Quantifying uncertainties associated with depth duration frequency curves

Uncertainty in depth–duration–frequency (DDF) curves is usually disregarded in the view of difficulties associated in assigning a value to it. In central Iran, precipitation duration is often long and characterized with low intensity leading to a considerable uncertainty in the parameters of the pro...

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Main Authors: Mirzaei, Majid, Huang, Yuk Feng, Lee, Teang Shui, El-Shafie, Ahmed, Ghazali, Abdul Halim
Format: Article
Published: Springer Netherlands 2014
Online Access:http://psasir.upm.edu.my/id/eprint/35136/
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author Mirzaei, Majid
Huang, Yuk Feng
Lee, Teang Shui
El-Shafie, Ahmed
Ghazali, Abdul Halim
author_facet Mirzaei, Majid
Huang, Yuk Feng
Lee, Teang Shui
El-Shafie, Ahmed
Ghazali, Abdul Halim
author_sort Mirzaei, Majid
building UPM Institutional Repository
collection Online Access
description Uncertainty in depth–duration–frequency (DDF) curves is usually disregarded in the view of difficulties associated in assigning a value to it. In central Iran, precipitation duration is often long and characterized with low intensity leading to a considerable uncertainty in the parameters of the probabilistic distributions describing rainfall depth. In this paper, the daily rainfall depths from 4 stations in the Zayanderood basin, Iran, were analysed, and a generalized extreme value distribution was fitted to the maximum yearly rainfall for durations of 1, 2, 3, 4 and 5 days. DDF curves were described as a function of rainfall duration (D) and return period (T). Uncertainties of the rainfall depth in the DDF curves were estimated with the bootstrap sampling method and were described by a normal probability density function. Standard deviations were modeled as a function of rainfall duration and rainfall depth using 104 bootstrap samples for all the durations and return periods considered for each rainfall station.
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spelling upm-351362015-12-30T11:10:57Z http://psasir.upm.edu.my/id/eprint/35136/ Quantifying uncertainties associated with depth duration frequency curves Mirzaei, Majid Huang, Yuk Feng Lee, Teang Shui El-Shafie, Ahmed Ghazali, Abdul Halim Uncertainty in depth–duration–frequency (DDF) curves is usually disregarded in the view of difficulties associated in assigning a value to it. In central Iran, precipitation duration is often long and characterized with low intensity leading to a considerable uncertainty in the parameters of the probabilistic distributions describing rainfall depth. In this paper, the daily rainfall depths from 4 stations in the Zayanderood basin, Iran, were analysed, and a generalized extreme value distribution was fitted to the maximum yearly rainfall for durations of 1, 2, 3, 4 and 5 days. DDF curves were described as a function of rainfall duration (D) and return period (T). Uncertainties of the rainfall depth in the DDF curves were estimated with the bootstrap sampling method and were described by a normal probability density function. Standard deviations were modeled as a function of rainfall duration and rainfall depth using 104 bootstrap samples for all the durations and return periods considered for each rainfall station. Springer Netherlands 2014-03 Article PeerReviewed Mirzaei, Majid and Huang, Yuk Feng and Lee, Teang Shui and El-Shafie, Ahmed and Ghazali, Abdul Halim (2014) Quantifying uncertainties associated with depth duration frequency curves. Natural Hazards, 71 (2). pp. 1227-1239. ISSN 0921-030X; ESSN: 1573-0840 http://link.springer.com/article/10.1007%2Fs11069-013-0819-3 10.1007/s11069-013-0819-3
spellingShingle Mirzaei, Majid
Huang, Yuk Feng
Lee, Teang Shui
El-Shafie, Ahmed
Ghazali, Abdul Halim
Quantifying uncertainties associated with depth duration frequency curves
title Quantifying uncertainties associated with depth duration frequency curves
title_full Quantifying uncertainties associated with depth duration frequency curves
title_fullStr Quantifying uncertainties associated with depth duration frequency curves
title_full_unstemmed Quantifying uncertainties associated with depth duration frequency curves
title_short Quantifying uncertainties associated with depth duration frequency curves
title_sort quantifying uncertainties associated with depth duration frequency curves
url http://psasir.upm.edu.my/id/eprint/35136/
http://psasir.upm.edu.my/id/eprint/35136/
http://psasir.upm.edu.my/id/eprint/35136/