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Abstract
The aim of the study is to present the effective and relatively simple empirical approach to rainfall Intensity-Duration-Frequency-formulas development, based on Controlled Random Search (CRS) for global optimization. The approach is mainly dedicated to the cases in which the commonly used IDF-relationships do not provide satisfactory fit between simulations and observations, and more complex formulas with higher number of parameters are advisable. Precipitation data from Gdansk gauge station were analyzed as the example, with use of peak-over-threshold method and Chomicz scale for rainfall intensity. General forms of the IDF-function were chosen and the parameter calibration with use of CRS algorithm was developed. The compliance of the obtained IDF-formulas with precipitation data and the efficiency of the algorithm were analyzed. The study confirmed the proposed empirical approach may be an interesting alternative for probabilistic ones, especially when IDF-relationship has more complex form and precipitation data do not match ‘typical’ hydrological distributions.
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/s11600-014-0242-5
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Acta Geophysica
no. 63,
pages 232 - 274,
ISSN: 1895-6572 - Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Weinerowska-Bords K.: Development of Local IDF-formula Using Controlled Random Search Method for Global Optimization// Acta Geophysica. -Vol. 63, nr. 1 (2014), s.232-274
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/s11600-014-0242-5
- Verified by:
- Gdańsk University of Technology
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