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Coastal Dynamics 2017 Paper No. 156 513 How Tides and Waves
Coastal Dynamics 2017 Paper No. 156 How Tides and Waves Enhance Aeolian Sediment Transport at The Sand Motor Mega-nourishment , 1,2 1 1 Bas Hoonhout1 2, Arjen Luijendijk , Rufus Velhorst , Sierd de Vries and Dano Roelvink3 Abstract Expanding knowledge concerning the close entanglement between subtidal and subaerial processes in coastal environments initiated the development of the open-source Windsurf modeling framework that enables us to simulate multi-fraction sediment transport due to subtidal and subaerial processes simultaneously. The Windsurf framework couples separate model cores for subtidal morphodynamics related to waves and currents and storms and aeolian sediment transport. The Windsurf framework bridges three gaps in our ability to model long-term coastal morphodynamics: differences in time scales, land/water boundary and differences in meshes. The Windsurf framework is applied to the Sand Motor mega-nourishment. The Sand Motor is virtually permanently exposed to tides, waves and wind and is consequently highly dynamic. In order to understand the complex morphological behavior of the Sand Motor, it is vital to take both subtidal and subaerial processes into account. The ultimate aim of this study is to identify governing processes in aeolian sediment transport estimates in coastal environments and improve the accuracy of long-term coastal morphodynamic modeling. At the Sand Motor beach armoring occurs on the dry beach. In contrast to the dry beach, no armor layer can be established in the intertidal zone due to periodic flooding. Consequently, during low tide non-armored intertidal beaches are susceptible for wind erosion and, although moist, may provide a larger aeolian sediment supply than the vast dry beach areas. -
PUB Commences Coastal Protection Study at City-East Coast
PUB commences coastal protection study at City-East Coast First site-specific study key to developing a flood resilient master plan to protect Singapore’s south-eastern coastlines from sea-level rise Singapore, 18 May 2021 – National Water Agency PUB will commence a site-specific study along Singapore’s City-East Coast, looking into possible solutions to protect it from the threat of rising seas caused by climate change. This is the first of a series of planned studies for different parts of Singapore’s coastline to be progressively carried out over the next few years, and are a key plank in Singapore’s long-term coastal protection plans. 2 The study covers 57.8 km of the coastline, across three areas (see Annex A for detailed infographic showing the scope of study) – Changi, the East Coast-Marina stretch and part of the Greater Southern Waterfront district. This section of the coastline had been identified to be more vulnerable and critical based on factors such as the potential impact of a flood event, criticality of assets (e.g. airports, economic and industrial districts) and opportunities to dovetail with upcoming developments. 3 The study will take around four years to complete, and will include work such as literature review to glean international best practices, collecting site data to support design works, formulating adaptation measures and pathways and developing the designs of solutions to mitigate flood risks. 4 Ms Hazel Khoo, Director of PUB’s Coastal Protection Department, said, “When PUB was appointed national coastal protection agency in April 2020, this study was earmarked as a significant milestone in our mission to prepare Singapore for the impacts of sea-level rise. -
Coastal Dynamics 2017 Paper No
Coastal Dynamics 2017 Paper No. 157 INTEGRATED MODELLING OF THE MORPHOLOGICAL EVOLUTION OF THE SAND ENGINE MEGA-NOURISHMENT Arjen Luijendijk1,2, Rufus Velhorst1, Bas Hoonhout1,2, Sierd de Vries1, and Rosh Ranasinghe2,3 Abstract This study presents some recent developments in coastal morphological modeling focusing on flexible meshes, flexible coupling between models operating at different time scales, and a recently developed morphodynamic model for the intertidal and dry beach. This integrated modeling approach is applied to the Sand Engine mega nourishment in The Netherlands to illustrate the added-values of this integrated approach. A seamlessly coupled modeling system for Delft3D and AeoLiS has been developed and applied to compute the first years of evolution of