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Application of the stochastic model for temporal rainfall disaggregation for hydrological studies in north western England

Abdellatif, M and Atherton, W and Alkhaddar, R (2013) Application of the stochastic model for temporal rainfall disaggregation for hydrological studies in north western England. JOURNAL OF HYDROINFORMATICS, 15 (2). pp. 555-567. ISSN 1464-7141

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Abstract

Assessment of climate change on any hydrological system requires higher temporal resolution at hourly or less in terms of time-scale. This paper implements the Bartlett-Lewis Rectangular Pulses (BLRP) model coupled with a proportional adjusting procedure to disaggregate daily rainfall to hourly rainfall in order to demonstrate the reliability of this method. Three stations in NorthWestern England have been selected that represent different climates in the region. Parameters estimation of the BLRP model has been performed under different levels of hourly rainfall aggregation for a combination of rainfall statistics. The Hyetos model, which applies BLRP, reproduced standard statistics such as mean, variance, Lag -1, autocorrelation as well as dry proportions. Moreover, the model was proven to have the capability to disaggregate the rainfall extremes. The fitted BLRP model could then be used to disaggregate future daily rainfall in order to investigate the climate change impact of different rainfall intensities.

Item Type: Article
Additional Information: ©IWA Publishing 2013. The definitive peer-reviewed and edited version of this article is published in Journal of Hydroinformatics v.15(2), pp.555-567, 2013 and is available at www.iwapublishing.com."
Uncontrolled Keywords: 0905 Civil Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Built Environment
Civil Engineering
Publisher: IWA PUBLISHING
Related URLs:
Date Deposited: 13 Nov 2015 14:03
Last Modified: 07 Sep 2017 09:55
DOI or Identification number: 10.2166/hydro.2012.090
URI: http://researchonline.ljmu.ac.uk/id/eprint/2344

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