River Flow 2020 Proceedings of the 10th Conference on Fluvial Hydraulics (Delft, Netherlands, 7-10 July 2020)

Rivers form one of the lifelines in our society by providing essential services such as availability of fresh water, navigation, energy, ecosystem services, and flood conveyance. Because of this essential role, mankind has interfered continuously in order to benefit most and at the same time avoid adverse consequences such as flood risk and droughts. This has resulted in often highly engineered rivers with a narrow set of functions. In the last decades rivers are increasingly considered in a more holistic manner as a system with a multitude of interdependent processes. River research and engineering has therefore added to the river fundamentals also themes like ecohydraulics, consequences of climate change, and urbanisation.

River Flow 2020 contains the contributions presented at the 10^th conference on Fluvial Hydraulics, River Flow 2020, organised under the auspices of the Committee on Fluvial Hydraulics of the International Association for Hydro-Environment Engineering and Research (IAHR). What should have been a lively physical gathering of researchers, students and practitioners, was converted into an online event as the COVID-19 pandemic hindered international travelling and large gatherings of people. Nevertheless, the fluvial hydraulics community showed their interest and to be very much alive with a high number of participations for such event. Since its first edition in 2002, in Louvain-la-Neuve, this series of conferences has found a large and loyal audience in the river research and engineering community while being also attractive to the new researchers and young professionals. This is highlighted by the large number of contributions applying for the Coleman award for young researchers, and also by the number of applications and attendants to the Master Classes which are aimed at young researchers and students.

River Flow 2020 aims to provide an updated overview of the ongoing research in this wide range of topics, and contains five major themes which are focus of research in the fluvial environment: river fundamentals, the digital river, the healthy river, extreme events and rivers under pressure. Other highlights of River Flow 2020 include the substantial number of interdisciplinary subthemes and sessions of special interest. The contributions will therefore be of interest to academics in hydraulics, hydrology and environmental engineering as well as practitioners that would like to be updated about the newest findings and hot themes in river research and engineering.

Preface

Local Organising Committee

International Scientific Committee

IAHR Committee on Fluvial Hydraulics

When a tree falls in a river. . . a cascade process begins, V. Ruiz-Villanueva

Future generations’ rights and climate change litigation: The colombian case, G. Eslava Bejarano

Rivers dynamics in regions of rapid climate change, I. Overeem

Theme: River fundamentals

Sub-theme: Fluid mechanics

Spatial averaging over a variable volume and its implications for simulation of open channel flows over permeable beds, A. Bello, D. Pokrajac & A. Leonardi

Modeling turbulent stream flows over rough permeable beds, G. Rousseau, I. Pascal & C. Ancey

Double-averaged momentum and energy budgets for open-channel flows over self-affine bed roughness, S.M. Cameron, V.I. Nikora & M.T. Stewart

Three-dimensional flow structures of straight rough-bed channels with different aspect ratios, Y. Takakuwa & S. Fukuoka

Secondary currents in smooth-wall open channel flow, M. Khanarmuei, Y. Akutina, V. Dupuis, O. Eiff, M. Trevisson, K. Suara & R.J. Brown

Effect of free surface perturbation on mean and turbulence characteristics in a smooth open channel flow, S. Das, R. Balachandar, R. Barron & V. Roussinova

Wave and bed-friction effect on instability of shear flow in shallow waters, B. Yu & V.H. Chu

Predicting the vortex shedding frequency at an open-channel lateral cavity, C. Perrot-Minot, E. Mignot, N. Rivière & D. Lopez

Emergence of Kelvin-Helmholtz instabilities in shallow mixing layers: An experimental study, S. Proust, C. Berni & V.I. Nikora

Modelling of the apparent shear stress for predicting zonal discharge in rough and smooth asymmetric compound open channels, P. Singh, X. Tang & H.R. Rahimi

Apparent shear in compound channels with non-uniform flow, K. Devi, B.S. Das, J.R. Khuntia & K.K. Khatua

Flow in river bends: 3D and 2D modelling, V. Chavarrias, A.v. Dongeren, H. Kernkamp, W. Ottevanger & M.F.M. Yossef

Hydrodynamics of sinuous channel with seepage, J. Taye, B. Kumar, G. Caroppi & P. Gualtieri

Effect of horizontal confinement on developing flow over a rough porous bed, P. Williams, V. Roussinova, R. Balachandar & R. Barron

Density driven mixing layer in environmental flows: A high-resolution remote sensing image based, numerical simulation and field measurements aided confluence mixing model, D. Wang & M.H. García

Entrainment in lock-release gravity currents propagating up a slope, M.C. De Falco, L. Ottolenghi & C. Adduce

Lagrangian simulation of water chute disaggregation, A. Mokos, D. Violeau, T. Fonty & Y. Bercovitz

A first simulation of a model aquatic canopy at high Cauchy number, B. Löhrer, D. Doppler, S. Puijalon, N. Rivière, J.J.S. Jerome & J. Fröhlich

Velocity field in a single row canopy made of flexible blades for astatic reconfiguration case and a monami case, B. Löhrer, J.J.S. Jerome, S. Barsu, N. Rivière, D. Doppler & J. Fröhlich

Understanding inertial particle effects on turbulence-particle interactions in dilute suspensions using two-phase flow Large Eddy Simulations, A Mathieu, J. Chauchat, C. Bonamy, G. Balarac & T.-J. Hsu

Separation flow characteristics upstream of finite crest length weir with a downstream ramp, J.Y. Bang, I.W. Seo & B.U. Kim

Turbulence structures in flows over a submerged weir, C. Ban & S.-U. Choi

Flow structures around laterally and vertically hybrid spur dike, A. Tominaga, O. Safie & H. Komura

Experimental analysis of turbulent open channel flow in the near-wake region of a surface-mounted horizontal circular cylinder, K. Devi & P.R. Hanmaiahgari

Flow characteristics around pile-group groynes with different arrangements of piles, O. Safie & A. Tominaga

Temporal variability of bidirectional seiching in an open-channel, lateral cavity, L. Engelen, C. Perrot-Minot, E. Mignot, N. Rivière & T. De Mulder

Sub-theme: Sediment transport

Particle motion and sediment transport over bedforms, R.C. Terwisscha van Scheltinga, G. Coco & H. Friedrich

Turbulent sediment transport processes in energetic sediment-laden open-channel flows, H. Guta, D. Hurther & J. Chauchat

