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Annual runoff regional frequency analysis in Sicily
Physics and Chemistry of the Earth, Parts A/B/C, 2009Abstract This paper performs annual runoff frequency analysis in Sicily, Italy using the index runoff method. Homogeneous regions, not necessarily defined by geographical boundaries but sharing common features from a morphologic and climatic standpoint, have been identified.
CANNAROZZO, Marcella +3 more
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Regional Frequency Analysis of Hydrologic Variables
2016In its 1988 report the US National Research Council (NRC) Committee on Estimating the Probabilities of Extreme Floods identified three principles for improving flood estimation. These are (1) “substitution of space for time”; (2) introduction of more “structure” into the models; and (3) focus on extremes or tails as opposed to or even to the exclusion ...
Mauro Naghettini +1 more
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Some statistics useful in regional frequency analysis
Water Resources Research, 1993Regional frequency analysis uses data from a number of measuring sites. A “region” is a group of sites each of which is assumed to have data drawn from the same frequency distribution. The analysis involves the assignment of sites to regions, testing whether the proposed regions are indeed homogeneous, and choice of suitable distributions to fit to ...
J. R. M. Hosking, J. R. Wallis
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Non-linear canonical correlation analysis in regional frequency analysis
Stochastic Environmental Research and Risk Assessment, 2015Hydrological processes are complex non-linear phenomena. Canonical correlation analysis (CCA) is frequently used in regional frequency analysis (RFA) to delineate hydrological neighborhoods. Although non-linear CCA (NL-CCA) is widely used in several fields, it has not been used in hydrology, particularly in RFA.
Ouali, Dhouha +2 more
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Effect of Regionalization on Flood Frequency Analysis
2008Watersheds in a region can be classified into homogeneous groups by using the regionalization methods discussed in the previous chapters. Regionalization is, however, only a prelude to flood frequency analysis and several aspects related to flood estimation remain to be examined.
En-Ching Hsu +2 more
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Regional flood frequency analysis I: Homogeneity statistics
Hydrological Sciences Journal, 1986ABSTRACT In the first of two papers the development of two statistical tests of region homogeneity for use in regional flood frequency analysis is described and the properties of the test statistics are examined. The preferred test is based on the distribution function of the regional parent and its power is shown to depend on region size, record ...
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Regional flood frequency analysis in hydrologically diverse regions.
To reduce flood risk, it is crucial to accurately estimate design floods, which is a flood discharge associated with a specific annual exceedance probability. The main aim of this study is to devise an approach to carry out a Regional Flood Frequency Analysis within hydrologically similar sub-regions to estimate design floods for gauged and ungauged ...openaire +2 more sources
Regional flood frequency analysis by nonparametric methods.
2009Parametric methods, currently used in regional flood frequency analysis, have numerous drawbacks and limitations, especially with regard to flood distribution selection and regional relationship form. Alternative approaches involving nonparametric methods are investigated in this thesis on a set of New Brunswick annual maximum floods.
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Regional flood frequency analysis for Ceyhan Basin [PDF]
, 2013 Regional flood frequency techniques are commonly used to estimate flood quantiles when flood data are unavailable or the record length at an individual gauging station is insufficient for reliable analyses. These methods compensate for limited or unavailable data by pooling data from nearby gauged sites.
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