A graphical approach to characterize sub-daily flow regimes and evaluate its alterations due to hydropeaking

Alonso González, Carlos; Román de Andrés, Alfonso; Bejarano Carrión, María Dolores; García de Jalón Lastra, Diego y Carolli, Mauro (2017). A graphical approach to characterize sub-daily flow regimes and evaluate its alterations due to hydropeaking. "SCIENCE OF THE TOTAL ENVIRONMENT", v. 574 ; pp. 532-543. ISSN 0048-9697. https://doi.org/10.1016/j.scitotenv.2016.09.087.

Descripción

Título: A graphical approach to characterize sub-daily flow regimes and evaluate its alterations due to hydropeaking
Autor/es:
  • Alonso González, Carlos
  • Román de Andrés, Alfonso
  • Bejarano Carrión, María Dolores
  • García de Jalón Lastra, Diego
  • Carolli, Mauro
Tipo de Documento: Artículo
Título de Revista/Publicación: SCIENCE OF THE TOTAL ENVIRONMENT
Fecha: Enero 2017
Volumen: 574
Materias:
Palabras Clave Informales: Hydropeaking; Graphical characterization; Short-term flow fluctuation; Ecohydraulics; Hydropower; Flow regulation
Escuela: E.U.I.T. Forestal (UPM) [antigua denominación]
Departamento: Sistemas y Recursos Naturales
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Most flow regime characterizations focus on long time scale flow patterns, which are not precise enough to capture key components of short-term flow fluctuations. Recent proposed methods describing sub-daily flow fluctuations are focused on limited components of the flow regime being unable to fully represent it, or on the identification of peaking events based on subjectively defined thresholds, being unsuitable for evaluations of short-term flow regime alterations through comparisons between regulated and free-flowing rivers. This study aims to launch an innovative approach based on the visual display of quantitative information to address the challenge of the short-term hydrologic characterization and evaluation of alteration resulting from hydropeaking. We propose a graphical method to represent a discrete set of ecologically relevant indices that characterize and evaluate the alteration of sub-daily flow regimes. The frequency of occurrence of classified values of a descriptive hydrological variable is represented in a map-like graph where longitude, latitude and altitude represent the Julian day, the value of the variable and the frequency of occurrence, respectively. Subsequently, we tested the method on several rivers, both free-flowing and subjected to hydropower production. The advantages of our approach compared to other analytical methods are: (i) it displays a great amount of information without oversimplification; (ii) it takes into account changes in the intensity, timing and frequency of the sub-daily flows, without needing a priori defined thresholds to identify hydropeaking events; and (iii) it supports the Water Framework Directive goal. Specifically, results from applications of our graphical method agree with Sauterleute and Charmasson (2014) analytical method.

Más información

ID de Registro: 50494
Identificador DC: http://oa.upm.es/50494/
Identificador OAI: oai:oa.upm.es:50494
Identificador DOI: 10.1016/j.scitotenv.2016.09.087
Depositado por: Memoria Investigacion
Depositado el: 26 Abr 2018 12:53
Ultima Modificación: 03 May 2018 14:56
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