Using instrumented particles to assess the dynamics of sediment transport for above threshold of motion turbulent flows, Z. Alhusban & M. Valyrakis

Lagrangian statistics of bed-load particle transport from experiments with a long measurement domain, F. Ballio, D. Claut, S.A. Hosseini Sadabadi, A. Marion, A. Radice, S.J. Tait, S. Sarkar, G. Simeone & A.R. Zarrati

Experimental investigation of the morpho- and hydrodynamics of fine sediment erosion over a fixed coarse-grain bed,M. Trevisson, O. Eiff & Y. Akutina

Effects of sediment influx on sediment transport characteristics in a river channel,S. Rabab, M. Gormley, L. Beevers & A. Cuthbertson

The growth process of river dunes, S. Naqshband & A.J.F. Hoitink

A new 2D bedload transport model based on non-capacity approach to overcome the problems associated to finite-depth sediment layers, S.Martínez-Aranda, J. Murillo & P. García-Navarro

Modelling of massive bedload deposition in a debris basin: Cross comparison between numerical and small scale modelling, M.G. de Linares, V. Mano, G. Piton & A. Recking

Sediment transport potential in a channelized floodplain, S. Sumaiya, J.T. Schubert & J.A. Czuba

Effects of irregular particle shapes on the sediment movement and transport rate in gravelbed channels, T. Atsumi & S. Fukuoka

Effect of the shape of a sediment particle on its jump, R. Jain, H.T. Korb, S. Tschisgale & J. Fröhlich

Combined load in open channel: Modelling of transport layer at high bed shear, V. Matoušek & Š. Zrostlík

A numerical investigation on sediment erosion in confluence channel with erodible and nonerodible banks, Q. Yang, M. Guan, J. Zhai & X. Wang

Anchor-ice rafting, an important mechanism for bed-sediment transport in cold-regions rivers, E.W. Kempema, R. Ettema & K. Bunte

Numerical modeling of flow and sediment transport in a real shallow reservoir: Comparison between 2D and 3D simulation, N. Claude, M. Secher, J. Deng, E. Valette & M. Duclercq

Hydrac, an inversion software for SPM quantification, G. Fromant, D. Hurther, N.L. Dantec, A. Lebourges-Dhaussy, F. Jourdin, A. Vergnes, J. Le Coz, S. Fisher & G. Pierrefeu

Experiments to assess the efficacy of sediment flushing in reservoirs, S. Guillén-Ludeña, J.A. Toapaxi, J.M. Carrillo & L.G. Castillo

Reservoir sedimentation management with upstream sediment remanipulated, T. Li & G.B. Pasternack

Numerical analysis of bed development during pressure flushing with partial drawdown, M. Kunz, K. Mouris, S. Haun, S.K. Karmacharya & N. Rüther

Tracking the mean annual velocity and vertical mixing of bedload tracers, A. Cain, M. Iannetta, C. Muirhead, E. Papangelakis, T. Raso, B.J. MacVicar & P. Ashmore

Fluvial erosion of glacial tills and clay deposits: Sampling method, L. Gonthier, D. Yeats & S. Gaskin

Bed-material transport over entrance sills at longitudinal training walls, W.J. van Os, W.S.J. Uijttewaal, R.J. Labeur, A.L. Osorio, E. Mosselman & L.R. Lokin

Numerical modelling of sediment deposition in Lake Mills, USA, N.R.B. Olsen

Measurement of sand transport with a submerged pump: Presentation of the results of a test campaign carried outon the Isère River in July 2019, A. Recking, F. Fontaine, M. Regazzoni, F. Lauters, S. Zanker, L. Brunet, B. Camenen & T. Geay

Incipient motion of gravel-boulder sediment particles in rivers of Costa Rica, L. Alvarez & R.E. Murillo-Muñoz

Sub-theme: Morphodynamics

A study on multifactorial riverbed degradation, C. Ferrer-Boix & J.P. Martín-Vide

Estimating erosion and deposition without morphodynamic models, E.G. Pearson, J.L. Carrivick, B. Hankin & R. Lamb

Changes in the equilibrium river profile due to interventions, R.P. van Denderen, E. Kater, L.H. Jans & R.M.J. Schielen

Evaluation of geomorphological characteristics in a quasi-equilibrium river channel, R.K. Biswas, S. Egashira, D. Harada & H. Ito

The morphological response of an alpine catchment to a large infrequent disturbance, G. Pellegrini, A. Cazorzi, R. Rainato, L. Martini, L. Picco & M. Cavalli

Significance of deep-channel dynamics at Lower Jamuna bifurcation, S. Giri, G. Donchyts, A. Thompson, E. Mosselman & J. Alam

Effect of tides on stability of bifurcations in river deltas, A.P. Iwantoro, M. van der Vegt & M.G. Kleinhans

Modelling amplification effects of cascading failures of landside dams, M. Guan & Q. Yang

Morphodynamics of downstream fining in rivers with unimodal sand-gravel feed, C. An, G. Parker, X. Fu, M.P. Lamb & J.G. Venditti

Effect of bank roughness on step-pool systems in steep channels, F. Maager, B. Hohermuth, V. Weitbrecht & R.M. Boes

Field investigation of bedforms and flow resistance in a large sand river, L. Schippa

Changes in braided river morphology resulting from a flood sequence, R.L. Fernandez, D. Parsons, S. Mclelland & B. Bodewes

Upstream channel degradation triggered by a meander cutoff: Potential replacement for channel dredging, K. Naito, L. Guerrero, H. Valverde, Y. Estrada, F. Fuentes, B. Santillan, G. Valvidia,J.D. Abad & T. Iwasaki

Modeling the planform development of confined meandering rivers, H. Amini, S. Zen, F. Monegaglia, S. Lanzoni, M. Tubino & G. Zolezzi

2D numerical modeling on meander chute cutoffs, Z. Li & M.H. García

Numerical simulation study of a bend-cut resolution to flood control at Fu River tail, Poyang Lake of China, H. Ge & L. Zhu

Effect of flow unsteadiness on the long-term evolution of alternate bars, M. Carlin, M. Redolfi & M. Tubino

Aspects of the formation of dunes in gravel streams, K. Lockwood & A.M.F. da Silva

A specific energy diagram for antidunes, F. Núñez-González, J.P. Martín-Vide & N.R.B. Olsen

