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Deltares Individual Wave Overtopping Tests

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UnderTASK 8.2: INNOVATIVE APPROACHES FOR REPRESENTING VARIABILITY AND UNSTEADINESS IN FLUME FACILITIES, Deltares ran Individual Wave Overtopping Tests in the Scheldt Flume at Deltares.

A series of 27 tests in the Scheldt Flume at Deltares were used in this study. The tests were characterized by a breakwater with a smooth slope that was exposed to approximately 1000 waves. Between the different tests the water levels (3), wave height (3) and wave steepness (3) varied. In addition, the same series of 27 tests (and 6 repetitions) with the same wave forcing and similar breakwater shape, but with a rubble mount slope and crest wall, was used to broaden the applicability of the automated semantic segmentation techniques to more turbulent waves. These tests were used for model training, but model testing focused on the smooth slope tests since a better model/data comparison was possible. Data were acquired from 150 Hz high-speed video footage through the glass flume wall using a single camera mounted on a tripod approximately 1 m from the flume. A flow depth measurement at the breakwater crest is used to order the waves on impact. From the top 100 waves with largest flow depth in each test 50 waves are used in the analysis. Figure 1 shows an overtopping wave.

Results can be found on page of the website.

HYDRALAB+ Next Generation Researchers’ Workshop

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Second Training Workshop for Next Generation to be done at iCIEM infrastructure at LIM/UPC (Barcelona): Representing environmental complexity in experimental design and acoustic measurement techniques

Fifteen of the best early career researchers coming from 12 countries have met in Barcelona from 6th to 8th Febraury 2018 in the facilities of the Maritime Engineering Laboratory of the Catalonia University of Technology (LIM/UPC) for a high-level 3 days’ workshop on the topic of the hydro-morphodynamic measurement techniques representing the environmental complexities.

Special focus has been given to acoustic measurements used both in the laboratory and in the field. Velocity structures, sediment concentration, free surface elevation and bed forms were the main topics reviewed during the workshop. The spokesmen were recognized professionals from the scientific and commercial world who made their knowledge available to the next generation researchers.

They have been able to see firsthand different sensors and to participate in masterclasses on the measuring principles, the instrumental deployment, both in laboratory and in the field, an application case and the systems commercially available. They also had the unique opportunity to work both in the large and small scale wave flumes of LIM/UPC setting up different pieces of equipment and collecting data-sets.

The last day the students worked on the collected data performing data analysis under the guidance of the professors and applying all the knowledge acquired in the previous days. The final keynote has been given by the professor and director of the LIM/UPC, Agustin Sanchez-Arcilla on how important are these measurements for climate change and adaptation for coastal processes. 

We would like to take this opportunity to tahnk all the people involved in the preparation and organisation of this event and in particular, staff at the Catalonia University of Technology and all the speakers on these 3 day event.


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The HYDRALAB+ project of the Horizon 2020 Programme of the European Union, held its 4th project event from 22nd to 26th January 2018 in the French city of Grenoble. The meeting brought together all the participants in the project, including project partners and associate partners. This was the opportunity for the project team to analyze the progress of the planned programming in the 3 different Joint Research Activities and Transnational Access.

The HYDRALAB+ meeting salso included an advanced workshop on Protocols for scaling morphodynamics in time (as part of the JRA1 RECIPE: CLimate change in physical experiements research) and  a workshop on Climate Change Community Stakeholders that saw a number of very interesting presentations by project stakeholders including  presentations from the Catalan Office for Climate Change and a presentation on EU climate adaptation strategy for Flood risks from the EU Joint Research Centre.

Finally the CNRS, Laboratoire LEGI in Grenoble (France) also organised on Tuesday 23rd January a technical fieldtrip to the LEGI laboratory including the Corioluis platform and a participant dinner on the 24th.

We look forward to our next meeting in Catania, Italy in September 2018.

Internship on experimental methods in hydraulics; scale model tests; sensor calibration; image analysis.

