1993
DOI: 10.1080/02626669309492649
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Homogeneous region delineation based on annual flood generation mechanisms

Abstract: Flood distributions can have unimodal or multimodal densities due to different flood generation mechanisms such as snowmelt and rainfall in the annual flood series. When applying nonparametric frequency analysis to annual flood data from the province of New Brunswick in Canada, unimodal, bimodal and heavy-tailed distribution shapes were found. By grouping basins with similarly-shaped densities on a geographical basis, homogeneous regions were delineated. Regional equations derived for a homogeneous region gave… Show more

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Cited by 20 publications
(14 citation statements)
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References 25 publications
(33 reference statements)
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“…Homogeneous regions are de®ned in this paper as spatially contiguous groups of watersheds with similar ood-generating mechanisms (Gingras and Adamowski, 1993). In this study, spatially explicit methods are used in each of the three steps in regional FFA:…”
Section: Regional Flood Frequency Analysismentioning
confidence: 99%
See 1 more Smart Citation
“…Homogeneous regions are de®ned in this paper as spatially contiguous groups of watersheds with similar ood-generating mechanisms (Gingras and Adamowski, 1993). In this study, spatially explicit methods are used in each of the three steps in regional FFA:…”
Section: Regional Flood Frequency Analysismentioning
confidence: 99%
“…The purpose of this article is to extend recent developments in non-parametric (Gingras and Adamowski, 1993) and L-moment (Hosking and Wallis, 1995) techniques for regional FFA by treating at-site¯ood parameters as spatially continuous random variables. This is done using GIS and geostatistical methods such as visualization, semi-variograms and kriging.…”
Section: Introductionmentioning
confidence: 99%
“…La delimitación de regiones hidrológicas homogé-neas constituye la etapa más difícil y uno de los obstá-culos más serios para obtener una solución regional satisfactoria (Simithers et al, 2001;Gingras et al, 1993). En zonas montañosas, las características fi siográfi cas infl uyen en la distribución espacial irregular de las variables climáticas.…”
Section: Introductionunclassified
“…Mais elle repose jusqu'à présent sur l'utilisation d'un seul paramètre, le volume d'écoulement (ANCTIL et al, 1998;2000;BELZILE ef al., 1997;DAVIAU et al, 2000;DESFORGES et TREMBLAY, 1974;GINGRAS et ADAMOWSKI, 1993;GINGRAS étal., 1994;GREHYS, 1996). Cette approche ne permet ni de caracté-riser écologiquement les régimes hydrologiques ni de mettre en évidence les facteurs qui influencent leur variabilité spatiale.…”
Section: -Introductionunclassified