Superimposed bedforms in the Rhine-Meuse delta, J.Y. Poelman, S. Naqshband & A.J.F. Hoitink

Numerical simulation of dune movements during a flood event in River Elbe, Germany, R. Kopmann

Effect of alternate expansion and contraction of width on the river morphology, T. Karmaker, D.N. Ratha, H. Singh, J. Singh, J. Mangla, J. Gupta, J. Singh, K. Singh, K. Kaswan & K. Chauhan

Influence of bed forms on stage discharge relations in compound channels, T. Branß, J. Aberle & F. Núñez-González

Bed morphology evolution and 3D-flow field characterization at a lateral water intake, J.B. Baltazar, E. Alves, G. Bombar & A.H. Cardoso

An experimental study on the overbank sedimentation in an asymmetrical compound channel, C. Juez, C. Schaerer, H. Jenny, A.J. Schleiss & M.J. Franca

Channel-floodplain response to changes in sediment supply and floodplain width, E. Viparelli & E.C. Eke

Optimal conditions for floodplain sedimentation and land aggradation in river deltas, W.J. Gerats, J.H. Nienhuis & H.J. Pierik

Breaching of fluvial dykes: Influence of the dyke geometry, V. Schmitz, S. Erpicum, I. Rifai, K.E.K. Abderrezzak, P. Archambeau, M. Pirotton & B. Dewals

On the equilibrium width of rivers with cohesive erodible banks, S. Francalanci, L. Solari & S. Lanzoni

Assessing the effect of groynes orientation on near-bank flow and morphology in a natural meander bend using 2D numerical simulation, S. Karki, H. Nakagawa, K. Kawaike, M. Hashimoto & Y. Hasegawa

The effect of micro groins on riverbed structures – Comparison of the velocity distribution in experiments with fixed and mobile bed, A. Müller, F. Seidel & F. Nestmann

Hydro-morphological response to the change in groynes position and angle in sine-generated meandering channels of different sinuosity, S. Karki, H. Nakagawa, K. Kawaike & E.J. Langendoen

Study on riverbed variation management by groin at a river confluence associated with the barrage water, Y. Okamoto, J. Nishio, K. Kanda, K. Michioku, F. Nakamura & H. Kubo

Quantifying channel-floodplain connectivity in the Trinity River, TX with numerical modeling and field observations, P. Passalacqua, S. Rahman, H.J. Hassenruck-Gudipati & D. Mohrig

Two-dimensional modelling of bank erosion process in the lower Jingjiang reach of the middle Yangtze River, S.S. Deng, J.Q. Xia & M.R. Zhou

River bed variation of Chongqing reach in upstream of the three gorges reservoir, L. Chunjing, L. jing, L. Fei, G. Leilei & G. Xu

Bed level change in the Upper Rhine Delta and Niederrhein, C.Y. Arbos, A. Blom, F.A. Goldaracena, S. van Vuren & R.M.J. Schielen

Effective discharge calculations: Comparison of classic methods with a morphodynamic model on a reach of the Po River (Italy), S. Borhani, H. Hosseiny & K. Strom

Channel evolution and bank erosion in the Middle Yangtze River after the TGP operation, J.Q. Xia, M.R. Zhou, S.S. Deng & Q.X. Xu

Comparing 2-D and 1-D/2-D modelling of Agly River bed change during a flood, S. Mezbache, A. Paquier & M. Hasbaia

Special session: Scour at in-stream hydraulic structures, organized by Brian M. Crookston & Michele Palermo

Morphometric relation of obstacle marks at boulder-like obstructions in time, O. Schlömer

The influence of in-stream bridge structures on free surface turbulence, E.D. Johnson, W.D. Miller, J. Bowles & G. Smith

Bedload sediment transport induced by channel-spanning instream structures, E.M. Follett & C.A.M.E. Wilson

Analyzing the impact of wooden debris on scour and sediment transport, T. Johannsen, M. Weber & N. Saenger

Predicting maximum scour in bends of sand-bed rivers, D.C. Froehlich & S. Giri

Permeable groundsills in flow alternation and scour control for headwater streams, Y.D. Chen & C.C. Wu

Flow hydrodynamics and scour around bridge pier during tsunami propagation in coastal rivers, A. Wuppukondur & T.E. Baldock

Innovative approach to the design of stilling basin: Improvement of fish migration and scour utilization for energy dissipation, M. Zukal, P. Fošumpaur, T. Kašpar & M. Králík

Sub-theme: Experimental techniques

A methodology to measure the threshold of the incipient motion of sediment load directly in rivers, L. Alvarez & R.E. Murillo-Muñoz

Quantifying uncertainties in the discharge distribution over the river Rhine branches using expert elicitation, S. Steenblik, M.R.A. Gensen, J.J. Warmink & S.J.M.H. Hulscher

Optimal river cross section for both flood control and aquatic habitat in gravel beds, Y. Yasuda & P.B. Piccoli

Measuring suspended mud flocs in the laboratory: A comparison between two methods, E. Abolfazli, R. Osborn & K. Strom

A simple theory and experiments for onset of flocculation in kaolin clay suspensions, N. Rommelfanger, B. Vowinckel, Z. Wang, E. Meiburg & P. Luzzatto-Fegiz

Automated river ice freeze-up monitoring and characterization, S. Ansari, C.D. Rennie, S.P. Clark & O. Seidou

Assessment of sediment disaster and feasibility of countermeasures using physical hydraulic model, C.C. Wu, H.C. Ni, P.H. Wang, C.H. Li, H.L. Chen & C.Y. Hung

On the development and calibration of a miniaturised instrumented particle for geomorphic hazards monitoring, K. Alobaidi & M. Valyrakis

Special session: Instrumentation in river engineering and monitoring of geomorphic processes, organized by Rui Miguel Ferreira & Manousos Valyrakis

New developments of FUDAA-LSPIV, a user-friendly software to perform river velocity measurements in various flow conditions, M. Jodeau, C. Bel, G. Antoine, G. Bodart, J.L. Coz, J.-B. Faure, A. Hauet, F. Leclercq, H. Haddad, C. Legout & B. Marchand

Application of uav system and sfm techniques to develop high-resolution terrain models, M.L. Salandra, D. Capolongo, V. Pennella, S. Nicotri & G. Donvito

The effect of surface gravity waves on the measurement of river surface velocity, G. Dolcetti, S.J. Tait, B. Hortobágyi & M. Perks