the Sand Engine, both for the subaqueous and subaerial areas. The subaqueous bed level changes have been computed with the new Flexible Mesh version of Delft3D, resulting in comparable accuracy levels as to the standard Delft3D version. The integrated morphodynamic prediction of both subaqueous and subaerial reveals a qualitative behavior which is very similar to observations. Model results confirm that after the first year after construction the sand supply for aeolian transports is predominantly from the intertidal area. The AeoLiS model results indicate a significant intertidal erosion volume of about 230,000 m3 over the five year period, which is a not to be neglected volume, especially in multiyear or decadal predictions. Interestingly, the model results show that the spit, developed by the wave-related processes, is also subject to aeolian transports acting on the emerged spit during lower tides. The seamlessly coupled models are now able to combine the dry beach behaviour with subaqueous morphodynamic evolution, which is important in medium-term to decadal morphodynamic predictions but also relevant for designing such sandy solutions incorporating lakes, lagoons, and relief. -
The Influence of the Sand Engine on the Sediment Transports And
The influence of the Sand Engine on the sediment transports and budgets of the Delfland coast Analysis of bi-monthly high-resolution coastal profiles L.W.M. Roest Master thesis Hydraulic Engineering Front cover: Aerial photograph of the Sand Engine with Scheveningen in the background. Taken on 16 February 2016, by Rijkswaterstaat/Jurriaan Brobbel, https://www.flickr.com/photos/zandmotor/25106436435/ Back cover: Aerial photograph of the Sand Engine looking to the South. Taken on 16 February 2016, by Rijkswaterstaat/Jurriaan Brobbel, https://www.flickr.com/photos/zandmotor/25080093026/ The influence of the Sand Engine on the sediment transports and budgets of the Delfland coast Analysis of bi-monthly high-resolution coastal profiles Master Thesis For the degree of Master of Science in Civil Engineering at Delft University of Technology To be publicly defended on 17th August 2017 L.W.M. Roest 10th August 2017 Graduation committee: prof.dr.ir. S.G.J. Aarninkhof Delft University of Technology dr.ir. S. de Vries Delft University of Technology dr.ir. M.A. de Schipper Delft University of Technology dr. M.F.S. Tissier Delft University of Technology An electronic version of this thesis is available at http://repository.tudelft.nl/ Faculty of Civil Engineering and Geosciences (CEG) · Delft University of Technology Abstract The Sand Engine is a new innovation in coastal protection, a mega feeder nourishment. This pilot project was constructed in 2011 along the Delfland coast, which is historically prone to erosion. Since its construction, the Sand Engine is intensively being monitored to track the morphological development. The objective of this thesis is therefore to assess how the morphology of the Sand Engine is evolving over time and how this evolution contributes to the sediment budgets of the Delfland coast. -
Observations of the Sand Engine Pilot Project
Coastal Engineering 111 (2016) 23–38 Contents lists available at ScienceDirect Coastal Engineering journal homepage: www.elsevier.com/locate/coastaleng Initial spreading of a mega feeder nourishment: Observations of the Sand Engine pilot project Matthieu A. de Schipper a,b,⁎, Sierd de Vries a, Gerben Ruessink c, Roeland C. de Zeeuw b, Jantien Rutten c, Carola van Gelder-Maas d, Marcel J.F. Stive a a Faculty of Civil Engineering and Geosciences, Department of Hydraulic Engineering, Delft University of Technology, Delft, The Netherlands b Shore Monitoring and Research, The Hague, The Netherlands c Faculty of Geosciences, Department of Physical Geography, Utrecht University, Utrecht, The Netherlands d Ministry of Infrastructure and the Environment (Rijkswaterstaat), Lelystad, The Netherlands article info abstract Article history: Sand nourishments are a widely applied technique to increase beach width for recreation or coastal safety. As the Received 10 July 2015 size of these nourishments increases, new questions arise on the adaptation of the coastal system after such large Received in revised form 19 October 2015 unnatural shapes have been implemented. This paper presents the initial morphological evolution after imple- Accepted 30 October 2015 mentation of a mega-nourishment project at the Dutch coast intended to feed the surrounding beaches. In Available online xxxx total 21.5 million m3 dredged material was used for two shoreface nourishments and a large sandy peninsula. The Sand Engine peninsula, a highly concentrated nourishment of 17 million m3 of sand in the shape of a Keywords: fi Alongshore feeding sandy hook and protruding 1 km from shore, was measured intensively on a monthly scale in the rst 18 months Mega nourishment after completion. -
