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Fractal analysis of high-resolution rainfall time series

Olsson, J. LU ; Niemczynowicz, J. LU and Berndtsson, R. LU orcid (1993) In Journal of Geophysical Research 98(D12). p.23265-23274
Abstract

Two-year series of 1-min rainfall intensities observed by rain gages at six differrent points are analyzed to obtain information about the fractal behavior of the rainfall distribution in time. First, the rainfall time series are investigated using a monodimensional fractal approach (simple scaling) by calculating the box and correlation dimensions, respectively. The results indicate scaling but with different dimensions for different time aggregation periods. The time periods where changes in dimension occur can be related to average rainfall event durations and average dry period lengths. Also, the dimension is shown to be a decreasing function of the rainfall intensity level. This suggests a multidimensional fractal behavior... (More)

Two-year series of 1-min rainfall intensities observed by rain gages at six differrent points are analyzed to obtain information about the fractal behavior of the rainfall distribution in time. First, the rainfall time series are investigated using a monodimensional fractal approach (simple scaling) by calculating the box and correlation dimensions, respectively. The results indicate scaling but with different dimensions for different time aggregation periods. The time periods where changes in dimension occur can be related to average rainfall event durations and average dry period lengths. Also, the dimension is shown to be a decreasing function of the rainfall intensity level. This suggests a multidimensional fractal behavior (multiscaling), and to test this hypothesis, the probability distribution/multiple scaling method was applied to the time series. The results confirm that the investigated rainfall time series display a multidimensional fractal behavior, at least within a significant part of the studied timescales, which indicates that the rainfall process can be described by a multiplicative cascade process. -Authors

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publishing date
type
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publication status
published
subject
in
Journal of Geophysical Research
volume
98
issue
D12
pages
23265 - 23274
publisher
Wiley-Blackwell
external identifiers
  • scopus:18344402436
ISSN
0148-0227
DOI
10.1029/93jd02658
language
English
LU publication?
yes
id
1b08c51e-a5ad-4d10-bba1-825f57332593
date added to LUP
2023-08-17 15:28:47
date last changed
2023-08-21 12:14:38
@article{1b08c51e-a5ad-4d10-bba1-825f57332593,
  abstract     = {{<p>Two-year series of 1-min rainfall intensities observed by rain gages at six differrent points are analyzed to obtain information about the fractal behavior of the rainfall distribution in time. First, the rainfall time series are investigated using a monodimensional fractal approach (simple scaling) by calculating the box and correlation dimensions, respectively. The results indicate scaling but with different dimensions for different time aggregation periods. The time periods where changes in dimension occur can be related to average rainfall event durations and average dry period lengths. Also, the dimension is shown to be a decreasing function of the rainfall intensity level. This suggests a multidimensional fractal behavior (multiscaling), and to test this hypothesis, the probability distribution/multiple scaling method was applied to the time series. The results confirm that the investigated rainfall time series display a multidimensional fractal behavior, at least within a significant part of the studied timescales, which indicates that the rainfall process can be described by a multiplicative cascade process. -Authors</p>}},
  author       = {{Olsson, J. and Niemczynowicz, J. and Berndtsson, R.}},
  issn         = {{0148-0227}},
  language     = {{eng}},
  number       = {{D12}},
  pages        = {{23265--23274}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Journal of Geophysical Research}},
  title        = {{Fractal analysis of high-resolution rainfall time series}},
  url          = {{http://dx.doi.org/10.1029/93jd02658}},
  doi          = {{10.1029/93jd02658}},
  volume       = {{98}},
  year         = {{1993}},
}