Current practices and future directions of monitoring systems for the assessment of geomorphological conditions at bridge infrastructure, P. Michalis, Y. Xu & M. Valyrakis

Monitoring the potential for bridge protections destabilization, using instrumented particles, Y. Xu, K. AlObaidi, P. Michalis & M. Valyrakis

Smart bridge: Towards robust monitoring of environmental hazards, E. Koursari, S.J. Wallace, Y. Xu, P. Michalis & M. Valyrakis

Comparison of PIV and optical flow for river flow applications, L.P.N. Mendes, A.M.C. Ricardo, A.J.M. Bernardino & R.M.L. Ferreira

Calibration of the Swiss plate geophone system at the Zinal field site with direct bedload samples and results from controlled flume experiments, T. Nicollier, D. Rickenmann, S. Boss, E. Travaglini & A. Hartlieb

Integration of low-cost technological solutions for flow rate and bedload transport monitoring in the Caldone river, Italy, V.I. Ivanov, B. Zanchi, M. Papini, A. Radice, L. Barazzetti, L. Zanzi & L. Longoni

Sampling suspended sand in rivers using instantaneous horizontal bottle samplers: A comparison against other techniques, G. Dramais, J. Le Coz, B. Camenen & G. Pierrefeu

Flow patterns and bed changes due to traditional river training structures “Seigyu”, S.A. Kantoush, M.M. A. Mamari, Y. Takemon, M. Saber, O. Habiba, T. Sumi, S. Kobayashi & M. Tazumi

Breaking of internal solitary waves generated by intrusions, G.L. Forgia, L. Ottolenghi & C. Adduce

Dam breach hydraulics and morphodynamics in overtopped earth dams with chimney filter, T. Alvarez, S. Valente, S. Amaral, T. Viseu & R.M.L. Ferreira

A laboratory and numerical study of transverse momentum exchange in vegetated channels, S.H. Truong, U. Ji & W.S.J. Uijttewaal

Large-scale experiments for vegetated flows with different types of vegetation patch layouts, U. Ji, I. Bae, J. Järvelä, K. Västilä, H. Kim & C. Lee

Estimation of transverse mixing coefficients in shallow, gravel-bedded rivers, L. Gond, E. Mignot, J.L. Coz & L. Kateb

Incipient motion of sand under combined flow and full-scale waves, J. Ewers

River training works research to improve navigation conditions on the Elbe River close to the Czech/Germany border, T. Kašpar, P. Fošumpaur, M. Králík & M. Zukal

Theme: The digital river

Sub-theme: Monitoring

GIS and remote sensing for tracking morphological changes and vegetation coverage at the reach scale: The Po River case study, M. Nones & M. Guerrero

Detecting and quantifying morphological change in tropical rivers using google earth engine and image analysis techniques, R.J. Boothroyd, R.D. Williams, B. Barrett, T.B. Hoey, P.L.M. Tolentino, J.E. Perez,E. Guardian, C.P. David & X. Yang

Thirty-year analysis of a changing river system using Bayesian rating curves, K.D. Berends, M.R.A. Gensen, J.J. Warmink & S.J.M.H. Hulscher

Application of convolutional neural network method to measure free surface velocity in open channel flow, T.Y. Chen & H.H-C. Ho

Remote gauging of open channel flow: Estimation of depth averaged velocity from surface velocity and turbulence, G.M. Smart & H.J. Biggs

Determining image-based grain size distribution with suboptimal conditioned photos,M. Detert & V. Weitbrecht

Video-based hydrometry: A Bayesian camera calibration method for uncertainty analysis, J. Le Coz, B. Renard, V. Vansuyt, A. Hauet & M. Jodeau

Monocular 3D reconstruction for image-based velocity estimation, L. Pénard, M. Khalid & E. Mémin

Empirical vs. analytical methods for modelling the uncertainty of ADCP discharge measurements, A. Despax, J.L. Coz, D.S. Mueller, G. Naudet, G. Pierrefeu, K. Delamarre, S.A. Moore & E.C. Jamieson

Flow measurement in step-pool mountain streams, S.T. Kalathil & V. Chandra

Unified framework for drought monitoring and assessmentin a transboundary river basin, R.J. Araneda, J. Puertas, R. Maia & M. Bermúdez

Sub-theme: Numerical modelling

New approaches to solving the Saint-Venant equations, B.R. Hodges, C.-W. Yu & F. Liu

Simulation of resonant gravity waves in shallow water flows using a depth-averaged URANS model, A. Navas-Montilla, C. Juez, M.J. Franca & J. Murillo

A high-order augmented Riemann solver for the treatment of bottom steps and porosity discontinuities in the shallow water equations with porosity, A. Ferrari, R. Vacondio & P. Mignosa

Discontinuous Galerkin method for 1D river flows, I. Draoui, J. Lambrechts, V. Legat, S. Soares-Frazão, T. Hoitink & E. Deleersnijder

Control theory-based update of water levels in 1D hydrodynamic models, M. Milašinović, D. Prodanović, B. Zindović, N. Rosić & N. Milivojević

Flood simulation in urban areas obtained by GPU-accelerated 2D shallow water model with internal boundary conditions, S. Dazzi, R. Vacondio, A. Ferrari, M. D’Oria & P. Mignosa

Improved floodplain vegetation roughness for 1D hydraulic models, A. Crosato, J. Zulfan & A. Vargas-Luna

Numerical modelling of flow dynamics in the Tonle Sap by means of a discontinuous Galerkin finite-element model, H.A. Le, J. Lambrechts, E. Deleersnijder, S. Soares-Frazao, H.A. Le, N. Gratiot, S. Ortleb, N. Gratiot & E. Deleersnijder

Depth averaged numerical simulation of non-cohesive river dike breaching due to overtopping flows, L. Kheloui, K. E.K. Abderrazzak, R. Ata, I. Rifai & B. Dewals

Fine sediment deposits in gravel bed rivers: Sensitivity analysis to particle properties using a 2D hydrodynamic and sediment model, H. Haddad, M. Jodeau, G. Antoine, N. Claude & C. Legout

A 2D Shallow water model with depth-dependant porosity applied to the Severn River, V. Ayoub, C. Delenne, P. Matgen, Pascal & R. Hostache

