Regional models of flow-duration curves of perennial and intermittent streams and their use for calibrating the parameters of a rainfall-runoff model

被引:10
作者
Costa, Veber [1 ]
Fernandes, Wilson [1 ]
Naghettini, Mauro [1 ]
机构
[1] Univ Fed Minas Gerais, Dept Hydraul & Water Resources Engn, Escola Engn, Belo Horizonte, MG, Brazil
来源
HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES | 2014年 / 59卷 / 02期
关键词
regional models; flow-duration curve; extended Burr XII probability distribution; modeles regionaux; courbe des debits classes; distribution de probabilite; etendue de Burr XII; BURR-XII SYSTEM; CATCHMENTS; REGIMES;
D O I
10.1080/02626667.2013.802093
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
One of the main challenges faced by hydrologists and water engineers is the estimation of variables needed for water resources planning and management in ungauged river basins. To this end, techniques for transposing information, such as hydrological regional analyses, are widely employed. A method is presented for regionalizing flow-duration curves (FDCs) in perennial, intermittent and ephemeral rivers, based on the extended Burr XII probability distribution. This distribution shows great flexibility to fit data, with accurate reproduction of flow extremes. The performance analysis showed that, in general, the regional models are able to synthesize FDCs in ungauged basins, with a few possible drawbacks in the application of the method to intermittent and ephemeral rivers. In addition to the regional models, we summarize the experience of using synthetic FDCs for the indirect calibration of the Rio Grande rainfall-runoff model parameters in ungauged basins.Editor D. KoutsoyiannisCitation Costa, V., Fernandes, W., and Naghettini, M., 2013. Regional models of flow-duration curves of perennial and intermittent streams and their use for calibrating the parameters of a rainfall-runoff model. Hydrological Sciences Journal, 59 (2), 262-277. ResumeL'une des principales difficultes rencontrees par les hydrologues et les ingenieurs dans le domaine de l'eau est l'estimation des variables necessaires a la planification et a la gestion des ressources en eau dans des bassins fluviaux non jauges. A cette fin, les techniques de transposition de l'information, telles que les analyses hydrologiques regionales, sont largement utilisees. Nous presentons une methode de regionalisation des courbes de debits classes pour les rivieres perennes, intermittentes et saisonnieres, basee sur la distribution de probabilite etendue de Burr XII. Cette distribution presente une grande flexibilite pour s'ajuster aux donnees, avec une reproduction precise des extremes de debit. L'analyse des performances a montre qu'en general, les modeles regionaux sont capables de synthetiser des courbes de debits classes dans les bassins versants non jauges, avec quelques inconvenients possibles dans l'application de la methode aux rivieres intermittentes et saisonnieres. En plus des modeles regionaux, nous resumons l'experience d'utilisation des courbes de debits classes synthetiques pour le calage indirect des parametres du modele pluie-debit du Rio Grande pour des bassins versants non jauges.
引用
收藏
页码:262 / 277
页数:16
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