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Temporal rainfall disaggregration based on scaling properties

Olsson, J. LU and Berndtsson, R. LU orcid (1998) In Water Science and Technology 37(11). p.73-79
Abstract

The present study concerns disaggregation of daily rainfall time series into higher resolution. For this purpose, the scaling-based cascade model proposed by Olsson (1998) is employed. This model operates by dividing each rainy time period into halves of equal length and distributing the rainfall volume between the halves. For this distribution three possible cases are defined, and the occurrence probability of each case is empirically estimated. Olsson (1998) showed that the model was applicable between the time scales 1 hour and 1 week for rainfall in southern Sweden. In the present study, a daily seasonal (April-June; 3 years) rainfall time series from the same region was disaggregated by the model to 45-min resolution. The... (More)

The present study concerns disaggregation of daily rainfall time series into higher resolution. For this purpose, the scaling-based cascade model proposed by Olsson (1998) is employed. This model operates by dividing each rainy time period into halves of equal length and distributing the rainfall volume between the halves. For this distribution three possible cases are defined, and the occurrence probability of each case is empirically estimated. Olsson (1998) showed that the model was applicable between the time scales 1 hour and 1 week for rainfall in southern Sweden. In the present study, a daily seasonal (April-June; 3 years) rainfall time series from the same region was disaggregated by the model to 45-min resolution. The disaggregated data was shown to very well reproduce many fundamental characteristics of the observed 45-min data, e.g., the division between rainy and dry periods, the event structure, and the scaling behavior. The results demonstrate the potential of scaling-based approaches in hydrological applications involving rainfall.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cascade, Daily time series, Disaggregation, Rainfall, Scaling
in
Water Science and Technology
volume
37
issue
11
pages
7 pages
publisher
IWA Publishing
external identifiers
  • scopus:85087582540
ISSN
0273-1223
DOI
10.2166/wst.1998.0439
language
English
LU publication?
yes
id
bd98fe4b-0882-4d52-a439-93cff2bea8e4
date added to LUP
2023-08-17 15:15:04
date last changed
2023-10-03 10:06:43
@article{bd98fe4b-0882-4d52-a439-93cff2bea8e4,
  abstract     = {{<p>The present study concerns disaggregation of daily rainfall time series into higher resolution. For this purpose, the scaling-based cascade model proposed by Olsson (1998) is employed. This model operates by dividing each rainy time period into halves of equal length and distributing the rainfall volume between the halves. For this distribution three possible cases are defined, and the occurrence probability of each case is empirically estimated. Olsson (1998) showed that the model was applicable between the time scales 1 hour and 1 week for rainfall in southern Sweden. In the present study, a daily seasonal (April-June; 3 years) rainfall time series from the same region was disaggregated by the model to 45-min resolution. The disaggregated data was shown to very well reproduce many fundamental characteristics of the observed 45-min data, e.g., the division between rainy and dry periods, the event structure, and the scaling behavior. The results demonstrate the potential of scaling-based approaches in hydrological applications involving rainfall.</p>}},
  author       = {{Olsson, J. and Berndtsson, R.}},
  issn         = {{0273-1223}},
  keywords     = {{Cascade; Daily time series; Disaggregation; Rainfall; Scaling}},
  language     = {{eng}},
  number       = {{11}},
  pages        = {{73--79}},
  publisher    = {{IWA Publishing}},
  series       = {{Water Science and Technology}},
  title        = {{Temporal rainfall disaggregration based on scaling properties}},
  url          = {{http://dx.doi.org/10.2166/wst.1998.0439}},
  doi          = {{10.2166/wst.1998.0439}},
  volume       = {{37}},
  year         = {{1998}},
}