Simulation of hydro-sedimentary processes during a dam flushing event using three 1D numerical software, E.C. Lalinde, V. Dugué, T. Fretaud, M. Sécher, E. Valette, J.-B. Faure & B. Camenen

Large Eddy Simulation for flows through emerged or slightly submerged square obstacles, M. Oukacine, R. Rtimi, N. Goutal, F. Larrarte, R. Rtimi, N. Goutal, V. Loizeau,S. Benhamadouche & S. Proust

Mesh orientation and cell size sensitivity in 2D SWE solvers, D.R. Kitts, W.J. Syme, S. Gao, G. Collecutt & P.A. Ryan

Breakthrough-curve analysis for identification of contaminant source characteristics using machine learning, S.Y. Kwon, I.W. Seo & H. Noh

Automated quantification of river morphodynamics from satellite imagery for large multithreaded rivers, J. Rawee, F. Huthoff, D.C.M. Augustijn & M. van Hoek

Reconstructing the Aznalcóllar mine accident 20 year later. Numerical modelling of the flood, M. Sanz-Ramos, E. Bladé & J. Dolz

Current trends in the optimization of hydraulic flood simulations in ungauged steep rivers, A. Moraru, N. Rüther & O. Bruland

A quantitative assessment of hydrodynamic impacts due to variable discharges on the backwater deposits of Durgapur Barrage over River Damodar in India using MIKE 11, S. Nandy, R.B. Sahu, M.K. Das & B.C. Barman

A new strategy for the estimation of friction parameters in hydrodynamic modelling: Implementation to an ephemeral river, V. Bellos, I. Nalbantis & G. Tsakiris

Bank erosion in regulated navigable rivers: Towards a process-based model of bank retreat, G. Duró, A. Crosato & W.S.J. Uijttewaal

Assessment of river embankments security: A case study, C.D. Cristo, G.D. Giudice, M. Greco, F. Granata, M. Iervolino, A. Leopardi, Nicola Cifù, A. Gabriele, S. Sarracini & G.d. Marinis

Numerical modelling approaches for flow near groynes - comparison with experiments, L.R. Ambagts, F.W. Platzek, M. Baron & M.F.M. Yossef

Special session: Advanced methods in turbulence modelling of fluvial systems, organized by Fabian Bombardelli, Carlo Gualtieri & Daniel Valero

Effect of active filtering on flow around a partially submerged freshwater mussel, H. Wu, J. Zeng & G. Constantinescu

Mass and momentum exchange in lateral bank cavities with increasing aspect ratio using large-eddy simulation, P. Ouro, C. Juez & Mário J. Franca

Eddy-resolving simulation of flows over macro-roughness, F. Zabaleta & F.A. Bombardelli

Large-eddy simulation of turbulent free surface flows past a surface-piercing circular cylinder, Z. Xie, T. Stoesser & J. Xia

Investigation of water surface treatments in DES simulations and their effects on outer bank cell production in river bends, H.K. Schreiner, C.D. Rennie & A. Mohammadian

High-fidelity three-phase flow simulation of flash and riverine floods in real-life waterways, A. Khosronejad, K. Flora & S. Kang

Hydrodynamic modelling of leaky barriers with OpenFOAM, S. Leakey, C.J.M. Hewett, V. Glenis & P.F. Quinn

Numerical study of the flow and passive scalar transport in an open-channel confluence with a flat and a degraded fixed bed, T. Jin, P.X. Ramos, L. Schindfessel & T. De Mulder

Boat induced sediment resuspension and water clarity in shallow flows, S.A.V. Mateus, F.A. Bombardelli & S.G. Schladow

Mesh-size insensitive turbulence modelling for the 2D shallow water equations, G.R. Collecutt, S. Gao & W.J. Syme

The lateral mixing by waves in steep river channel, S. Karimpour & V.H. Chu

Special session: The future of river modelling, organized by Irina Overeem, Mohamed Yossef & Erik Mosselman

Automating flood-safe ecological river modelling and design, S. Schwindt & G.B. Pasternack

Combination of machine-learning method and sediment transport model to forecast sediment budget in watershed, S.-H. Chang & H.H-C. Ho

Two-dimensional modelling of hydro-morphodynamic processes in a gravel-bed river: New insights from in situ measurement progress and interoperability applications, C. Bel, M. Jodeau, N. Claude & P. Tassi

Numerical simulation of non-uniform bed-load transport using a Lagrangian method and probabilistic Exner equation, K. Ota & T. Sato

Exploring contributions of citizens’ data to improvements in modelling of an urbanized catchment: A case study in Kifissos catchment, T.H. Assumpção, I. Popescu, A. Jonoski, D.P. Solomatine & D.P. Solomatine

High performance computing in river modelling: A novel two-dimensional software for river hydro- and morphodynamic simulations, D.F. Vetsch, D. Vanzo, M. Bürgler, P. Bacigaluppi, D. Conde, R.M. Boes, S.J. Peter, L. Vonwiller & A. Siviglia

Flood risk analysis and communication using digital twins of urban areas, T. Heyer, H. Hammoudi, R. Zimmermann, L. Backhaus, J. Stamm, A. Schilling & St. Trometer

Inundation hazard analysis using open data from the web: Application to the Rio Muaguide in Mozambique, D. Biotto, G. Cancelliere, B. Corti, A. Giovannini, A. Radice & S. Rrokaj

Physical and numerical model studies of the Martigny bend as part of 3rd correction of the Rhone River, A. Amini, J.N. Saugy, G. D. Cesare, S. André, K. Essyad & T. Arborino

The application of hydrogeomorphological tools to improve agricultural watershed management in Quebec (Canada), N. Stämpfli, P.M. Biron & W. Massey

Special session: Monitoring in ecohydraulic research: new developments in facing the challenges of scales, organized by Markus Noack, Jeffrey Tuhtan, Shinji Fukuda & Margaret Chen

Experimental study on dissolved oxygen transfer into a local embayment connected to an open-channel flow, M. Sanjou, T. Okamoto & Y. Sugihara

How to address colmation best? – Field and laboratory investigations at different scales,M. Noack, L. Seitz, M.A. Mayar, S. Haun & S. Wieprecht

An estimation of the sand suspension in alpine rivers during a dam flushing event, B. Camenen, F. Thollet, R. de Angelis, A. Buffet, G. Dramais, E. Valette & S. Zanker

Investigation of fine structures in stage-discharge relations based on high-frequency streamflow time series in a gravel-bed river, K. Kawanisi & M.B.A. Sawaf

