Browsing Articles publicats (Grup de Recerca de Dinàmica Fluvial (RIUS)) by Title
Now showing items 1-20 of 45
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A framework for Hydrological characterisation to support Functional Flows (HyFFlow): Application to a tropical river
(Elsevier, 2021)Study region: Sarawak, Malaysia. Study focus: This paper presents a framework (‘HyFFlow’) designed to provide a systematic characterisation of river flow regimes. HyFFlow consists of four packages, together yielding ... -
Accuracy assessment of digital terrain model dataset sources for hydrogeomorphological modelling in small Mediterranean catchments
(MDPI, 2018)Digital terrain models (DTMs) are a fundamental source of information in Earth sciences. DTM-based studies, however, can contain remarkable biases if limitations and inaccuracies in these models are disregarded. In this ... -
Aplicación de algoritmos Structure from Motion (SfM) para el análisis histórico de cambios en la geomorfología fluvial
(Sociedad Española de Geomorfología y Asociación Española para el Estudio del Cuaternario, 2018-06-29)En el presente artículo se presenta el flujo de trabajo para la obtención de información espacial utilizada para el análisis de cambios geomorfológicos fluviales en el tramo alto del río Cinca (Pirineo Aragonés) durante ... -
Application of Structure‐from‐Motion photogrammetry to river restoration
(John Wiley & Sons, 2016-11-08)Structure‐from‐Motion (SfM) photogrammetry is now used widely to study a range of earth surface processes and landforms, and is fast becoming a core tool in fluvial geomorphology. SfM photogrammetry allows extraction of ... -
Assessing controls on the displacement of tracers in gravel-bed rivers
(MDPI, 2019-07-31)Particle travel length is one of the main dimensions of bedload and strongly influences river morpho-dynamics, particularly when exploring the interactions between sediment transport and channel morphology. This process ... -
Asynchronicity of fine sediment supply and its effects on transport and storage in a regulated river
(Springer, 2018)Purpose A disconnected ephemeral tributary was reconnected to the regulated River Ehen (NW England) as part of a river restoration initiative, providing a renewed delivery of sediment to a highly stable and armoured ... -
Balance de agua y sedimentos durante el vaciado del embalse de Sant Llorenç de Montgai (Río Segre)
(Asociación Española para el Estudio del Cuaternario (AEQUA); Sociedad Española de Geomorfología (SEG), 2020-06-26)Reservoirs experience siltation due to total or partial sediment trapping of the materials that come from upstream (incoming load). Reservoir siltation affects hydrology, ecology and socioeconomics, as for instance loss ... -
Bed-material entrainment in a mountain river affected by hydropeaking
(Elsevier, 2023-01-15)Hydropeaking, by artificially generated flow peaks, influences hydro-sedimentary dynamics on rivers and, consequently, affects bed material entrainment and transport. This study examines the onset of motion of sediment ... -
Dinámica Geomorfológica del frente costero del valle de Teixedelo (NO Península Ibérica) entre 1945 y 2014
(Departamento de Geografía, FAUG de la Universidad de la Concepción, Chile, 2017-05-17)Se ha estudiado la dinámica de un sector de los acantilados de A Capelada (Galicia, NO Península Ibérica), lugar de gran interés por su constitución geológica, geomorfológica y de paisaje. El rasgo más singular de la fachada ... -
Do badlands (always) control sediment yield? Evidence from a small intermittent catchment
(Elsevier, 2021)The objective of this paper is to analyse the production and the yield of fine sediment in a small mountain catchment (10 km2), characterised by patches of badlands (25% of the catchment area) and drained by intermitten ... -
Downstream changes of particle entrainment in a hydropeaked river
(Elsevier, 2020-11-25)Hydropeaking, through artificially generated flow peaks, affects hydro-sedimentary dynamics on rivers. The frequency and magnitude of such artificial flow pulses impact sedimentary process and, inevitably, affects bed-material ... -
Dynamics of suspended sediment borne persistent organic pollutants in a large regulated Mediterranean river (Ebro, NE Spain)
(Elsevier, 2013)Mediterranean rivers are characterized by highly variable hydrological regimes that are strongly dependent on the seasonal rainfall. Sediment transport is closely related to the occurrence of flash-floods capable to deliver ... -
Effects of flow regulation on river bed dynamics and invertebrate communities in a Mediterranean river
(Springer International Publishing, 2016)Mediterranean rivers are hotspots for biodiversity, and riverine species are adapted to regular physical perturbations that affect channel morphology during flashy rainfall-runoff events. Dams alter flow regimes, ... -
Effects of hydropeaking on bed mobility: evidence from a Pyrenean river
(MDPI, 2020-01-08)Hydropower production involves significant impacts on the dynamics and continuity of river systems. In this paper we analyse the effects of hydropeaks on river-bed particle mobility along a 2-km river channel. For this, a ... -
Evaluación de fórmulas de transporte de fondo en un río de gravas acorazado
(Instituto Mexicano de Tecnología del Agua (IMTA), 2015)El curso bajo del río Ebro (NE península Ibérica) presenta un cauce con lecho de gravas que discurre aguas abajo de un complejo de embalses. En dicho tramo, el lecho experimenta ciclos de rotura y restablecimiento de la ... -
Evaluation of bed load transport formulae in a large regulated gravel bed river: The lower Ebro (NE Iberian Peninsula)
(Elsevier, 2014-03-14)This paper tests the predictive power of 10 bed load formulae against bed load rates obtained for a large regulated river (River Ebro) the armor layer of which is subject to repeated cycles of break-up and reestablishment. ... -
From experimental plots to experimental landscapes: topography, erosion and deposition in sub‐humid badlands from Structure‐from‐Motion photogrammetry
(John Wiley & Sons, Ltd., 2015-04-22)In the last decade advances in surveying technology have opened up the possibility of representing topography and monitoring surface changes over experimental plots (<10 m2) in high resolution (~103 points m‐1). Yet the ... -
Geomorphological response to system‐scale river rehabilitation I: Sediment supply from a reconnected tributary
(John Wiley & Sons Ltd, 2020-07-26)This paper is the first of a pair that report the findings of a river rehabilitation project centred on the reconnection of a formerly diverted headwater tributary (Ben Gill) to its main‐stem river (the River Ehen). The ... -
Geomorphological response to system‐scale river rehabilitation II: Main‐stem channel adjustments following reconnection of an ephemeral tributary
(John Wiley & Sons Ltd, 2020-07-26)This paper describes changes in bed morpho‐dynamics and topography in the River Ehen, a regulated river in NW England (i.e., temperate climate) following a rehabilitation project that reconnected a formerly diverted headwater ... -
Historical, hydraulic, hydrological and meteorological reconstruction of 1874 Santa Tecla flash floods in Catalonia (NE Iberian Peninsula)
(Elsevier, 2015-02-16)A multidisciplinary methodology for historical floods reconstruction was applied to 1874 Santa Tecla floods occurred in Catalonia (NE Iberian Peninsula), using both historical information and meteorological data from 20th ...