. 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.
publisherAmerican Meteorological Society
titleA New Look at Rainfall Fluctuations and Scaling Properties of Spatial Rainfall Using Orthogonal Wavelets
typeJournal Paper
journal volume32
journal issue2
journal titleJournal of Applied Meteorology
identifier doi10.1175/1520-0450(1993)032<0209:ANLARF>2.0.CO;2
journal fristpage209
journal lastpage222
treeJournal of Applied Meteorology:;1993:;volume( 032 ):;issue: 002
contenttypeFulltext


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