Bedload transport measurement in a Japanese gravel river using synchronized hydrodynamic and hydroacoustic pressure sensing, R. Tsubaki, J.F. Fuentes-Pérez, S. Kawamura, J.A. Tuhtan & K. Sumitomo

Multiscale change detection in a supraglacial stream using surface drifters, J.A. Tuhtan, M. Kruusmaa, A. Alexander & J.F. Fuentes-Pérez

Sub-theme: Vegetated flows

Floodplain flow resistance in case of a sparse mixture of plants at low relative submergences, W. Box, J. Järvelä & K. Västilä

Experimental investigations with foliated flexible plants at different levels of submergence, S. Niewerth & J. Aberle

On the effects of vegetated bars on river hydrodynamics, G. Artini, G. Calvani, S. Francalanci & L. Solari

Effect of the submerged vegetation distribution on flow characteristics and lateral dispersion: Experimental analysis at the apex section of a meandering laboratory flume, D. Termini

Hydrodynamics of heterogeneous vegetation patches, V. Chembolu & S. Dutta

Unsteady open-channel flows over rough bed with and without emergent rigid vegetation: A laboratory experiment, J.R. Khuntia, S. Proust & K.K. Khatua

Estimating time-varying stage-discharge relations in rivers with aquatic vegetation, E. Perret, J.L. Coz & B. Renard

From substrate to surface: The effect of vegetation-generated turbulence on surficial gas transfer, R.O. Tinoco & C-Y. Tseng

The expansion of riparian vegetation due to the change of precipitation pattern, W. Kim & S. Kim

Flow structure and mean residence time in floodplain river landscapes, T. Serra, E. Font, M. Soler & J. Colomer

Wind effect on surface exchange flows in lake-wetland interfaces, A.M. Ricardo, M. Brito, J. Nascimento, N. Abrantes, J. Pereira, F. Gonçalves & R.M.L. Ferreira

Sinuous rivers in peat, X-Y Guo, D. Chen, Z. Li, M.H. Garcia, G. Parker & G. Tanaka

Sediment transport through submerged vegetation, J.A.B. Porras, A. Armanini & A. Crosato

The impact of vegetation on sedimentation on alluvial bars along the Carampangue River, Chile, J. Aliaga, E. Flores, O. Link, F. Hellwig, F. Jeldres & A. Laborde

Investigation of hydrodynamics and sediment transport within emergent vegetation canopy, P. Ranjan, P. Fischer & R.O. Tinoco

Influence of vegetation roots on fluvial geomorphology in the riparian zone with low stream power, J.-F. Li, J.-T. Tsai & S.-C. Chen

Special session: Instream wood: restoration opportunities, flood-related hazards, and management practices, organized by Virginia Ruiz-Villanueva, Ernest Bladé, Dieter Rickenmann, Volker Weitbrecht, Robert Boes & Isabella Schalko

Flume experiments on the geomorphic effects of large wood in gravel-bed rivers, D. Ravazzolo, G. Spreitzer, H. Friedrich & J. Tunnicliffe

Experimental parameter study of local morphological changes due to large wood, K. Koll & B.A. Zaid

Effect of wood accumulation on sediment continuity at permeable sediment traps, I. Schalko, V. Ruiz-Villanueva & V. Weitbrecht

Flume experiments on wood transport in river bends, L. Innocenti, L. Solari, E. Paris & J. Aberle

Flume study on driftwood jam and flood damage to house around a bridge, T. Okamoto, T. Someya & M. Sanjou

Testing the efficiency of a woody debris retention structure for medium or small-sized rivers, D. Panici & P. Kripakaran

Scour profiles downstream of wood structures in vegetated channels, S. Pagliara, M. Palermo & D. Roy

An extraordinary event changed the (morphological) appearance of a famous Alpine stream, L. Picco, R. Rainato, G. Pellegrini, L. Martini, M.A. Lenzi & L. Mao

Computations on driftwood jamming around obstacles with a 3D-3D model, I. Kimura

A numerical method for simulating 3-D accumulation of woody debris at bridge piers, K. Osada, Y. Shimizu, R. Ettema & E. Enkhtur

A numerical study of retention facilities for accumulating woody debris in rivers, Y. Shimizu, K. Osada, S. Iwami & R. Ettema

Congestion patterns of driftwood by a wood supply interval and a collision on sand bars, T. Kang, I. Kimura & S. Onda

Large wood and the concept of ecosystem services, Z. Poledniková & T. Galia

Did you catch my drift? – Calculating the effect of instream wood buildup on bridge backwater, scour, and hydrodynamic loads, D.C. Froehlich & R.C. Elliot

How to deal with large wood recruitment after wildfires? Analysis, aspects and considerations for improving post-fire management, L. Picco, C. Scalari, L. Martini, G. Pellegrini, L. Faes, D. Sanhueza, B. Mazzorana & A. Iroumé

Retention and mobility of large wood in a Central European meandering river, T. Galia, V. Škarpich & R. Tichavský

Fish habitat restoration using large wood: Linking stream geomorphic change and fish response, C. Segura, A. Yeager & C. Lorion

Special session: Basin-scale sediment fluxes observations, organized by Carmelo Juez, Estela Nadal-Romero, Marwan Hassan & Damià Vericat

Long-term modeling of soil loss and fluvial transport processes in a mountainous semi-arid basin, southern Spain, A. Millares, J. Herrero, M. Bermúdez, J.F. Leiva & M. Cantalejo

Contribution on understanding sediment alteration in an Alpine catchment; lithology matters! A. Cattapan, P. Paron, M.E. McClain, H. Piégay & M.J. Franca

Four years of bedload transport measurements in the Swiss Mountain River Albula, D. Rickenmann, T. Nicollier, S. Boss & A. Badoux

Sediment supplies in Walloon waterways: Basin-scale monitoring and fluxes analysis, C. Swartenbroekx, G. Zorzan, F.-X. Salembier & D. Bousmar

The sediment challenge of Swiss river corridors interrupted by man-made reservoirs, C. Mörtl, S.L. Vorlet, P. Manso & G. De Cesare

Investigating the geomorphic change in the Rio Cordon basin (Italy) after Vaia Storm, L. Martini, L. Picco, R. Rainato, G. Pellegrini, M.A. Lenzi & M. Cavalli