Building with Nature in Search of Resilient Storm Surge
Nat Hazards (2013) 65:947–966 DOI 10.1007/s11069-012-0342-y CONCEPTUAL NOTE TO THE EDITOR Building with Nature: in search of resilient storm surge protection strategies E. van Slobbe • H. J. de Vriend • S. Aarninkhof • K. Lulofs • M. de Vries • P. Dircke Received: 29 September 2011 / Accepted: 1 August 2012 / Published online: 13 September 2012 Ó Springer Science+Business Media B.V. 2012 Abstract Low-lying, densely populated coastal areas worldwide are under threat, requiring coastal managers to develop new strategies to cope with land subsidence, sea- level rise and the increasing risk of storm-surge-induced floods. Traditional engineering approaches optimizing for safety are often suboptimal with respect to other functions and are neither resilient nor sustainable. Densely populated deltas in particular need more resilient solutions that are robust, sustainable, adaptable, multifunctional and yet eco- nomically feasible. Innovative concepts such as ‘Building with Nature’ provide a basis for coastal protection strategies that are able to follow gradual changes in climate and other environmental conditions, while maintaining flood safety, ecological values and socio- economic functions. This paper presents a conceptual framework for Building with Nature E. van Slobbe (&) Alterra, Wageningen University and Research Centre, PO Box 47, 6700 AA Wageningen, The Netherlands e-mail: [email protected] H. J. de Vriend EcoShape Foundation/Deltares/Delft University of Technology, Burgemeester de Raadtsingel 69, 3311 JG Dordrecht, The Netherlands S. Aarninkhof EcoShape Foundation/Royal Boskalis, Burgemeester de Raadtsingel 69, 3311 JG Dordrecht, The Netherlands K. Lulofs School of Management and Governance, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands M. -
This Proceedings Contains More Than 300 Papers Presented at the 28Th
COASTAL ENGINEERING 2010 Proceedings of the 32nd International Conference COASTAL ENGINEERING 2010 30 June – 5 July 2010 Shanghai, China edited by Jane McKee Smith U.S. Army Engineer Research and Development Center Coastal and Hydraulics Laboratory, USA Patrick Lynett Texas A&M University, USA Abstract: This Proceedings contains 363 papers and 29 posters presented at the 32nd International Conference on Coastal Engineering, which was held in Shanghai, China, 30 June to 5 July 2010. The Proceedings is divided into seven parts: Keynote; Waves; Swash, Nearshore Currents, and Long Waves; Sediment Transport and Morphology; Coastal Structures; Coastal Management, Environment, and Risk, and Posters. The individual papers cover a broad range of topics including theory, numerical and physical modeling, field measurements, case studies, design, and management. These papers provide engineers, scientists, and planners state-of-the-art information on coastal engineering and coastal processes. Foreword The 32nd International Conference on Coastal Engineering (ICCE 2010) was held in Shanghai, China, 30 June to 5 July of 2010. The Local Organizing Committee, led by Xie Shileng, Ge Jiufeng, Dou Xiping, and Zuo Qihua, is acknowledged for their dedicated preparation over many years that led to a successful conference with broad participation. Six-hundred attendees from 38 countries gathered at the Shanghai International Convention Center to discuss research and applications in coastal engineering. The papers contained in this Proceedings cover a wide range of topics including waves; swash, nearshore currents, and long waves; coastal management, risk, and environmental restoration; sediment transport and morphology; and coastal structures. The authors have provided state-of-the-art contributions, and this volume could not be produced without their commitment to solving coastal engineering challenges. -
Monitoring En Evaluatie Pilot Zandmotor Fase 2 Evaluatie Benthos, Vis, Vogels En Zeezoogdieren 2010 - 2014
