A new approach to master recession curve analysis

被引:21
|
作者
Fiorotto, Virgilio [1 ]
Caroni, Elpidio [1 ]
机构
[1] Univ Trieste, Dipartimento Ingn & Architettura, I-34127 Trieste, Italy
关键词
master recession curve; recession; river droughts; water management; courbe de recession moyenne; etiages; gestion de l'eau; BASEFLOW RECESSION; FLOW RECESSION; HYDRAULIC-JUMP; SEPARATION; STREAMFLOW; HYDROGRAPH; WATERSHEDS;
D O I
10.1080/02626667.2013.788248
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
The analysis of drought discharge is of utmost relevance in the design of water intake structures, management of water resources, and in coping with environmental issues. In this context, the master recession curve represents a tool in hydrological analysis, giving integrated information on long period drought flow rates. In this paper, a technique is developed for deriving a master recession curve directly from daily discharge series that takes into account the high variability in the behaviour of individual recession segments. The statistical framework developed allows us to explicitly represent uncertainty, and hence a novel interpretation of the master recession curve is derived. The method is successfully applied to three important Italian basins draining the southern slopes of the eastern Alps. Citation Fiorotto, V. and Caroni, E., 2013. A new approach to master recession curve analysis. Hydrological Sciences Journal, 58 (5), 966-975. Resume L'analyse des debits d'etiage est d'une importance capitale pour la conception des ouvrages de prise d'eau, la gestion des ressources en eau, et pour faire face aux problemes environnementaux. Dans ce contexte, la courbe de recession moyenne represente un instrument d'analyse hydrologique, fournissant une information sur les debits d'etiage integree sur une longue periode. Dans ce papier, on presente une technique destinee a construire une courbe de decrue moyenne directement a partir de la serie des debits journaliers, prenant en compte de la grande variabilite du comportement des segments de recession individuels. Le cadre statistique mis au point nous permet de representer explicitement l'incertitude, d'oU l'on tire une nouvelle interpretation de la courbe de recession moyenne. La methode a ete appliquee avec succes a trois importants bassins italiens du versant Sud des Alpes orientales. Citation Fiorotto, V. and Caroni, E., 2013. A new approach to master recession curve analysis. Hydrological Sciences Journal, 58 (5), 966-975.
引用
收藏
页码:966 / 975
页数:10
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