Sub-theme: Solutions for impacted environments

How to design wood accumulation patches to increase flow variability and deposition – a flume study, I. Schalko & H. Nepf

Segmentation of topographic change by geomorphic units to assess physical habitat transitions in a restored river, G. Maniatis, R. Williams & Trevor Hoey

A way forward for building with nature in river areas, M. Barciela-Rial, F. den Heijer & J. Rijke

A geomorphic approach to evaluate river recovery potential for regulated river basin, C. Pradhan, S. Modalavalasa, S. Dutta & R. Bharti

River widening to mitigate river training induced bed erosion: a 1D model approach, R.M.J. Schielen, H.J. Barneveld, M. van den Bergh & A. Spruyt

RiverFlow2D with UAV to improve ecological corridor of wild creek in Taiwan- The case study in Geng-fang Nanshih creek, C.H. Tu & H.P. Huang

The effect of sediment reduction into wetland by channel re-meandering work on Kushiro wetland restoration project, T. Yamamoto, N. Ishida, S. Yonesaka & M. Kanaya

Remediation design to improve culvert passage for small-bodied fish, M. Knapp, H. Friedrich, P. Franklin, C. Baker & J. Montgomery

Characterizing low velocity zones around a spoiler baffle for improving fish passage performance, D. Magaju, H. Friedrich, P. Franklin, C. Baker & J. Montgomery

Effects of macro bed roughness elements in a fish pass: Scale model investigation, D. Bousmar, A. Bodarwe, T. Cabo & X. Rollin

Theme: Extreme events

Sub-theme: Flood hazard

Numerical simulation of inundation process of a heavy precipitation event: A case study of August 2014 in West Rapti River basin, Nepal, R. Talchabhadel, H. Nakagawa, K. Kawaike, K. Yamanoi & R. Prajapati

An application of ‘Big Data’ in flood risk management, D. Morrison, G. Aitken, L. Beevers & G. Wright

Historic flood reconstructions for a safer future: The use of three types of surrogate models, A. Bomers, S.J.M.H. Hulscher, B. van der Meulen & R.M.J. Schielen

Numerical analysis of river flood defences, P.J.M. Moreta, D. Karugaba, S.O. Badji, M. Elliman & R. Honeychurch

Effects of a river intervention on water levels in a bifurcating river system, M.R.A. Gensen, J.J. Warmink, S.J.M.H. Hulscher & F. Huthoff

Experimental investigation of flow in a compound channel with symmetric diverging floodplains, B.S. Das, K. Devi, J.R. Khuntia & K.K. Khatua

Characteristics of active sediment transport processes in extreme flood hazards, D. Harada, S. Egashira & H. Ito

On the behavior of the river geomorphology for extreme hydrometeorological events, S. Camacho

Sub-theme: Urban flooding

Citizen science-based urban flood monitoring in Hanumante River, Nepal, R.R. Prajapati, S. Upadhyay, P. Silwal, R. Talchabhadel, J.C. Davids & A. Khanal

A 1D-2D hydrodynamic model for sewer-overland coupled flow using GPU technology, J. Fernández-Pato, R. García & P. García-Navarro

Hydraulic model experimental study of flooding flows at the Shirakawa river in July 2012, R. Hirakawa, T. Ohmoto & X. Chen

Application of hydroinformatic tools to assess flood flow conditions under a medieval masonry arch bridge, J.L.S. Pinho, D. Oliveira & A.V. Tomé

Influence of model geometric distortion in laboratory scale modelling of urban flooding, X. Li, S. Erpicum, P. Archambeau, M. Pirotton, B. Dewals, E. Mignot, N. Rivière & A. Poupardin

Experimental analysis of urban flood intrusion into buildings, E. Mignot, L. Camusson & N. Riviere

Porous shallow water modelling in differential form: Computation of cell-based conveyance porosity fields in a real urban layout, D.P. Viero, A. Defina, A. Ferrari, R. Vacondio & P. Mignosa

Special session: Recent advances in characterization and modelling of floods from multiple sources, organized by Vasilis Bellos & María Bermúdez

A new framework for defining a priori grids in 2D runoff modelsat basin scale, D. Ferraro, P. Costabile, C. Costanzo, G. Petaccia & F. Macchione

Constructing a representative one-dimensional hydraulic model that approximates the results of a detailed two-dimensional hydraulic model, G. Tang, W. Ploeger & P. Onyshko

Inundation modelling for fluvial and pluvial flooding during typhoons – a case study in Shanghai city, Q. Ke, J. Bricker, Q. Ye, F.A. Goldaracena, T. Hohmann & A. Kallioras

Evaluating future climate-driven changes in flood hazard in Northwest Spain coastal river reaches, M. Bermúdez, L. Cea & J. Sopelana

Wave propagation in porous structures based on ISPH method, M. Ramos-Ortega, A. Beaudoin & S. Huberson

Sub-theme: Climate adaptation

Climate adaptation of Canadian floodplain maps, M.N. Khaliq

Impacts of climate change and land use on riverine sediment inputs into coastal ecosystems, E. Jorquera, A. Breda, J.F. Rodríguez & P.M. Saco

Flooding, climate change impacts and development: Lower upper Nepean river, M. Pinto

Analyzing future extreme floods for the Mississippi River Basin, S.E. Lytle, A.A. Tavakoly, E. Yeates & J. Lewis

Applying adaptive design for the replacement of a weir in the Meuse River – a case study, R.S.J. Frijns, H.G. Tuin, H.G. Voortman & J.D. Bricker

Securing the long-term sustainability of black-tailed godwits at the Nene Washes, UK, against climate change and its impact on hydrological conditions, N.J. Clemenz, D. Ocio , C. Hudson, H. Ward & C. Kitchin

Theme: Rivers under pressure

Sub-theme: Ecosystems and water quality

Assessment of transferring fish habitat preferences on estimating habitat-flow functions in rivers, H.K. Ghamry & C. Katopodis

Impact of streamflow regulation on two fish species through 2D simulations, L. Servanzi, A. Fenocchi, P. Espa, G. Petaccia & S. Sibilla

Impact of dam operations on the habitat suitability of Plecoglossus altivelis downstream of the Funagira dam, Japan, M. van Oorschot, V. Harezlak, M. Jeuken, A. Omer, Y. Kitamura, S. Giri, K. Sloff & T. Buijse