Monitoring en Evaluatie Pilot Zandmotor Fase 2 Evaluatie benthos, vis, vogels en zeezoogdieren 2010 - 2014 J.W.M. Wijsman, R. van Hal en R.H. Jongbloed Deltares project 1205045-000 IMARES project 4303103201 © Deltares, 2015 Titel Monitoring en Evaluatie Pilot Zandmotor - Fase 2 Evaluatie benthos, vis, vogels en zeezoogdieren 2010 - 2014 Opdrachtgever Project Kenmerk Pagina's Rijkswaterstaat Water, 1205045-000 1205045-000-ZKS-0107 109 Verkeer, Leefomgeving IMARES C125/15 Trefwoorden Zandmotor, benthos, vis, vogels, zeezoogdieren, evaluatie. Samenvatting Dit document beschrijft de resultaten van de tussentijdse evaluatie voor het onderdeel ecologie van monitoring en evaluatieproject Zandmotor. In deze evaluatie zijn de hypothesen getoetst aan de hand van de veldgegevens die zijn verzameld in de periode 2010 tot en met 2014. Deze evaluatie is een opmaat voor de evaluatie die in 2016 zal worden uitgevoerd aan het eind van Fase II van dit project. De meest recente gegevens voor bodemdieren en vis die zijn meegenomen in deze evaluatie dateren van het najaar van 2013. De Zandmotor bestond toen al 2 jaar. De analyses laten duidelijke patronen zien die mede zijn veroorzaakt door de aanwezigheid van de Zandmotor. Zo is er in de beschutte gebieden in en rond de Lagune een specifieke bodemdiergemeenschap aangetroffen die niet wordt aangetroffen in de meer geëxponeerde gebieden. Aanvankelijk was de beschutte lagune ook een geschikt gebied voor juveniele schol, maar waarschijnlijk vanwege de invang van organisch rijk slib in de lagune is dit snel minder geworden. De stranden van de lagune zijn wel een interessant gebied geworden voor steltlopers, meeuwen en aalscholvers. De verwachting is dat de meer geleidelijke sedimentatie (over een periode van 20 jaar) van het zand van de Zandmotor aan de stranden en de vooroever zullen leiden tot een andere bodemdiergemeenschap ten opzichte van de bodemdiergemeenschap die iedere 3-5 jaar wordt verstoord door een reguliere suppletie. -
Front Matter
Cambridge University Press 978-0-521-87812-8 - Geomorphology and Global Environmental Change Edited by Olav Slaymaker, Thomas Spencer and Christine Embleton-Hamann Frontmatter More information Geomorphology and Global Environmental Change How will global environmental change affect our landscape and Columbia. He is a Former President of the Canadian Association the way we interact with it? The next 50 years will determine the of Geographers and the International Association of future of the environment in which we live, whether catastrophe or Geomorphologists, and a Linton Medallist. He has held visiting reorganisation. Global climate change will potentially have a professorships at the universities of Vienna, Canterbury, Oslo, profound effect on our landscape, but there are other important Southern Illinois, Taiwan, and Nanjing. He has authored 120 drivers of landscape change, including relief, hydroclimate and refereed journal articles and authored and edited 20 books. He is a runoff, sea level change and human activity. This volume Co-Editor-in-Chief of Catena and member of nine international summarises the state of the art concerning the landscape-scale editorial boards. geomorphic implications of global environmental change. It analyses the potential effects of environmental change on a THOMAS SPENCER is University Senior Lecturer in the range of landscapes, including mountains, lakes, rivers, coasts, Department of Geography, Director of the Cambridge Coastal reefs, rainforests, savannas, deserts, permafrost, and ice sheets and Research Unit, University of Cambridge, and Official Fellow, ice caps. Magdalene College, Cambridge. His research interests in wetland Geomorphology and Global Environmental Change provides a hydrodynamics and sedimentation, coral reef geomorphology, sea benchmark statement from some of the world’s leading level rise and coastal management have taken him to the Caribbean geomorphologists on the state of the environment and its likely Sea, the Pacific and Indian oceans, Venice and its lagoon and the near-future change. -
CERF-JCR Regional Vice Presidents