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A new internship onexperimental methods in hydraulics; scale model tests; sensor calibration; image analysis. is offered at HR Wallingford, Wallingford, UK. The internship will run between March and June 2018 for a duration of 2 weeks. Key skills to be acquired will include experimental methods in hydraulics; scale model tests; sensor calibration; and image analysis.

For more information as well as contact details and information on how to apply, please visit the HYDRALAB+ website dedicated page on

Internship on Particle Image Velocimetry in rough flows

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A new internship on Particle Image Velocimetry in rough flows is offered at NTNU, Trondheim, Norway. The internship will run from February to July / August 2017 for a duration of 6/7 months. ey skills to be acquired will include experimental methods in hydraulics; scale model tests; sensor calibration; Image analysis; Matlab.

For more information as well as contact details and information on how to apply, please visit the HYDRALAB+ website dedicated page on

Announcing the 4th HYDRALAB+ project event in Grenoble France, 22nd to 26th January 2018

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The website is open for registration: 

Programme in short:

Monday 22 January:
Management Team meeting (closed meeting)

Tuesday 23 January:
Plenary Participant meeting including Field trip and TA Providers meeting (closed meeting)

Wednesday 24 January:
Advanced worshop on JRA1 RECIPE on Protocols for scaling morphodynamics in time and workshop on Climate Change Community - Stakeholders

Thursday 25 January:
Joint discussion on specific JRA issues (Foresight Studies, JRA3, JRA2)

Friday 26 January:
Joint discussion on specific JRA issues (JRA1)

The participant dinner is on Wednesday night and the technical fieldtrip to the LEGI laboratory, including the Coriolis platform will follow the Participant meeting on Tuesday afternoon.

To register you go to  and click on ‘register for event’. At that page you can also invite a guest with the ‘Add an Invited Guest’ button. Work Package leaders should use this button for invited external guests, who will then receive a password to register.

We are looking forward meeting you in Grenoble!

Joel Sommeria (Organising Team CNRS)
Frans Hamer (Coordinator HYDRALAB+)

HYDRALAB+ Next Generation Researchers Workshop

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HYDRALAB+ is providing an opportunity for PhD students and Early Careers Researchers to participate in a workshop to be done at ICIEM infrasructure at LIM/UPC (Barcelona) looking at: Reprsenting Environmental Complexity in Experimental Design an Acoustic Measurement Techniques.

The students will follow a path into the different acoustic measurement techniques. Starting from the measuring principles, the set-up in a large scale wave flume, the data collection and finally the data analysis. Different application cases will be presented. The workshop will include masterclasses, laboratory experiments and data analysis practices. The workshop will end with a series of presentations on the four main topics performed by the students.

The workshop will take place at the Campus Nord UPC, Barcelona and will be divided into four main topics all related to acoustic hydro-morphodynamic measurements representing environmental complexity:

  • Velocity structures
  • Sediment concentration
  • Free surface elevation and evolution
  • Bed morphology

If you are interested in applying, please apply by 15th December 2017 using the web form on page You should explain why the workshop will benefit your research or PhD studies (200 words) and attach a 1-page CV. Successful applicants will be offered a place on the workshop by 23rd of December 2017. You will be able to claim up to 800 Euros towards your transport costs. Accommodation and some meals are provided.

Presentation and keynote on acounstics and the study of sediment dynamics posted live

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New presentation and keynote on acounstics and the stuy of sediment dynamics published live.

We have now added results on biostabilisation due to biofilm growth on:

  • Outlooks on acoustics and the study of sediment dynamics, and
  • Perspective of ongoing acoustics developments for measuring sediment dynamics

on the results section of the COMPLEX: morphodynamics and protective structures results page of the HYDRALAB+ website,

You can find these on page

'Experimental techniques for evaluating biomechanical properties of plants' Video published to the Virtual Learning Community

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A new video from the Hydralab+ Virtual Learning Community is now available on our Youtube channel (click here). The video demonstrates experimental techniques for evaluating biomechanical properties of plants. More videos on new technologies, good practice in experimentation, instrumentation and data analysis in the physical modelling community will be made available as the Hydralab+ project progresses.

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