Insights from river metabolism assisted by hydrodynamics and a high frequency monitoring system of water quality for Kanawha River, West Virginia, F. Rojano, D.H. Huber, I.R. Ugwuanyi, V.L. Noundou, A.L.K. Tchamba & J.E. Chavarria-Palma

Urban stream assessment procedure: An integrative framework for assessing stream condition in the urban environment, B.M. Murphy & P.A. Nelson

Survey and modeling of surface waterbodies for decision support of the wetlands of the ttransboundary Palic-Ludas watersystem, E.A Tamás, I.R Göttlinger & G. Varga

Hydro-morphological management to improve navigation and ecological functions on the ‘Canal del Dique’ Colombia, M. Busnelli & F. Schuurman

Predicting flow and vegetation status in floodplain wetlands during drought, S.G. Sandi, J.F. Rodriguez, P.M. Saco, G. Kuczera, K.R. McDonough, L. Wen, N. Saintilan & G. Riccardi

Can stream and river restoration solve the excess nitrogen problem? E.T. Hester, D.T. Scott, D.L. Azinheira, K.E. Brooks, M. Calfe, C. Guth, B. Hammond, A.Y. Lin & C.W. Tsai

Capture method of floating garbage by using riverside concavity zone, A. Tominaga, Z. Tang & T. Zhou

Plastic delivery from river to sea: Experiments on transport processes, S. Francalanci, A. Menci, E. Paris, F. Ruggero & L. Solari

Sub-theme: Engineered rivers

Water balance in the Dutch river Rhine and rating curve uncertainty, J.J. Twijnstra, M.R.A. Gensen, J.J. Warmink, S.J.M.H. Hulscher, F. Huthoff & G. Horn

Meandering meuse: In search of an optimal combination of river widening and dike strengthening - leading to multiple gains, P.W.H.L. van den Brand & J.A.L.W. Tielen

Response of flood discharge capacity to the channel boundary and upstream conditions in a braided reach, Y. Cheng, J. Xia, S. Deng & M. Zhou

Optimization of water resources in highly regulated rivers: A case study from the Garda-Mincio basin, Italy, L. Hinegk, L. Adami, G. Zolezzi & M. Tubino

Flow patterns at the side channel entrance of a longitudinal training dam, T.V. de Ruijsscher, B. Vermeulen & A.J.F. Hoitink

Flow resistance in smooth-bed open-channel flows with streamwise bed ridges, W. Patella, S.M. Cameron & V.I. Nikora

Evaluating the performance of geobag revetments in rivers, L. Khajenoori, G. Wright & M. Crapper

Exploring stability analysis of the groundsill, F.H. Yang & H.P. Huang

New investigation of the riverbed incision of the middle Danube reach in light of sediment transport issues and the future of floodplain wetlands, E.A. Tamás & B. Kalocsa

Dam-induced riverbed incision and saltwater intrusion in the Mekong Delta, D.V. Binh, S. Kantoush, T. Sumi, N.P. Mai & L.V. Trung

Back to pristine levels? Decreasing suspended sediment transport in German waterways, T.O. Hoffmann, Y. Baulig, S. Vollmer & J. Blöthe

How to maintain sediment continuity at the intake of a flood diversion tunnel, A. Wyss, F. Hinkelammert-Zens, I. Röber & V. Weitbrecht

Watershed scale impacts of upstream sediment supply on the mainstem of a river network, M. Ahammad, J.A. Czuba, A. Pfeiffer, B.P. Murphy & P. Belmont

Integrating field measurements and modelling for optimal operation of cascade dams in Tenryuu River, Y. Kitamura, A.Y.A Omer, S. Giri, M.F.M. Yossef, I. Niesten, M.V. Oorschot & K. Sloff

Movement and discharge of sediments during the coordinated sediment flushing operation of the Dashidaira dam and the Unazuki dam,S. Fukuoka & K. Suzuki

Towards sustainable sediment management strategies in Mediterranean reservoirs: Insights from the Guadalfeo semiarid river basin, M. Bermúdez, A. Millares, A. Lira-Loarca & A. Baquerizo

Impact of dredging on the Nile River downstream Isna Barrage, A.M. Gaweesh, M.N. El-Bahlol & M.A. Abdul-Muttalib

The effects of dredging activities on the multi-channel network of the Western Scheldt, W.M. van Dijk, J.R.F.W. Leuven, M.G. Kleinhans, J. Cleveringa & M. Taal

Assessing bridges liable to debris accumulations from satellite imagery, D. Panici

Sub-theme: Navigation

Measurement of boat generated waves in navigable rivers, Y. Ozeren & L. Rébillout

Operational 2D water depth prediction using echo sounder data of inland ships, C.F. van der Mark & M. Lemans

Numerical study of ship induced bed shear stress, M. Gopichand, T.K. Pradhan, K Murali & Venu Chandra

Functionality of artificial gravel islands in a large gravel-bed river, M. Tritthart, M. Glas, K. Glock, M. Liedermann, H. Habersack & C. Hauer

Numerical analysis of filling/emptying operation proposals for ship-locks chambers used for inland navigation, O. Herrera-Granados

Sub-theme: Hydropower and dams

Investigating damping properties in a bypass river, A.J. Burman, A.G. Andersson & J.G.I. Hellström

Warning waves to protect human beings in bypassed river reaches of hydropower schemes, B. Dewals, F. Stilmant, S. Erpicum, P. Archambeau & M. Pirotton

Hydrodynamic and ethohydraulic analysis of a water vortex power plant for assessment of fish passability,J. Stamm, N. Müller, Ch. Jähnel, F. Wagner & P. Warth

Hydropower Generation Considering the Environmental Flow in Myitnge River Basin, Myanmar, S.S. Hlaing, W.W. Zin, C.C.T. Kyi & Z.M.L.T. San

Experimental analysis of hydraulic jump on Levane Dam physical model, L. Lotti, S. Morozzi, F. Castelli & E. Paris

Combining construction and renovation works to increase techno-economic feasibility of very low head run of river hydro power, S.R. van Erp, J.D. Bricker, P. Buijs, H.G. Voortman & M. Marence

Enhancing flow induced vibrations of a thin piezoelectric cantilever: Experimental analysis, M. Curatolo, V. Lombardi & P. Prestininzi

Experimental results and modelling of pressure loss generated by flexible structures placed in a turbulent flow, T. Larrieu, G. Pineau, D. Calluaud & L. David

Author index