Table of Contents CERF-JCR RVP Coastal Education and Research Foundation [CERF] is pleased to announce our newly appointed Regional Vice Presidents (RVP), who through- out the international scientific community continue to provide outstanding representation of our coastal research society. Please join us in hon- oring the following individuals for their tremendous service and support of CERF and the JCR. CERF-JCR Regional Vice Presidents North America Oceania Gary B. Griggs, Ph.D. Charles Lemckert, Ph.D. James R. Houston, Ph.D. Anja Scheffers, D.Sc. Timothy W. Kana, Ph.D. Vic Semeniuk, Ph.D. Norberto C. Nadal-Caraballo, Ph.D. Andrew D. Short, Ph.D. Western Europe Southeast Asia Luciana S. Esteves, Ph.D. Hak Soo Lim, Ph.D. Carlos Pereira da Silva, Ph.D. Nobuo Mimura, D.Eng. Marcel J.F. Stive, Ph.D. Eastern Europe South America Niki Evelpidou, Ph.D. Vanda Claudino-Sales, Ph.D. Kazimierz K. Furmańczyk, D.Sc. Omar Defeo, D.Sc. Middle East and N. Africa Michael Phillips, Ph.D. 86 Just Cerfing Vol. 12, Issue 2 February 2021 Continued on Next Page 87 Table of Contents CERF-JCR RVP CERF-JCR RVP (North America) Gary B. Griggs, Ph.D. Timothy W. Kana, Ph.D. Gary Griggs, Ph.D., is a Distinguished Professor of Earth and Planetary Sci- Tim Kana, Ph.D., is the founder and president of Coastal Science & Engineer- ences at the University of California Santa Cruz where he has been on the ing, Inc. (CSE-Columbia, South Carolina, USA), with 35 years of experience faculty for 52 years. He directed the Institute of Marine Sciences for 26 years in coastal erosion projects in a wide range of settings including the Carolinas, where he led the development of the University’s Coastal Science Campus. -
Third Announcement
COASTLAB2020 8th INTERNATIONAL CONFERENCE ON THE APPLICATION OF PHYSICAL MODELLING IN COASTAL AND PORT ENGINEERING AND SCIENCE CALL FOR ABSTRACTS Homepage: www.coastlab2020.com ConferenCe Email: [email protected] [email protected] LOC Chairs of CoastLab2020 Pengzhi Lin, Sichuan University Zhiguo He, Zhejiang University Dezhi Ning, Dalian University of Technology COASTLAB2020 – Zhoushan, China - May 25th-29th, 2020 WELCOME LETTER On behalf of the CoastLab2020 Organizing Committees, it is our great pleasure to invite you to participate in the 8th International ConferenCe on the AppliCation of PhysiCal Modelling in Coastal and Port Engineering and Science (CoastLab2020) during the 25th -29th of May, 2020 in Zhoushan, China. CoastLab2020 is organized under the auspices of the International Association of Hydro-Environment Engineering and Research (IAHR). It will be jointly hosted by Zhejiang University, Dalian University of Technology, Sichuan University and Zhejiang Ocean University, and co- organized by Hohai University. CoastLab2020 will build on the successes of previous conferences held in Porto (2006), Bari (2008), Barcelona (2010), Ghent (2012), Varna (2014), Ottawa (2016) and Santander (2018). It will provide a stimulating and enriching forum to discuss the latest developments in physical modelling applied to coastal engineering and new trends in coastal sciences. We are looking forward to collaborating with the Coastal and Maritime Hydraulics Committee of IAHR to host a successful CoastLab2020 in Zhoushan. Yours Sincerely -
Sand Engine Quells the Coast's Hunger for Sand
Sand engine quells the coast's hunger for sand « former article | content | next article » Category: Science An artificial peninsula at Ter Heijde is designed to feed the coast with sediment. Scientists are investigating whether this kind of sand engine could be the Netherlands’ answer to rising sea levels. Thomas van Dijk At the foot of the dunes in the coastal resort of Ter Heijde, Matthieu de Schipper and Sierd de Vries carefully cross the sand in their four-wheel drive vehicle. The dunes here have recently been reinforced. Neat lines of beach grass protrude from the sand at intervals of some 30 cm. “Pretty different to what you get with the sand engine,” says De Schipper. Through the other window he points to where we are heading: a massive hook-shaped expanse of sand extending 1 km out to sea. “The waves, sea current and wind are creating all kinds of gullies and bays around the sand engine. It’s wonderful to let nature do her work.” “Building with nature” has now become the watchword for hydraulic engineering. It’s also the theme of the PhD research that De Schipper and his colleague, De Vries, are working on. The two researchers from the faculty of Civil Engineering and Geosciences (CEG) are regular visitors to this peninsula. “We come to count the grains of sand,” De Schipper jokes. This sand engine provides the hydraulic engineers with a superb testing ground. Last year, dredging companies Van Oord and Boskalis used trailer suction hopper dredgers to deposit 21.5 million cubic metres of sand here.